Average sea water temperature in March:
+45.0°F
| Minimum sea water temperature in March: | 50.5°F |
| Maximum sea water temperature in March: | 38.8°F |
Daily sea water temperature in March, °F
Show year:
2025
2024
2023
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The average sea water temperature in March of 2025 was 44.5°F. The highest and lowest sea temperatures during the month were 49.1°F and 39.9°F.
sea water
temperature
temperature
| Dewey Beach |
monthly
weather
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| Dewey Beach |
current
weather
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| Dewey Beach |
14 days
forecast
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| Dewey Beach |
Monthly sea water temperature in Dewey Beach, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
12
24
36
48
60
72
84
96
48.3
57.9
65.9
73.2
74.6
74.9
67.7
58
50.7
45
40.8
42.3
Which USA resorts have warmest sea in March?
| Place name | March 2025 | March 2024 |
|---|---|---|
| Kailua Kona | 77.7°F | 76.5°F |
| Honolulu | 76.8°F | 75.8°F |
| Hawaii | 76.7°F | 75.7°F |
| Maui | 76.0°F | 75.1°F |
| Fort Lauderdale | 75.8°F | 75.7°F |
| West Palm Beach | 75.8°F | 76.6°F |
| Oahu | 75.7°F | 74.5°F |
| Miami Beach | 75.3°F | 76.0°F |
| Kauai | 75.0°F | 74.5°F |
| Key West | 74.5°F | 76.5°F |
| Everglades | 74.4°F | 77.3°F |
| Miami | 74.4°F | 75.5°F |
| Marco Island | 71.8°F | 74.5°F |
| Cape Coral | 71.7°F | 74.2°F |
| Naples | 71.4°F | 73.8°F |
| Cocoa Beach | 70.0°F | 71.5°F |
| Tampa | 69.3°F | 71.7°F |
| Sarasota | 68.6°F | 71.4°F |
| Siesta Key | 68.5°F | 71.3°F |
| Clearwater Beach | 67.6°F | 70.4°F |
Best time for vacation in Dewey Beach
Dewey Beach on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Dewey Beach
Local time: 18:50
April 27, sunday
2100
59°F
SE
18 mph
18 mph
April 28, monday
0000
54°F
SE
13 mph
13 mph
0300
52°F
SE
12 mph
12 mph
0600
48°F
SE
11 mph
11 mph
0900
57°F
S
9 mph
9 mph
1200
66°F
SW
6 mph
6 mph
1500
68°F
W
6 mph
6 mph
1800
63°F
NW
9 mph
9 mph
