SeasonMapTe Anau (Milford Sound) weather in September
New Zealand
September in Te Anau: cold, soaked, with clean air — fine if you can take 18 rainy days.
#11 of 12 months in Te Anau · #956 of 1383 destinations to visit in September · comfort 69/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Te Anau in September
Other months in Te Anau
Te Anau's forum calls January reliably summery, with overnight lows typically 10-15°C and daytime warmth in the 20s, occasionally climbing into the high 20s or low 30s. Regulars point out Te Anau sits in a genuine rain shadow — its yearly rainfall is a fraction of the West Coast's on the other side of the mountains — though cloudy, showery days still happen; a warm waterproof jacket alongside summer clothes covers most conditions.
Add your own note from Te Anau's card on the map.
Te Anau climate normals — September
| Daytime high | 10°C / 50°F | 🧥 cold |
|---|---|---|
| Nighttime low | 4°C / 38°F | |
| Feels like (high) | 7°C / 45°F | |
| Rainfall | 202 mm / 8 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 5°C / 40°F | |
| Sunshine | 8.2 h/day | |
| Daylight | 11.8 h | |
| Wind | 16 km/h / 10 mph | |
| Snowfall | 11.2 cm / 4.4 in | |
| Air quality (US AQI) | 26 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Te Anau in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyTerm 3 (Sept/Oct) break in New Zealand, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Te Anau's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherTe Anau's weather peaks January–March.
September coincides with Milford road avalanche season.
Best weatherFair weatherToughest weather
What's on in Te Anau in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Milford road avalanche season
1 May – 30 Nov · usuallyClosuresThe road to Milford runs under avalanche paths, and through winter and spring it closes at short notice for control work. Chains must be carried, and the gate can shut with you on either side of it. Source ↗
Nearby, and something's on
Within 300 km of Te Anau — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Te Anau?
Te Anau in September — FAQ
- Is September a good time to visit Te Anau?
- September in Te Anau: cold, soaked, with clean air — fine if you can take 18 rainy days. It ranks #11 of 12 months for Te Anau on SeasonMap's comfort score (69/100).
- What is the weather like in Te Anau in September?
- In September, Te Anau averages a daily high of 10.2°C and a low of 3.6°C, with about 202.2 mm of rain over roughly 17.9 rainy days.
- What is the air quality in Te Anau in September?
- Te Anau has a mean US Air Quality Index of about 26 in September.
- Does it snow in Te Anau in September?
- Te Anau sees roughly 11.2 cm of snowfall in September.
Other months in Te Anau
Compare Te Anau in September
Warmer or cooler than Te Anau in September
Similar destinations in Oceania — September
Within 300 km: Aoraki Mount Cook's Milky Way season around 15 Apr – 15 Sep, and Lake Tekapo's Milky Way season around 15 Apr – 15 Sep.