Strasbourg in September

In September, Strasbourg averages 22°C (71°F) during the day and 12°C (54°F) at night, with around 9 days of rain (56 mm total).

High season

Conditions are comfortable for sightseeing without being sweltering. Occasional showers are likely but won't dominate.

September is a great month to visit Strasbourg: pleasant temperatures and relatively few wet days.

22°C
Avg high
12°C
Avg low
9
Rain days
56 mm
Rainfall

How September compares to the rest of the year in Strasbourg

4th
warmest month of the 12
12th
wettest month of the 12
6%
of yearly rainfall falls in September
12 h 38 min
daylight on the 15th

September is in the middle of the year for warmth in Strasbourg (4th of 12) and one of the driest months (12th of 12). Daytime temperature runs 6°C above the annual average (16°C). September runs 4°C cooler than August (26°C) and cools 5°C in October (16°C).

September sunrise & sunset in Strasbourg

🌅
Sunrise (15th)
7:05 AM
🌇
Sunset (15th)
7:43 PM
Day length
12 h 38 min

Times shown for Strasbourg local time (Europe/Paris), calculated for the 15th of September. They shift by a few minutes day to day across the month.

Photography light in Strasbourg — September

Golden-hour and blue-hour windows for the 15th of September, in Strasbourg's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
6:05 AM – 6:45 AM
🌄 Golden hour (AM)
6:45 AM – 7:45 AM
🌇 Golden hour (PM)
7:03 PM – 8:03 PM
🌆 Blue hour (PM)
8:03 PM – 8:43 PM
Milky Way galactic core
Poor
Core barely rises (or hasn't yet returned for the season). Consider a different month.

📅 When to book — Strasbourg in September

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (High season) and Strasbourg's popularity.

✈ Flights — lead time
2-3 months
Prices are above off-season but not the absolute peak. Tuesday/Wednesday departures are usually cheaper than weekend ones.
🏨 Lodging — lead time
2-3 months
Wide selection still available at this lead time. Premium properties book first; consider 'last-minute deal' availability at 2-week mark if your dates are flexible.

Crowds & pricing — September in Strasbourg

High season

This is a busy month in Strasbourg — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.

Why this tier: excellent tourism weather

Sun & mosquito risk — September in Strasbourg

☀️ UV Index (noon, 15th)
8
Very high
Limit sun exposure between 11 AM and 3 PM; SPF 30-50, reapply every 90 minutes outdoors.
🦟 Mosquito risk
●●●○○
Moderate
Active mosquito season. DEET 25-30% repellent recommended, especially at dawn/dusk.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Strasbourg in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 6°C / 42°F 0°C / 33°F 85 mm 15
February 8°C / 47°F 1°C / 33°F 67 mm 12
March 12°C / 53°F 2°C / 36°F 61 mm 11
April 16°C / 61°F 5°C / 42°F 62 mm 11
May 20°C / 67°F 10°C / 49°F 79 mm 13
June 25°C / 77°F 15°C / 58°F 68 mm 11
July 26°C / 80°F 16°C / 61°F 81 mm 12
August 26°C / 78°F 16°C / 61°F 71 mm 12
September 22°C / 71°F 12°C / 54°F 56 mm 9
October 16°C / 62°F 9°C / 47°F 75 mm 12
November 10°C / 50°F 4°C / 39°F 78 mm 14
December 7°C / 45°F 2°C / 35°F 91 mm 15

Other cities with similar September weather

🌍 See the full ranked list of climate twins for Strasbourg in September →

Frequently asked questions

How hot is Strasbourg in September?

In September, Strasbourg averages a high of 22°C (71°F) and a low of 12°C (54°F) — generally mild and pleasant.

Does it rain a lot in Strasbourg in September?

September sees occasional rain in Strasbourg, with about 9 rainy days on average.

Is September a good time to visit Strasbourg?

September is mild and pleasant. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Strasbourg in September?

Pack light layers for warm days and cooler evenings. See the full September packing list for Strasbourg for a complete, climate-based checklist.

Open Strasbourg on the interactive map

Check the live 10-day forecast and sunrise/sunset.