World Resorts USA New Castle Weather

New Castle Sea Temperature in July

Average sea water temperature in July:
+80.7°F
Minimum sea water temperature in July: 85.5°F
Maximum sea water temperature in July: 73.0°F

Daily sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 80.2°F. The highest and lowest sea temperatures during the month were 82.0°F and 76.1°F.

Monthly sea water temperature in New Castle, °F

Which USA resorts have warmest sea in July?

Place name July 2026 July 2025
Key West 88.8°F 86.7°F
Clearwater Beach 88.6°F 87.1°F
St. Petersburg 88.4°F 87.0°F
Tampa 88.2°F 86.8°F
Sarasota 88.1°F 86.9°F
Siesta Key 88.1°F 86.9°F
Naples 88.0°F 86.6°F
Miami 87.6°F 86.3°F
New Orleans 87.2°F 87.4°F
Miami Beach 87.1°F 86.0°F
Fort Lauderdale 86.6°F 85.0°F
Houston 86.5°F 86.3°F
Pensacola 86.5°F 86.9°F
Panama City Beach 86.2°F 86.3°F
Destin 86.2°F 86.3°F
West Palm Beach 86.1°F 84.6°F
Charleston (SC) 85.6°F 84.7°F
Corpus Christi 85.4°F 85.3°F
Isle of Palms 85.3°F 84.3°F
Jacksonville 85.0°F 80.4°F

Best time for vacation in New Castle

Sunniest months:
November 17 days
October 16 days
June 15 days
Warmest months:
July 85.5 °F
August 82.4 °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
+84°F
N 11 mph
Feels like: +93°F
Precip.: 10%
Places in USA:
Name
°F
+88°F
+91°F
+77°F
+100°F
+77°F
+90°F
+72°F
+91°F
+82°F
+73°F
+64°F
+77°F
+93°F
+95°F
+84°F
24 Hours Forecast
New Castle
Local time: 12:55
July 21, tuesday
1500
91°F
NE
13 mph
1800
91°F
SE
11 mph
2100
70°F
NE
6 mph
July 22, wednesday
0000
70°F
N
7 mph
0300
70°F
NE
6 mph
0600
72°F
NE
8 mph
0900
77°F
NE
10 mph
1200
84°F
E
11 mph
Units of measurement: °C / °F