Weather in Niagara Falls: May
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Average day temperature: | 62.3°F |
| Average night temperature: | 50.8°F | |
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Sea water temperature: | 49.7°F |
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Number of sunny days: | 11 days |
| Day length: | 14.1 - 15.1 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.9 in. | |
| more information | ||
14 days
forecast
forecast
| Niagara Falls |
sea water
temperature
temperature
| Niagara Falls |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 89°F. At the same time the lowest night temperature was 32°F. Daily and nightly averages during May were 63.7°F and 48.9°F.
Sea water temperature in Niagara Falls in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 49.3°F. The highest and lowest sea temperatures during the month were 57.4°F and 43.2°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Niagara Falls in May is 0.9 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 8.2 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.3.
Best time for vacation in Niagara Falls
Niagara Falls on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Niagara Falls
Local time: 23:28
June 06, saturday
0000
72°F
NE
6 mph
6 mph
0300
68°F
NE
12 mph
12 mph
0600
64°F
NE
16 mph
16 mph
0900
64°F
NE
17 mph
17 mph
1200
66°F
NE
16 mph
16 mph
1500
66°F
NE
13 mph
13 mph
1800
68°F
NE
11 mph
11 mph
2100
63°F
E
6 mph
6 mph
