Average sea water temperature in April:
+53.4°F
| Minimum sea water temperature in April: | 61.3°F |
| Maximum sea water temperature in April: | 46.2°F |
Daily sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 55.9°F. The highest and lowest sea temperatures during the month were 61.3°F and 49.5°F.
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| New Castle |
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| New Castle |
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| New Castle |
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Monthly sea water temperature in New Castle, °F
Which USA resorts have warmest sea in April?
| Place name | April 2026 | April 2025 |
|---|---|---|
| Everglades | 78.4°F | 78.8°F |
| West Palm Beach | 78.2°F | 78.3°F |
| Key West | 78.1°F | 78.0°F |
| Key Largo | 78.1°F | 78.5°F |
| Fort Lauderdale | 78.0°F | 78.0°F |
| Miami Beach | 78.0°F | 78.3°F |
| Kailua Kona | 77.5°F | 78.1°F |
| Miami | 77.4°F | 77.9°F |
| Honolulu | 76.4°F | 77.4°F |
| Cape Coral | 76.3°F | 77.2°F |
| Hawaii | 76.2°F | 77.3°F |
| Kahului | 76.1°F | 76.8°F |
| Marco Island | 76.1°F | 77.3°F |
| Kauai | 75.9°F | 74.9°F |
| Maui | 75.9°F | 76.6°F |
| Naples | 75.6°F | 77.0°F |
| Tampa | 75.1°F | 76.6°F |
| St. Petersburg | 75.1°F | 76.3°F |
| Cocoa Beach | 74.9°F | 75.1°F |
| Oahu | 74.9°F | 76.4°F |
Best time for vacation in New Castle
New Castle on a weather map
Places in USA:
Name
°F
24 Hours Forecast
New Castle
Local time: 16:47
April 28, tuesday
1800
57°F
N
6 mph
6 mph
2100
52°F
NW
4 mph
4 mph
April 29, wednesday
0000
52°F
NW
4 mph
4 mph
0300
50°F
N
3 mph
3 mph
0600
48°F
NW
4 mph
4 mph
0900
55°F
NW
6 mph
6 mph
1200
61°F
NW
9 mph
9 mph
1500
63°F
NW
11 mph
11 mph
