Santa Ana (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Santa Ana.
Climate overview of Santa Ana
Santa Ana, California, United States of America, experiences moderate temperature changes through the seasons. September is the warmest month with daytime highs of 30°C (86°F), while December is the coolest at 20°C (68°F).
Rainfall is extremely rare, with only 230 mm (9.1 in) falling across the entire year. The most sunshine falls in July, with an average of 12.3 hours of daily sunshine.
Santa Ana Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Santa Ana - and find the best time to visit.
Monthly Temperature in Santa Ana
In Santa Ana, seasonal changes bring about a moderate variation in temperatures. Average maximum daytime temperatures range from a very warm 30°C (86°F) in September, the warmest time of the year, to a pleasant 20°C (68°F) during cooler months like December.
At night, you can expect temperatures ranging from 18°C (64°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 Santa Ana
Santa Ana has a dry climate with very low precipitation, averaging 230 mm (9.1 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives moderate rainfall, averaging 68 mm (2.7 in) of precipitation, recorded across 8 rainy days. In contrast, the driest month August brings less rainfall, with 0.1 mm (0 in) over 0 rainy days. For more details, please visit our Santa Ana 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 Santa Ana
Seasonal changes in sunshine hours are quite dramatic in Santa Ana. While July receives considerable daily sunshine with up to 12.3 hours, January marks the darkest time of the year, where sunshine is scarce with only 6.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Santa Ana
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, October, November and December
- Warmest weather: July, August and September
- Most sunshine: July and August
- Fewer rainy days: May, June, July, August and September
- Seasonal pattern: A distinct dry season from February to November, with very warm summers and pleasant winters
Frequently asked questions about the climate in Santa Ana
What is the best time to visit Santa Ana?
January, February, March, April, May, June, July, October, November and December typically offer the most optimal weather in Santa Ana. In contrast, August and September tend to have less optimal conditions. Santa Ana has a distinct dry season from February to November, with very warm summers and pleasant winters.
What temperatures can I expect in Santa Ana?
Daytime highs range from 20°C (68°F) in December to 30°C (86°F) in September. Nighttime lows range from 8°C (46°F) to 18°C (64°F).
How much rain does Santa Ana get?
Annual rainfall is around 230 mm (9.1 in). December is the wettest month with 68 mm (2.7 in), while August is the driest with 0.1 mm (0 in).
How sunny is Santa Ana?
Santa Ana receives around 3,279 hours of sunshine per year. July is the sunniest month with 369 hours, while January is the cloudiest with just 198 hours. Overall, Santa Ana enjoys abundant sunshine.
Santa Ana 3-Day Forecast
Santa Ana (CA) 3-Day Forecast
Santa Ana on the map
Santa Ana is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.