- WinterDec–Feb47°68°
- December46°68°
- January47°68°
- February48°67°
- SpringMar–May54°69°
- March51°68°
- April54°69°
- May58°70°
- SummerJun–Aug64°75°
- June61°72°
- July65°76°
- August66°78°
- AutumnSep–Nov58°76°
- September64°78°
- October58°76°
- November51°72°
Chula Vista, CA Weather by Month and Climate Averages
Chula Vista, CA gets 9.2 in of precipitation a year over about 31 rainy days. August is the warmest month (average high 78°F) and December the coldest (average low 46°F).
Chula Vista climate at a glance
Semi-arid climate
Chula Vista, CA has warm summers and mild winters. Daytime highs range from about 67°F in February to 78°F in September. February is usually the wettest month. The most comfortable time to visit is typically January and March to December, when daytime highs sit near 72°F.
How much rain does Chula Vista get?
Chula Vista gets 9.2 in of precipitation in an average year, spread over about 31 days with measurable rain. That is fewer rainy days than 92% of the US.
February is the wettest month, with 2.3 in. August is the driest, with 0.0 in. February has the most rainy days, about 7.
The longest dry spell in the last five years lasted 160 days, to November 1, 2024.
See where Chula Vista ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in California.
Chula Vista weather by month
Chula Vista weather in January
In January, Chula Vista averages a high of 68°F and a low of 47°F. It gets 1.8 in of precipitation over about 5 rainy days. The sun is out about 56% of daylight hours. The January record high is 90°F (2003) and the record low is 29°F (1971). January is one of the most comfortable months to visit.
Chula Vista weather in February
In February, Chula Vista averages a high of 67°F and a low of 48°F. It gets 2.3 in of precipitation over about 7 rainy days. The sun is out about 60% of daylight hours. The February record high is 93°F (2022) and the record low is 29°F (1990).
Chula Vista weather in March
In March, Chula Vista averages a high of 68°F and a low of 51°F. It gets 1.4 in of precipitation over about 5 rainy days. The sun is out about 49% of daylight hours. The March record high is 95°F (1988) and the record low is 32°F (1971). March is one of the most comfortable months to visit.
Chula Vista weather in April
In April, Chula Vista averages a high of 69°F and a low of 54°F. It gets 0.7 in of precipitation over about 3 rainy days. The sun is out about 56% of daylight hours. The April record high is 102°F (1989) and the record low is 37°F (2003). April is one of the most comfortable months to visit.
Chula Vista weather in May
In May, Chula Vista averages a high of 70°F and a low of 58°F. It gets 0.3 in of precipitation over about 1 rainy days. The sun is out about 53% of daylight hours. The May record high is 98°F (2014) and the record low is 43°F (2002). May is one of the most comfortable months to visit.
Chula Vista weather in June
In June, Chula Vista averages a high of 72°F and a low of 61°F. It gets 0.1 in of precipitation over about 0 rainy days. The sun is out about 59% of daylight hours. The June record high is 97°F (2006) and the record low is 43°F (1984). June is one of the most comfortable months to visit.
Chula Vista weather in July
In July, Chula Vista averages a high of 76°F and a low of 65°F. It gets 0.1 in of precipitation over about 0 rainy days. The sun is out about 66% of daylight hours. The July record high is 100°F (2006) and the record low is 53°F (1984). July is one of the most comfortable months to visit.
Chula Vista weather in August
In August, Chula Vista averages a high of 78°F and a low of 66°F. It gets 0.0 in of precipitation over about 0 rainy days. The sun is out about 69% of daylight hours. The August record high is 96°F (1991) and the record low is 55°F (1978). August is one of the most comfortable months to visit.
Chula Vista weather in September
In September, Chula Vista averages a high of 78°F and a low of 64°F. It gets 0.1 in of precipitation over about 1 rainy days. The sun is out about 67% of daylight hours. The September record high is 108°F (1988) and the record low is 43°F (1999). September is one of the most comfortable months to visit.
Chula Vista weather in October
In October, Chula Vista averages a high of 76°F and a low of 58°F. It gets 0.4 in of precipitation over about 1 rainy days. The sun is out about 66% of daylight hours. The October record high is 106°F (1987) and the record low is 36°F (1971). October is one of the most comfortable months to visit.
Chula Vista weather in November
In November, Chula Vista averages a high of 72°F and a low of 51°F. It gets 0.6 in of precipitation over about 3 rainy days. The sun is out about 67% of daylight hours. The November record high is 98°F (2016) and the record low is 35°F (1986). November is one of the most comfortable months to visit.
Chula Vista weather in December
In December, Chula Vista averages a high of 68°F and a low of 46°F. It gets 1.6 in of precipitation over about 5 rainy days. The sun is out about 54% of daylight hours. The December record high is 86°F (2016) and the record low is 28°F (1987). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in Chula Vista
August is the sunniest month in Chula Vista, with sunshine about 69% of daylight hours. March is the cloudiest, at 49%. Over the year the sun shines about 60% of daylight hours. Chula Vista is sunnier than 87% of the US.
Humidity peaks in March at 69% and is lowest in November at 50%.
Chula Vista has about 5 days a year above 90°F. Chula Vista is cooler than 91% of the US.
See where Chula Vista ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.
Chula Vista weather records
The hottest temperature on record at the Chula Vista station is 108°F, on September 4, 1988. The coldest is 28°F, on December 25, 1987.
The wettest day on record brought 2.4 in of rain, on February 15, 1986.
25 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.6°F per decade since 1970.
The best time to visit Chula Vista
The most comfortable time to visit is typically January and March to December, when daytime highs sit near 72°F.
Winter (December–February) is mild, with average highs around 68°F and lows near 47°F.
Spring (March–May) is warm, with average highs around 69°F and lows near 54°F.
Summer (June–August) is warm, with average highs around 75°F and lows near 64°F.
Autumn (September–November) is warm, with average highs around 76°F and lows near 58°F.
Monthly climate
| Month | Precip | Rain days | Humidity | Sunshine | Sea temp | Record high | Record low |
|---|---|---|---|---|---|---|---|
| January | 1.8 in | 5 | 61% | 56% | 59° | 90° | 29° |
| February | 2.3 in | 7 | 58% | 60% | 58° | 93° | 29° |
| March | 1.4 in | 5 | 69% | 49% | 59° | 95° | 32° |
| April | 0.67 in | 3 | 67% | 56% | 60° | 102° | 37° |
| May | 0.27 in | 1 | 68% | 53% | 63° | 98° | 43° |
| June | 0.05 in | 0 | 66% | 59% | 65° | 97° | 43° |
| July | 0.06 in | 0 | 67% | 66% | 68° | 100° | 53° |
| August | 0.01 in | 0 | 65% | 69% | 69° | 96° | 55° |
| September | 0.09 in | 1 | 64% | 67% | 69° | 108° | 43° |
| October | 0.36 in | 1 | 59% | 66% | 66° | 106° | 36° |
| November | 0.57 in | 3 | 50% | 67% | 62° | 98° | 35° |
| December | 1.6 in | 5 | 57% | 54% | 60° | 86° | 28° |
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Chula Vista climate questions
How much rain does Chula Vista get?
Chula Vista gets 9.2 in of precipitation in an average year, over about 31 rainy days.
What is the wettest month in Chula Vista?
February is the wettest month in Chula Vista, with 2.3 in. August is the driest, with 0.0 in.
How many rainy days does Chula Vista have a year?
Chula Vista has about 31 days with measurable rain in an average year. February has the most, about 7.
What is the hottest month in Chula Vista?
August is the warmest month in Chula Vista, with an average high of 78°F.
What is the coldest month in Chula Vista?
December is the coldest month in Chula Vista, with an average low of 46°F.
What is the record high temperature in Chula Vista?
The record high at the Chula Vista station is 108°F, set on September 4, 1988. The record low is 28°F, on December 25, 1987.
What is the sunniest month in Chula Vista?
August is the sunniest month in Chula Vista, with sunshine about 69% of daylight hours. March is the cloudiest.
What is the best time to visit Chula Vista?
The most comfortable time to visit is typically January and March to December, when daytime highs sit near 72°F.
Source: NOAA GHCN-Daily station CHULA VISTA (0 km away).
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Climate for places near Chula Vista, CA
Normals from NOAA GHCN-Daily station CHULA VISTA.