Current sea water temperature:
+77.4°F
| Minimum sea water temperature in April: | 79.0°F |
| Maximum sea water temperature in April: | 74.1°F |
| Average sea water temperature in April: | 76.7°F |
| more information | |
14 days
forecast
forecast
| Honolulu |
monthly
weather
weather
| Honolulu |
Sea water temperature for the last 10 days:
| April 26 | 77.4°F | April 21 | 76.8°F |
| April 25 | 77.5°F | April 20 | 76.8°F |
| April 24 | 77.7°F | April 19 | 77.0°F |
| April 23 | 77.9°F | April 18 | 77.0°F |
| April 22 | 77.5°F | April 17 | 77.4°F |
Monthly sea water temperature, °F
When is the warmest sea in Honolulu?
Based on the data about daily sea water temperature for the last three years the warmest sea in Honolulu was noticed in September, October and August.
Monthly Sea Temperatures in Honolulu, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 80.6°F. The highest and lowest sea temperatures during the month were 81.5°F and 80.1°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 80.7°F. The highest and lowest sea temperatures during the month were 81.1°F and 79.9°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 80.8°F. The highest and lowest sea temperatures during the month were 81.3°F and 79.9°F.
current
weather
weather
| Honolulu |
weather in
April
April
| Honolulu |
Best time for vacation in Honolulu
Honolulu on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Honolulu
Local time: 07:53
April 26, sunday
0900
75°F
W
14 mph
14 mph
1200
77°F
W
13 mph
13 mph
1500
77°F
SW
17 mph
17 mph
1800
75°F
SW
16 mph
16 mph
2100
75°F
SW
14 mph
14 mph
April 27, monday
0000
73°F
SW
16 mph
16 mph
0300
73°F
W
14 mph
14 mph
0600
73°F
W
12 mph
12 mph
