Maui Sea Temperature
USA · Updated hourly from satellite and marine data
Current Sea Temperature
27.2°C
Comfortable for snorkeling
Sea Surface Temperature Over the Year
Sea surface temperature in Maui ranges from about 24.6°C in March to 28.0°C in September. The water is warmest in late summer and coolest in winter.
Over the past 30 days, the average sea temperature in Maui has been 26.6°C.
Monthly Water Temperature Averages
| Month | Min | Average | Max |
|---|---|---|---|
| Sep | — | — | — |
| Oct | 27.6°C | 28.0°C | 28.5°C |
| Nov | 26.4°C | 27.5°C | 28.4°C |
| Dec | 26.2°C | 26.5°C | 27.0°C |
| Jan | 25.5°C | 26.1°C | 26.7°C |
| Feb | 25.0°C | 25.4°C | 25.9°C |
| Mar | 24.6°C | 25.0°C | 25.5°C |
| Apr | 24.2°C | 24.6°C | 25.1°C |
| May | 24.3°C | 25.2°C | 26.3°C |
| Jun | 26.0°C | 26.4°C | 26.8°C |
Based on recent forecast data collected for Maui.
Maui Water Temperature — Common Questions
What is the sea temperature in Maui today?
The current sea surface temperature in Maui is 27.2°C. Over the last 30 days, the average has been 26.6°C.
When is the water warmest in Maui?
The warmest sea temperatures in Maui occur in September, averaging around 28.0°C. Late summer typically brings the warmest water, ideal for snorkeling without a wetsuit.
When is the water coldest in Maui?
The coldest sea temperatures are in March, averaging around 24.6°C.
Can you swim in Maui today?
Yes — at 27.2°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 Maui.
View Snorkel Forecast →