Measurements:
°C
°F
CURRENT WEATHER
13:08
New Castle
88°F
SE 5 mph
Feels like: 88°F
Precip: 0%
World Resorts USA New Castle Weather

7 Day Weather Forecast

06.04
thu
DAY
88°F
SE 5 mph
precip
0%
NIGHT
66°F
NE 6 mph
precip
2%
06.05
fri
DAY
86°F
E 7 mph
precip
0%
NIGHT
72°F
NE 5 mph
precip
2%
06.06
sat
DAY
90°F
E 11 mph
precip
0%
NIGHT
76°F
E 7 mph
precip
1%
06.07
sun
DAY
84°F
SE 11 mph
precip
5%
NIGHT
70°F
S 7 mph
precip
3%
06.08
mon
DAY
76°F
SW 11 mph
precip
5%
NIGHT
58°F
NE 3 mph
precip
1%
06.09
tue
DAY
78°F
E 5 mph
precip
0%
NIGHT
64°F
E 6 mph
precip
1%
06.10
wed
DAY
82°F
E 6 mph
precip
0%
NIGHT
70°F
E 3 mph
precip
1%

New Castle Sea Water Temperature in June, °F

Select Year: 2025 2024 2023

The average sea surface temperature in June 2025 for New Castle was 21.4°F. The maximum and minimum values were 17.4°F and 25.8°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
June 2 days
The most windy months:
March 9 mph
April 9 mph
January 8 mph
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