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September Weather in Riu de Cerdanya, Spain

Last updated: August 27, 2025

In Riu de Cerdanya, Spain, the average temperature in September is a pleasant 14°C (58°F). Expect minimums as cool as 1°C (34°F) and maximums soaring to 26°C (78°F). During this month, precipitation typically amounts to 77 mm (3.0 in) over about 12 days, accompanied by an average humidity level of 73%.

September Temperature in Riu de Cerdanya

In September in Riu de Cerdanya, the average temperature is 14°C (58°F). The maximum can reach 26°C (78°F), while the minimum can drop as low as 1°C (34°F). This makes it an ideal time for travelers to enjoy mild weather and a variety of outdoor activities.

September Weather in Riu de Cerdanya: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Riu de Cerdanya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riu de Cerdanya, September typically has an average temperature of 14°C (58°F), with highs reaching up to 26°C (78°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec333841455360666658504036
Data source: Temperature data for Riu de Cerdanya generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Riu de Cerdanya

In Riu de Cerdanya in September, the precipitation amount is 77 mm (3.0 in) spread over 12 days.

September Precipitation Trends in Riu de Cerdanya

The chart displays monthly precipitation patterns in Riu de Cerdanya, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Riu de Cerdanya, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec504376110117104607977937543
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Riu de Cerdanya

In Riu de Cerdanya in September, humidity is 73%. With an average temperature of 14°C (58°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities a bit uncomfortable for traveling unless you stay hydrated and take frequent breaks in the shade.

September Average Humidity in Riu de Cerdanya

This chart illustrates the average monthly humidity levels in Riu de Cerdanya, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Riu de Cerdanya is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%77%75%74%72%70%73%82%87%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Riu de Cerdanya

In Riu de Cerdanya in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Riu de Cerdanya.

Maximum UV Index Levels in Riu de Cerdanya for September

The chart shows the monthly maximum UV Index (UVI) for Riu de Cerdanya in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Riu de Cerdanya typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468101111108642
Data source: Riu de Cerdanya September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Riu de Cerdanya Compares to Other Months

Weather in Riu de Cerdanya varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Riu de Cerdanya, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Riu de Cerdanya, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)50 mm (2.0 inches)87%moderate
February Weather3°C (39°F)43 mm (1.7 inches)83%moderate
March Weather5°C (41°F)76 mm (3.0 inches)80%high
April Weather7°C (46°F)110 mm (4.3 inches)77%very high
May Weather12°C (53°F)117 mm (4.6 inches)75%very high
June Weather16°C (61°F)104 mm (4.1 inches)74%extreme
July Weather19°C (66°F)60 mm (2.4 inches)72%extreme
August Weather19°C (66°F)79 mm (3.1 inches)70%very high
September Weather14°C (58°F)77 mm (3.0 inches)73%very high
October Weather10°C (51°F)93 mm (3.7 inches)82%high
November Weather4°C (40°F)75 mm (3.0 inches)87%moderate
December Weather2°C (36°F)43 mm (1.7 inches)88%low

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