Andorra la Vella Weather in September
In Andorra la Vella, September brings moderate daytime temperatures around 17°C (63°F), with nights cooling to 6°C (43°F). Expect quite a bit of rainfall this month.
Rainfall in Andorra la Vella in September
Records from the past 30 years suggest around 11 days of rain, with 74 mm (2.9 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Andorra la Vella in September
In September, Andorra la Vella gets moderate temperatures, with highs of 17°C (63°F). Nights cool to around 6°C (43°F). The difference between afternoon and evening temperatures is usually noticeable. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Andorra, check out our Andorra la Vella's climate page.
Andorra la Vella Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
17°C (63°F)
Chance of Rain
37%
Precipitation
74 mm (2.9 in)
Rainy days
11 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Andorra la Vella typically stay consistent throughout September, with daily highs averaging around 17°C (63°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 12°C (54°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Andorra la Vella in September
Browse day-by-day weather records for Andorra la Vella spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Andorra la Vella historical weather extremes in September
According to our 49 years of weather records for Andorra la Vella, the following extremes were recorded between 1976 and 2025.
- Andorra la Vella recorded its highest September temperature of 36°C (97°F) on September 16, 1987.
- On September 23, 2025, Andorra la Vella saw its coldest September day with temperatures maxing out at 8°C (46°F).
- Andorra la Vella registered its coldest September night on September 14, 2024, with temperatures dropping to -3°C (27°F).
Best Places in Andorra in September
Find out more about the weather in Andorra and which places have the best travel conditions in this month. See all of Andorra in September →
perfect weather
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What to Wear in Andorra la Vella in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Andorra la Vella in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Andorra, check out our Andorra la Vella's climate page.
See the full Andorra la Vella climate overview or explore weather in Andorra.
