Measurements:
°C
°F
New Castle
18°F
SE 11 mph
Feels like: 6°F
Precip: 0%
World Resorts USA New Castle Weather

New Castle Sea Water Temperature

Current Sea Water Temperature:
+40.8°F
Maximum Sea Water Temperature in December: 51.0°F
Minimum Sea Water Temperature in December: 34.2°F
Average water temperature in December: 43.4°F

Sea Water Temperature for the Last 10 Days:

December 22 40.8°F December 17 40.0°F
December 21 41.2°F December 16 40.4°F
December 20 41.6°F December 15 41.8°F
December 19 40.6°F December 14 42.6°F
December 18 40.2°F December 13 43.2°F

When is the Warmest Sea for New Castle?

According to our data for the last three years for New Castle the highest average sea water temperature was in July, August and September.

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for New Castle was 85.8°F. The maximum and minimum values were 79.4°F and 89.4°F respectively.

Sea Water Temperature in August

Select Year: 2024 2023 2022

The average sea surface temperature in August 2024 for New Castle was 82.9°F. The maximum and minimum values were 78.6°F and 87.8°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for New Castle was 76.3°F. The maximum and minimum values were 71.8°F and 81.0°F respectively.

Best Time to Visit New Castle
The most sunny months:
November 16 days
September 15 days
October 15 days
The most warm months:
July 88.8 °F
August 86.1 °F
June 82.5 °F
Warmest sea temperature:
July 84.2 °F
August 83.4 °F
September 77.4 °F
The most cold months:
January 39.1 °F
February 42.1 °F
December 43.7 °F
The most rainy months:
July 4 days
August 4 days
December 3 days
The most windy months:
March 9 mph
April 8 mph
February 8 mph

New Castle on the Weather Map

USA Resorts:
NAME
Boston +10
Chicago +20
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +50
Los Angeles +54
Miami +62
New York +16
Orlando +50
San Diego +54
San Francisco +54
Sarasota +48
Tampa +46
Washington +20
24 Hours Weather Forecast
New Castle
Local time: 05:03
22 dec, sunday
0600 18°F
SE
11 mph
0900 18°F
SE
11 mph
1200 26°F
SE
10 mph
1500 24°F
SE
9 mph
1800 26°F
SE
7 mph
2100 20°F
S
6 mph
23 dec, monday
0000 18°F
S
4 mph
0300 16°F
S
3 mph