Measurements:
°C
°F
CURRENT WEATHER
23:49
New Castle
56°F
SE 6 mph
Feels like: 56°F
Precip: 7%
World Resorts USA New Castle Weather

7 Day Weather Forecast

10.26
mon
DAY
64°F
E 6 mph
precip
2%
NIGHT
56°F
SE 6 mph
precip
7%
10.27
tue
DAY
64°F
S 7 mph
precip
1%
NIGHT
50°F
NW 3 mph
precip
8%
10.28
wed
DAY
62°F
NW 4 mph
precip
13%
NIGHT
54°F
NW 3 mph
precip
25%
10.29
thu
DAY
66°F
NE 6 mph
precip
3%
NIGHT
56°F
NE 5 mph
precip
12%
10.30
fri
DAY
72°F
SE 9 mph
precip
3%
NIGHT
56°F
S 7 mph
precip
5%
10.31
sat
DAY
58°F
S 6 mph
precip
11%
NIGHT
50°F
NW 3 mph
precip
26%
11.01
sun
DAY
66°F
NW 7 mph
precip
15%
NIGHT
60°F
N 6 mph
precip
25%

New Castle Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for New Castle was 18.8°F. The maximum and minimum values were 16.2°F and 20.9°F respectively.

New Castle on the Weather Map

Best Time to Visit New Castle
The most sunny months:
November 17 days
June 15 days
October 15 days
The most warm months:
July 89.9 °F
August 86.4 °F
June 83.9 °F
Warmest sea temperature:
July 84.1 °F
August 83.4 °F
September 77.4 °F
The most cold months:
January 37.3 °F
February 40.7 °F
December 42.3 °F
The most rainy months:
July 3 days
August 3 days
June 2 days
The most windy months:
March 9 mph
April 9 mph
January 8 mph
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