When to go
The Best Time to Visit Porto
Month-by-month climate data for Porto, Portugal — daily highs and lows, rain days, and an honest verdict for every month of the year.
May–June, September–October. Long sunny days without August heat; harvest season in the Douro valley peaks in September.
Warmest in Porto: Jul (24°C / 75°F) · Coolest: Jan (14°C / 57°F) · Wettest: Oct (~16 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Porto climate, month by month
January
14° / 7°C
~11 rain days
Good
February
16° / 9°C
~10 rain days
Good
March
16° / 9°C
~14 rain days
Good
April
18° / 11°C
~12 rain days
Excellent
May
20° / 13°C
~11 rain days
Excellent
June
22° / 15°C
~9 rain days
Excellent
July
24° / 16°C
~4 rain days
Excellent
August
24° / 16°C
~3 rain days
Excellent
September
23° / 16°C
~8 rain days
Excellent
October
21° / 14°C
~16 rain days
Good
November
17° / 11°C
~14 rain days
Good
December
15° / 9°C
~16 rain days
Good
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