Vietnam
Nha Trang in September: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Nha Trang in September is climatically well suited to beach holidays. The average daily high is around 29 °C, and the sea is about 29 °C. With about 27 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
55/100 · #10
Warmth
#5
Dryness
#12
Sun
#7
Sea warmth
#1
Published best categories: none
Nha Trang · SeptemberPhoto: Kevin King · CC BY 2.0Climate facts
- Average high
- 29 °C
- Average low
- 27 °C
- Sea
- 29 °C
- Rainy days (est.)
- 27 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 82 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| August | 29 | 27 | 25 | 136 | 7.2 | 83 | 3.7 | 28 | 56 |
| September (selected) | 29 | 27 | 27 | 230 | 6.7 | 82 | 3.2 | 29 | 55 |
| October | 28 | 27 | 26 | 317 | 5.5 | 84 | 4.2 | 28 | 59 |
How do the previous and next months compare?
Baseline: September (55/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| August | +1 | +0.3 °C | -0.2 °C | -2.5 | -93.7 mm | +0.5 h | +0.7 % | +0.4 m/s | -0.6 °C |
| October | +4 | -1 °C | -0.7 °C | -1.3 | +86.7 mm | -1.2 h | +1.6 % | +1 m/s | -0.9 °C |
All twelve months in context
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Where to stay in Nha Trang
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Useful next decisions
Frequently asked questions
How warm is Nha Trang in September?
The average daily high is around 29 °C, with an average daily low of about 27 °C.
Can you swim in Nha Trang in September?
The sea is about 29 °C (very warm).
Does it rain a lot in Nha Trang in September?
The curated estimate is about 27 rainy days per month, not a directly measured long-term average. Total precipitation averages around 230 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Nha Trang?
By the climate score, January, February, March and April are the strongest months for Nha Trang. For a beach trip: January, February, March and April. September is not among them.