Kona weather in August
August in Kona: hot, rainy, with clean air — an excellent time to visit.
#11 of 12 months in Kona · #166 of 604 destinations to visit in August · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Kona climate normals — August
| Daytime high | 26°C / 78°F | 🥵 hot |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Feels like (high) | 31°C / 88°F | |
| Rainfall | 89 mm / 3.5 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 21°C / 69°F | |
| Sunshine | 11.7 h/day | |
| Daylight | 12.8 h | |
| Wind | 12 km/h / 8 mph | |
| Air quality (US AQI) | 16 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Kona in August — FAQ
- Is August a good time to visit Kona?
- August in Kona: hot, rainy, with clean air — an excellent time to visit. It ranks #11 of 12 months for Kona on SeasonMap's comfort score (86/100).
- What is the weather like in Kona in August?
- In August, Kona averages a daily high of 25.8°C and a low of 21.5°C, with about 89.2 mm of rain over roughly 14 rainy days.
- What is the air quality in Kona in August?
- Kona has a mean US Air Quality Index of about 16 in August.