Honolulu Weather in October
United States · Tropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
October in Honolulu sees average temperatures ranging from a low of 22.8°C (73.0°F) to a high of 28.6°C (83.5°F), with a mean of 25.2°C (77.4°F). Compared to the annual average of 24.1°C (75.4°F), this month is 1.1°C warmer than the yearly norm. Precipitation averages 31.1mm, making it approximately 8.0mm drier than the monthly average of 39.0mm. The city receives an average of 10.7 hours of sunshine per day during October, with relative humidity averaging 73.1%. Wind speeds reach an average maximum of 20.3 km/h. For travelers, this month offers a temperature experience in Honolulu, with drier-than-average conditions compared to the rest of the year.
Honolulu sounds like a year-round summer, but the rain patterns matter. I packed for beaches in November and got three wet days — the windward side gets 4x the rain of Waikiki. The sweet spot is April-May: 26°C, low rain, fewer tourists. December-March brings the big surf and whale season, plus occasional showers. Pack reef-safe sunscreen (mandatory by law), rash guard for snorkeling, and a light rain shell for windward trips. Summer (June-August) is hotter and more humid but trade winds keep it manageable. Skip spring break crowds in March — Waikiki gets packed.
October vs Adjacent Months
| Metric | September | October | November |
|---|---|---|---|
| Mean Temp | 25.8°C (78.4°F) | 25.2°C (77.4°F) | 24.3°C (75.7°F) |
| Rainfall | 15.5mm | 31.1mm | 30.9mm |
| Sunshine | 11.6 hrs | 10.7 hrs | 10.2 hrs |
| Humidity | 69.8% | 73.1% | 73.1% |
| Wind | 22.5 km/h | 20.3 km/h | 22.7 km/h |
| Rainy Days | 17.0 | 20.2 | 17.4 |
Seasonal Context
October falls in Autumn in the Northern Hemisphere. Autumn sees temperatures gradually cooling from summer highs. For travelers visiting Honolulu in October, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Honolulu in October?
The average temperature in Honolulu during October ranges from 22.8°C (73.0°F) to 28.6°C (83.5°F), with a mean of 25.2°C (77.4°F).
How much does it rain in Honolulu in October?
Honolulu receives an average of 31.1mm of precipitation in October, spread across approximately 20.2 rainy days.
What should I pack for Honolulu in October?
Based on October weather data, pack lightweight, breathable clothing, sunscreen, and a hat.
Is October a good time to visit Honolulu?
October is a good time to visit Honolulu, with comfortable temperatures and manageable rainfall.
Other Months for Honolulu
Cities with Similar October Climate (Tropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 21.31°, -157.86°. Timezone: Pacific/Honolulu. Last updated: 2026-07-30.