Haleakalā National Park
- Annual mean
- 23.5 °C
- Warmest month
- September
- Wettest month
- March
Long-term climate data derived from representative coastal coordinates for regional atmosphere analysis
Annual cycles of temperature, precipitation, wind speed, and relative humidity for Hawaiian Islands Humpback Whale National Marine Sanctuary are modeled here using monthly normals from 1991 to 2020. These measurements characterize the representative climate at a single reference point within the sanctuary. Data provides a longitudinal baseline for understanding atmospheric conditions, distinct from daily weather forecasts or local microclimate variations across the marine protected area.
Analysis of average minimum and maximum temperature alongside monthly precipitation normals across twelve months
Twelve month comparison of temperature bounds, precipitation rates, wind, humidity, and daylight
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 23.2 °C20.5° to 25.8° | 2.1 mm/day | 73.4% | 5.3 m/s | 10.9 hours |
| February | 22.9 °C19.8° to 25.7° | 2.1 mm/day | 73.4% | 5.7 m/s | 11.3 hours |
| March | 23.1 °C20.3° to 26° | 2.6 mm/day | 73.5% | 6 m/s | 11.9 hours |
| April | 23.7 °C21° to 26.3° | 1.5 mm/day | 73% | 6.4 m/s | 12.5 hours |
| May | 24.5 °C22° to 27.3° | 1.3 mm/day | 72.6% | 5.9 m/s | 13 hours |
| June | 25.3 °C23.3° to 27.8° | 1 mm/day | 72.4% | 6.8 m/s | 13.3 hours |
| July | 25.8 °C23.8° to 28.4° | 1 mm/day | 73.1% | 7 m/s | 13.1 hours |
| August | 26.3 °C24.3° to 28.7° | 1.1 mm/day | 72.7% | 6.8 m/s | 12.7 hours |
| September | 26.4 °C24.2° to 28.8° | 1.3 mm/day | 72.2% | 6 m/s | 12.1 hours |
| October | 26 °C23.8° to 28.6° | 1.6 mm/day | 73% | 5.8 m/s | 11.5 hours |
| November | 25 °C22.7° to 27.7° | 2 mm/day | 73.9% | 6.2 m/s | 11 hours |
| December | 23.9 °C21.6° to 26.4° | 2 mm/day | 73.9% | 6 m/s | 10.8 hours |
Comparative warmest, coolest, wettest, and windiest monthly averages across stored climatology records
Interactive climate map
Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.
Analyze monthly weather patterns, temperature rhythms, and precipitation normals across diverse protected landscapes.


Trace the extensive boundaries and marine terrain of the Hawaiian Islands Humpback Whale National Marine Sanctuary through the MoriAtlas mapping suite. This detailed view offers context on the sanctuary's role in Pacific ocean conservation, highlighting the distribution of coral reef habitats and seasonal whale populations across the Hawaiian islands.