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Jacksonville Weather by Month
Average temperatures, rainfall and humidity for Jacksonville, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Jacksonville month looks like before you travel — then check the live Jacksonville forecast for the days ahead.
Warmest month
July
31°C average high
Coolest month
January
4°C average low
Wettest month
September
125 mm of rain
Driest month
January
49 mm of rain
Average temperature and rainfall in Jacksonville 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 | 14°C | 4°C | -11°C / 26°C | 49 mm | 72% | 12 km/h |
| February | 16°C | 6°C | -10°C / 28°C | 60 mm | 73% | 13 km/h |
| March | 19°C | 9°C | -5°C / 31°C | 56 mm | 69% | 14 km/h |
| April | 23°C | 13°C | 0°C / 31°C | 56 mm | 69% | 13 km/h |
| May | 27°C | 18°C | 5°C / 36°C | 79 mm | 74% | 12 km/h |
| June | 30°C | 22°C | 12°C / 36°C | 74 mm | 77% | 11 km/h |
| July | 31°C | 24°C | 17°C / 37°C | 73 mm | 79% | 11 km/h |
| August | 30°C | 23°C | 12°C / 37°C | 114 mm | 81% | 10 km/h |
| September | 28°C | 20°C | 10°C / 35°C | 125 mm | 81% | 11 km/h |
| October | 24°C | 15°C | 3°C / 33°C | 70 mm | 78% | 11 km/h |
| November | 19°C | 9°C | -3°C / 28°C | 56 mm | 77% | 11 km/h |
| December | 16°C | 6°C | -8°C / 26°C | 60 mm | 78% | 11 km/h |
Best time to visit Jacksonville
The most comfortable time to visit Jacksonville is generally April to May and October, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around September, totalling about 874 mm a year.
Travellers who prefer heat should aim for July, when highs average 31°C. September is the month to avoid if rain would spoil your plans — it averages 125 mm, roughly 3× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Jacksonville forecast for what is happening now.