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October Weather in Viseu, Portugal

Last updated: August 27, 2025

In Viseu, Portugal, the average temperature in October hovers around 15°C (59°F), with extremes ranging from a chilly 0°C (33°F) to a warm 31°C (88°F). This month sees an average precipitation of 108 mm (4.3 in) across 9 days, contributing to an average humidity level of 79%.

October Temperature in Viseu

In October in Viseu, the average temperature is 15°C (59°F), with maximums reaching up to 31°C (88°F) and minimums dropping as low as 0°C (33°F). This varied climate makes Viseu an ideal destination for travelers seeking both mild and warm weather experiences.

October Weather in Viseu: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Viseu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Viseu, October typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec444850546064696966595047
Data source: Temperature data for Viseu 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 Viseu

In Viseu in October, the precipitation amount is 108 mm (4.3 in) spread over 9 days.

October Precipitation Trends in Viseu

The chart displays monthly precipitation patterns in Viseu, 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 Viseu, October typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec851341521456849191947108149174
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Viseu

In Viseu in October humidity is 79%. With an average temperature of 15°C (59°F), this humidity feels like a muggy embrace that clings to your skin, making outdoor activities somewhat uncomfortable. Travelers may find themselves frequently seeking shelter or refreshing drinks to combat the warm, damp air, as the moisture in the atmosphere feels particularly heavy, especially during longer excursions.

October Average Humidity in Viseu

This chart illustrates the average monthly humidity levels in Viseu, 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 Viseu is approximately 79%, 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 October generated using information from the Copernicus Climate Change Service.

October UV Index in Viseu

In Viseu 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 Viseu, you can refer to this Hourly UV Index in Viseu.

Maximum UV Index Levels in Viseu for October

The chart shows the monthly maximum UV Index (UVI) for Viseu 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 Viseu typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910111098642
Data source: Viseu 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 Viseu Compares to Other Months

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

This table compares monthly weather conditions in Viseu, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)85 mm (3.3 inches)87%moderate
February Weather9°C (48°F)134 mm (5.3 inches)81%moderate
March Weather10°C (50°F)152 mm (6.0 inches)78%high
April Weather12°C (54°F)145 mm (5.7 inches)79%very high
May Weather16°C (60°F)68 mm (2.7 inches)78%very high
June Weather18°C (64°F)49 mm (1.9 inches)71%extreme
July Weather20°C (69°F)19 mm (0.7 inches)63%very high
August Weather21°C (69°F)19 mm (0.8 inches)64%very high
September Weather19°C (66°F)47 mm (1.8 inches)71%very high
October Weather15°C (59°F)108 mm (4.3 inches)79%high
November Weather10°C (50°F)149 mm (5.9 inches)86%moderate
December Weather8°C (47°F)174 mm (6.8 inches)87%low

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