Hilo weather in October
October in Hilo: hot, soaked, with clean air — one of the best months to visit.
#2 of 12 months in Hilo · #334 of 604 destinations to visit in October · comfort 74/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Hilo climate normals — October
| Daytime high | 26°C / 80°F | 🥵 hot |
|---|---|---|
| Nighttime low | 21°C / 70°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 165 mm / 6.5 in | ⛈ soaked |
| Rainy days | 22 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 21°C / 69°F | |
| Sunshine | 10.5 h/day | |
| Daylight | 11.7 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 19 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Hilo?
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Hilo in October — FAQ
- Is October a good time to visit Hilo?
- October in Hilo: hot, soaked, with clean air — one of the best months to visit. It ranks #2 of 12 months for Hilo on SeasonMap's comfort score (74/100).
- What is the weather like in Hilo in October?
- In October, Hilo averages a daily high of 26.4°C and a low of 21.2°C, with about 164.8 mm of rain over roughly 22 rainy days.
- What is the air quality in Hilo in October?
- Hilo has a mean US Air Quality Index of about 19 in October.