Lisbon vs Porto

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Lisbon edges ahead as the better destination in August. Lisbon offers 13 hours of daily sunshine with only 1 rain days, while Porto sees 12 sunshine hours and 4 rain days.

Lisbon sits in the comfortable travel range at 27°C. Porto is also comfortable at 26°C.

For travelers who prioritize dry weather, Lisbon is the stronger choice in August. Lisbon receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Lisbon reaches an average high of 27°C (81°F) and drops to 19°C (66°F) at night during August. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Porto averages 26°C (79°F) for the high and 17°C (63°F) for the low, with a daily range of 9°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in August.

Lisbon receives approximately 4 mm of rainfall across 1 rain days during August. Rain is rare this month, so dry conditions are likely.

Porto sees 30 mm over 4 rain days. That makes Lisbon the drier option by 3 rain days and 26 mm of total precipitation.

Both cities share similar humidity levels at 65%.