World Resorts USA New Castle Weather

New Castle Sea Temperature in August

Average sea water temperature in August:
+80.0°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:
2025
2024
2023

The average sea water temperature in August of 2025 was 79.6°F. The highest and lowest sea temperatures during the month were 84.0°F and 75.9°F.

Monthly sea water temperature in New Castle, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Key West 88.8°F 87.8°F
Naples 88.7°F 87.0°F
St. Petersburg 88.7°F 86.9°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F
Cocoa Beach 86.8°F 84.5°F
Panama City Beach 86.2°F 86.8°F
Destin 86.0°F 86.9°F
Jacksonville 84.9°F 82.9°F
Orlando 84.9°F 83.4°F
Daytona Beach 84.6°F 83.1°F
Tybee Island 84.5°F 84.0°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 80.8 °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
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
+75°F
N 9 mph
Feels like: +77°F
Precip.: 3%
Places in USA:
Name
°F
+70°F
+79°F
+84°F
+63°F
+82°F
+84°F
+75°F
+79°F
+77°F
+66°F
+57°F
+79°F
+77°F
+81°F
+73°F
24 Hours Forecast
New Castle
Local time: 23:44
July 01, wednesday
0000
75°F
N
9 mph
0300
72°F
N
7 mph
0600
72°F
NE
7 mph
0900
81°F
NE
9 mph
1200
97°F
NE
7 mph
1500
95°F
NE
7 mph
1800
95°F
NE
7 mph
2100
84°F
N
6 mph
Units of measurement: °C / °F