Hilo weather in July
July in Hilo: hot, soaked, with clean air — a good time to visit.
#8 of 12 months in Hilo · #409 of 604 destinations to visit in July · comfort 69/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Hilo climate normals — July
| Daytime high | 26°C / 79°F | 🥵 hot |
|---|---|---|
| Nighttime low | 21°C / 70°F | |
| Feels like (high) | 30°C / 86°F | |
| Rainfall | 264 mm / 10.4 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 12.2 h/day | |
| Daylight | 13.2 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 20 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Hilo?
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Hilo in July — FAQ
- Is July a good time to visit Hilo?
- July in Hilo: hot, soaked, with clean air — a good time to visit. It ranks #8 of 12 months for Hilo on SeasonMap's comfort score (69/100).
- What is the weather like in Hilo in July?
- In July, Hilo averages a daily high of 26.2°C and a low of 21°C, with about 263.9 mm of rain over roughly 26 rainy days.
- What is the air quality in Hilo in July?
- Hilo has a mean US Air Quality Index of about 20 in July.