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August Weather in Custoias, Portugal

Last updated: August 27, 2025

In August, the average temperature in Custoias, Portugal is a pleasant 22°C (72°F). However, be prepared for a range, as temperatures can drop to a minimum of 8°C (47°F) and soar to a maximum of 39°C (102°F). With a total precipitation of only 10 mm (0.4 in) over 2 days, the average humidity stays around 52%, making for a comfortable environment.

August Temperature in Custoias

In August in Custoias, the average temperature is 22°C (72°F). Maximums can reach 39°C (102°F), while minimums can dip as low as 8°C (47°F). This diverse temperature range makes Custoias an exciting destination for travelers seeking both warm days and cooler nights.

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

The chart illustrates August temperature patterns in Custoias, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Custoias, August typically has an average temperature of 22°C (72°F), with highs reaching up to 39°C (102°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec424750546267727266594946
Data source: Temperature data for Custoias 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.

August Precipitation in Custoias

In Custoias in August, the precipitation amount is 10 mm (0.4 in) over a period of 2 days.

August Precipitation Trends in Custoias

The chart displays monthly precipitation patterns in Custoias, 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 Custoias, August typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec285964702933141031506570
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Custoias

In Custoias in August humidity is 52%. With an average temperature of 22°C (72°F), this humidity feels like a refreshing embrace during your travels, creating a pleasant sensation that makes outdoor activities enjoyable and inviting.

August Average Humidity in Custoias

This chart illustrates the average monthly humidity levels in Custoias, 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 Custoias is approximately 52%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%85%79%77%76%64%54%52%63%78%90%91%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Custoias

In Custoias 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 Custoias.

Maximum UV Index Levels in Custoias for August

The chart shows the monthly maximum UV Index (UVI) for Custoias 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 Custoias typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34699111098642
Data source: Custoias 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 Custoias Compares to Other Months

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

This table compares monthly weather conditions in Custoias, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)28 mm (1.1 inches)91%moderate
February Weather9°C (48°F)59 mm (2.3 inches)85%moderate
March Weather10°C (50°F)64 mm (2.5 inches)79%high
April Weather12°C (55°F)70 mm (2.7 inches)77%very high
May Weather17°C (62°F)29 mm (1.2 inches)76%very high
June Weather19°C (67°F)33 mm (1.3 inches)64%extreme
July Weather22°C (72°F)14 mm (0.6 inches)54%very high
August Weather22°C (72°F)10 mm (0.4 inches)52%very high
September Weather19°C (67°F)31 mm (1.2 inches)63%very high
October Weather15°C (59°F)50 mm (2.0 inches)78%high
November Weather10°C (50°F)65 mm (2.6 inches)90%moderate
December Weather8°C (46°F)70 mm (2.8 inches)91%low

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