Santa Ana weather by month

Warmest month

May

34°C average high

Coolest month

January

24°C average low

Wettest month

September

166 mm of rain

Driest month

February

13 mm of rain

Average temperature and rainfall in Santa Ana by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January30°C24°C19°C / 32°C
22 mm
75%12 km/h
February31°C24°C22°C / 33°C
13 mm
72%12 km/h
March32°C25°C22°C / 35°C
22 mm
69%12 km/h
April34°C27°C24°C / 36°C
22 mm
67%12 km/h
May34°C27°C24°C / 37°C
74 mm
72%11 km/h
June33°C27°C25°C / 39°C
108 mm
80%9 km/h
July32°C26°C22°C / 35°C
149 mm
84%11 km/h
August31°C26°C23°C / 35°C
164 mm
86%12 km/h
September31°C26°C23°C / 34°C
166 mm
86%10 km/h
October31°C25°C23°C / 34°C
126 mm
83%10 km/h
November31°C25°C24°C / 34°C
50 mm
80%10 km/h
December30°C25°C22°C / 33°C
74 mm
79%11 km/h

Frost and snow-likely months in Santa Ana

No month in Santa Ana averages a night of 2°C or below. The coldest month is January with an average low of 24°C and a record low of 19°C, so frost is rare and snow is very unlikely.

These records carry temperature and precipitation, not snowfall totals.

Best time to visit Santa Ana

The most comfortable time to visit Santa Ana is generally January to March, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around September, totalling about 991 mm a year.

Travellers who prefer heat should aim for May, when highs average 34°C. September is the month to avoid if rain would spoil your plans — it averages 166 mm, roughly 12× the rainfall of the driest month (February).

Santa Ana climate: your questions

Will it snow in Santa Ana this year?

No: the coldest month in Santa Ana is January with an average low of 24°C and a record low of 19°C, so snow is very unlikely. What is falling now: Santa Ana weather today.

Which months are best for visiting Santa Ana?

January to March are the most comfortable months in Santa Ana, with highs near 31°C. May is the warmest month, averaging 34°C by day; September is the wettest, with 166 mm; and January is the coolest, with lows near 24°C. What it is doing today: Santa Ana weather today.

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Santa Ana forecast for what is happening now.

Nearest cities: Monthly climate