Jacksonville, Florida Weather in September
United States · September climate averages and travel tips
In September, Jacksonville has average highs of 31°C (87°F) and lows of 22°C (71°F). September is autumn (fall) in United States. The month is wet, with about 135 mm (5.3 in) of rain spread over 16 days. Humidity averages 81%, so it feels sticky and hotter than the thermometer suggests. You get roughly 12.2 hours of daylight and a mix of sun and cloud.
Is September a good time to visit Jacksonville?
September is not the best time to visit Jacksonville (3.5/10) mainly because of the rain. The weather is much better in February to March and November to December.
Visiting Jacksonville in September
September weather
Jacksonville stays hot in September, with highs around 31°C and sticky humidity. Rain falls on many days, often in heavy showers, and afternoon storms can interrupt outdoor plans. It's a little cooler and drier than August, but October is a more comfortable bet.
You can still enjoy Jacksonville Beach or stroll around Riverside and the Cummer Museum of Art and Gardens between showers. Avoid building a whole day around exposed walks or a long beach visit; cloud and rain can make the weather feel changeable. Hurricane season is still active, too.
Events and crowds
Labor Day brings a long weekend, and the Jacksonville Jaguars' regular-season games begin in September. Game days near EverBank Stadium add traffic and lively crowds, though the exact schedule varies each year.
If you hate crowds, September can feel calmer than the peak summer holiday period, once many families have returned to school. It's generally a shoulder-season month, so you may find better accommodation deals than during major event weekends or winter visits. But don't expect a quiet city when the Jaguars are playing at home.
Make the most of your visit
Travelling with kids? Keep the Jacksonville Zoo and Gardens as a flexible option for a stormy spell, rather than relying on a full day outdoors. The heat and frequent rain can make long visits tiring, so Riverside's cafés and the Cummer's indoor galleries offer useful pauses.
For a local outing, take the St. Johns River Ferry between Mayport and Fort George Island. It's a handy way to cross the river and reach the quieter side near Kingsley Plantation. Check ferry service before setting off, especially if storms are in the forecast.
September weather at a glance
| Average high | 31°C (87°F) |
|---|---|
| Average low | 22°C (71°F) |
| Daily mean | 26°C (78°F) |
| Rainfall | 135 mm (5.3 in) |
| Rainy days (1 mm+) | 16 |
| Humidity | 81% |
| Cloud cover | 58% |
| Daylight | 12.2 hours |
| Est. sunshine | 5.6 hours/day |
| Wind | 2.1 km/h |
| vs August | 2°C cooler than August, with 46 mm less rain. |
What to pack for Jacksonville in September
- light, breathable clothing
- sunscreen and a hat
- an umbrella or rain jacket
Jacksonville weather in other months
← AugustBest time to visit JacksonvilleOctober →
Better weather in September nearby
- San Francisco, California24°C · 4 mm · Excellent
- Seattle, Washington21°C · 62 mm · Excellent
- Denver, Colorado29°C · 35 mm · Excellent
- Calgary20°C · 49 mm · Excellent
- Edmonton19°C · 41 mm · Excellent
- Toronto22°C · 62 mm · Excellent
Nearby in September
- Orlando, Florida31°C · 170 mm
- Miami, Florida30°C · 184 mm
- Key West, Florida30°C · 210 mm
- Nassau29°C · 153 mm
- Havana32°C · 118 mm
- Nashville, Tennessee29°C · 89 mm
Where else is good in September? See where to go in September.