World Resorts USA Sanibel Island Weather

Sanibel Island 14 Days Forecast

23.09
wed
Day
84°F
NE 3 mph
Precip.
17%
Night
82°F
W 8 mph
Precip.
21%
24.09
thu
Day
86°F
S 8 mph
Precip.
4%
Night
79°F
SW 16 mph
Precip.
22%
25.09
fri
Day
84°F
SW 12 mph
Precip.
4%
Night
79°F
SW 15 mph
Precip.
17%
26.09
sat
Day
82°F
SW 7 mph
Precip.
13%
Night
81°F
SW 11 mph
Precip.
3%
27.09
sun
Day
82°F
NW 3 mph
Precip.
13%
Night
81°F
SW 6 mph
Precip.
15%
28.09
mon
Day
84°F
N 7 mph
Precip.
9%
Night
79°F
N 16 mph
Precip.
65%
29.09
tue
Day
81°F
NW 8 mph
Precip.
61%
Night
79°F
W 7 mph
Precip.
37%
30.09
wed
Day
84°F
W 9 mph
Precip.
18%
Night
81°F
W 9 mph
Precip.
18%
01.10
thu
Day
84°F
NW 11 mph
Precip.
15%
Night
81°F
NW 9 mph
Precip.
22%
02.10
fri
Day
77°F
NW 12 mph
Precip.
74%
Night
75°F
W 22 mph
Precip.
45%
03.10
sat
Day
84°F
N 27 mph
Precip.
72%
Night
81°F
NW 10 mph
Precip.
51%
04.10
sun
Day
82°F
W 7 mph
Precip.
5%
Night
82°F
NE 7 mph
Precip.
15%
05.10
mon
Day
81°F
SW 3 mph
Precip.
20%
Night
81°F
SW 9 mph
Precip.
75%

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 87.8°F. The highest and lowest sea temperatures during the month were 89.1°F and 85.8°F.

Sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 81.6°F. The highest and lowest sea temperatures during the month were 84.9°F and 79.0°F.

Air temperature in Sanibel Island, °F

Precipitation total in Sanibel Island, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Sanibel Island

Sunniest months:
March 19 days
April 18 days
December 17 days
Warmest months:
July 88.3 °F
August 88.3 °F
June 87.1 °F
Warmest sea temp:
August 87.7 °F
July 87.4 °F
September 86.5 °F
Coldest months:
January 69.1 °F
December 72.1 °F
February 72.6 °F
Rainiest months:
July 5 days
June 5 days
August 4 days
Windiest months:
October 10.5 mph
November 10.4 mph
January 10.3 mph

Sanibel Island on a weather map

Sanibel Island
+82°F
NW 7 mph
Feels like: +90°F
Precip.: 67%
Places in USA:
Name
°F
+57°F
+59°F
+79°F
+84°F
+72°F
+82°F
+66°F
+61°F
+70°F
+59°F
+70°F
+79°F
+84°F
+59°F
24 Hours Forecast
Sanibel Island
Local time: 01:26
September 23, wednesday
0300
82°F
NW
11 mph
0600
81°F
NW
9 mph
0900
81°F
W
7 mph
1200
84°F
NE
3 mph
1500
84°F
E
7 mph
1800
84°F
SE
6 mph
2100
84°F
SW
6 mph
September 24, thursday
0000
82°F
W
8 mph
Units of measurement: °C / °F