Swimming in Long Island in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Long Island in september 2025.
In september, according to seasonal norms, the sea temperature in Long Island is:
Minimum: 84°F
Average: 85°F
Maximum: 87°F
Other useful seasonal weather averages in september:
- Outside temperature: 83°F to 84°F
- Most common weather: "Moderate rain at times"
- The wind blows at 18mph
- It rains a total of 7.7in, over 11 day(s).
Should we swim in Long Island in september?
Yes! The water temperature in Long Island in september is ideal
In september, swimming is ideal on the beaches around Long Island! With water reaching 87°F at most and 85°F on average, spending time in the water is very pleasant.
Note also that in september, the climate is tolerable with an average outside temperature of 84°F, 7.7in of precipitation (over 11 days) and 76.89 % humidity.
Water and normal seasonal temperatures in Long Island in september
| September | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 85°F | ||
| Minimum outside temperature | 83°F | ||
| Wind speed | 13.7mph | ||
| Wind temperature | 85°F | ||
| Precipitation | 7.7in | ||
| Number of days of rain | 11 jour(s) (37%) | ||
| Humidity | 77% | ||
| Visibility in kilometers | 9.43km | ||
| Cloud cover | 40% | ||
| Our opinion | ideal swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Long Island
Swim elsewhere in the Bahamas in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Nassau in september | 86°F | 88°F | ideal swimming | Andros Town in september | 86°F | 88°F | ideal swimming | Freeport in september | 86°F | 87°F | ideal swimming | Bimini in september | 86°F | 87°F | ideal swimming | Eleuthera in september | 85°F | 87°F | ideal swimming | Paradise Island in september | 86°F | 88°F | ideal swimming |