World Resorts USA New Castle Weather

New Castle Sea Temperature in October

Average sea water temperature in October:
+65.2°F
Minimum sea water temperature in October: 72.9°F
Maximum sea water temperature in October: 58.3°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 66.2°F. The highest and lowest sea temperatures during the month were 72.9°F and 58.3°F.

Monthly sea water temperature in New Castle, °F

Which USA resorts have warmest sea in October?

Place name October 2025 October 2024
Key West 83.8°F 82.9°F
West Palm Beach 83.5°F 83.3°F
Fort Lauderdale 83.5°F 83.0°F
Miami Beach 83.4°F 83.4°F
Key Largo 83.0°F 83.1°F
Miami 82.7°F 82.9°F
Everglades 82.5°F 82.6°F
Corpus Christi 82.2°F 80.6°F
Marco Island 82.0°F 81.9°F
Naples 81.9°F 81.6°F
Kauai 81.3°F 79.2°F
Cape Coral 81.1°F 81.2°F
Kailua Kona 80.9°F 80.6°F
Galveston 80.8°F 78.8°F
Honolulu 80.7°F 80.6°F
Hawaii 80.6°F 80.5°F
Houston 80.4°F 78.8°F
Siesta Key 80.4°F 80.7°F
Hilo 80.3°F 79.7°F
Sarasota 80.2°F 80.5°F

Best time for vacation in New Castle

Sunniest months:
November 17 days
October 16 days
September 15 days
Warmest months:
July 85.5 °F
August 82.4 °F
June 79.8 °F
Warmest sea temp:
July 80.8 °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
April 3 days
Windiest months:
March 9.2 mph
April 8.8 mph
January 8.5 mph

New Castle on a weather map

New Castle
+36°F
SW 7 mph
Feels like: +28°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+73°F
+73°F
+63°F
+57°F
+75°F
+75°F
+68°F
+36°F
+59°F
+55°F
+66°F
+68°F
+64°F
+41°F
24 Hours Forecast
New Castle
Local time: 08:47
April 08, wednesday
0900
36°F
SW
7 mph
1200
46°F
W
6 mph
1500
54°F
NW
6 mph
1800
52°F
N
9 mph
2100
43°F
NW
9 mph
April 09, thursday
0000
37°F
NW
6 mph
0300
34°F
W
4 mph
0600
34°F
W
4 mph
Units of measurement: °C / °F