World Resorts USA Sanibel Island Weather

Sanibel Island 14 Days Forecast

12.08
wed
Day
93°F
E 7 mph
Precip.
6%
Night
79°F
S 7 mph
Precip.
11%
13.08
thu
Day
86°F
SE 5 mph
Precip.
13%
Night
86°F
SE 9 mph
Precip.
5%
14.08
fri
Day
86°F
N 7 mph
Precip.
5%
Night
86°F
SW 7 mph
Precip.
6%
15.08
sat
Day
88°F
N 6 mph
Precip.
6%
Night
82°F
NW 10 mph
Precip.
7%
16.08
sun
Day
84°F
N 6 mph
Precip.
6%
Night
86°F
SE 7 mph
Precip.
4%
17.08
mon
Day
86°F
E 7 mph
Precip.
4%
Night
84°F
SE 13 mph
Precip.
7%
18.08
tue
Day
86°F
SE 6 mph
Precip.
5%
Night
84°F
SE 7 mph
Precip.
7%
19.08
wed
Day
86°F
E 6 mph
Precip.
4%
Night
84°F
E 4 mph
Precip.
7%
20.08
thu
Day
86°F
E 7 mph
Precip.
23%
Night
84°F
N 1 mph
Precip.
12%
21.08
fri
Day
84°F
N 5 mph
Precip.
17%
Night
82°F
W 8 mph
Precip.
19%
22.08
sat
Day
86°F
N 9 mph
Precip.
36%
Night
81°F
W 8 mph
Precip.
10%
23.08
sun
Day
86°F
N 12 mph
Precip.
18%
Night
81°F
W 16 mph
Precip.
14%
24.08
mon
Day
86°F
N 6 mph
Precip.
60%
Night
81°F
NW 11 mph
Precip.
9%
25.08
tue
Day
84°F
W 2 mph
Precip.
9%
Night
82°F
W 11 mph
Precip.
37%

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 88.8°F. The highest and lowest sea temperatures during the month were 90.0°F and 87.3°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 88.0 °F
June 87.1 °F
Warmest sea temp:
August 87.6 °F
July 87.4 °F
September 86.2 °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
+79°F
S 7 mph
Feels like: +86°F
Precip.: 11%
Places in USA:
Name
°F
+72°F
+81°F
+79°F
+90°F
+70°F
+79°F
+75°F
+79°F
+75°F
+72°F
+57°F
+68°F
+79°F
+82°F
+72°F
24 Hours Forecast
Sanibel Island
Local time: 23:02
August 13, thursday
0000
79°F
S
7 mph
0300
81°F
SE
4 mph
0600
81°F
S
8 mph
0900
84°F
S
6 mph
1200
86°F
SE
5 mph
1500
88°F
SE
13 mph
1800
88°F
SE
15 mph
2100
86°F
SE
11 mph
Units of measurement: °C / °F