Haleakala National Park weather in October
October in Haleakala National Park: nice, a little rain, with clean air — an excellent time to visit.
#3 of 12 months in Haleakala National Park · #83 of 604 destinations to visit in October · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Haleakala National Park climate normals — October
| Daytime high | 17°C / 63°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Feels like (high) | 16°C / 61°F | |
| Rainfall | 70 mm / 2.8 in | 🌦 some rain |
| Rainy days | 17 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 11°C / 52°F | |
| Sunshine | 10.5 h/day | |
| Daylight | 11.7 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 31 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Haleakala National Park?
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Haleakala National Park in October — FAQ
- Is October a good time to visit Haleakala National Park?
- October in Haleakala National Park: nice, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for Haleakala National Park on SeasonMap's comfort score (88/100).
- What is the weather like in Haleakala National Park in October?
- In October, Haleakala National Park averages a daily high of 17°C and a low of 13.2°C, with about 70.1 mm of rain over roughly 16.8 rainy days.
- What is the air quality in Haleakala National Park in October?
- Haleakala National Park has a mean US Air Quality Index of about 31 in October.