Honolulu weather by month
2006-2025, 20 years of records · Not a forecast
Hawaii is tropical, yet its rain falls in winter. The wet season runs roughly October to April, while May to September is drier, with trade winds blowing on most days. Summer is the best beach window, and humpback whales visit Hawaiian waters in winter. Hurricane season is June to November, though real hurricanes are rare in Hawaii. Honolulu itself is much drier than the mountains behind it, so on a wet day it helps to stay near the coast. In winter a thin windbreaker also helps.
December to February gave the best mix of comfortable warmth and few rain days in Honolulu. To dodge the rain, June (2 rain days) was the stretch to look at, not March (7).
Each month in a line
| JanuaryGood | hot | 27° / 19° |
|---|---|---|
| FebruaryGood | properly hot, occasional rain | 27° / 20° |
| March | hot, occasional rain | 28° / 20° |
| April | properly hot, occasional rain | 29° / 21° |
| May | hot | 29° / 22° |
| June | properly hot | 31° / 23° |
| July | very hot | 31° / 24° |
| August | seriously hot, little rain | 32° / 24° |
| September | very hot, little rain | 31° / 24° |
| October | hot, only a little rain | 31° / 23° |
| November | properly hot, little rain | 29° / 22° |
| DecemberGood | hot, rain here and there | 28° / 21° |
The 12 months in numbers
The thermometer stayed in a narrow band, from 27°C in January to 32°C in August.
| Month | High | Low | Rain days | Rainfall | Humidity | Clear days | Sea |
|---|---|---|---|---|---|---|---|
| January | 27° | 19° | 5 days | 35mm | 75% | 11 days | 25° |
| February | 27° | 20° | 6 days | 49mm | 74% | 8 days | 25° |
| March | 28° | 20° | 7 days | 61mm | 75% | 5 days | 25° |
| April | 29° | 21° | 6 days | 36mm | 74% | 4 days | 25° |
| May | 29° | 22° | 3 days | 26mm | 72% | 7 days | 25° |
| June | 31° | 23° | 2 days | 16mm | 72% | 6 days | 26° |
| July | 31° | 24° | 3 days | 15mm | 73% | 6 days | 26° |
| August | 32° | 24° | 3 days | 28mm | 72% | 8 days | 27° |
| September | 31° | 24° | 3 days | 19mm | 72% | 9 days | 27° |
| October | 31° | 23° | 5 days | 36mm | 74% | 8 days | 27° |
| November | 29° | 22° | 5 days | 44mm | 75% | 8 days | 27° |
| December | 28° | 21° | 6 days | 71mm | 77% | 9 days | 26° |
Enter your dates to see how that stretch went in each of the past 20 years.
Common questions
When is the best time to visit Honolulu?
December to February gave the best mix of comfortable warmth and few rain days in Honolulu. To dodge the rain, June (2 rain days) was the stretch to look at, not March (7).
Which month is driest in Honolulu?
June. Over 2006-2025 it averaged 2 rain days and 16 mm of rain.
Which month is warmest in Honolulu?
August, with highs averaging 32°C and lows 24°C. The thermometer stayed in a narrow band, from 27°C in January to 32°C in August.