Phong Nha weather in July
July in Phong Nha: sweltering, rainy, with clean air — not the time — sticky heat.
#11 of 12 months in Phong Nha · #855 of 897 destinations to visit in July · comfort 46/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Phong Nha in July
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Phong Nha climate normals — July
| Daytime high | 34°C / 93°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 81°F | |
| Rainfall | 116 mm / 4.6 in | 🌧 rainy |
| Rainy days | 15 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 10.3 h/day | |
| Daylight | 13.1 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Phong Nha in July — FAQ
- Is July a good time to visit Phong Nha?
- July in Phong Nha: sweltering, rainy, with clean air — not the time — sticky heat. It ranks #11 of 12 months for Phong Nha on SeasonMap's comfort score (46/100).
- What is the weather like in Phong Nha in July?
- In July, Phong Nha averages a daily high of 34°C and a low of 27°C, with about 115.6 mm of rain over roughly 15.4 rainy days.
- What is the air quality in Phong Nha in July?
- Phong Nha has a mean US Air Quality Index of about 34 in July.