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September Weather in Rianxo, Spain

Last updated: August 27, 2025

In September, the average temperature in Rianxo, Spain is a pleasant 19°C (66°F). However, temperatures can vary significantly, with a minimum of 9°C (48°F) and a maximum reaching up to 34°C (93°F). Expect about 49 mm (1.9 in) of precipitation over roughly 8 days, and prepare for an average humidity level of 79%. Whether you're enjoying the warmth or braving the occasional shower, Rianxo offers a unique climate experience!

September Temperature in Rianxo

In September in Rianxo, the average temperature is 19°C (66°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 9°C (48°F). This mild climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

September Weather in Rianxo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rianxo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rianxo, September typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (93°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec485152556063676865605351
Data source: Temperature data for Rianxo 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 Rianxo

In Rianxo in September, the precipitation amount is 49 mm (1.9 in) spread over 8 days.

September Precipitation Trends in Rianxo

The chart displays monthly precipitation patterns in Rianxo, 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 Rianxo, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec1091451501279366293350125172193
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rianxo

In Rianxo in September humidity is 79%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making it feel much warmer than the actual temperature and creating a heavy, sticky atmosphere that can be a bit uncomfortable for traveling.

September Average Humidity in Rianxo

This chart illustrates the average monthly humidity levels in Rianxo, 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 Rianxo is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%83%83%83%82%78%79%82%84%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rianxo

In Rianxo in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Rianxo.

Maximum UV Index Levels in Rianxo for September

The chart shows the monthly maximum UV Index (UVI) for Rianxo 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 Rianxo typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997632
Data source: Rianxo 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 Rianxo Compares to Other Months

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

This table compares monthly weather conditions in Rianxo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)109 mm (4.3 inches)84%low
February Weather10°C (51°F)145 mm (5.7 inches)83%moderate
March Weather11°C (52°F)149 mm (5.9 inches)82%high
April Weather13°C (55°F)127 mm (5.0 inches)83%very high
May Weather16°C (60°F)93 mm (3.7 inches)83%very high
June Weather17°C (63°F)66 mm (2.6 inches)83%very high
July Weather20°C (68°F)29 mm (1.1 inches)82%very high
August Weather20°C (68°F)33 mm (1.3 inches)78%very high
September Weather19°C (66°F)49 mm (1.9 inches)79%high
October Weather15°C (60°F)125 mm (4.9 inches)82%high
November Weather12°C (53°F)172 mm (6.8 inches)84%moderate
December Weather10°C (51°F)193 mm (7.6 inches)85%low

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