World Resorts USA Hilo Weather

Hilo Sea Temperature in May

Average sea water temperature in May:
+77.3°F
Minimum sea water temperature in May: 79.0°F
Maximum sea water temperature in May: 75.0°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 77.7°F. The highest and lowest sea temperatures during the month were 78.3°F and 77.2°F.

Monthly sea water temperature in Hilo, °F

Which USA resorts have warmest sea in May?

Place name May 2025 May 2024
Everglades 84.5°F 84.6°F
Key West 83.5°F 84.6°F
Naples 83.5°F 83.8°F
Cape Coral 83.4°F 83.6°F
Tampa 82.7°F 82.5°F
Sarasota 82.7°F 82.9°F
St. Petersburg 82.6°F 82.4°F
Clearwater Beach 82.6°F 82.5°F
Miami 82.6°F 83.3°F
Siesta Key 82.5°F 82.6°F
Miami Beach 82.4°F 83.0°F
Fort Lauderdale 81.1°F 81.7°F
West Palm Beach 81.1°F 81.5°F
Corpus Christi 80.9°F 81.0°F
Pensacola 80.1°F 79.4°F
South Padre Island 80.0°F 81.1°F
Galveston Island 79.8°F 79.9°F
Orange Beach 79.8°F 78.7°F
Galveston 79.6°F 79.5°F
Pensacola Beach 79.6°F 78.7°F

Best time for vacation in Hilo

Sunniest months:
January 17 days
October 15 days
June 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
February 73.3 °F
April 73.3 °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
+72°F
SW 3 mph
Feels like: +77°F
Precip.: 100%
Places in USA:
Name
°F
+36°F
+75°F
+75°F
+91°F
+84°F
+66°F
+72°F
+72°F
+32°F
+66°F
+63°F
+61°F
+59°F
+75°F
+39°F
24 Hours Forecast
Hilo
Local time: 14:10
March 18, wednesday
1500
72°F
SW
3 mph
1800
72°F
SE
1 mph
2100
72°F
SE
1 mph
March 19, thursday
0000
70°F
N
1 mph
0300
70°F
NE
1 mph
0600
70°F
NW
1 mph
0900
73°F
NW
3 mph
1200
75°F
NW
7 mph
Units of measurement: °C / °F