June weather forecastChula Vista, CA

June
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. The overall atmosphere of Chula Vista during June is lively and filled with anticipation, inviting residents and visitors alike to revel under its sunny skies.Temperature
With the onset of June, the average high-temperature stands at a still agreeable 72.7°F (22.6°C), closely aligned with May's 68.5°F (20.3°C). Nighttime temperatures in June average to a refreshing 59.4°F (15.2°C).Humidity
The most humid month is June, with an average relative humidity of 71%.Rainfall
June is the month with the least rainfall. Rain falls for 1.7 days and accumulates 0.08" (2mm) of precipitation.Ocean temperature
In Chula Vista, the average seawater temperature in June is 64.8°F (18.2°C).Note: In 64.8°F (18.2°C), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 69.8°F (21°C).
Daylight
The month with the longest days is June, with an average of 14h and 18min of daylight.On the first day of June, sunrise is at 5:41 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:00 pm PDT.
Sunshine
In June, the average sunshine in Chula Vista, California, is 11.8h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In June, a regular UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Chula Vista, CA
- Average high temperature in June: 72.7°F
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).
- Average low temperature in June: 59.4°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 in June
Chula Vista, CA
- Average pressure in June: 29.88"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 in June
Chula Vista, CA
- Average wind speed in June: 5.5mph
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 in June
Chula Vista, CA
- Average humidity in June: 71%
The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (58%).
Average rainfall in June
Chula Vista, CA
- Average rainfall in June: 0.08"
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 in June
Chula Vista, CA
- Average rainfall days in June: 1.7 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 in June
Chula Vista, CA
- Average sea temperature in June: 64.7°F
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 in June /
Average sunshine in June
Chula Vista, CA
- Average daylight in June: 14h and 18min
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 June: 11h and 48min
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 in June
Chula Vista, CA
- Average sunshine days in June: 27.2 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 in June
Chula Vista, CA
- Average UV index in June: 6
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 in June
Chula Vista, CA
- Average cloud cover in June: 13
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 in June
Chula Vista, CA
- Average visibility in June: 6mi
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).





