Sea Temperature in Lisbon in August

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Complete information on the sea temperature range in the Atlantic Ocean in Lisbon in August. Historical daily data. Climate details for August. Tips on swimming conditions and beach relaxation in Lisbon. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Lisbon Climate and Swimming Opportunities in August

Lisbon lies within the Lisbon metropolitan area in Portugal. The average daytime temperature in Lisbon in August is 24°C (75°F), while the nighttime average is 18°C (65°F). There are typically two rainy days during the month, with a total precipitation of 7 mm (0.3 inches). The daylight duration in August in Lisbon is 14 hours, with an average of 11 hours of sunshine per day. The average wind speed in August is 15 km/h (9 mph), and the humidity level is around 61%.

The water temperature in Lisbon in August ranges from 18°C to 20°C (64°F to 68°F). At the beginning of the month, the average temperature is around 19°C (66°F), shifting to 19°C (66°F) by mid-August and reaching 20°C (68°F) in the last ten days. Overall, the average sea temperature in Lisbon for August is 19°C (66°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.

Frequently Asked Questions About Water Temperatures in August in Lisbon