Current sea water temperature:
+44.1°F
| Minimum sea water temperature in March: | 51.6°F |
| Maximum sea water temperature in March: | 35.6°F |
| Average sea water temperature in March: | 44.1°F |
| more information | |
14 days
forecast
forecast
| New Castle |
monthly
weather
weather
| New Castle |
Sea water temperature for the last 10 days:
| March 18 | 44.1°F | March 13 | 42.6°F |
| March 17 | 42.6°F | March 12 | 43.7°F |
| March 16 | 42.1°F | March 11 | 42.6°F |
| March 15 | 42.6°F | March 10 | 39.7°F |
| March 14 | 41.7°F | March 9 | 40.3°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: 20:11
March 18, wednesday
2100
32°F
N
6 mph
6 mph
March 19, thursday
0000
32°F
NW
6 mph
6 mph
0300
32°F
NW
5 mph
5 mph
0600
30°F
N
4 mph
4 mph
0900
36°F
N
6 mph
6 mph
1200
43°F
N
8 mph
8 mph
1500
46°F
N
8 mph
8 mph
1800
45°F
NE
7 mph
7 mph
