Climate averages 1991–2020
Andorra la Vella weather
in September.
A mild, moderately wet month: the 4th warmest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Andorra la Vella: daytime highs average 20.4°C and nights cool to about 10.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 66 mm of rain on roughly 11 days, which makes September a moderately wet month (the joint 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 32 min on an average September day.
The nearest other city in this atlas is Manresa (90 km away). In September its highs average 24.8°C, 4.4°C warmer than Andorra la Vella, with 90 mm of rain.
From September to October, average highs fall by 4.3°C to 16.1°C, and monthly rainfall stays at 66 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Andorra la Vella climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.3°C-1.8°C | -1.8°C | 72 | 10.2 | 9.49 h |
| February | 6.9°C-1.5°C | -1.5°C | 54 | 10.0 | 10.511 h |
| March | 10.4°C1.0°C | 1.0°C | 66 | 11.5 | 11.912 h |
| April | 13.0°C3.3°C | 3.3°C | 92 | 14.0 | 13.313 h |
| May | 17.4°C8.0°C | 8.0°C | 106 | 16.0 | 14.615 h |
| June | 21.9°C12.5°C | 12.5°C | 95 | 13.7 | 15.215 h |
| July | 24.8°C15.1°C | 15.1°C | 70 | 11.4 | 15.015 h |
| August | 24.7°C15.2°C | 15.2°C | 69 | 11.8 | 13.914 h |
| September, selected | 20.4°C10.9°C | 10.9°C | 66 | 10.5 | 12.513 h |
| October | 16.1°C7.2°C | 7.2°C | 66 | 9.8 | 11.111 h |
| November | 10.1°C1.8°C | 1.8°C | 81 | 10.8 | 9.810 h |
| December | 7.0°C-0.9°C | -0.9°C | 63 | 10.0 | 9.19 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Manresa in SeptemberSpain · 90 kmHigh 24.8°C · Low 14.9°C · 90 mm rain
- Terrassa in SeptemberSpain · 112 kmHigh 23.5°C · Low 15.4°C · 87 mm rain
- Perpignan in SeptemberFrance · 114 kmHigh 24.8°C · Low 16.2°C · 55 mm rain
- Sabadell in SeptemberSpain · 118 kmHigh 23.6°C · Low 16.5°C · 87 mm rain
- Rubí in SeptemberSpain · 121 kmHigh 24.1°C · Low 16.6°C · 87 mm rain
- Toulouse in SeptemberFrance · 122 kmHigh 24.0°C · Low 14.3°C · 56 mm rain
- Girona in SeptemberSpain · 122 kmHigh 24.7°C · Low 15.6°C · 103 mm rain
- Lleida in SeptemberSpain · 124 kmHigh 26.9°C · Low 15.7°C · 45 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Andorra la Vella) is explained once on the Andorra la Vella year overview and on the Sources, method and limits page.