Niagara Falls Weather: September
 |
Average Day Temperature: | 73.8°F |
|
Average Night Temperature: | 61.2°F |
|
Sea Water Temperature: | 71.5°F |
|
Number of Sunny Days: | 13 days |
| Sunshine Hours: | 11.8 - 13.2 hours | |
|
Number of Rainy Days: | 1 day |
| Precipitation Totals: | 0.6 in | |
| detailed information | ||
forecast
| Niagara Falls |
Temperature
| Niagara Falls |
Air Temperature in September, °F
The highest day temperature in September 2025 was 89°F. The lowest night temperature was 48°F. The average values for day and night temperatures during September were 77.8°F и 57.9°F respectivly.
Niagara Falls Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Niagara Falls was 68.2°F. The maximum and minimum values were 64.2°F and 71.4°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Niagara Falls is 0.6 in. It makes september the least rainy month of the year.
The average wind speed in September is 8.3 mph. It makes September one of the most windless months of the year for Niagara Falls.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Niagara Falls in September is 7.8 hours.
Niagara Falls on the Weather Map
| Halifax |  |
+12 |
| Kingston |  |
+4 |
| Moncton | |
-6 |
| Montreal | |
-2 |
| Niagara Falls | |
+10 |
| Ottawa | |
-4 |
| Prince Edward Island |  |
+6 |
| Quebec | |
-12 |
| Rocky Harbour |  |
+28 |
| St. John's | |
+32 |
| Sydney | |
+24 |
| Toronto | |
+10 |
| Vancouver | |
+42 |
| Victoria | |
+44 |
| Winnipeg | |
+12 |
| 0300 |  |
10°F | N 7 mph |
| 0600 |  |
12°F | N 9 mph |
| 0900 |  |
16°F | N 9 mph |
| 1200 | |
24°F | N 9 mph |
| 1500 |  |
28°F | NE 9 mph |
| 1800 | |
28°F | NE 8 mph |
| 2100 | |
30°F | NE 9 mph |
| 0000 | |
28°F | NE 12 mph |