Climate and monthly weather forecastRancho San Diego, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another refreshing winter month in Rancho San Diego, California, with an average temperature varying between 65.8°F (18.8°C) and 48.4°F (9.1°C). Rancho San Diego marks the onset of January with an average high-temperature of a still enjoyable 65.8°F (18.8°C), subtly divergent from December's 63.7°F (17.6°C). Weather in January »Weather in February
The last month of the winter, February, is another comfortable month in Rancho San Diego, California, with an average temperature ranging between max 64.9°F (18.3°C) and min 48°F (8.9°C). Rancho San Diego's transition from January to February introduces an average high-temperature of a still enjoyable 64.9°F (18.3°C), marking an insignificant variation from the 65.8°F (18.8°C). Weather in February »Weather in March
The first month of the spring, March, is also an enjoyable month in Rancho San Diego, California, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 67.3°F (19.6°C). The start of March sees the average high-temperature at a still refreshing 67.3°F (19.6°C), showing little difference from February's 64.9°F (18.3°C). Weather in March »Weather in April
April is an agreeable spring month in Rancho San Diego, California, with an average temperature fluctuating between 50.7°F (10.4°C) and 70°F (21.1°C). Rancho San Diego's shift from March to April is accompanied by an average high-temperature of a pleasant 70°F (21.1°C), a slight deviation from 67.3°F (19.6°C). Weather in April »Weather in May
The last month of the spring, May, is also an agreeable month in Rancho San Diego, California, with an average temperature varying between 54°F (12.2°C) and 71.6°F (22°C). The ushering in of May brings an average high-temperature of a still agreeable 71.6°F (22°C), closely mirroring the 70°F (21.1°C) of April. Weather in May »Weather in June
June, the first month of the summer in Rancho San Diego, is a moderately hot month, with an average temperature ranging between min 57.9°F (14.4°C) and max 77°F (25°C). With the onset of June, Rancho San Diego observes a minor temperature ascent, with the average high-temperature adjusting from May's pleasant 71.6°F (22°C) to a warm 77°F (25°C). Weather in June »Weather in July
July, like June, in Rancho San Diego, California, is a moderately hot summer month, with an average temperature varying between 63.9°F (17.7°C) and 81.7°F (27.6°C). The onset of July brings with it an average high-temperature of a still moderately hot 81.7°F (27.6°C), showing a negligible variation from the month before. Weather in July »Weather in August
August, the last month of the summer in Rancho San Diego, is another warm month, with an average temperature ranging between min 65.8°F (18.8°C) and max 83.8°F (28.8°C). In Rancho San Diego, California, August is the month with the highest recorded average temperatures, measuring a high of 83.8°F (28.8°C) and a low of 65.8°F (18.8°C). The heat index for August is computed to be a tropical 87.8°F (31°C). Weather in August »Weather in September
September, the first month of the autumn in Rancho San Diego, is still a warm month, with an average temperature fluctuating between 63.9°F (17.7°C) and 82.6°F (28.1°C). Rancho San Diego observes an average high-temperature of a still warm 82.6°F (28.1°C) in September, barely different from 83.8°F (28.8°C) in August. Weather in September »Weather in October
October, the same as September, is another warm autumn month in Rancho San Diego, California, with an average temperature ranging between max 77.2°F (25.1°C) and min 59°F (15°C). In Rancho San Diego, entering October brings a subtle temperature decrement, reducing from September's warm 82.6°F (28.1°C) to a still moderately hot 77.2°F (25.1°C). Weather in October »Weather in November
November, the last month of the autumn in Rancho San Diego, is another pleasant month, with an average temperature varying between 71.1°F (21.7°C) and 53.2°F (11.8°C). November ushers in a minor alteration in Rancho San Diego's climate, with the average high-temperature moving from October's warm 77.2°F (25.1°C) to an agreeable 71.1°F (21.7°C). Weather in November »Weather in December
December, the first month of the winter in Rancho San Diego, is still a refreshing month, with an average temperature fluctuating between 47.8°F (8.8°C) and 63.7°F (17.6°C). In Rancho San Diego, the lowest average temperatures are observed in December, with a high of 63.7°F (17.6°C) and a low of 47.8°F (8.8°C). Weather in December »Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In Rancho San Diego, during the entire year, the rain falls for 56.1 days and collects up to 8.27" (210mm) of precipitation.
The months with the lowest UV index in Rancho San Diego, California, are January, February, November and December, with an average maximum UV index of 4.
February is the month with the most rainfall in Rancho San Diego, California. Rain falls for 5.9 days and accumulates 1.81" (46mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rancho San Diego, 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.
May is the most humid month in Rancho San Diego, with an average relative humidity of 66%.
The month with the least rainfall is June, when the rain falls for 1.4 days and typically collects 0.04" (1mm) of precipitation.
With an average of 14h and 18min of daylight, June has the longest days of the year in Rancho San Diego, California.
The months with the highest UV index in Rancho San Diego are June through September, with an average maximum UV index of 6.
With an average of 12.1h of sunshine, July has the most sunshine of the year.
In Rancho San Diego, August is the month with the highest recorded average temperatures, measuring a high of 83.8°F (28.8°C) and a low of 65.8°F (18.8°C).
November is the least humid month in Rancho San Diego, with an average relative humidity of 53%.
In Rancho San Diego, the average lowest temperatures are observed in December, with a high of 63.7°F (17.6°C) and a low of 47.8°F (8.8°C).
The month with the shortest days in Rancho San Diego, California, is December, with an average of 10h and 0min of daylight.
With an average of 6.7h of sunshine, December has the least sunshine of the year in Rancho San Diego, California.
Average temperature
Rancho San Diego, CA
The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (63.7°F).
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (47.8°F).
Average pressure
Rancho San Diego, CA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.87"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 (29.87"Hg).
Average wind speed
Rancho San Diego, CA
- Average wind speed in January:
4.8mph - Average wind speed in February:
5mph - Average wind speed in March:
5.1mph - Average wind speed in April:
5.5mph - Average wind speed in May:
5.4mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is October (4.3mph).
Average humidity
Rancho San Diego, CA
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).
Average rainfall
Rancho San Diego, CA
- Average rainfall in January:
1.1" - Average rainfall in February:
1.81" - Average rainfall in March:
0.79" - Average rainfall in April:
0.63" - Average rainfall in May:
0.39" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.31" - Average rainfall in September:
0.31" - Average rainfall in October:
0.2" - Average rainfall in November:
0.87" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
Rancho San Diego, CA
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
5.9 days - Average rainfall days in March:
7.7 days - Average rainfall days in April:
6.7 days - Average rainfall days in May:
4.8 days - Average rainfall days in June:
1.4 days
- Average rainfall days in July:
4.9 days - Average rainfall days in August:
3.3 days - Average rainfall days in September:
4.1 days - Average rainfall days in October:
2.7 days - Average rainfall days in November:
3.5 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.4 days).
Average daylight / Average sunshine
Rancho San Diego, CA
- Average daylight in January:
10h and 18min - 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 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - 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 54min - Average sunshine in February:
6h and 48min - Average sunshine in March:
8h and 36min - Average sunshine in April:
10h and 54min - Average sunshine in May:
11h and 6min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 24min - Average sunshine in October:
9h and 6min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days
Rancho San Diego, CA
- Average sunshine days in January:
25.4 days - Average sunshine days in February:
21.9 days - Average sunshine days in March:
22.9 days - Average sunshine days in April:
23.2 days - Average sunshine days in May:
24.8 days - Average sunshine days in June:
27.7 days
- Average sunshine days in July:
22.5 days - Average sunshine days in August:
23.9 days - Average sunshine days in September:
24.1 days - Average sunshine days in October:
26.7 days - Average sunshine days in November:
25.5 days - Average sunshine days in December:
24.7 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.9 days).
Average UV index
Rancho San Diego, 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, November and December (UV index 4).
Average cloud cover
Rancho San Diego, 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 7).
Average visibility
Rancho San Diego, 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).
