What is the weather like in Aoraki Mount Cook vs Nelson in September?

In September, Aoraki Mount Cook averages 7°C high / 1°C low with about 344 mm of rain; Nelson averages 16°C high / 6°C low with about 104 mm.

Aoraki Mount Cook vs Nelson in September

Nelson is the better pick in September — 75 vs 60 on SeasonMap's comfort score. Nelson is cool, rainy, clean air, while Aoraki Mount Cook is cold, soaked, clean air.

Aoraki Mount Cook vs Nelson — September climate, side by side

	🇳🇿 Aoraki Mount Cook	🇳🇿 Nelson
Comfort score	60/100 (C)	75/100 (B)
Feels-like high	5°C	13°C
Avg high / low	7° / 1°	16° / 6°
Rainfall	344 mm	104 mm
Rainy days	17	12
Humidity	91%	80%
Air quality (AQI)	30	23

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

Month by month

Aoraki Mount Cook vs Nelson in September — FAQ

Is September better in Aoraki Mount Cook or Nelson?: Nelson is the better pick in September — 75 vs 60 on SeasonMap's comfort score. Nelson is cool, rainy, clean air, while Aoraki Mount Cook is cold, soaked, clean air.
What is the weather like in Aoraki Mount Cook vs Nelson in September?: In September, Aoraki Mount Cook averages 7°C high / 1°C low with about 344 mm of rain; Nelson averages 16°C high / 6°C low with about 104 mm.