Monthly climate guide
Andorra weather in September
With highs near 27°C (80°F) and lows around 13°C (56°F), September feels warm in Andorra. Rainfall averages about 26 mm (fairly dry) and the sky is a mix of sun and cloud. Daytime highs are 6°C cooler than August and 5°C warmer than October.
What stands out in September
- Just 80 km apart, but Andorra runs about 2°C cooler than Zaragoza this month.
- It cools down fast from here: October is about 5°C cooler.
- In Andorra, September is early autumn.
- Expect a big gap between day and night — about 13°C.
Avg high
27°C
80°F
Avg low
13°C
56°F
Rainfall
26 mm
fairly dry
Humidity
56%
relative
Sky
44%
cloud · a mix of sun and cloud
Andorra weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 11°C / 51°F | 1°C / 34°F | 28 mm | 76% | 53% |
| February | 12°C / 53°F | 1°C / 34°F | 16 mm | 72% | 52% |
| March | 15°C / 59°F | 3°C / 38°F | 44 mm | 68% | 56% |
| April | 19°C / 65°F | 6°C / 43°F | 51 mm | 65% | 60% |
| May | 23°C / 73°F | 9°C / 48°F | 30 mm | 59% | 53% |
| June | 28°C / 83°F | 13°C / 56°F | 32 mm | 53% | 41% |
| July | 32°C / 90°F | 16°C / 61°F | 19 mm | 47% | 29% |
| August | 32°C / 90°F | 17°C / 62°F | 20 mm | 47% | 34% |
| September | 27°C / 80°F | 13°C / 56°F | 26 mm | 56% | 44% |
| October | 22°C / 71°F | 10°C / 49°F | 38 mm | 64% | 46% |
| November | 14°C / 58°F | 5°C / 41°F | 58 mm | 76% | 58% |
| December | 12°C / 54°F | 2°C / 36°F | 14 mm | 76% | 50% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
Is September a good time to visit Andorra?
Compare the months in the chart above to find your ideal window.
Best time to visit Andorra →Other Spain cities in September
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Andorra weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/spain/andorra/september
<a href="https://weathercompare.eu/weather/spain/andorra/september">Andorra weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/spain/andorra" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Andorra weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/spain/andorra/september">Andorra weather in September</a> – WeatherCompare</p>
Andorra in September: quick answers
Is September a good time to visit Andorra?
Yes. September is one of the best months for Andorra, with highs around 27°C and about 26 mm of rain.
How warm is Andorra in September?
Average highs are about 27°C (80°F) and average lows about 13°C (56°F), based on 10 years of daily data.
Does it rain a lot in Andorra in September?
Andorra typically gets around 26 mm of rain in September — fairly dry.
Figures are long-term averages for the area around Andorra (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.