28.04
tue
tue
Day
61°F
N 8 mph
Precip.
0%
0%
Night
52°F
NW 4 mph
Precip.
0%
0%
29.04
wed
wed
Day
61°F
NW 9 mph
Precip.
0%
0%
Night
54°F
N 9 mph
Precip.
100%
100%
30.04
thu
thu
Day
59°F
SE 14 mph
Precip.
0%
0%
Night
46°F
SE 6 mph
Precip.
0%
0%
01.05
fri
fri
Day
57°F
E 9 mph
Precip.
62%
62%
Night
46°F
SE 6 mph
Precip.
0%
0%
02.05
sat
sat
Day
54°F
SE 9 mph
Precip.
0%
0%
Night
45°F
SE 9 mph
Precip.
0%
0%
03.05
sun
sun
Day
52°F
SE 13 mph
Precip.
0%
0%
Night
46°F
NE 7 mph
Precip.
0%
0%
04.05
mon
mon
Day
57°F
E 14 mph
Precip.
51%
51%
Night
45°F
SE 6 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 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.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 62.9°F. The highest and lowest sea temperatures during the month were 65.1°F and 61.0°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: 16:43
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
