Temperature
Hot by day, warm at night.
87°Ftypical Aug high
Big Island
United States · North America
Big Island is most comfortable in the drier months around December to March. Typical daytime highs run about 81-87°F year-round. The climate is warm and humid. Rain stays limited most of the year.
Best time to go
12 mo · Typical year
Temperature range
68°F to 87°F
Rain
4 days/mo
Sunshine
6.9 h/day
Humidity feel
Humid year-round
When to visit
Month-by-month fit
Precipitation
Rainfall is lower than usual here.
16%wet-day frequency
AmountWet-day chance
Sunshine
Sunny skies.
7.9 hAug sunshine
Heat & humidity by month
Very humid air is a major factor this month.
Very humidAug heat feel
Air-feel chart data is unavailable for this destination. Use the selected-month dew point, temperature, rain, and sunshine context together rather than treating any one metric as total comfort.
Sea temperature
80°Aug sea temp
More detailIncludes sky and daypart comfort
Cloud cover
Partly cloudy across the month.
58%Aug clear sky
ClearCloud cover
Similar
Similar things to doKauaiUnited StatesSimilar things to doHuatulcoMexicoSimilar things to doNassauBahamasSimilar things to doPhuketThailand
Want a side-by-side climate view? Compare Big Island with Kauai.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 29, 2026
Data & methodology