August Weather in Chaves, Portugal

Last updated: August 27, 2025

In August, the average temperature in Chaves, Portugal is a pleasant 20°C (69°F), with variations ranging from a cool 6°C (44°F) to a sizzling 37°C (99°F). Expect a modest 15 mm (0.6 in) of precipitation spread over 4 days, and enjoy a comfortable average humidity level of 64%.

August Temperature in Chaves

In August in Chaves, the average temperature is 20°C (69°F), with maximums reaching up to 37°C (99°F) and minimums dipping down to as low as 6°C (44°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while also being prepared for some temperature fluctuations.

August Weather in Chaves: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Chaves, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chaves, August typically has an average temperature of 20°C (69°F), with highs reaching up to 37°C (99°F) and lows dropping to around 6°C (44°F).

Data source: Temperature data for Chaves generated using information from the Copernicus Climate Change Service.

August Precipitation in Chaves

In Chaves in August, the precipitation amount is 15 mm (0.6 in) occurring over the course of 4 days.

August Precipitation Trends in Chaves

The chart displays monthly precipitation patterns in Chaves, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Chaves, August typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Chaves

In Chaves in August, humidity is 64%. With an average temperature of 20°C (69°F), this humidity feels like a warm, slightly sticky embrace that can leave travelers feeling a bit sluggish. It's essential to stay hydrated and take breaks in the shade while exploring, as the moisture in the air can make outdoor activities feel more intense.

August Average Humidity in Chaves

This chart illustrates the average monthly humidity levels in Chaves, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Chaves is approximately 64%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Chaves

In Chaves in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Chaves.

Maximum UV Index Levels in Chaves for August

The chart shows the monthly maximum UV Index (UVI) for Chaves in August, 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 August, the maximum UV index in Chaves typically reaches 9, which falls under the very high exposure category.

Data source: Chaves August 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 August Weather in Chaves Compares to Other Months

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

This table compares monthly weather conditions in Chaves, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	43 mm (1.7 inches)	87%	low
February Weather	8°C (46°F)	87 mm (3.4 inches)	81%	moderate
March Weather	9°C (48°F)	90 mm (3.5 inches)	78%	high
April Weather	11°C (52°F)	90 mm (3.5 inches)	79%	very high
May Weather	15°C (59°F)	49 mm (1.9 inches)	78%	very high
June Weather	18°C (64°F)	39 mm (1.5 inches)	71%	extreme
July Weather	21°C (69°F)	19 mm (0.8 inches)	63%	very high
August Weather	20°C (69°F)	15 mm (0.6 inches)	64%	very high
September Weather	18°C (65°F)	30 mm (1.2 inches)	71%	very high
October Weather	14°C (57°F)	71 mm (2.8 inches)	79%	high
November Weather	9°C (48°F)	80 mm (3.2 inches)	86%	moderate
December Weather	7°C (45°F)	114 mm (4.5 inches)	87%	low