Jacksonville weather
Our guide to the weather in Jacksonville during September
We've looked at the most up-to-date weather data for Jacksonville, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Jacksonville weather in September.
How hot is it in Jacksonville during September?
Expect heat in Jacksonville during September. The temperature hits about 30℃ during the day, falling away to a balmy 24℃ at night. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Jacksonville during September?
On average, there will be 9 rainy days during the month, amounting to 227.4mm in total. That's a lot of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. Due to the high temperature and humidity, you might expect lots of thunderstorms, however they're actually fairly infrequent at this time of year. On average, September will see just 2 days that produce a storm.
Is it windy in Jacksonville during September?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. The high humidity and warm temperature will make the breeze feel warm, so any cooling effect will be limted.
Jacksonville Blog posts
From the UK's most popular travel bloggers
9 best things to do in Jacksonville, Florida
1st March 2021 by Hand Luggage Only
One of the largest cities in Florida, Jacksonville has a lot going for it! From an unspoilt coastline, gorgeous beaches and galleries galore, there’s a heap of the best things to do in Jacksonville dotted all across the city. Now, although Jacksonville may not get the same attention as some of its Floridian city siblings, like; Fort Lauderdale, Miami or Clearwater - it’s still an epic spot to visit whilst exploring Northern Florida. ...
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