Austria Hallstatt Weather in September — Climate Guide
September in Hallstatt is high
September is high for Hallstatt.
September is one of the best months to visit — mild, around 19°C/10°C, with crowds easing from the summer peak while attractions, boats, and the salt mine remain open. The weather is often more settled than midsummer, with a bit less rain.
It's the prime shoulder-season window: enough warmth and daylight for the lake and the Dachstein, noticeably fewer day-trippers than July-August (especially after the first week), and a calmer, more pleasant village feel. Mornings and evenings are lovely.
Travel score
Hallstatt September Weather Stats
Avg High
19°C
Avg Low
10°C
Rainy Days
13
110mm total
Sunshine
5h
Daily avg
Humidity
78%
comfortable
UV Index
5
Moderate
Wind
7 km/h
Gusts 16
Crowds
Busy
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
12 μg/m³
PM10
24 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
19°C
Nighttime
10°C
Humidity and wind affect how the actual temperature feels.
Wind
7 km/h
Max gust 16 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Mild weather with easing crowds
- All attractions and the salt mine still open
- First autumn colour and lovely light late month
- Generally more settled than midsummer
Cons
- Still busy in the first week
- Rain and fog still possible
- Prices ease only modestly from peak
- Cooler evenings
September Events & Festivals
- Crowds easing from the summer peak
- First hints of autumn colour late month
- All attractions, boats, and the salt mine still open
- Pleasant, mostly settled early-autumn weather
Hallstatt in September — Full Picture
September is one of the best months to visit — mild, around 19°C/10°C, with crowds easing from the summer peak while attractions, boats, and the salt mine remain open. The weather is often more settled than midsummer, with a bit less rain.
It's the prime shoulder-season window: enough warmth and daylight for the lake and the Dachstein, noticeably fewer day-trippers than July-August (especially after the first week), and a calmer, more pleasant village feel. Mornings and evenings are lovely.
Late in the month the first autumn colour touches the surrounding hills, and the lower light can be beautiful for photography. Rain and the odd foggy morning are still part of the alpine-lake picture, so pack a waterproof and keep the Dachstein for a clear day.
This is a top recommendation if you want the village near its best with the attractions running but the crowds thinning. Prices ease a little from peak but stay relatively high; book ahead for the better rooms.
What to Wear & What to Pack
Mild early autumn — around 19°C/10°C. Light layers for the day, a light waterproof, and a warm layer for cooler evenings and the lake.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
13°C
3.7°C
13.3/mo
Summer (Jun·Jul·Aug)
22.7°C
12.3°C
15.7/mo
Autumn (Sep·Oct·Nov)
Current13°C
5.3°C
12/mo
Winter (Dec·Jan·Feb)
2°C
-3.3°C
11.7/mo
Hallstatt Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 1° | -4° | 12d·75mm | 2h | 85% | 1 | Quiet | Shoulder | |
| 3° | -3° | 11d·65mm | 3h | 83% | 2 | Quiet | Shoulder | |
| 8° | 0° | 12d·80mm | 4h | 78% | 3 | Quiet | Shoulder | |
| 13° | 3° | 13d·90mm | 5h | 75% | 4 | Moderate | Shoulder | |
| 18° | 8° | 15d·120mm | 6h | 74% | 6 | Busy | Peak | |
| 21° | 11° | 16d·145mm | 6h | 75% | 7 | Busy | Peak | |
| July (Best) | 24° | 13° | 16d·160mm | 6.5h | 75% | 7 | Very busy | Peak |
| August (Best) | 23° | 13° | 15d·155mm | 6h | 77% | 6 | Very busy | Peak |
| 19° | 10° | 13d·110mm | 5h | 78% | 5 | Busy | Peak | |
| 13° | 5° | 11d·90mm | 4h | 81% | 3 | Moderate | Shoulder | |
| 7° | 1° | 12d·90mm | 2.5h | 85% | 1 | Quiet | Low season | |
| 2° | -3° | 12d·80mm | 2h | 86% | 1 | Moderate | Peak |
View Other Months
Hallstatt September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Hallstatt?
Hallstatt in September is high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Hallstatt in September?
Hallstatt September averages a high of 19°C and a low of 10°C.
Does it rain much in Hallstatt in September?
Hallstatt September averages 110mm of rainfall over about 13 rainy days.
What should I wear in Hallstatt in September?
Mild early autumn — around 19°C/10°C. Light layers for the day, a light waterproof, and a warm layer for cooler evenings and the lake.
What time are sunrise and sunset in Hallstatt in September?
Hallstatt September sunrise is 06:45 and sunset is 19:10, with 12h 25min of daylight.
What's the air quality like in Hallstatt in September?
Hallstatt September air quality (AQI) averages 34, rated Good. PM2.5 averages 12μg/m³.
What activities are recommended in Hallstatt in September?
In September, Hallstatt is great for Lake-boat rides, Dachstein cable car, ice caves & 5fingers, Salt mine and Salzberg walks.
Is September peak season in Hallstatt?
Hallstatt September crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Hallstatt
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.