15.08
sat
sat
Day
88°F
SW 4 mph
Precip.
3%
3%
Night
72°F
N 6 mph
Precip.
11%
11%
16.08
sun
sun
Day
73°F
N 9 mph
Precip.
72%
72%
Night
72°F
N 10 mph
Precip.
93%
93%
17.08
mon
mon
Day
84°F
SE 14 mph
Precip.
11%
11%
Night
72°F
S 9 mph
Precip.
8%
8%
18.08
tue
tue
Day
81°F
S 6 mph
Precip.
1%
1%
Night
70°F
N 2 mph
Precip.
4%
4%
19.08
wed
wed
Day
84°F
N 9 mph
Precip.
2%
2%
Night
73°F
N 8 mph
Precip.
10%
10%
20.08
thu
thu
Day
88°F
E 6 mph
Precip.
3%
3%
Night
73°F
NW 7 mph
Precip.
52%
52%
21.08
fri
fri
Day
81°F
SW 6 mph
Precip.
8%
8%
Night
72°F
W 4 mph
Precip.
20%
20%
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 August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 80.7°F. The highest and lowest sea temperatures during the month were 82.6°F and 79.3°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: 03:43
August 15, saturday
0600
72°F
SW
6 mph
6 mph
0900
73°F
SW
6 mph
6 mph
1200
88°F
SW
4 mph
4 mph
1500
88°F
SE
5 mph
5 mph
1800
86°F
S
6 mph
6 mph
2100
75°F
NW
7 mph
7 mph
August 16, sunday
0000
72°F
N
6 mph
6 mph
0300
72°F
N
5 mph
5 mph
