August weather forecast
Portugal

August in Portugal continues the peak summer season, with high temperatures and extremely low levels of precipitation. The average temperature across the country during this month is approximately 24.5°C (76.1°F). Coastal cities such as Lisbon and Porto experience somewhat milder climates compared to the hotter inland regions. Lisbon sees temperatures typically ranging from 19°C (66.2°F) to 29°C (84.2°F), while Porto has temperatures from 16°C (60.8°F) to 25°C (77°F).

As for rainfall, August witnesses minimal precipitation, with Lisbon recording an average of about 6mm (0.24") and Porto receiving slightly more, around 30mm (1.18"). Snowfall in the northern high-altitude areas like Serra da Estrela is an improbable occurrence due to the prevailing high temperatures.

When compared with the previous month of July, August maintains a similar temperature range and sees a slight increase in rainfall, albeit still very low. Looking ahead to the following month, September, August is generally hotter and drier. Despite the intense heat, August remains a popular time for tourists to visit, with ample opportunity to enjoy Portugal's sunny beaches, scenic landscapes, and lively summer festivals.

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• Lisbon - August »
  In Lisbon, the month of August registers the highest temperatures, averaging 28.3°C (82.9°F) at the peak and 18.6°C (65.5°F) at the lowest. In Lisbon, Portugal, in August, the average water temperature is 19.6°C (67.3°F).
• Porto - August »
  August, known for its average high temperature of 25.7°C (78.3°F) and an average low temperature of 15.9°C (60.6°F), is the warmest month in Porto, Portugal. On the first day of August in Porto sunrise is at 06:29 and sunset at 20:51.
• Faro - August »
  The month with the warmest seawater in Faro is August, with an average sea temperature of 22.1°C (71.8°F). August is the month with the warmest seawater in Faro, with an average sea temperature of 22.1°C (71.8°F).
• Coimbra - August »
  The concluding month of summer, August, maintains the trend of high temperatures in Coimbra while marginally cooling down from its July peak. On the last day of August, in Coimbra, sunrise is at 07:00 and sunset at 20:08 WEST.
• Braga - August »
  With an average relative humidity of 64%, August is the least humid month in Braga. The month with the highest UV index in Braga is August, with an average maximum UV index of 6.
• Aveiro - August »
  Aveiro experiences its highest temperatures in August, with an average peak of 25.4°C (77.7°F) and a low of 15.9°C (60.6°F). The average temperatures in Aveiro reach their apex in August, averaging 25.4°C (77.7°F) at the high end and 15.9°C (60.6°F) at the low end.
• Evora - August »
  In Evora in August, it is raining for 2 days, with typically 8mm (0.31") of accumulated precipitation. The shift to August in Evora signals an average high-temperature of a still hot 32.1°C (89.8°F), subtly varied from July's 33.1°C (91.6°F).
• Viseu - August »
  Coupled with the generally warm weather, the city records the highest average temperature of 29.6°C (85.3°F), making August the hottest month in Viseu. The least humid month in Viseu is August, with an average relative humidity of 57%.
• Funchal - August »
  The month with the least rainfall in Funchal is August, when the rain falls for 3.9 days and typically collects 3mm (0.12") of precipitation. The month with the least rainfall in Funchal is August, when the rain falls for 3.9 days and typically collects 3mm (0.12") of precipitation.
• Guarda - August »
  The month with the least rainfall in Guarda is August, when the rain falls for 2.7 days and typically collects 6mm (0.24") of precipitation. With an average relative humidity of 50%, August is the least humid month in Guarda, Portugal.
• Beja - August »
  The months with the least rainfall in Beja are July and August Rain falls for 1 days and accumulates 1mm (0.04") of rain. The least humid month in Beja, Portugal, is August, with an average relative humidity of 47%.