Average sea water temperature in May:
+49.7°F
| Minimum sea water temperature in May: | 65.3°F |
| Maximum sea water temperature in May: | 40.8°F |
Daily sea water temperature 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.
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| Niagara Falls |
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| Niagara Falls |
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| Niagara Falls |
14 days
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| Niagara Falls |
Monthly sea water temperature in Niagara Falls, °F
Which USA resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Key West | 84.3°F | 83.5°F |
| Miami | 83.3°F | 82.6°F |
| Naples | 82.9°F | 83.5°F |
| Miami Beach | 82.7°F | 82.4°F |
| Tampa | 81.9°F | 82.7°F |
| West Palm Beach | 81.7°F | 81.1°F |
| Fort Lauderdale | 81.7°F | 81.1°F |
| Clearwater Beach | 81.5°F | 82.6°F |
| Sarasota | 81.5°F | 82.7°F |
| Siesta Key | 81.3°F | 82.5°F |
| Cocoa Beach | 80.4°F | 79.4°F |
| Corpus Christi | 79.5°F | 80.9°F |
| South Padre Island | 79.1°F | 80.0°F |
| Orlando | 78.4°F | 77.2°F |
| Houston | 78.4°F | 79.5°F |
| Daytona Beach | 78.1°F | 76.0°F |
| New Orleans | 78.0°F | 79.5°F |
| Honolulu | 78.0°F | 78.1°F |
| Hawaii | 77.9°F | 78.0°F |
| St. George Island | 77.8°F | 79.2°F |
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: 17:02
September 14, monday
1800
66°F
SE
3 mph
3 mph
2100
61°F
N
3 mph
3 mph
September 15, tuesday
0000
59°F
NW
5 mph
5 mph
0300
59°F
N
4 mph
4 mph
0600
57°F
N
5 mph
5 mph
0900
59°F
N
7 mph
7 mph
1200
70°F
N
11 mph
11 mph
1500
75°F
NE
11 mph
11 mph
