La Jolla Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit La Jolla.
Climate overview of La Jolla
With consistently stable weather, La Jolla, United States of America, sees little seasonal temperature change. Daytime highs average 22°C (72°F), ranging from 25°C (77°F) in September to 18°C (64°F) in December.
The city has an arid climate, receiving only 245 mm (9.6 in) of rainfall per year. Sunshine peaks in July, when the city sees around 10.1 hours of sunshine per day.
La Jolla Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in La Jolla - and find the best time to visit.
Monthly Temperature in La Jolla
The climate in La Jolla remains fairly constant, offering pleasant temperatures throughout the year. On average, daytime temperatures range from a comfortable 25°C (77°F) in September to a pleasant 18°C (64°F) in December.
Nighttime temperatures range from 19°C (66°F) in September to 8°C (46°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in La Jolla
La Jolla experiences desert-like conditions in terms of precipitation with almost no rainfall, generally receiving 245 mm (9.6 in) annually. The seasons in La Jolla bring significant changes in precipitation. The wettest month, December, receives moderate rainfall, with an average of 64 mm (2.5 in) of precipitation. This rainfall is distributed across 7 rainy days.
In contrast, the driest month, June, experiences much less rainfall, totaling 0.9 mm (0.04 in) over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our La Jolla 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 La Jolla
La Jolla enjoys sunny spells year-round. July sees up to 10.1 hours of daily sunshine, perfect for a sunny trip. February, the least sunny month, still offers a generous 7.7 hours of sun despite this cloudier time of the year.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in La Jolla by Month
The relative humidity is high throughout the year in La Jolla.
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 La Jolla
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: 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: A distinct dry season from February to November
Frequently asked questions about the climate in La Jolla
What is the best time to visit La Jolla?
March, April, May, June, July, August, September, October and November typically offer the most optimal weather in La Jolla. In contrast, January, February and December tend to have less optimal conditions. La Jolla has a distinct dry season from February to November.
What temperatures can I expect in La Jolla?
Daytime highs range from 18°C (64°F) in December to 25°C (77°F) in September. Nighttime lows range from 8°C (46°F) to 19°C (66°F). Temperatures stay relatively stable year-round.
How much rain does La Jolla get?
Annual rainfall is around 245 mm (9.6 in). December is the wettest month with 64 mm (2.5 in), while June is the driest with 0.9 mm (0.04 in).
How sunny is La Jolla?
La Jolla 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, La Jolla enjoys abundant sunshine.
La Jolla 3-Day Forecast
La Jolla on the map
La Jolla is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
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29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 
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