Jacksonville in September
6.9out of 10
Possible, with caveats
Warm and comfortable: highs around 28°C. Frequent rain: about 13 rainy days.
28°CAvg high
19°CAvg low
13Rainy days (165 mm)
12:12 hDaylight
06:58Sunrise · 19:10 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Frequent rain: about 13 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.6 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 13°C | 3°C | 92 mm | 9 | – | – | 6.4 |
| February | 15°C | 4°C | 84 mm | 9 | – | – | 6.8 |
| March | 18°C | 7°C | 91 mm | 9 | – | – | 7.2 |
| April | 23°C | 12°C | 85 mm | 9 | – | – | 7.9 |
| May | 26°C | 16°C | 103 mm | 11 | – | – | 7.5 |
| June | 30°C | 21°C | 141 mm | 16 | – | – | 6.5 |
| July | 31°C | 23°C | 171 mm | 20 | – | – | 5.6 |
| August | 30°C | 22°C | 173 mm | 17 | – | – | 6.0 |
| September | 28°C | 19°C | 165 mm | 13 | – | – | 6.9 |
| October | 23°C | 13°C | 103 mm | 8 | – | – | 7.9 |
| November | 19°C | 8°C | 92 mm | 8 | – | – | 7.4 |
| December | 15°C | 5°C | 92 mm | 9 | – | – | 6.6 |
Frequently asked questions
How hot is Jacksonville in September?
Daytime highs average 28°C and nights about 19°C.
When is the best time to visit Jacksonville?
The best months are April, October, May, November.