September · Vietnam
Best time to visit Nha Trang in September Weather, crowds & prices
Weather in Nha Trang in September
Average temperature 29°C, 271 mm of rain, about 23 days with 6+ hours of sunshine and 82% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.9/10
Ranked #9 of 12 months
- Avg temp
- 29°C
- Rainfall
- 271 mm
- Humidity
- 82%
- Days with 6h+ sun
- 23
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Nha Trang scores 6.9/10 for beach and coastal travel - ranked #9 of 12. Expect around 29°C, 271 mm of rain, and roughly 23 days with 6+ hours of sunshine this month.
Nha Trang strings beaches, islands and mud baths along a long bay on Vietnam's south-central coast.
September in Nha Trang — workable with trade-offs
September averages 29°C (83°F) and humidity near 82%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
271 mm makes this the wettest stretch of the year, though about 23 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 6.9/10 here, 9th of 12 months, against 9.4/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Plan for mid-season pricing, with crowds are moderate.
Flexible dates? April scores 2.5 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Nha Trang in September?
- In September, Nha Trang averages 29°C, 271 mm of rain, and about 23 days with 6+ hours of sunshine. Its climate-comfort score is 6.9/10.
- Is September a good time to visit Nha Trang?
- September earns a 6.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Nha Trang in September?
- Expect about 271 mm of rain in September. Average humidity is 82% and there are about 23 days with 6+ hours of sunshine.
Curated in Nha Trang
Tickets & experiences
Things to do in Nha Trang
Nha Trang, Vietnam. Live activities and tours from GetYourGuide, matched to this destination.