August Weather in Mertola, Portugal

Last updated: August 27, 2025

In August, the average temperature in Mertola, Portugal hovers around 26°C (78°F). However, be prepared for variability, as temperatures can dip to a cool 13°C (57°F) or soar to a scorching 44°C (112°F). Fortunately, the month is quite dry, with only 2 mm (0.1 in) of precipitation spread over 0 days, resulting in an average humidity of 68%.

August Temperature in Mertola

In August in Mertola, the average temperature is 26°C (78°F). Maximums can reach 44°C (112°F), while minimums can drop as low as 13°C (57°F). Be prepared for a range of temperatures and pack accordingly for your travels!

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

The chart illustrates August temperature patterns in Mertola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mertola, August typically has an average temperature of 26°C (78°F), with highs reaching up to 44°C (112°F) and lows dropping to around 13°C (57°F).

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

August Precipitation in Mertola

In Mertola in August, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

August Precipitation Trends in Mertola

The chart displays monthly precipitation patterns in Mertola, 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 Mertola, August typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 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 Mertola

In Mertola in August, humidity is 68%. With an average temperature of 26°C (78°F), this humidity feels like a warm, sticky embrace, making outdoor activities challenging but the lush greenery inviting.

August Average Humidity in Mertola

This chart illustrates the average monthly humidity levels in Mertola, 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 Mertola is approximately 68%, 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 Mertola

In Mertola in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Mertola.

Maximum UV Index Levels in Mertola for August

The chart shows the monthly maximum UV Index (UVI) for Mertola 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 Mertola typically reaches 10, which falls under the very high exposure category.

Data source: Mertola 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 Mertola Compares to Other Months

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

This table compares monthly weather conditions in Mertola, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	23 mm (0.9 inches)	80%	moderate
February Weather	12°C (54°F)	37 mm (1.5 inches)	73%	moderate
March Weather	13°C (56°F)	67 mm (2.7 inches)	71%	high
April Weather	15°C (60°F)	55 mm (2.2 inches)	69%	very high
May Weather	20°C (68°F)	26 mm (1.0 inches)	69%	very high
June Weather	22°C (72°F)	9 mm (0.4 inches)	67%	extreme
July Weather	24°C (76°F)	2 mm (0.1 inches)	69%	extreme
August Weather	26°C (78°F)	2 mm (0.1 inches)	68%	very high
September Weather	23°C (74°F)	22 mm (0.8 inches)	71%	very high
October Weather	19°C (67°F)	38 mm (1.5 inches)	75%	high
November Weather	14°C (57°F)	48 mm (1.9 inches)	78%	moderate
December Weather	11°C (53°F)	40 mm (1.6 inches)	81%	moderate