Andorra la Vella weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Excellent
Best time to visit: June – September
What is the weather like in Andorra la Vella in September?
In September, Andorra la Vella is mild: daytime highs average 20 °C, and nights cool down to about 10 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 10 rainy days and 65 mm in total. All in all, September is an excellent month for a holiday in Andorra la Vella.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 82 | 80 | 70 |
| Day | 25° | 20° | 16° |
| Night | 14° | 10° | 7° |
| Sun | 8 h | 7 h | 6 h |
| Rain days | 11 | 10 | 9 |
More details for September
- Daylight
- 12 h 34 min07:32 – 20:06
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 49 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Andorra
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %63 %
- Few rainy daysweight 30 %59 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Andorra la Vella in September: quick answers
Is Andorra la Vella hot in September?
No. In September, Andorra la Vella is mild: daytime highs average 20 °C and nights drop to about 10 °C.
Does it rain much in Andorra la Vella in September?
Rain is frequent, with about 10 rainy days and 65 mm in total.
Andorra la Vella month by month
The whole year in Andorra la VellaAll destinations: AndorraWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences