Chula Vista (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Chula Vista.
Climate overview of Chula Vista
Chula Vista, California, United States of America, has a moderate seasonal temperature range, with September reaching 26°C (79°F) and December cooling to 19°C (66°F).
Rainfall is extremely rare, with only 220 mm (8.7 in) falling across the entire year. The sunniest month is July, with 10.1 hours of sunshine per day on average.
Chula Vista Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Chula Vista - and find the best time to visit.
Monthly Temperature in Chula Vista
The climate in Chula Vista experiences moderate temperature changes, with mild shifts between seasons. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in September, the warmest time of the year, to a pleasant 19°C (66°F) during cooler months like December.
At night, you can expect temperatures ranging from 19°C (66°F) in September to around 8°C (46°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Chula Vista
Chula Vista experiences desert-like conditions in terms of precipitation with almost no rainfall, generally receiving 220 mm (8.7 in) annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives moderate rainfall, averaging 60 mm (2.4 in) of precipitation, recorded across 7 rainy days. In contrast, the driest month June brings less rainfall, with 0.2 mm (0.01 in) over 0 rainy days. For more details, please visit our Chula Vista Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Chula Vista
While the amount of sunshine in Chula Vista varies throughout the year, all seasons offer their own charm. Enjoy up to 10.1 hours of daily sun in July, and experience slightly darker atmosphere in February, with about 7.7 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Chula Vista by Month
The relative humidity is high throughout the year in Chula Vista.
The city experiences its highest humidity in July, reaching 75%. In January, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Chula Vista
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April, May, June, July, August, September, October and November
- Warmest weather: July, August, September and October
- Most sunshine: July and August
- Fewer rainy days: May, June, July, August and September
- Seasonal pattern: Very little rainfall for most of the year
Frequently asked questions about the climate in Chula Vista
What is the best time to visit Chula Vista?
January, February, March, April, May, June, July, August, September, October and November typically offer the most optimal weather in Chula Vista. In contrast, December tends to have less optimal conditions. Chula Vista has very little rainfall for most of the year.
What temperatures can I expect in Chula Vista?
Daytime highs range from 19°C (66°F) in December to 26°C (79°F) in September. Nighttime lows range from 8°C (46°F) to 19°C (66°F).
How much rain does Chula Vista get?
Annual rainfall is around 220 mm (8.7 in). December is the wettest month with 60 mm (2.4 in), while June is the driest with 0.2 mm (0.01 in).
How sunny is Chula Vista?
Chula Vista receives around 3,069 hours of sunshine per year. July is the sunniest month with 304 hours, while February is the cloudiest with just 230 hours. Overall, Chula Vista enjoys abundant sunshine.
Chula Vista 3-Day Forecast
Chula Vista (CA) 3-Day Forecast
Chula Vista on the map
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