Monthly climate guide
Valls weather in September
Expect warm weather in Valls in September: afternoons reach about 27°C (80°F), while nights drop to around 16°C (60°F). Around 50 mm of rain falls over the month (some rain), and skies are a mix of sun and cloud. Daytime highs are 4°C cooler than August and 5°C warmer than October.
What stands out in September
- Seasonally, September counts as early autumn in Valls.
- Temperatures are falling — expect highs around 5°C lower by October.
- Evenings cool off sharply: the daily range is around 11°C, so pack a layer.
- Valls is usually about 2°C warmer than Sitges, 50 km away, in September.
Avg high
27°C
80°F
Avg low
16°C
60°F
Rainfall
50 mm
some rain
Humidity
69%
relative
Sky
42%
cloud · a mix of sun and cloud
Valls weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 12°C / 53°F | 2°C / 35°F | 36 mm | 78% | 55% |
| February | 13°C / 56°F | 2°C / 36°F | 25 mm | 72% | 49% |
| March | 16°C / 62°F | 5°C / 40°F | 54 mm | 70% | 52% |
| April | 19°C / 67°F | 8°C / 46°F | 58 mm | 68% | 55% |
| May | 24°C / 74°F | 11°C / 52°F | 38 mm | 63% | 51% |
| June | 28°C / 83°F | 16°C / 60°F | 29 mm | 59% | 40% |
| July | 31°C / 89°F | 19°C / 65°F | 28 mm | 59% | 30% |
| August | 31°C / 88°F | 19°C / 66°F | 32 mm | 63% | 35% |
| September | 27°C / 80°F | 16°C / 60°F | 50 mm | 69% | 42% |
| October | 22°C / 71°F | 12°C / 53°F | 66 mm | 74% | 49% |
| November | 16°C / 60°F | 6°C / 44°F | 74 mm | 78% | 55% |
| December | 13°C / 55°F | 3°C / 38°F | 29 mm | 80% | 55% |
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
- A small travel umbrella, just in case
Is September a good time to visit Valls?
Compare the months in the chart above to find your ideal window.
Best time to visit Valls →Other Spain cities in September
Cite or embed this data
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Valls weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/spain/valls/september
<a href="https://weathercompare.eu/weather/spain/valls/september">Valls weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/spain/valls" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Valls weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/spain/valls/september">Valls weather in September</a> – WeatherCompare</p>
Valls in September: quick answers
Is September a good time to visit Valls?
Yes. September is one of the best months for Valls, with highs around 27°C and about 50 mm of rain.
How warm is Valls in September?
Average highs are about 27°C (80°F) and average lows about 16°C (60°F), based on 10 years of daily data.
Does it rain a lot in Valls in September?
Valls typically gets around 50 mm of rain in September — some rain.
Figures are long-term averages for the area around Valls (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.