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Berkeley Weather by Month
Average temperatures, rainfall and humidity for Berkeley, United States, month by month, built from OpenWeather's historical records. Use it to see what a typical Berkeley month looks like before you travel — then check the live Berkeley forecast for the days ahead.
Warmest month
September
26°C average high
Coolest month
December
7°C average low
Wettest month
December
103 mm of rain
Driest month
June
19 mm of rain
Average temperature and rainfall in Berkeley 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 | 15°C | 8°C | 0°C / 26°C | 80 mm | 75% | 10 km/h |
| February | 17°C | 8°C | -1°C / 26°C | 71 mm | 73% | 12 km/h |
| March | 18°C | 9°C | 2°C / 31°C | 67 mm | 73% | 13 km/h |
| April | 20°C | 10°C | 4°C / 31°C | 45 mm | 70% | 15 km/h |
| May | 21°C | 11°C | 6°C / 35°C | 28 mm | 73% | 15 km/h |
| June | 24°C | 13°C | 9°C / 37°C | 19 mm | 73% | 14 km/h |
| July | 25°C | 14°C | 10°C / 36°C | 30 mm | 75% | 13 km/h |
| August | 25°C | 15°C | 11°C / 39°C | 23 mm | 76% | 12 km/h |
| September | 26°C | 14°C | 10°C / 42°C | 34 mm | 73% | 11 km/h |
| October | 23°C | 13°C | 4°C / 38°C | 24 mm | 69% | 9 km/h |
| November | 18°C | 9°C | 1°C / 28°C | 50 mm | 72% | 10 km/h |
| December | 15°C | 7°C | -2°C / 23°C | 103 mm | 76% | 10 km/h |
Best time to visit Berkeley
The most comfortable time to visit Berkeley is generally June to July and October, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around December, totalling about 572 mm a year.
Travellers who prefer heat should aim for September, when highs average 26°C. December is the month to avoid if rain would spoil your plans — it averages 103 mm, roughly 5× the rainfall of June.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Berkeley forecast for what is happening now.