World Resorts USA New Castle Weather

New Castle Sea Temperature in August

Average sea water temperature in August:
+80.1°F
Minimum sea water temperature in August: 86.2°F
Maximum sea water temperature in August: 75.0°F

Daily sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 80.5°F. The highest and lowest sea temperatures during the month were 82.6°F and 78.8°F.

Monthly sea water temperature in New Castle, °F

Which USA resorts have warmest sea in August?

Place name August 2026 August 2025
Key West 88.8°F 88.8°F
Key Largo 88.4°F 88.7°F
Naples 88.1°F 88.7°F
New Orleans 88.0°F 87.4°F
Houston 87.8°F 87.8°F
Cape Coral 87.6°F 88.7°F
Miami 87.3°F 88.1°F
Miami Beach 87.1°F 87.9°F
Sarasota 87.1°F 88.6°F
Siesta Key 87.1°F 88.6°F
Pensacola 86.9°F 86.5°F
Clearwater Beach 86.8°F 88.5°F
Tampa 86.8°F 88.6°F
Fort Lauderdale 86.8°F 87.2°F
St. Petersburg 86.7°F 88.7°F
St. George Island 86.7°F 86.5°F
Corpus Christi 86.5°F 87.0°F
West Palm Beach 86.4°F 86.8°F
Pensacola Beach 86.4°F 86.6°F
Orange Beach 86.3°F 86.5°F

Best time for vacation in New Castle

Sunniest months:
November 17 days
October 16 days
June 15 days
Warmest months:
July 85.9 °F
August 82.8 °F
June 80.5 °F
Warmest sea temp:
July 80.7 °F
August 80.0 °F
September 74.5 °F
Coldest months:
January 38.6 °F
February 41.6 °F
December 43.1 °F
Rainiest months:
July 3 days
August 3 days
June 2 days
Windiest months:
March 9.2 mph
April 8.7 mph
January 8.5 mph

New Castle on a weather map

New Castle
+61°F
SW 7 mph
Feels like: +61°F
Precip.: 5%
Places in USA:
Name
°F
+55°F
+64°F
+79°F
+77°F
+70°F
+81°F
+63°F
+63°F
+68°F
+59°F
+68°F
+73°F
+79°F
+63°F
24 Hours Forecast
New Castle
Local time: 07:02
September 19, saturday
0900
64°F
SW
10 mph
1200
72°F
W
6 mph
1500
75°F
SW
5 mph
1800
70°F
NW
11 mph
2100
63°F
NW
7 mph
September 20, sunday
0000
64°F
W
7 mph
0300
64°F
W
7 mph
0600
63°F
W
6 mph
Units of measurement: °C / °F