Niagara Falls Weather: May
 |
Average Day Temperature: | 62.7°F |
|
Average Night Temperature: | 50.8°F |
|
Sea Water Temperature: | 49.7°F |
|
Number of Sunny Days: | 10 days |
| Sunshine Hours: | 14.1 - 15.1 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 0.8 in | |
| detailed information | ||
forecast
| Niagara Falls |
Temperature
| Niagara Falls |
Air Temperature in May, °F
The highest day temperature in May 2025 was 74°F. The lowest night temperature was 37°F. The average values for day and night temperatures during May were 62.2°F и 49.1°F respectivly.
Niagara Falls Water Sea Temperature in May, °F
The average sea surface temperature in May 2025 for Niagara Falls was 48.8°F. The maximum and minimum values were 42.0°F and 57.0°F respectively.
You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in May, in
Precipitation total in May for Niagara Falls is 0.8 in. It makes may one of the least rainy months of the year.
The average wind speed in May is 8.6 mph. It makes May 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 May is 7.6 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 |