Measurements:
°C
°F
CURRENT WEATHER
17:26
New Castle
50°F
N 11 mph
Feels like: 48°F
Precip: 65%
World Resorts USA New Castle Weather

7 Day Weather Forecast

01.09
fri
DAY
46°F
N 11 mph
precip
0%
NIGHT
54°F
NE 5 mph
precip
100%
01.10
sat
DAY
50°F
SW 11 mph
precip
100%
NIGHT
44°F
NE 11 mph
precip
100%
01.11
sun
DAY
44°F
E 11 mph
precip
0%
NIGHT
32°F
E 15 mph
precip
0%
01.12
mon
DAY
36°F
SE 12 mph
precip
0%
NIGHT
32°F
NE 7 mph
precip
0%
01.13
tue
DAY
40°F
NE 7 mph
precip
0%
NIGHT
40°F
N 10 mph
precip
0%
01.14
wed
DAY
42°F
NE 11 mph
precip
73%
NIGHT
36°F
E 8 mph
precip
0%
01.15
thu
DAY
32°F
NE 7 mph
precip
24%
NIGHT
20°F
S 14 mph
precip
59%

New Castle Sea Water Temperature in January, °F

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for New Castle was 1.9°F. The maximum and minimum values were -0.1°F and 5.4°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 37.9 °F
February 41.5 °F
December 42.3 °F
The most rainy months:
July 3 days
April 3 days
August 3 days
The most windy months:
March 9 mph
April 9 mph
January 8 mph
more details