Austria Vienna Weather in September — Climate Guide
September in Vienna is Excellent
September is Excellent for Vienna.
September is early autumn — arguably Vienna's best month. Daytime 22°C, nighttime 11°C, low rainfall + good visibility. Hotel rates dropping. Crowds thinning.
Vienna State Opera season begins September 1 — book performances ahead. Long Night of Museums (first Saturday October, but tickets sold in September) — 100+ museums open until 1 AM with single €17 / $18 ticket.
Travel score
Early autumn + value returns + Vienna Wine Festival
September Weather at a Glance
Vienna in September averages 72°F / 22°C high and 52°F / 11°C low. 6 hours sunshine, 60mm rain, 9 rainy days. Top month of the year — crowds thin + leaves start turning. Sunrise 6:30 AM, sunset 7:15 PM.
September Travel Advice
Long-sleeve + T-shirt + light jacket + sneakers. Wiener Wiesn-Fest (late September to first week October, Prater, Vienna's Oktoberfest version, 15 days) + Vienna Wine Festival (Rathausplatz, first week September) + 3rd week September 'Lange Nacht der Museen' (museums open free at night).
Flying In from Overseas
Korea Chuseok — Seoul-VIE $1,000-1,540 (connections). Week after Chuseok (last week September) offers value.
September Pricing Trends
Tail-end peak — 1st district 4-star $185-310/night. Ringstraße 5-star $350-705.
Vienna September Weather Stats
Avg High
22°C
Avg Low
11°C
Rainy Days
10
50mm total
Sunshine
6h
Daily avg
Humidity
65%
Comfortable
UV Index
4
Moderate
Wind
9 km/h
Gusts 22
Sea Temp
18°C
Cool
Crowds
Moderate
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
13 μg/m³
PM10
24 μg/m³
Status
Good
Feels-Like Temperature & Wind
Feels like
Daytime
22°C
Nighttime
10°C
Humidity and wind affect how the actual temperature feels.
Wind
9 km/h
Max gust 22 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Best value-to-weather
- Vienna State Opera season begins
- Crowds thinning
Cons
- Days shortening
- Variable autumn weather
- Tourist sites still busy weekends
September Events & Festivals
- Vienna State Opera season begins
- Hotel rates dropping from peak
- Long Night of Museums
Vienna in September — Full Picture
September is early autumn — arguably Vienna's best month. Daytime 22°C, nighttime 11°C, low rainfall + good visibility. Hotel rates dropping. Crowds thinning.
Vienna State Opera season begins September 1 — book performances ahead. Long Night of Museums (first Saturday October, but tickets sold in September) — 100+ museums open until 1 AM with single €17 / $18 ticket.
What to Wear & What to Pack
Light jacket + sweater. Long pants. Layered approach.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
16.7°C
5.3°C
11.3/mo
Summer (Jun·Jul·Aug)
26.3°C
14.3°C
12/mo
Autumn (Sep·Oct·Nov)
Current15°C
6.7°C
10/mo
Winter (Dec·Jan·Feb)
4°C
-2°C
12.7/mo
Vienna Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 3° | -3° | 14d·38mm | 2h | 78% | 1 | Quiet | Low season | |
| 5° | -2° | 12d·33mm | 3h | 73% | 1 | Quiet | Low season | |
| 11° | 1° | 11d·39mm | 4.5h | 64% | 2 | Moderate | Shoulder | |
| April (Best) | 17° | 5° | 11d·47mm | 6h | 60% | 4 | Busy | Peak |
| May (Best) | 22° | 10° | 12d·65mm | 7.5h | 58% | 5 | Busy | Peak |
| June (Best) | 25° | 13° | 12d·70mm | 7.5h | 60% | 6 | Very busy | Peak |
| July (Best) | 27° | 15° | 13d·80mm | 8h | 60% | 6 | Very busy | Peak |
| August (Best) | 27° | 15° | 11d·70mm | 7.5h | 60% | 5 | Very busy | Peak |
| September (Best) | 22° | 11° | 10d·50mm | 6h | 65% | 4 | Moderate | Shoulder |
| 15° | 6° | 9d·40mm | 4.5h | 73% | 2 | Moderate | Shoulder | |
| 8° | 3° | 11d·50mm | 2h | 78% | 1 | Quiet | Low season | |
| 4° | -1° | 12d·45mm | 1.5h | 80% | 1 | Busy | Peak |
View Other Months
Vienna September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Vienna?
Vienna in September is Excellent. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Vienna in September?
Vienna September averages a high of 22°C and a low of 11°C.
Does it rain much in Vienna in September?
Vienna September averages 50mm of rainfall over about 10 rainy days.
What should I wear in Vienna in September?
Light jacket + sweater. Long pants. Layered approach.
What time are sunrise and sunset in Vienna in September?
Vienna September sunrise is 06:30 and sunset is 19:00, with 12h 30m of daylight.
What's the air quality like in Vienna in September?
Vienna September air quality (AQI) averages 38, rated Good. PM2.5 averages 13μg/m³.
What activities are recommended in Vienna in September?
In September, Vienna is great for Vienna State Opera season opens, Long Night of Museums tickets sold, Wachau Valley wine harvest.
Is September peak season in Vienna?
Vienna September crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Vienna
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.