Measurements:
°C
°F
Naples
94°F
NW 5 mph
Feels like: 100°F
Precip: 11%
World Resorts USA Naples Weather

7 Day Weather Forecast

09.15
tue
DAY
94°F
NW 5 mph
precip
11%
NIGHT
84°F
W 10 mph
precip
10%
09.16
wed
DAY
92°F
SW 12 mph
precip
10%
NIGHT
82°F
SW 14 mph
precip
10%
09.17
thu
DAY
92°F
SW 14 mph
precip
3%
NIGHT
82°F
SW 12 mph
precip
9%
09.18
fri
DAY
92°F
W 9 mph
precip
3%
NIGHT
78°F
W 6 mph
precip
12%
09.19
sat
DAY
92°F
W 6 mph
precip
3%
NIGHT
80°F
SW 9 mph
precip
76%
09.20
sun
DAY
92°F
N 6 mph
precip
5%
NIGHT
86°F
NW 2 mph
precip
36%
09.21
mon
DAY
92°F
NE 7 mph
precip
5%
NIGHT
86°F
E 4 mph
precip
8%

Naples Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Naples was 31.1°F. The maximum and minimum values were 30.6°F and 31.6°F respectively.

Naples on the Weather Map

Best Time to Visit Naples
The most sunny months:
March 19 days
April 17 days
December 16 days
The most warm months:
July 93.3 °F
August 93.3 °F
June 91.6 °F
Warmest sea temperature:
August 91.7 °F
July 91.2 °F
September 90.6 °F
The most cold months:
January 73.0 °F
December 76.4 °F
February 77.7 °F
The most rainy months:
July 5 days
June 5 days
September 4 days
The most windy months:
November 9 mph
April 9 mph
October 9 mph