Honolulu weather by month & the best time to visit
United States · coastal city break · tropical — wet & dry seasons climate
The best time to visit Honolulu is June — its sunniest month (Sunshine Score 91/100), with July and May close behind. Honolulu averages about 3,113 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 37 mm of rain in June.
When is the best time to visit Honolulu?
For sunshine, the best time to visit Honolulu is June, then July and May. The dullest month is March (80/100, 94 mm of rain). The full month-by-month picture is in the table below.
How sunny is Honolulu?
Honolulu is one of the sunniest places on Earth: about 3,113 hours of sunshine a year. Conditions barely change through the year — only 11 Sunshine Score points separate June from March. It ranks #74 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 771 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 84 | 25° / 77°F | 22° / 72°F | 71 mm | 6 | 25° / 77°F |
| February | 82 | 25° / 77°F | 22° / 72°F | 82 mm | 8 | 25° / 77°F |
| March | 80 | 25° / 77°F | 22° / 72°F | 94 mm | 9 | 24° / 75°F |
| April | 88 | 26° / 79°F | 23° / 73°F | 54 mm | 10 | 25° / 77°F |
| May | 89 | 27° / 81°F | 23° / 73°F | 47 mm | 10 | 26° / 79°F |
| June | 91 | 27° / 81°F | 24° / 75°F | 37 mm | 11 | 26° / 79°F |
| July | 90 | 28° / 82°F | 25° / 77°F | 40 mm | 12 | 26° / 79°F |
| August | 89 | 28° / 82°F | 25° / 77°F | 44 mm | 12 | 27° / 81°F |
| September | 88 | 28° / 82°F | 25° / 77°F | 50 mm | 11 | 27° / 81°F |
| October | 84 | 28° / 82°F | 25° / 77°F | 73 mm | 9 | 27° / 81°F |
| November | 82 | 27° / 81°F | 24° / 75°F | 86 mm | 7 | 26° / 79°F |
| December | 80 | 25° / 77°F | 23° / 73°F | 93 mm | 6 | 26° / 79°F |
Sea temperature in Honolulu by month
The sea off Honolulu is warmest in August at around 27°C / 81°F, and coolest in March at 24°C / 75°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Honolulu compares month by month: Honolulu vs Kahului · Honolulu vs Lihue, Kauai · Honolulu vs Kailua-Kona · Honolulu vs Hilo · all comparisons
Honolulu: questions and answers
What kind of destination is Honolulu?
Honolulu is a coastal city break in United States with a tropical — wet & dry seasons climate — the sea reaches 27°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Honolulu get a year?
Honolulu gets about 3,113 hours of sunshine a year, at its best around June.
When is the best time to visit Honolulu?
The sunniest time to visit Honolulu is June, when the Sunshine Score peaks at 91/100 (with July and May close behind). Expect daytime highs around 27°C / 81°F.
What is the least sunny month in Honolulu?
March is the least sunny month in Honolulu, scoring 80/100 with about 94 mm of rain.
What is the sea temperature in Honolulu?
The sea in Honolulu ranges from about 24°C (March) to 27°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Honolulu?
The typical midday UV index in Honolulu peaks around 12 (extreme) in July, easing to about 6 (high) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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