World Resorts USA Hilo Weather

Hilo Sea Temperature in October

Average sea water temperature in October:
+80.0°F
Minimum sea water temperature in October: 82.0°F
Maximum sea water temperature in October: 77.7°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 80.3°F. The highest and lowest sea temperatures during the month were 80.8°F and 79.7°F.

Monthly sea water temperature in Hilo, °F

Which USA resorts have warmest sea in October?

Place name October 2025 October 2024
South Padre Island 84.0°F 82.4°F
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
Islamorada 83.1°F 82.9°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
Sanibel Island 81.6°F 81.3°F
Kauai 81.3°F 79.2°F
Galveston Island 81.1°F 79.2°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
Siesta Key 80.4°F 80.7°F

Best time for vacation in Hilo

Sunniest months:
January 18 days
October 15 days
September 14 days
Warmest months:
September 78.1 °F
August 78.0 °F
October 77.9 °F
Warmest sea temp:
September 80.4 °F
October 80.0 °F
August 79.8 °F
Coldest months:
March 73.2 °F
April 73.3 °F
February 73.5 °F
Rainiest months:
March 6 days
November 5 days
February 5 days
Windiest months:
March 8.5 mph
April 8.5 mph
August 8.2 mph

Hilo on a weather map

Hilo
+70°F
S 3 mph
Feels like: +70°F
Precip.: 0%
Places in USA:
Name
°F
+34°F
+75°F
+75°F
+48°F
+61°F
+57°F
+61°F
+68°F
+30°F
+66°F
+48°F
+55°F
+52°F
+57°F
+32°F
24 Hours Forecast
Hilo
Local time: 08:18
December 31, wednesday
0900
70°F
S
3 mph
1200
73°F
SW
7 mph
1500
72°F
SW
8 mph
1800
70°F
SW
5 mph
2100
70°F
SW
6 mph
January 01, thursday
0000
68°F
S
4 mph
0300
66°F
S
3 mph
0600
66°F
S
4 mph
Units of measurement: °C / °F