Temperature
Warm by day, mild at night.
79°Ftypical Aug high
Porto is most comfortable in early autumn. Summers are warm and winters are mild. The wettest months are roughly October to January. Humidity is usually low.

Warm by day, mild at night.
One of the driest months, with very little rain.
Plenty of sun this month.
Some hot afternoons, with mostly dry air.
Predominantly clear skies.
Want a side-by-side climate view? Compare Porto with Barcelona.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology