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Contents
- The climate of Chula Vista
- The best time to visit Chula Vista
- The worst time to visit Chula Vista
- Spring weather in Chula Vista
- Summer weather in Chula Vista
- Autumn weather in Chula Vista
- Winter weather in Chula Vista
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Wood and rope barriers at sunset on the waterfront of Bayside Park in Chula Vista, San Diego Bay, California
The climate of Chula Vista
Chula Vista in California, USA, experiences a BSk classified climate under the Köppen climate classification. The city resides in a mid-latitude steppe geographical zone. This climate type corresponds to semi-arid conditions, where overall moisture is relatively low. The data collected over the 12 months states that temperatures vary significantly throughout the year.
Observing the monthly averages, the minimum temperature ranges from 51.4°F (10.8°C) to 66.7°F (19.3°C), while the maximum temperature spans from 63.7°F (17.6°C) to 79.2°F (26.2°C). This fluctuation suggests considerable seasonal variation with warmer temperatures typically experienced from June to September. Another notable characteristic is the relative humidity, which shifts from 58% to 71% across different months.
Rainfall recorded in Chula Vista is not hefty. It fluctuates from a minimum of 0.08" (2mm) to a maximum of 1.1" (28mm). Months can have rainfall days varying from 1.7 days to 7.2 days, indicating the city does not experience torrential downpours. The information also indicates that wind speeds do not exceed 6.8mph (10.9km/h) on average, suggesting calm and mild winds throughout the year.
Observing the monthly averages, the minimum temperature ranges from 51.4°F (10.8°C) to 66.7°F (19.3°C), while the maximum temperature spans from 63.7°F (17.6°C) to 79.2°F (26.2°C). This fluctuation suggests considerable seasonal variation with warmer temperatures typically experienced from June to September. Another notable characteristic is the relative humidity, which shifts from 58% to 71% across different months.
Rainfall recorded in Chula Vista is not hefty. It fluctuates from a minimum of 0.08" (2mm) to a maximum of 1.1" (28mm). Months can have rainfall days varying from 1.7 days to 7.2 days, indicating the city does not experience torrential downpours. The information also indicates that wind speeds do not exceed 6.8mph (10.9km/h) on average, suggesting calm and mild winds throughout the year.
The best time to visit Chula Vista
Based on weather averages, the best time to visit Chula Vista is between June and September. During these months, the city experiences its warmest temperatures, ranging from 72.7°F (22.6°C) to 79.2°F (26.2°C). Relative humidity leans on the less intense side, ranging from 67% to 71%, providing pleasant weather conditions for outdoor activities. Rainfall is also at its minimum during these months, with 0.08" (2mm) to 0.28" (7mm) of precipitation, making it ideal for those wishing to make the most of the city’s outdoor attractions without the disturbance of rainfall.
The worst time to visit Chula Vista
The months of January and February seem to be less inviting for visitors. During this period, the temperatures are the lowest in the year, dropping to around 51.1°F (10.6°C) to 51.8°F (11°C). These months also record a comparatively higher level of rainfall, reaching up to 1.1" (28mm) with 4.7 to 5.6 days of rainfall. Hence, visitors looking for maximum outdoor activities may find this time of year less appealing.
Spring weather in Chula Vista
Spring weather in Chula Vista, falling between March and May, is quite inviting. Temperatures saw a comfortable range from 52.2°F (11.2°C) to 56.3°F (13.5°C) at the low end and 65.5°F (18.6°C) to 68.5°F (20.3°C) at the high end. While March experiences the highest number of rainfall days during spring with 7.2 days, it reduces significantly by May with only 3.9 days, bringing less rainfall interference for outdoor activities.
Summer weather in Chula Vista
The Summer months of June to August present the highest temperatures of the year. The temperature peaks at 79.2°F (26.2°C), while the lowest observed is 59.4°F (15.2°C). This period also sees the least amount of rainfall, with June receiving as low as 0.08" (2mm). The Summer period also experiences the longest daylight hours, amounting up to 14.1 hours, providing an extended duration for outdoor exploration.
Autumn weather in Chula Vista
Autumn in Chula Vista, which spans from September to November, sees a gradual dip in temperatures. Starting at 61.5°F (16.4°C) at its lowest in September and arriving at 56.8°F (13.8°C) in November. On the upper end, temperatures shoal from 78.3°F (25.7°C) to 69.8°F (21°C) during the same period. Rainfall increases slightly during this period, with November receiving the maximum rainfall of 0.59" (15mm) during these months.
Winter weather in Chula Vista
Winter in Chula Vista is comfortably cool, with temperatures ranging from 51.4°F (10.8°C) to 51.8°F (11°C) at the low end and 63.7°F (17.6°C) to 65.1°F (18.4°C) at the high end. December and January witness the highest rainfall of the year, accumulating 1.06" (27mm) and 1.1" (28mm), respectively. Despite being the coolest months, the lower rainfall days in December and excessive daylight hours provide ample scope for outdoor activities.
Weather in January
Seasonal conditions cluster in January with a mixture of clear skies and rainfall. Around town, Chula Vista exemplifies mild winter weather typical of Southern California. Despite the lower temperatures, outdoor activities often persevere, only occasionally disrupted by the month's highest rainfall of 1.06" (27mm). Weather in January »
Weather in February
Variability in weather continues into February as the climate transitions towards softer spring conditions. Averages show an increase in rainfall with a high of 1.1" (28mm), yet Chula Vista remains predominantly dry. The city experiences slightly warmer conditions as compared to January, however, the winds grow stronger with a month's maximum speed of 6.5mph (10.5km/h). Weather in February »
Weather in March
March takes on a blend of late winter and early spring conditions making Chula Vista's weather dynamic and unpredictable. The city highlights elevated humidity levels reaching 67%, adjacent to the previous months. The days grow longer, slowly leaning towards the highly anticipated summer weather. Weather in March »
Weather in April
April sees the full arrival of spring with warmer temperatures and increased daylight. Occupying a middle ground position, the month displays a fair understanding of what to expect in Chula Vista. Though dryness prevails, there's a modest decrease in rainfall to 0.47" (12mm). Weather in April »
Weather in May
As Chula Vista steps into May, unambiguous springtime traits flourish. The shift from spring to summer becomes evident with a significant boost in temperatures. Rainy days become far and few between, further encouraging residents to relish in outdoor activities. Weather in May »
Weather in June
June brings typical summer conditions drawing people outdoors to revel in warm days and cool nights. Besides minimal fluctuations in temperature and nearly insignificant rainfall, cloudiness decreases to 13%. An increase in daylight hours to 14.3 hr denotes the beginning of summer, offering plenty of time for outdoor activities. Weather in June »
Weather in July
July standouts with the year’s highest average temperature and sea temperature. Chula Vista clocks in the highest quantity of sunshine this month and locals find great pleasure in the city's fantastic summer weather. Despite the heat, a soothing breeze provides relief, and outdoor activities abound, both on water and land. Weather in July »
Weather in August
In August, the exciting wave of summer continues to dominate Chula Vista's climate. The town luxuriates in a wonderful balance of warm temperatures and prolonged sunshine hours. There's a moderated dip in temperatures from July to 79.2°F (26.2°C), coupled with decreasing cloud coverage to 8%. Weather in August »
Weather in September
September ushers Chula Vista into the autumn season with gradually declining temperatures. Compared to the city's scorching summer months, September's milder weather offers pleasant outdoor possibilities. Rainfall is relatively low at 0.28" (7mm), and skies remain largely clear. Weather in September »
Weather in October
October's weather symbolizes the heart of autumn in Chula Vista. As temperatures further fall, the average sea temperature refines to a comfortable 65.1°F (18.4°C). The mild climate receives an uptick in sunshine days to 26.7. A vivid palette of falling leaves and crunching footsteps around the town adds to the city’s charm. Weather in October »
Weather in November
A sense of calm blankets Chula Vista in November as the city progresses deeper into the fall. The dip in both high and low temperatures becomes evident, though the magnificence of the city’s climate remains intact. It offers a moderate 69.8°F (21°C) with a lesser number of sunshine hours at 7.1 hr. Weather in November »
Weather in December
As winter officially sets in, December shows a marked difference in Chula Vista's weather. Compared to the sunny summer months, the city experiences a significant drop in temperature to a moderate 63.7°F (17.6°C). Covered by slightly denser clouds, the city experiences a noticeable decline in daylight hours to 10 hr. Weather in December »
[Resources]Frequently asked questions
How many days does it rain in Chula Vista?
In Chula Vista, during the entire year, the rain falls for 51 days and collects up to 5.63" (143mm) of precipitation.
When is the lowest UV index in Chula Vista?
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Chula Vista.
What is the rainiest month in Chula Vista?
February is the month with the most rainfall. Rain falls for 5.6 days and accumulates 1.1" (28mm) of precipitation.
When is the ocean coldest in Chula Vista?
February is the month with the coldest seawater, with an average ocean temperature of 58.6°F (14.8°C).
When is Daylight Saving Time (DST) in Chula Vista?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Chula Vista, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
What is the most humid month in Chula Vista?
June is the most humid month, with an average relative humidity of 71%.
What is the driest month in Chula Vista?
The month with the least rainfall is June, when the rain falls for 1.7 days and typically collects 0.08" (2mm) of precipitation.
When are the longest days in Chula Vista?
With an average of 14h and 18min of daylight, June has the longest days of the year.
What are the months with the highest UV index in Chula Vista?
June through September, with an average maximum UV index of 6, are months with the highest UV index.
What month has the most sunshine in Chula Vista?
The month with the most sunshine in Chula Vista, California, is July, with an average of 12h of sunshine.
What time of the year is the hottest in Chula Vista?
August is the warmest month in Chula Vista, with the temperature often reaching an average high of 79.2°F (26.2°C) and an average low of 66.7°F (19.3°C).
What is the month with the warmest ocean in Chula Vista?
With an average ocean temperature of 68°F (20°C), August is the month with the warmest seawater in Chula Vista, California.
What is the least humid month in Chula Vista?
November is the least humid month in Chula Vista, with an average relative humidity of 58%.
What month is the coldest in Chula Vista?
Chula Vista experiences its lowest temperatures in December, with an average peak of 63.7°F (17.6°C) and a low of 51.4°F (10.8°C).
What is the month with the shortest days in Chula Vista?
The month with the shortest days in Chula Vista is December, with an average of 10h and 0min of daylight.
What is the month with the least sunshine in Chula Vista?
December has the least sunshine of the year in Chula Vista, California, with an average of 6.7h of sunshine.
Average temperature
Chula Vista, CA
The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (63.7°F).
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is February (51.1°F).
Average pressure
Chula Vista, CA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.88"Hg - Average pressure in October:
29.93"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed
Chula Vista, CA
- Average wind speed in January:
5.2mph - Average wind speed in February:
5.8mph - Average wind speed in March:
5.8mph - Average wind speed in April:
6.2mph - Average wind speed in May:
6.1mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.2mph - Average wind speed in October:
5mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.3mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is October (5mph).
Average humidity
Chula Vista, CA
The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (58%).
Average rainfall
Chula Vista, CA
- Average rainfall in January:
0.55" - Average rainfall in February:
1.1" - Average rainfall in March:
0.55" - Average rainfall in April:
0.47" - Average rainfall in May:
0.31" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.28" - Average rainfall in August:
0.24" - Average rainfall in September:
0.28" - Average rainfall in October:
0.12" - Average rainfall in November:
0.59" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is February (1.1").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days
Chula Vista, CA
- Average rainfall days in January:
4.7 days - Average rainfall days in February:
5.6 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
6 days - Average rainfall days in May:
3.9 days - Average rainfall days in June:
1.7 days
- Average rainfall days in July:
4.1 days - Average rainfall days in August:
2.6 days - Average rainfall days in September:
3.5 days - Average rainfall days in October:
2.6 days - Average rainfall days in November:
3.8 days - Average rainfall days in December:
5.3 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.7 days).
Average sea temperature
Chula Vista, CA
The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (58.7°F).
Average daylight / Average sunshine
Chula Vista, CA
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
6h and 5min - Average sunshine in February:
6h and 5min - Average sunshine in March:
8h and 4min - Average sunshine in April:
10h and 5min - Average sunshine in May:
10h and 5min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 5min - Average sunshine in September:
10h and 2min - Average sunshine in October:
8h and 5min - Average sunshine in November:
7h and 1min - Average sunshine in December:
6h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days
Chula Vista, CA
- Average sunshine days in January:
25.1 days - Average sunshine days in February:
21.1 days - Average sunshine days in March:
23.1 days - Average sunshine days in April:
23.1 days - Average sunshine days in May:
24.4 days - Average sunshine days in June:
27.2 days
- Average sunshine days in July:
23.9 days - Average sunshine days in August:
25.6 days - Average sunshine days in September:
24.8 days - Average sunshine days in October:
26.7 days - Average sunshine days in November:
25.3 days - Average sunshine days in December:
24.3 days
The month with the most sunshine days is June (27.2 days).
The month with the least sunshine days is February (21.1 days).
Average UV index
Chula Vista, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover
Chula Vista, CA
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility
Chula Vista, CA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Chula Vista, California, USA
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