SeasonMapFranz Josef weather in September
New Zealand
September in Franz Josef: cold, soaked, with clean air — a gamble, with 17 rainy days.
#10 of 12 months in Franz Josef · #1055 of 1383 destinations to visit in September · comfort 63/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Franz Josef in September
Other months in Franz Josef
Franz Josef's forum is candid that January's warm, long days come with the West Coast's notoriously dramatic weather — brilliant sunshine one minute, monsoon-style downpours the next. Regulars actually rate winter (July/August) as more settled for clear, flyable glacier days, even though January is warmer and busier.
Add your own note from Franz Josef's card on the map.
Franz Josef climate normals — September
| Daytime high | 11°C / 52°F | 🧥 cold |
|---|---|---|
| Nighttime low | 5°C / 42°F | |
| Feels like (high) | 9°C / 48°F | |
| Sea temperature | 12°C / 54°F | 🥶 cold sea |
| Rainfall | 404 mm / 15.9 in | ⛈ soaked |
| Rainy days | 17 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 6°C / 42°F | |
| Sunshine | 8.2 h/day | |
| Daylight | 11.8 h | |
| Wind | 18 km/h / 11 mph | |
| Snowfall | 12.9 cm / 5.1 in | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Franz Josef 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 Franz Josef'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).
Fair weatherFranz Josef's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Franz Josef in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Highway closures in heavy rain
1 Jan – 31 DecFlood seasonClosuresThere is one road in and one road out, and a big West Coast rain event closes it north or south of the village a few times a year. Check the highway before you commit to a night here. Source ↗
- Season
Whitebait season
1 Sep – 30 OctForaging seasonWhitebaiting runs 1 September to 30 October, and every river mouth on the coast grows a line of stands and huts for two months. The patties on the pub menu are the point of it. Source ↗
Nearby, and something's on
Within 300 km of Franz Josef — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Franz Josef?
Franz Josef in September — FAQ
- Is September a good time to visit Franz Josef?
- September in Franz Josef: cold, soaked, with clean air — a gamble, with 17 rainy days. It ranks #10 of 12 months for Franz Josef on SeasonMap's comfort score (63/100).
- What is the weather like in Franz Josef in September?
- In September, Franz Josef averages a daily high of 11.2°C and a low of 5.3°C, with about 403.6 mm of rain over roughly 17 rainy days.
- What is the air quality in Franz Josef in September?
- Franz Josef has a mean US Air Quality Index of about 37 in September.
- Does it snow in Franz Josef in September?
- Franz Josef sees roughly 12.9 cm of snowfall in September.
Other months in Franz Josef
Compare Franz Josef in September
Warmer or cooler than Franz Josef 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.