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October Weather in Castelo Branco, Portugal

Last updated: August 27, 2025

In October, the average temperature in Castelo Branco, Portugal is a pleasant 18°C (65°F). However, temperatures can vary significantly, ranging from a brisk 3°C (37°F) at their lowest to a sweltering 34°C (94°F) at their peak. With 53 mm (2.1 in) of precipitation spread over about 5 days, you can expect a bit of rain. Don't forget, the average humidity sits at a cozy 74%, adding to the region's unique charm!

October Temperature in Castelo Branco

In October in Castelo Branco, the average temperature is 18°C (65°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 3°C (37°F). This makes it a good time for travelers to enjoy a range of outdoor activities while being prepared for both warm days and cooler evenings.

October Weather in Castelo Branco: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Castelo Branco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelo Branco, October typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec465154586671777773645450
Data source: Temperature data for Castelo Branco 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.

October Precipitation in Castelo Branco

In Castelo Branco in October, the precipitation amount is 53 mm (2.1 in) during a span of 5 days.

October Precipitation Trends in Castelo Branco

The chart displays monthly precipitation patterns in Castelo Branco, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Castelo Branco, October typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec3350787529123333537665
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Castelo Branco

In Castelo Branco in October humidity is 74%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can make even short walks feel laborious, leading travelers to seek shade and refreshment more often.

October Average Humidity in Castelo Branco

This chart illustrates the average monthly humidity levels in Castelo Branco, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Castelo Branco is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Castelo Branco

In Castelo Branco in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Castelo Branco, you can refer to this Hourly UV Index in Castelo Branco.

Maximum UV Index Levels in Castelo Branco for October

The chart shows the monthly maximum UV Index (UVI) for Castelo Branco in October, 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 October, the maximum UV index in Castelo Branco typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689111098643
Data source: Castelo Branco October 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 October Weather in Castelo Branco Compares to Other Months

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

This table compares monthly weather conditions in Castelo Branco, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)33 mm (1.3 inches)85%moderate
February Weather11°C (52°F)50 mm (2.0 inches)75%moderate
March Weather12°C (54°F)78 mm (3.1 inches)72%high
April Weather15°C (58°F)75 mm (2.9 inches)70%very high
May Weather19°C (67°F)29 mm (1.2 inches)70%very high
June Weather22°C (72°F)12 mm (0.5 inches)63%extreme
July Weather25°C (77°F)3 mm (0.1 inches)60%very high
August Weather25°C (78°F)3 mm (0.1 inches)60%very high
September Weather23°C (73°F)33 mm (1.3 inches)67%very high
October Weather18°C (65°F)53 mm (2.1 inches)74%high
November Weather12°C (54°F)76 mm (3.0 inches)83%moderate
December Weather10°C (50°F)65 mm (2.6 inches)85%moderate

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