Hawaii, USA
Honolulu (Waikiki) weather by month
Honolulu (Waikiki) is warmest in August, with average highs of 32°C, and coolest in January at 27°C. The sea ranges from about 25°C to 27°C, warmest in September.
- WarmestAugust32°C average high
- CoolestJanuary27°C average high
- Warmest seaSeptember27°C on average
- From Dublin≈ 14h 15mdirect, estimated
Honolulu (Waikiki) through the year
Beach weather (highs of 25°C or more and fewer than seven rainy days) lasts all year.
Month by month
| Month | High | Low | Sea | Rainy days | Rain | Sky | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 27° | 20° | 25° | 4 | 34 mm | Some cloud | 98% |
| February | 27° | 20° | 25° | 5 | 40 mm | Some cloud | 97% |
| March | 28° | 20° | 25° | 6 | 48 mm | Some cloud | 98% |
| April | 29° | 21° | 25° | 5 | 37 mm | Some cloud | 100% |
| May | 30° | 22° | 25° | 4 | 36 mm | Some cloud | 100% |
| June | 31° | 23° | 26° | 2 | 28 mm | Some cloud | 100% |
| July | 31° | 24° | 26° | 2 | 26 mm | Some cloud | 100% |
| August | 32° | 24° | 27° | 3 | 28 mm | Some cloud | 100% |
| September | 32° | 24° | 27° | 2 | 24 mm | Some cloud | 100% |
| October | 31° | 23° | 27° | 4 | 37 mm | Some cloud | 100% |
| November | 29° | 22° | 26° | 4 | 33 mm | Some cloud | 100% |
| December | 28° | 21° | 26° | 5 | 45 mm | Some cloud | 100% |
Shaded rows: beach weather (all year). Rainy days = days with 1 mm of rain or more, as weather stations count them. Sky = average cloud cover. How we measure
Flying time
Estimated from the distance for a direct flight. Real schedules vary, and many long-haul trips need a connection.
- From Dublin≈ 14h 15m
- From Cork≈ 14h 15m
- From Belfast≈ 14h
- From London≈ 14h 45m
- From Manchester≈ 14h 30m
- From Glasgow≈ 14h
Air: Copernicus ERA5-Land, 2011–2025, for the land nearest Honolulu (Waikiki) (14 m), matched to the official 1991-2020 averages for Honolulu airport (NOAA). Sea: Copernicus ERA5 sea surface temperature, 2022–2025. Averages describe past weather, not a forecast.