When to go · Porto
Porto in September
Great month. Inside Porto's best window: May–Sep.
Key facts
- Verdict
- Great
- Temperature
- 24°C (75°F)75°F (24°C) / 15°C (59°F)59°F (15°C)
- average high / low
- Rain days
- 7
- Crowds
- Medium
- Portugal overall
- Prices
- Medium
- Portugal overall
Verdict
Inside Porto's best window: May–Sep.
Is another month better than September?
No other month rates higher than September for Porto in this guide.
Weather in September
- PortoHighs around 24 °C (75 °F), lows around 15 °C (59 °F), rain on about 7 daysHighs around 75 °F (24 °C), lows around 59 °F (15 °C), rain on about 7 days
- Porto and the north, Portugal · Porto, Braga, Guimarães, Douro Valley, Peneda-Gerêsbest weather
The wettest region; green and mild. The Douro Valley bakes in summer and harvest is late September.
Crowds and prices
- Crowds · Portugal overall
- Medium
- Prices · Portugal overall
- Medium
Portugal overall: Warm sea, thinner crowds; grape harvest in the Douro.
Compare two months
Weather, crowds and prices for any two months in Porto, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 24 °C (75 °F)75 °F (24 °C)
May: 21 °C (70 °F)70 °F (21 °C)
Night low
Sep: 15 °C (59 °F)59 °F (15 °C)
May: 13 °C (55 °F)55 °F (13 °C)
Rain days
Sep: 7 (better)
May: 10
Crowds
Sep: Medium
May: Medium
Prices
Sep: Medium
May: Medium
Festivals listed
Sep: 0
May: 0
September: Inside Porto's best window: May–Sep.
May: Inside Porto's best window: May–Sep.
Porto: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.