Current sea water temperature:
+34.2°F
| Minimum sea water temperature in February: | 45.3°F |
| Maximum sea water temperature in February: | 31.5°F |
| Average sea water temperature in February: | 37.3°F |
| more information | |
14 days
forecast
forecast
| New Castle |
monthly
weather
weather
| New Castle |
Sea water temperature for the last 10 days:
| February 26 | 34.2°F | February 21 | 33.4°F |
| February 25 | 34.2°F | February 20 | 33.6°F |
| February 24 | 34.0°F | February 19 | 32.0°F |
| February 23 | 33.6°F | February 18 | 32.2°F |
| February 22 | 33.6°F | February 17 | 32.0°F |
Monthly sea water temperature, °F
When is the warmest sea in New Castle?
Based on the data about daily sea water temperature for the last three years the warmest sea in New Castle was noticed in July, August and September.
Monthly Sea Temperatures in New Castle, °F
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 81.2°F. The highest and lowest sea temperatures during the month were 83.7°F and 78.4°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 79.6°F. The highest and lowest sea temperatures during the month were 84.0°F and 75.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 73.5°F. The highest and lowest sea temperatures during the month were 75.7°F and 71.6°F.
current
weather
weather
| New Castle |
weather in
March
March
| New Castle |
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: 13:27
February 26, thursday
1500
54°F
S
5 mph
5 mph
1800
52°F
SW
4 mph
4 mph
2100
43°F
S
3 mph
3 mph
February 27, friday
0000
34°F
S
2 mph
2 mph
0300
27°F
SE
1 mph
1 mph
0600
27°F
S
2 mph
2 mph
0900
28°F
NE
1 mph
1 mph
1200
36°F
NE
6 mph
6 mph
