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Santa Maria Weather by Month
Average temperatures, rainfall and humidity for Santa Maria, United States, month by month, built from OpenWeather's historical records. Use it to see what a typical Santa Maria month looks like before you travel — then check the live Santa Maria forecast for the days ahead.
Warmest month
August
27°C average high
Coolest month
February
10°C average low
Wettest month
March
44 mm of rain
Driest month
August
1 mm of rain
Average temperature and rainfall in Santa Maria by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 19°C | 10°C | 2°C / 31°C | 40 mm | 61% | 13 km/h |
| February | 19°C | 10°C | 3°C / 32°C | 32 mm | 66% | 13 km/h |
| March | 20°C | 10°C | 4°C / 36°C | 44 mm | 72% | 13 km/h |
| April | 21°C | 11°C | 6°C / 36°C | 8 mm | 72% | 13 km/h |
| May | 21°C | 13°C | 7°C / 36°C | 9 mm | 76% | 12 km/h |
| June | 23°C | 15°C | 10°C / 41°C | 3 mm | 79% | 11 km/h |
| July | 26°C | 17°C | 12°C / 35°C | 3 mm | 80% | 11 km/h |
| August | 27°C | 17°C | 12°C / 34°C | 1 mm | 80% | 11 km/h |
| September | 26°C | 17°C | 10°C / 41°C | 3 mm | 77% | 11 km/h |
| October | 25°C | 15°C | 8°C / 39°C | 7 mm | 70% | 11 km/h |
| November | 22°C | 12°C | 3°C / 33°C | 16 mm | 63% | 12 km/h |
| December | 19°C | 10°C | 2°C / 31°C | 38 mm | 63% | 12 km/h |
Best time to visit Santa Maria
The most comfortable time to visit Santa Maria is generally June to July and October, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around March, totalling about 205 mm a year.
Travellers who prefer heat should aim for August, when highs average 27°C. March is the month to avoid if rain would spoil your plans — it averages 44 mm, roughly 37× the rainfall of August.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Santa Maria forecast for what is happening now.