Honolulu, HI Climate & Monthly Averages
The climate of Honolulu
Weather in Honolulu is shaped by its tropical wet-and-dry climate - expect year-round warmth split between a rainy season and a pronounced dry season. August afternoons typically reach 84°F (29°C), while February highs hover near 76°F (25°C). Annual precipitation averages 18.2 inches (463 mm) over about 99 rainy days.
Climate quick facts
- Hottest month: August - highs near 84°F (29°C)
- Coldest month: February - highs near 76°F (25°C)
- Record high: 88°F (31°C) · Record low: 58°F (14°C) (2015–2024)
- Wettest month: December (7 rainy days) · Sunniest: June (12.8 h sun/day)
- Climate type: tropical wet-and-dry - year-round warmth split between a rainy season and a pronounced dry season
Temperatures through the year
The warmest stretch of the year centers on August. Highs average 84°F (29°C) and overnight lows stay near 75°F (24°C). The coolest month is February, with typical highs of 76°F (25°C) and lows around 68°F (20°C). Based on 2015–2024 weather data, temperatures have reached as high as 88°F (31°C) and dropped as low as 58°F (14°C).
Rain, sun and snow
December is usually the wettest month. It brings about 2.2 inches (55 mm) of rain over 7 days, while July is the driest. June brings the most sunshine, averaging 12.8 hours of sun a day.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 77° | 68° | 7 | 1.4 in | 10.1 h/day | 74% |
| February | 76° | 68° | 8 | 2.0 in | 10.2 h/day | 73% |
| March | 77° | 69° | 10 | 2.1 in | 10.5 h/day | 74% |
| April | 79° | 71° | 11 | 1.8 in | 11.6 h/day | 73% |
| May | 80° | 72° | 9 | 1.6 in | 12.3 h/day | 72% |
| June | 82° | 73° | 7 | 1.0 in | 12.8 h/day | 71% |
| July | 83° | 75° | 7 | 0.8 in | 12.7 h/day | 72% |
| August | 84° | 75° | 9 | 1.5 in | 12.3 h/day | 72% |
| September | 84° | 75° | 8 | 1.1 in | 11.5 h/day | 72% |
| October | 83° | 74° | 10 | 1.5 in | 10.7 h/day | 74% |
| November | 80° | 72° | 6 | 1.2 in | 10.2 h/day | 74% |
| December | 78° | 70° | 7 | 2.2 in | 9.8 h/day | 75% |
Honolulu month by month
Honolulu weather in January
January brings highs around 77°F (25°C), lows near 68°F (20°C), about 7 wet days.
Honolulu weather in February
February brings highs around 76°F (25°C), lows near 68°F (20°C), about 8 wet days - typically the coldest month of the year in Honolulu.
Honolulu weather in March
March brings highs around 77°F (25°C), lows near 69°F (20°C), about 10 wet days.
Honolulu weather in April
April brings highs around 79°F (26°C), lows near 71°F (21°C), about 11 wet days.
Honolulu weather in May
May brings highs around 80°F (27°C), lows near 72°F (22°C), about 9 wet days.
Honolulu weather in June
June brings highs around 82°F (28°C), lows near 73°F (23°C), about 7 wet days - typically the sunniest month of the year in Honolulu.
Honolulu weather in July
July brings highs around 83°F (29°C), lows near 75°F (24°C), about 7 wet days - typically the driest month of the year in Honolulu.
Honolulu weather in August
August brings highs around 84°F (29°C), lows near 75°F (24°C), about 9 wet days - typically the hottest month of the year in Honolulu.
Honolulu weather in September
September brings highs around 84°F (29°C), lows near 75°F (24°C), about 8 wet days.
Honolulu weather in October
October brings highs around 83°F (28°C), lows near 74°F (23°C), about 10 wet days.
Honolulu weather in November
November brings highs around 80°F (27°C), lows near 72°F (22°C), about 6 wet days.
Honolulu weather in December
December brings highs around 78°F (26°C), lows near 70°F (21°C), about 7 wet days - typically the wettest month of the year in Honolulu.
Seasons in Honolulu
March through May
March through May in Honolulu is pleasantly warm, with daytime highs averaging 79°F (26°C) and nights around 70°F (21°C); expect showers on roughly 30 days across the season.
June through August
June through August in Honolulu is hot, with daytime highs averaging 83°F (29°C) and nights around 74°F (24°C); expect showers on roughly 23 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
September through November
September through November in Honolulu runs hot, with daytime highs averaging 82°F (28°C) and nights around 74°F (23°C); expect showers on roughly 24 days across the season.
December through February
December through February in Honolulu is pleasantly warm, with daytime highs averaging 77°F (25°C) and nights around 69°F (20°C); expect showers on roughly 23 days across the season.
Climate questions, answered
What is the average temperature in Honolulu?
Is Honolulu hot in summer?
Is Honolulu cold in winter?
How many rainy days does Honolulu get in a year?
Best time to visit Honolulu
The best time to visit Honolulu is generally November to January and June to July, when these months combine the driest skies with the most comfortable heat. Daytime temperatures in that window typically sit near 81°F (27°C).
Pack for Honolulu with a compact umbrella or rain shell - showers are a regular feature. Evenings can feel noticeably cooler than afternoons - August nights average 75°F (24°C).
Honolulu temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.