Palm Beach County weather
Our guide to the weather in Palm Beach County during September
We've looked at the most up-to-date weather data for Palm Beach County, 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 Palm Beach County weather in September.
How hot is it in Palm Beach County during September?
Expect heat in Palm Beach County during September. The temperature hits about 31℃ 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 Palm Beach County during September?
On average, there will be 14 rainy days during the month, amounting to 189.2mm in total. That's a significant amount 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 4 days that produce a storm.
Is it windy in Palm Beach County 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.
Weather in Palm Beach County
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