30.12
tue
tue
Day
30°F
E 18 mph
Precip.
0%
0%
Night
25°F
E 11 mph
Precip.
0%
0%
31.12
wed
wed
Day
34°F
E 14 mph
Precip.
0%
0%
Night
30°F
E 12 mph
Precip.
0%
0%
01.01
thu
thu
Day
34°F
E 11 mph
Precip.
0%
0%
Night
27°F
E 4 mph
Precip.
0%
0%
02.01
fri
fri
Day
32°F
E 11 mph
Precip.
0%
0%
Night
28°F
E 4 mph
Precip.
0%
0%
03.01
sat
sat
Day
34°F
S 4 mph
Precip.
0%
0%
Night
30°F
S 4 mph
Precip.
0%
0%
04.01
sun
sun
Day
34°F
S 8 mph
Precip.
0%
0%
Night
30°F
W 4 mph
Precip.
0%
0%
05.01
mon
mon
Day
37°F
NW 6 mph
Precip.
0%
0%
Night
36°F
N 8 mph
Precip.
0%
0%
sea water
temperature
temperature
| New Castle |
monthly
weather
weather
| New Castle |
current
weather
weather
| New Castle |
14 days
forecast
forecast
| New Castle |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 40.7°F. The highest and lowest sea temperatures during the month were 46.9°F and 37.4°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 35.4°F. The highest and lowest sea temperatures during the month were 41.7°F and 31.8°F.
Air temperature in New Castle, °F
Precipitation total in New Castle, in.
* Charts above show average data for the last 3 years.
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: 15:50
December 30, tuesday
1800
30°F
E
16 mph
16 mph
2100
27°F
E
14 mph
14 mph
December 31, wednesday
0000
25°F
E
11 mph
11 mph
0300
25°F
E
12 mph
12 mph
0600
25°F
E
11 mph
11 mph
0900
28°F
E
11 mph
11 mph
1200
34°F
E
14 mph
14 mph
1500
36°F
E
13 mph
13 mph
