Monthly climate guide
Jaén weather in September
With highs near 31°C (87°F) and lows around 17°C (62°F), September feels hot in Jaén. Rainfall averages about 29 mm (fairly dry) and the sky is mostly sunny. Daytime highs are 6°C cooler than August and 6°C warmer than October.
What stands out in September
- Jaén is usually about 2°C warmer than Alcalá la Real, 40 km away, in September.
- September brings early autumn to Jaén.
- Expect a big gap between day and night — about 14°C.
- Temperatures are falling — expect highs around 5°C lower by October.
Avg high
31°C
87°F
Avg low
17°C
62°F
Rainfall
29 mm
fairly dry
Humidity
45%
relative
Sky
33%
cloud · mostly sunny
Jaén weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 13°C / 56°F | 3°C / 37°F | 34 mm | 77% | 49% |
| February | 14°C / 58°F | 3°C / 37°F | 36 mm | 72% | 46% |
| March | 18°C / 64°F | 5°C / 41°F | 64 mm | 68% | 50% |
| April | 21°C / 70°F | 8°C / 47°F | 55 mm | 65% | 56% |
| May | 26°C / 80°F | 12°C / 53°F | 29 mm | 55% | 42% |
| June | 32°C / 90°F | 16°C / 61°F | 6 mm | 41% | 25% |
| July | 37°C / 98°F | 20°C / 68°F | 1 mm | 30% | 13% |
| August | 36°C / 98°F | 20°C / 69°F | 7 mm | 31% | 19% |
| September | 31°C / 87°F | 17°C / 62°F | 29 mm | 45% | 33% |
| October | 25°C / 77°F | 12°C / 54°F | 41 mm | 57% | 39% |
| November | 17°C / 63°F | 7°C / 44°F | 67 mm | 73% | 49% |
| December | 15°C / 58°F | 4°C / 39°F | 28 mm | 74% | 42% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
- Sunglasses
Is September a good time to visit Jaén?
Compare the months in the chart above to find your ideal window.
Best time to visit Jaén →Other Spain cities in September
Cite or embed this data
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Jaén weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/spain/jaen/september
<a href="https://weathercompare.eu/weather/spain/jaen/september">Jaén weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/spain/jaen" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Jaén weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/spain/jaen/september">Jaén weather in September</a> – WeatherCompare</p>
Jaén in September: quick answers
Is September a good time to visit Jaén?
September is a reasonable time for Jaén: highs around 31°C and about 29 mm of rain, though not one of the three best months.
How warm is Jaén in September?
Average highs are about 31°C (87°F) and average lows about 17°C (62°F), based on 10 years of daily data.
Does it rain a lot in Jaén in September?
Jaén typically gets around 29 mm of rain in September — fairly dry.
Figures are long-term averages for the area around Jaén (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.