Hawaii Sea Temperature
USA · Updated hourly from satellite and marine data
Current Sea Temperature
27.0°C
Comfortable for snorkeling
Sea Surface Temperature Over the Year
Sea surface temperature in Hawaii ranges from about 26.9°C in June to 27.2°C in July. The water is warmest in late summer and coolest in winter.
Over the past 30 days, the average sea temperature in Hawaii has been 26.9°C.
Monthly Water Temperature Averages
| Month | Min | Average | Max |
|---|---|---|---|
| Jun | — | — | — |
| Jul | 26.6°C | 26.9°C | 27.3°C |
Based on recent forecast data collected for Hawaii.
Hawaii Water Temperature — Common Questions
What is the sea temperature in Hawaii today?
The current sea surface temperature in Hawaii is 27.0°C. Over the last 30 days, the average has been 26.9°C.
When is the water warmest in Hawaii?
The warmest sea temperatures in Hawaii occur in July, averaging around 27.2°C. Late summer typically brings the warmest water, ideal for snorkeling without a wetsuit.
When is the water coldest in Hawaii?
The coldest sea temperatures are in June, averaging around 26.9°C.
Can you swim in Hawaii today?
Yes — at 27.0°C the water is warm enough for comfortable swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Hawaii.
View Snorkel Forecast →