July · Vietnam
Best time to visit Phong Nha in July Weather, crowds & prices
Weather in Phong Nha in July
Average temperature 27°C, 180 mm of rain, about 24 days with 6+ hours of sunshine and 86% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
July score
4.5/10
Ranked #8 of 12 months
- Avg temp
- 27°C
- Rainfall
- 180 mm
- Humidity
- 86%
- Days with 6h+ sun
- 24
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
July in Phong Nha scores 4.5/10 for nature and wildlife travel - ranked #8 of 12. Expect around 27°C, 180 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.
Phong Nha anchors the world's largest cave country with Son Doong expeditions and river cave boats. Best window: the drier months outside peak monsoon.
July in Phong Nha — off-season conditions
Days in July average 27°C (80°F) and humidity near 86% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
180 mm of rain makes this a wet month here, though with about 24 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 4.5/10 on the same scale — 8th of 12 months, versus 7.3/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, March is materially better in Phong Nha — 2.8 points higher on the same scale.
Frequently asked
- What is the weather like in Phong Nha in July?
- In July, Phong Nha averages 27°C, 180 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 4.5/10.
- Is July a good time to visit Phong Nha?
- July earns a 4.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Phong Nha in July?
- Expect about 180 mm of rain in July. Average humidity is 86% and there are about 24 days with 6+ hours of sunshine.
Curated in Phong Nha
Tickets & experiences
Things to do in Phong Nha
Phong Nha, Vietnam. Live activities and tours from GetYourGuide, matched to this destination.