Sanibel Island in september: average Weather, Temperature and Climate
Weather in Sanibel Island in september 2025
The weather in Sanibel Island in september comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather UV index: 7
Weather at 6am
81°F
Clear/Sunny
40% of time
27%
22%
10%
Weather at 12pm
88°F
Clear/Sunny
31% of time
24%
23%
19%
Weather at 6pm
85°F
Heavy rain
36% of time
27%
22%
14%
Weather at 3am
81°F
42%
26%
22%
8%
Evolution of daily average temperature and precipitation in Sanibel Island in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Sanibel Island in september.
The climate of Sanibel Island in september is tolerable
the weather in Sanibel Island in september is wet (with 15.3in of rainfall over 19 days). The weather is better from the previous month since in august it receives an average of 18in of precipitation over 23 days.
The climate good in that area september. The thermometer averaged maximum of 88°F. The minimum is 81°F. Thus, the mean temperature average in september in Sanibel Island is 85°F. Note that seasonal normals in contrast with those observed in Sanibel Island in september with a maximum record of 92°F in 2018 and a minimum record of 74°F in 2013. You can expect to have about 26 days with temperatures above 86°F, or 87 of the month.
Day length in Sanibel Island in september is 12:18. Sunrise is at 06:14 and sunset is at 18:32.
With a correct weather, this month is okay (but not good) to go there.
Sanibel Island: another month?
If you can push back the dates of your trip, we advise you to go in october to Sanibel Island. more information
September: another location in Florida?
If you want to go to Florida in september, there are destinations with better weather than Sanibel Island:
In september, Everglades National Park, Apalachicola, Cedar Key, Falling Waters State Park, Fort Walton Beach and Gainesville have good weather.
Seasonal average climate and temperature of Sanibel Island in september
Check below seasonal norms These datas are compiled from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 85°F | ||||
| Highest temperature | 88°F | ||||
| Lowest temperature | 81°F | ||||
| Highest record temperature | 92°F (2018) | ||||
| Lowest record temperature | 74°F (2013) | ||||
| Number of days at +86°F | 26 day(s) (87%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 86°F | ||||
| Lowest sea temperature | 83°F | ||||
| Highest sea temperature | 88°F | ||||
| Wind | |||||
| Wind speed | 17km/h | ||||
| Wind temperature | 81°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 15.3in | ||||
| Number of days with rainfall | 19 day(s) (64%) | ||||
| Record daily rainfall | 6.2in (2017) | ||||
| Other climate data | |||||
| Humidity | 81% | ||||
| Visibility | 8.93km | ||||
| Cloud cover | 29% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:14 | ||||
| Time of sunset | 18:32 | ||||
| Length of day | 12:18 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Sanibel Island in september 2024:
76°F to 88°F
76°F to 88°F
79°F to 92°F
79°F to 90°F
79°F to 94°F
79°F to 90°F
79°F to 90°F
79°F to 92°F
79°F to 92°F
77°F to 90°F
77°F to 88°F
81°F to 90°F
81°F to 90°F
81°F to 92°F
81°F to 88°F
81°F to 88°F
79°F to 86°F
79°F to 92°F
77°F to 88°F
76°F to 90°F
74°F to 90°F
76°F to 92°F
76°F to 92°F
76°F to 95°F
79°F to 90°F
77°F to 85°F
85°F to 86°F
81°F to 92°F
79°F to 94°F
81°F to 94°F
Map: other cities in Florida in september
Cities near Sanibel Island:
| Captiva Island in september | tolerable weather |
| Pine Island in september | tolerable weather |
| Cape Coral in september | tolerable weather |
| Fort Myers in september | tolerable weather |
| Naples in september | tolerable weather |
| Port Charlotte in september | tolerable weather |
| Marco Island in september | tolerable weather |
| Lido Key in september | tolerable weather |
| Sarasota in september | tolerable weather |
| Big Cypress National Preserve in september | tolerable weather |
| Anna Maria Island in september | tolerable weather |
| Sebring in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Sanibel Island
perfect weather
good
tolerable
bad
very bad
Weather data for Sanibel Island in september:
Weather data for Sanibel Island for september are derived from an average of the weather forecast since 2009 in Sanibel Island. There is a margin of error and these forecasts are to be considered as general information only. The weather in Sanibel Island can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Sanibel Island.