Florida, USA
Long term weather forecast
Long term weather forecast

September weather forecast and Climate
Naples, FL

  • Average high temperature in September: 33.1°C

Warmest month (with highest average high temperature) is August (33.8°C).
Month with lowest average high temperature is January (23.7°C).

  • Average low temperature in September: 23.1°C

Month with highest average low temperature is August (23.4°C).
Coldest month (with lowest average low temperature) is January (11.7°C).

  • Average rainfall in September: 220mm

Wettest month (with highest rainfall) is July (233.2mm).
Driest month (with lowest rainfall) is December (43.4mm).

  • Average rainfall days in September: 15 days

Month with highest number of rainy days is August (16 days).
Month with lowest number of rainy days is April (4 days).

  • Average sea temperature in September: 29°C

Best month for swimming (with highest average sea temperature) is August (30°C).
Coldest month (with lowest average sea temperature) is February (21°C).

  • Average daylight in September: 12h

Months with longest days are June and July (Average daylight: 14h).
Months with shortest days are January, February, November and December (Average daylight: 11h).

  • Average sunshine in September: 8.3h

Month with most sunshine is June (Average sunshine: 9.7h).
Month with least sunshine is January (Average sunshine: 4.8h).

  • Average UV index in September: 10

Months with highest UV index are April, May, June, July and August (UV index 11).
Months with lowest UV index are January and December (UV index 5).