Weather in Honolulu
Live weather and 7-day forecast for Honolulu, United States, followed by what to expect in each month of the year.
Sunrise 06:31 Sunset 18:03 Daylight 11h 32m Sun times →
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Forecast data from Open-Meteo
Climate in Honolulu: month by month
Averaged over 2023–2025, the warmest month in Honolulu is August, with highs around 30 °C (86 °F) and lows around 23 °C (74 °F); the coolest is February, with highs around 26 °C (78 °F) and lows around 19 °C (67 °F). Temperatures barely change through the year — the monthly averages stay within 4 °C of each other.
Honolulu gets about 540 mm (21 in) of precipitation a year. The wettest month is January (91 mm over about 11 days) and the driest is September (18 mm).
| Month | Avg high | Avg low | Precipitation (in) | Wet days | Daylight |
|---|---|---|---|---|---|
| January | 79° | 67° | 3.6 | 11 | 10h 59m |
| February | 78° | 67° | 2.0 | 9 | 11h 27m |
| March | 79° | 68° | 1.8 | 13 | 12h 1m |
| April | 80° | 69° | 3.2 | 19 | 12h 38m |
| May | 81° | 71° | 3.2 | 15 | 13h 9m |
| June | 83° | 72° | 0.7 | 8 | 13h 25m |
| July | 85° | 73° | 0.7 | 6 | 13h 18m |
| August | 86° | 74° | 0.9 | 6 | 12h 52m |
| September | 86° | 74° | 0.7 | 7 | 12h 16m |
| October | 85° | 73° | 1.1 | 10 | 11h 40m |
| November | 82° | 71° | 1.4 | 9 | 11h 7m |
| December | 80° | 69° | 1.8 | 8 | 10h 51m |
Averages of daily values from the ERA5 reanalysis for 2023–2025 at Honolulu's coordinates (model elevation 4 m), via Open-Meteo (CC BY 4.0). Three recent years are not a 30-year climate normal; reanalysis smooths local extremes and tends to count more light-rain days than a rain gauge would. Daylight is sunrise to sunset on the 15th of each month.
Weather questions for Honolulu
What is the hottest month in Honolulu?
August, with average highs of 30 °C (86 °F) and lows of 23 °C (74 °F) over 2023–2025. The coolest month is February, averaging 26 °C (78 °F) by day and 19 °C (67 °F) at night.
What is the rainiest month in Honolulu?
January, with about 91 mm of precipitation on roughly 11 days. The driest month is September (18 mm), and the yearly total is around 540 mm.
When is the weather mildest in Honolulu?
Going by the averages, December–April are the months with average daytime highs between 18 °C and 27 °C (64–81 °F) — warm but not hot. January is the month most likely to bring rain.
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About this forecast
The live forecast comes from Open-Meteo, which blends models from national weather services and is fetched fresh in your browser on each visit. Times in the hourly outlook are Honolulu local time (Pacific/Honolulu).