Very hot in Oct
34°C average high
avg high · 22° at night
25°C+ on almost every day · often 35°C+
Hawaii, USA
Honolulu (Waikiki) weather in October
Is it warm? Yes. October in Honolulu (Waikiki) is hot: afternoons average 31°C and nights 23°C. Most days (80%) peak between 30°C and 32°C.
Hot · average high
31°C
25°C or more on almost every day.
- Average low23°overnight
- Sea27°average, 2022–2025
- Rainy days437 mm in the month
- SkySome cloud37% cloud · 52% clear days
How warm it really gets
Every October afternoon from 2011–2025: 465 days. Most (80%) peaked between 30° and 32°.
October, year by year
The average October high in each year. The warmest, 2019, averaged 32°C; the coolest, 2011, 30°C.
Compared with home
Average October highs. Expect rain on about 4 days (37 mm in a typical month).
- Honolulu (Waikiki)31°
- London16°
- Cork15°
- Dublin15°
- Manchester14°
- Belfast14°
- Glasgow14°
Warmer in October, not much further
Flying times are estimates from Dublin; Honolulu (Waikiki) is about 14h 15m.
Very hot in Oct
33°C average high
avg high · 25° at night
25°C+ on almost every day
Hot in Oct
32°C average high
avg high · 23° at night
25°C+ on almost every day
Air: Copernicus ERA5-Land, 2011–2025, matched to the official averages for Honolulu airport. Sea: Copernicus ERA5, 2022–2025. Rainy days = days with 1 mm of rain or more, as weather stations count them. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology