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September Weather in Grinon, Spain

Last updated: August 27, 2025

In September, the average temperature in Grinon, Spain hovers around 22°C (72°F), offering a pleasant climate for exploration. However, be prepared for fluctuations, as temperatures can dip to a brisk 8°C (47°F) or soar to a sweltering 37°C (99°F). With an average humidity of 65%, you'll feel a touch of warmth throughout the day. Expect 36 mm (1.4 in) of precipitation over 4 days, so packing an umbrella might be a good idea!

September Temperature in Grinon

In September in Grinon, the average temperature is 22°C (72°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 8°C (47°F). This range makes it an ideal time for travelers to enjoy a variety of outdoor activities while also being prepared for cooler evenings.

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

The chart illustrates September temperature patterns in Grinon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grinon, September typically has an average temperature of 22°C (72°F), with highs reaching up to 37°C (99°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec414852566675818171615045
Data source: Temperature data for Grinon 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 Grinon

In Grinon in September, the precipitation amount is 36 mm (1.4 in) over the course of 4 days.

September Precipitation Trends in Grinon

The chart displays monthly precipitation patterns in Grinon, 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 Grinon, September typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec312844713019132036485040
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Grinon

In Grinon in September, humidity is 65%. With an average temperature of 22°C (72°F), this humidity feels like a warm, tropical embrace that can make outdoor activities quite sticky, yet still enjoyable if you stay hydrated and take breaks in the shade.

September Average Humidity in Grinon

This chart illustrates the average monthly humidity levels in Grinon, 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 Grinon is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%86%79%74%71%63%59%58%66%77%87%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Grinon

In Grinon 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 Grinon.

Maximum UV Index Levels in Grinon for September

The chart shows the monthly maximum UV Index (UVI) for Grinon 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 Grinon typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810111198643
Data source: Grinon 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 Grinon Compares to Other Months

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

This table compares monthly weather conditions in Grinon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)31 mm (1.2 inches)90%moderate
February Weather9°C (48°F)28 mm (1.1 inches)86%moderate
March Weather11°C (52°F)43 mm (1.7 inches)79%high
April Weather13°C (56°F)71 mm (2.8 inches)74%very high
May Weather19°C (66°F)30 mm (1.2 inches)71%very high
June Weather24°C (75°F)19 mm (0.8 inches)63%extreme
July Weather27°C (82°F)12 mm (0.5 inches)59%extreme
August Weather27°C (81°F)20 mm (0.8 inches)58%very high
September Weather22°C (72°F)36 mm (1.4 inches)65%very high
October Weather16°C (61°F)48 mm (1.9 inches)77%high
November Weather10°C (50°F)50 mm (2.0 inches)87%moderate
December Weather7°C (45°F)40 mm (1.6 inches)90%moderate

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