Porto vs Lisbon

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.

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

Porto reaches an average high of 26°C (79°F) and drops to 17°C (63°F) at night during August. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Lisbon averages 27°C (81°F) for the high and 19°C (66°F) for the low, with a daily range of 8°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.

Porto receives approximately 30 mm of rainfall across 4 rain days during August. Rain is occasional, so a light rain jacket should suffice.

Lisbon sees 4 mm over 1 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%.