Measurements:
°C
°F
CURRENT WEATHER
07:21
New Castle
44°F
W 3 mph
Feels like: 40°F
Precip: 72%
World Resorts USA New Castle Weather

7 Day Weather Forecast

04.03
fri
DAY
54°F
NE 9 mph
precip
0%
NIGHT
62°F
NE 8 mph
precip
0%
04.04
sat
DAY
80°F
N 4 mph
precip
0%
NIGHT
58°F
NW 6 mph
precip
0%
04.05
sun
DAY
68°F
NE 17 mph
precip
0%
NIGHT
48°F
SE 11 mph
precip
0%
04.06
mon
DAY
50°F
SE 14 mph
precip
0%
NIGHT
44°F
SE 9 mph
precip
0%
04.07
tue
DAY
48°F
SE 12 mph
precip
0%
NIGHT
36°F
S 12 mph
precip
0%
04.08
wed
DAY
42°F
SW 8 mph
precip
0%
NIGHT
32°F
NW 5 mph
precip
0%
04.09
thu
DAY
48°F
NW 6 mph
precip
0%
NIGHT
36°F
NW 4 mph
precip
0%

New Castle Sea Water Temperature in April, °F

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for New Castle was 11.8°F. The maximum and minimum values were 10.0°F and 15.2°F respectively.

New Castle on the Weather Map

Best Time to Visit New Castle
The most sunny months:
November 17 days
October 16 days
September 15 days
The most warm months:
July 89.5 °F
August 86.0 °F
June 83.1 °F
Warmest sea temperature:
July 84.2 °F
August 83.3 °F
September 77.2 °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
April 3 days
The most windy months:
March 9 mph
April 9 mph
January 8 mph
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