Best time to swim in Hawaii Sea temperature by month
Do you want to go to the seaside in Hawaii? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in Hawaii.
Swimming in Hawaii by month
Discover swimming conditions in detail in Hawaii by month below. Click on the links for each month to see details about the sea temperature in the cities of: Honolulu (Oahu), Kauai (Garden Isle), Maui, Captain Cook and Hana.
| Month | Average Sea temperature | Our opinion |
|---|---|---|
| January | 76°F to 77°F | pleasant swimming |
| February | 76°F to 77°F | pleasant swimming |
| March | 75°F to 77°F | pleasant swimming |
| April | 76°F to 78°F | pleasant swimming |
| May | 77°F to 79°F | pleasant swimming |
| June | 78°F to 80°F | ideal swimming* |
| July | 79°F to 80°F | ideal swimming* |
| August | 79°F to 80°F | ideal swimming |
| September | 79°F to 81°F | ideal swimming |
| October | 79°F to 81°F | ideal swimming |
| November | 78°F to 79°F | ideal swimming* |
| December | 77°F to 78°F | pleasant swimming |
* in at least part of the area.
Where and when should you swim in Hawaii?
Other cities and places in Hawaii:
Water temperatures in Hawaii over the entire year
On this chart, we show you the variation of the average sea water temperature in Hawaii for the cities of: Honolulu (Oahu), Kauai (Garden Isle), Maui, Captain Cook and Hana.