Santa Ana Weather & Climate: Best Time to Visit

With minimal seasonal shifts, Santa Ana experiences a constant climate year-round. Average daytime temperatures reach a very warm 33°C (91°F) in April. In October, the coolest month of the year, temperatures drop to a very warm 30°C (86°F).

At night, temperatures range from around 21°C (70°F) in April to 18°C (64°F) in October.

Check out our detailed temperature page for more information.

Temperature ranges by month

Santa Ana has a notably wet climate with abundant precipitation, recording 1248 mm (49 in) of rainfall per year. Santa Ana can be quite wet during September, receiving approximately 267 mm (11 in) of precipitation over 28 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 3.4 mm (0.1 in) of precipitation spread across 5 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

Santa Ana experiences moderate variation in sunshine hours across the seasons. With 10.4 hours daily sunshine in January, it dips to 6.6 hours in June, offering a balanced mix of sunny and overcast days.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Santa Ana.

The city experiences its highest humidity in September, reaching 82%. In February, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year