Honolulu, HI Climate & Monthly Averages
The climate of Honolulu
Honolulu has one of the steadier climates in our dataset. Average highs move only 4°C across the whole year - from 76°F (25°C) in February to 84°F (29°C) in August - so the practical difference between seasons here is rainfall and daylight, not warmth.
Climate quick facts
- Hottest month: August - highs near 84°F (29°C)
- Coldest month: February - highs near 76°F (25°C)
- Decade extremes (2015-2024): 88°F (31°C) high · 58°F (14°C) low
- Wettest month: December (7 rainy days) · Sunniest: June (12.8 h sun/day)
- Climate type: tropical wet-and-dry
- Annual swing: 4°C between the average warmest and coolest month · day to night: 5°C
- Average humidity: 73%
Temperatures through the year
Days and nights are about 5°C apart on average - narrower than all but 3% of the 3496 cities in our dataset. February bottoms out at 76°F (25°C) in daylight, 68°F (20°C) after dark. Warmth peaks in August: highs of 84°F (29°C), lows of 75°F (24°C). The gridded 2015-2024 daily record for this location tops out at 88°F (31°C) and bottoms at 58°F (14°C) - decade extremes, not all-time station records. Seven of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is November through May.
Rain, sun and snow
The wettest month is December (2.2 inches (55 mm) across 7 days) and the driest July. Between the average August and the average February lie 4°C, a narrower spread than about 88% of the cities we track.
How Honolulu compares
- The city sees 11.2 hours of sunshine on an average day - sunnier than any other city in our 3496-city dataset.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 77° | 68° | 7 | 1.4 in | 10.1 h/day | 11.0 h | 22% | 74% |
| February | 76° | 68° | 8 | 2.0 in | 10.2 h/day | 11.4 h | 30% | 73% |
| March | 77° | 69° | 10 | 2.1 in | 10.5 h/day | 12.0 h | 32% | 74% |
| April | 79° | 71° | 11 | 1.8 in | 11.6 h/day | 12.6 h | 36% | 73% |
| May | 80° | 72° | 9 | 1.6 in | 12.3 h/day | 13.1 h | 30% | 72% |
| June | 82° | 73° | 7 | 1.0 in | 12.8 h/day | 13.4 h | 23% | 71% |
| July | 83° | 75° | 7 | 0.8 in | 12.7 h/day | 13.3 h | 23% | 72% |
| August | 84° | 75° | 9 | 1.5 in | 12.3 h/day | 12.9 h | 29% | 72% |
| September | 84° | 75° | 8 | 1.1 in | 11.5 h/day | 12.2 h | 26% | 72% |
| October | 83° | 74° | 10 | 1.5 in | 10.7 h/day | 11.6 h | 31% | 74% |
| November | 80° | 72° | 6 | 1.2 in | 10.2 h/day | 11.1 h | 21% | 74% |
| December | 78° | 70° | 7 | 2.2 in | 9.8 h/day | 10.8 h | 24% | 75% |
Honolulu month by month
Average high and low for each month, with the bar showing where it sits in Honolulu's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 7 days
- Sunshine
- 10.1 h
- Daylight
- 11.0 h
February
- Rain
- 8 days
- Sunshine
- 10.2 h
- Daylight
- 11.4 h
March
- Rain
- 10 days
- Sunshine
- 10.5 h
- Daylight
- 12.0 h
April
- Rain
- 11 days
- Sunshine
- 11.6 h
- Daylight
- 12.6 h
May
- Rain
- 9 days
- Sunshine
- 12.3 h
- Daylight
- 13.1 h
June
- Rain
- 7 days
- Sunshine
- 12.8 h
- Daylight
- 13.4 h
July
- Rain
- 7 days
- Sunshine
- 12.7 h
- Daylight
- 13.3 h
August
- Rain
- 9 days
- Sunshine
- 12.3 h
- Daylight
- 12.9 h
September
- Rain
- 8 days
- Sunshine
- 11.5 h
- Daylight
- 12.2 h
October
- Rain
- 10 days
- Sunshine
- 10.7 h
- Daylight
- 11.6 h
November
- Rain
- 6 days
- Sunshine
- 10.2 h
- Daylight
- 11.1 h
December
- Rain
- 7 days
- Sunshine
- 9.8 h
- Daylight
- 10.8 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Honolulu
March through May
March through May settles into easy warmth here - highs near 79°F (26°C), nights near 70°F (21°C), and rain falls on around 30 of the 90 days. Daylight is generous - around 11.5 hours of sun a day.
June through August
June through August in Honolulu runs 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. Daylight is generous - around 12.6 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
September through November
Through September through November, Honolulu brings hot afternoons: 82°F (28°C) by day, 74°F (23°C) after dark, and expect showers on roughly 24 days across the season. Daylight is generous - around 10.8 hours of sun a day.
December through February
December through February in Honolulu is mild and 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. Daylight is generous - around 10.0 hours of sun a day.
Climate questions, answered
How hot does Honolulu get in summer?
How much do temperatures drop at night in Honolulu?
Does Honolulu have seasons?
How warm is Honolulu on average?
What should I wear in Honolulu?
Best time to visit Honolulu
Aim for November to January and June to July if you get the choice: the dry season is running but the afternoons are still bearable, and highs average 81°F (27°C) against roughly 7 wet days a month. For the same question asked the other way round, see where else is warm in November.
Pack for Honolulu with light clothing for the warm months and a compact umbrella or rain shell. August nights average 75°F (24°C), so evenings rarely match the afternoons.
Honolulu temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.