SeasonMapNaples, Florida (Naples) weather in September
United States
September in Naples, Florida: sweltering, soaked, with clean air — fine if you can take 13 rainy days.
#10 of 12 months in Naples, Florida · #846 of 1383 destinations to visit in September · comfort 75/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Naples, Florida in September
Other months in Naples, Florida
Naples's forum puts mid-March around 80°F by day, 60°F at night, mostly sunny with very little rain. Regulars flag March as the area's windiest month, with a north-tinged breeze that can churn up the beach some days, and note spring break plus Easter both land in March, so it's one of the year's busiest stretches.
Add your own note from Naples, Florida's card on the map.
Naples, Florida climate normals — September
| Daytime high | 33°C / 91°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Feels like (high) | 38°C / 100°F | |
| Sea temperature | 31°C / 87°F | ♨️ bath-warm |
| Rainfall | 193 mm / 7.6 in | ⛈ soaked |
| Rainy days | 13 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 12.3 h | |
| Wind | 17 km/h / 10 mph | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Naples, Florida in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdstravelers describe it as peak season, Summer break in United States
Sourced from traveler notes: “…mplete absence of crowds and traffic that define the winter high season, calling it a genuine trade-off worth making for visitors w…” — Tripadvisor community
Peak crowdsBusyShoulder seasonQuiet
Best months for Naples, Florida's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherNaples, Florida's weather peaks February–April.
September coincides with Hurricane season.
Best weatherFair weatherToughest weather
What's on in Naples, Florida in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Sea turtle nesting
1 May – 31 OctLoggerheads nest along the Naples and Vanderbilt beaches from May, the first hatchlings come out in July, and the city runs lights-out rules on the beachfront until the last nest is gone.
- Hazard
Hurricane season
1 Jun – 30 NovThe south-west Florida shelf turns storm surge into something the Atlantic coast rarely sees, and Ian put the pier and Fifth Avenue under water in 2022. September and October are the months. Source ↗
- Hazard
Red tide risk
1 Sep – 28 Feb · usuallyAlgae & red tideBlooms of Karenia brevis drift onto this coast most often between autumn and late winter. In a bad year the beaches carry dead fish and the airborne toxin makes an hour outside unpleasant; check the state's daily map first. Source ↗
Nearby, and something's on
Within 300 km of Naples, Florida — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Naples, Florida?
Naples, Florida in September — FAQ
- Is September a good time to visit Naples, Florida?
- September in Naples, Florida: sweltering, soaked, with clean air — fine if you can take 13 rainy days. It ranks #10 of 12 months for Naples, Florida on SeasonMap's comfort score (75/100).
- What is the weather like in Naples, Florida in September?
- In September, Naples, Florida averages a daily high of 32.5°C and a low of 24.9°C, with about 193.1 mm of rain over roughly 12.8 rainy days.
- What is the air quality in Naples, Florida in September?
- Naples, Florida has a mean US Air Quality Index of about 30 in September.
Other months in Naples, Florida
Compare Naples, Florida in September
Warmer or cooler than Naples, Florida in September
Similar destinations in North America — September
Within 300 km: Sarasota's Sea turtle nesting on 1 May – 31 Oct, and Miami's Sea turtle nesting on 1 Mar – 31 Oct.