Average sea water temperature in March:
+44.4°F
| Minimum sea water temperature in March: | 50.5°F |
| Maximum sea water temperature in March: | 35.6°F |
Daily sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 40.9°F. The highest and lowest sea temperatures during the month were 46.2°F and 35.6°F.
sea water
temperature
temperature
| Dewey Beach |
monthly
weather
weather
| Dewey Beach |
current
weather
weather
| Dewey Beach |
14 days
forecast
forecast
| Dewey Beach |
Monthly sea water temperature in Dewey Beach, °F
Which USA resorts have warmest sea in March?
| Place name | March 2026 | March 2025 |
|---|---|---|
| Everglades | 77.4°F | 74.4°F |
| Kailua Kona | 77.2°F | 77.7°F |
| West Palm Beach | 77.1°F | 75.8°F |
| Key Largo | 76.8°F | 75.1°F |
| Miami Beach | 76.8°F | 75.3°F |
| Honolulu | 76.7°F | 76.8°F |
| Fort Lauderdale | 76.6°F | 75.8°F |
| Hawaii | 76.5°F | 76.7°F |
| Kauai | 76.5°F | 75.0°F |
| Key West | 76.5°F | 74.5°F |
| Miami | 76.0°F | 74.4°F |
| Kahului | 75.7°F | 76.3°F |
| Maui | 75.5°F | 76.0°F |
| Oahu | 74.9°F | 75.7°F |
| Cape Coral | 73.9°F | 71.7°F |
| Marco Island | 73.5°F | 71.8°F |
| Naples | 72.6°F | 71.4°F |
| Corpus Christi | 71.9°F | 67.0°F |
| Tampa | 71.7°F | 69.3°F |
| Cocoa Beach | 71.7°F | 70.0°F |
Best time for vacation in Dewey Beach
Dewey Beach on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Dewey Beach
Local time: 09:30
April 29, wednesday
1200
55°F
NW
15 mph
15 mph
1500
57°F
N
19 mph
19 mph
1800
55°F
N
16 mph
16 mph
2100
55°F
N
13 mph
13 mph
April 30, thursday
0000
55°F
N
13 mph
13 mph
0300
55°F
N
11 mph
11 mph
0600
57°F
NE
11 mph
11 mph
0900
55°F
SE
18 mph
18 mph
