What is the weather like in Nha Trang vs Phong Nha in September?

In September, Nha Trang averages 32°C high / 26°C low with about 316 mm of rain; Phong Nha averages 31°C high / 25°C low with about 360 mm.

Nha Trang vs Phong Nha in September

Nha Trang is the better pick in September — 61 vs 44 on SeasonMap's comfort score. Nha Trang is sweltering, soaked, clean air, while Phong Nha is sweltering, soaked, clean air.

Nha Trang vs Phong Nha — September climate, side by side

	🇻🇳 Nha Trang	🇻🇳 Phong Nha
Comfort score	61/100 (C)	44/100 (F)
Feels-like high	39°C	37°C
Avg high / low	32° / 26°	31° / 25°
Rainfall	316 mm	360 mm
Rainy days	27	22
Humidity	83%	86%
Air quality (AQI)	49	42

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Nha Trang vs Phong Nha in September — FAQ

Is September better in Nha Trang or Phong Nha?: Nha Trang is the better pick in September — 61 vs 44 on SeasonMap's comfort score. Nha Trang is sweltering, soaked, clean air, while Phong Nha is sweltering, soaked, clean air.
What is the weather like in Nha Trang vs Phong Nha in September?: In September, Nha Trang averages 32°C high / 26°C low with about 316 mm of rain; Phong Nha averages 31°C high / 25°C low with about 360 mm.