Jacksonville Weather in September

September in Jacksonville averages 29°C (84°F) during the day and 18°C (64°F) at night. Quite a bit of rainfall is typical this month, with around 170 mm (6.7 in) on average. An umbrella is a good idea.

Rainfall in Jacksonville in September

Historically, approximately 13 days this month are expected to have rain, averaging 170 mm (6.7 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Jacksonville in September

Temperatures in Jacksonville in September top out at 29°C (84°F) and drop to 18°C (64°F) overnight. This kind of day-to-night contrast is typical for this time of year. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

If your ideal day consists of dry skies and pleasant temperatures, April typically offers the best circumstances for Jacksonville.

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• January
• February
• March
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• May
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• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Jacksonville's climate page.

Jacksonville Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 29°C (84°F)  

Chance of Rain 42%  

Precipitation 170 mm (6.7 in)  

Rainy days 13 days  

What to Wear in Jacksonville in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!

What To Do in Jacksonville in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Jacksonville's climate page.

More climate data for Jacksonville

Temperature Rainfall

See the full Jacksonville climate overview or explore weather in the United States of America.