Haleakalā National Park
- Annual mean
- 23.5 °C
- Warmest month
- September
- Wettest month
- March
Detailed twelve-month profiles of temperature, precipitation, humidity, wind, and daylight.
At the representative location for Hawaiʻi Volcanoes National Park, monthly mean temperatures range from 19.9 to 22.8 °C (1991–2020). Compare precipitation, humidity, wind, and daylight for each month.
Comparing long-term temperature ranges and average daily precipitation across twelve months
Comparing twelve months of temperature limits, average daily precipitation, and calculated daylight
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 20.1 °C16.8° to 24.9° | 4.5 mm/day | 80.7% | 4.7 m/s | 11 hours |
| February | 19.9 °C16.4° to 24.7° | 4.5 mm/day | 80.4% | 5 m/s | 11.4 hours |
| March | 20.1 °C17° to 24.9° | 6.3 mm/day | 81% | 5.2 m/s | 11.9 hours |
| April | 20.5 °C17.7° to 24.7° | 5.6 mm/day | 80.8% | 5.5 m/s | 12.5 hours |
| May | 21.3 °C18.4° to 25.3° | 4 mm/day | 80.7% | 5.1 m/s | 12.9 hours |
| June | 21.8 °C19.1° to 25.2° | 3.2 mm/day | 81.1% | 5.4 m/s | 13.2 hours |
| July | 22.4 °C19.6° to 26.1° | 3.6 mm/day | 81.7% | 5.4 m/s | 13 hours |
| August | 22.8 °C20.1° to 26.5° | 3.7 mm/day | 81.4% | 5.4 m/s | 12.6 hours |
| September | 22.8 °C20.1° to 26.6° | 4.1 mm/day | 81.6% | 5.1 m/s | 12.1 hours |
| October | 22.5 °C19.9° to 26.4° | 4.1 mm/day | 82.2% | 5 m/s | 11.5 hours |
| November | 21.6 °C19° to 25.8° | 4.9 mm/day | 82.6% | 5.3 m/s | 11.1 hours |
| December | 20.6 °C17.9° to 25° | 4.9 mm/day | 82% | 5.2 m/s | 10.9 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparing long term temperature, precipitation, and wind averages to reveal monthly patterns across the park's mapped volcanic elevation.
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly temperature, precipitation, and daylight patterns across different geographic settings


Explore the map, landscapes, and protection details for Hawaiʻi Volcanoes National Park.