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September Weather in Monterroso, Spain

Last updated: August 27, 2025

In Monterroso, Spain, the average temperature in September hovers around 17°C (63°F), with lows dipping to a brisk 4°C (39°F) and highs reaching a warm 33°C (91°F). During this time, you can expect 49 mm (1.9 in) of precipitation spread across about 8 days, and the average humidity lingers at a comfortable 79%.

September Temperature in Monterroso

In September in Monterroso, the average temperature is 17°C (63°F), with maximums reaching up to 33°C (91°F) and minimums dipping as low as 4°C (39°F). It's important to pack for a range of temperatures to ensure a comfortable travel experience.

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

The chart illustrates September temperature patterns in Monterroso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monterroso, September typically has an average temperature of 17°C (63°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec434748525761656662564946
Data source: Temperature data for Monterroso 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 Monterroso

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

September Precipitation Trends in Monterroso

The chart displays monthly precipitation patterns in Monterroso, 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 Monterroso, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec77113123948169283549102124159
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Monterroso

In Monterroso in September, humidity is 79%. With an average temperature of 17°C (63°F), this humidity feels like a warm, muggy embrace, making outdoor activities less comfortable and prompting travelers to seek shaded areas or cool refreshments more frequently.

September Average Humidity in Monterroso

This chart illustrates the average monthly humidity levels in Monterroso, 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 Monterroso 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 Monterroso

In Monterroso 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 Monterroso.

Maximum UV Index Levels in Monterroso for September

The chart shows the monthly maximum UV Index (UVI) for Monterroso 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 Monterroso typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689111098632
Data source: Monterroso 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 Monterroso Compares to Other Months

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

This table compares monthly weather conditions in Monterroso, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)77 mm (3.0 inches)84%low
February Weather8°C (47°F)113 mm (4.5 inches)83%moderate
March Weather9°C (48°F)123 mm (4.8 inches)82%high
April Weather11°C (52°F)94 mm (3.7 inches)83%very high
May Weather14°C (57°F)81 mm (3.2 inches)83%very high
June Weather16°C (61°F)69 mm (2.7 inches)83%extreme
July Weather19°C (66°F)28 mm (1.1 inches)82%very high
August Weather19°C (66°F)34 mm (1.4 inches)78%very high
September Weather17°C (63°F)49 mm (1.9 inches)79%very high
October Weather14°C (57°F)102 mm (4.0 inches)82%high
November Weather9°C (49°F)124 mm (4.9 inches)84%moderate
December Weather8°C (47°F)158 mm (6.2 inches)85%low

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