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September Weather in Britiande, Portugal

Last updated: August 27, 2025

In September, the average temperature in Britiande, Portugal is a pleasant 18°C (65°F). Expect a range that can dip to a minimum of 7°C (45°F) and soar up to a maximum of 32°C (90°F). Rainfall is moderate, with an average precipitation of 42 mm (1.7 in) spread over about 6 days. Additionally, enjoy a relatively high average humidity of 71%, adding to the overall climate experience.

September Temperature in Britiande

In September in Britiande, the average temperature is 18°C (65°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 7°C (45°F). It’s a great time to explore Britiande, so pack layers to prepare for the temperature variations!

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

The chart illustrates September temperature patterns in Britiande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Britiande, September typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec424749536063696965584845
Data source: Temperature data for Britiande 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 Britiande

In Britiande in September, the total precipitation amount is 42 mm (1.7 in) spread over 6 days.

September Precipitation Trends in Britiande

The chart displays monthly precipitation patterns in Britiande, 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 Britiande, September typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec5598113115514622184279103125
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Britiande

In Britiande in September humidity is 71%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making it a bit sticky and muggy, which can be slightly uncomfortable for traveling, especially if you're engaging in outdoor activities or exploring the city on foot.

September Average Humidity in Britiande

This chart illustrates the average monthly humidity levels in Britiande, 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 Britiande is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%81%78%79%78%71%63%64%71%79%86%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Britiande

In Britiande 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 Britiande.

Maximum UV Index Levels in Britiande for September

The chart shows the monthly maximum UV Index (UVI) for Britiande 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 Britiande typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910111098642
Data source: Britiande 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 Britiande Compares to Other Months

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

This table compares monthly weather conditions in Britiande, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)55 mm (2.2 inches)87%moderate
February Weather8°C (47°F)98 mm (3.9 inches)81%moderate
March Weather9°C (49°F)113 mm (4.4 inches)78%high
April Weather12°C (53°F)115 mm (4.5 inches)79%very high
May Weather15°C (60°F)51 mm (2.0 inches)78%very high
June Weather17°C (64°F)46 mm (1.8 inches)71%extreme
July Weather20°C (69°F)22 mm (0.9 inches)63%very high
August Weather20°C (69°F)18 mm (0.7 inches)64%very high
September Weather18°C (65°F)42 mm (1.7 inches)71%very high
October Weather14°C (58°F)78 mm (3.1 inches)79%high
November Weather9°C (49°F)103 mm (4.1 inches)86%moderate
December Weather7°C (45°F)125 mm (4.9 inches)87%low

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