Big Island in August
Weather, crowds, and prices, and whether August is your month.
Warmest water of the year on the Kona side. Expect highs around 87°F, very little rain, peak crowds, and above average.
The bigger picture for Big Island
- Best overall: April-May and September-October; Kona side stays dry nearly year-round.
- Best value: May and September.
- Watch out for: None serious: Hilo side is rainy year-round by design.
See the complete best-time-to-visit guide for Big Island →
What a Big Island trip costs in August
A 7-night Big Island trip for two in August runs about $5,400, covering flights, lodging, and food. For comparison, the year swings from about $4,250 in September to $6,250 in December.
See the full Big Island cost breakdown →Big Island month by month
| Month | High/Low | Rain | Crowds | Prices |
|---|---|---|---|---|
| January | 80/64° | Occasional showers | Peak crowds | Peak prices |
| February | 80/63° | Occasional showers | Busy | Peak prices |
| March | 81/64° | Occasional showers | Busy | Peak prices |
| April | 82/65° | Occasional showers | Busy | Above average |
| May | 84/66° | Very little rain | Moderate | Good value |
| June | 85/68° | Very little rain | Busy | Above average |
| July | 86/69° | Very little rain | Peak crowds | Peak prices |
| August ← | 87/70° | Very little rain | Peak crowds | Above average |
| September | 87/69° | Very little rain | Moderate | Good value |
| October | 86/68° | Occasional showers | Moderate | Good value |
| November | 83/66° | Occasional showers | Moderate | Good value |
| December | 81/65° | Occasional showers | Peak crowds | Peak prices |
Planning a August trip?
Browse the Big Island guides: the full destination profile, all-inclusive resorts, family trips, and honeymoons, or skip the research entirely.
Want August priced for your exact dates?
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