Kona weather in January
January in Kona: warm, a little rain, with clean air — an excellent time to visit.
#5 of 12 months in Kona · #85 of 604 destinations to visit in January · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Kona climate normals — January
| Daytime high | 23°C / 74°F | 🌤 warm |
|---|---|---|
| Nighttime low | 19°C / 66°F | |
| Feels like (high) | 26°C / 79°F | |
| Rainfall | 34 mm / 1.3 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 18°C / 65°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 11.1 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 25 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Kona?
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Kona in January — FAQ
- Is January a good time to visit Kona?
- January in Kona: warm, a little rain, with clean air — an excellent time to visit. It ranks #5 of 12 months for Kona on SeasonMap's comfort score (86/100).
- What is the weather like in Kona in January?
- In January, Kona averages a daily high of 23.4°C and a low of 18.7°C, with about 34.2 mm of rain over roughly 11 rainy days.
- What is the air quality in Kona in January?
- Kona has a mean US Air Quality Index of about 25 in January.