14-day forecast — Porto Updated every hour
Fri · Today · 7 Aug
Clear
+25°
+18°
7%
Sat · Tomorrow · 8 Aug
Clear
+24°
+18°
9%
Sunday · 9 Aug
Clear
+24°
+18°
11%
Monday · 10 Aug
Clear
+24°
+17°
9%
Tuesday · 11 Aug
Clear
+24°
+18°
17%
Wednesday · 12 Aug
Clear
+24°
+17°
9%
Thursday · 13 Aug
Clear
+24°
+18°
7%
Friday · 14 Aug
Clear
+24°
+18°
10%
Saturday · 15 Aug
Clear
+23°
+19°
12%
Sunday · 16 Aug
Clear
+25°
+17°
5%
Monday · 17 Aug
Clear
+24°
+18°
6%
Tuesday · 18 Aug
Clear
+25°
+18°
5%
Wednesday · 19 Aug
Clear
+26°
+18°
4%
Thursday · 20 Aug
Clear
+27°
+20°
3%
About Porto
Portugals näst största stad vid Douroflodens mynning.
Country Portugal
Region Norra Portugal
Continent Europe
Time zone Europe/Lisbon (+01:00)
Latitude 41.1579°
Longitude -8.6291°
Air quality Fair (EAQI 35)
Climate in Porto in September
Normals 8 years · best time to visit · Open-Meteo
Best time to visit Porto : May–September . With good weather, September is a recommended month to visit.
Photo: Wikimedia
August
September
October
Average temperature
▼ 20°C
19°C
▼ 17°C
Highest temperature
▼ 24°C
23°C
▼ 20°C
Lowest temperature
▼ 17°C
16°C
▼ 14°C
Precipitation
▲ 14 mm
78 mm
▲ 203 mm
Days with precipitation
▲ 3 d
7 d
▲ 14 d
Humidity
▼ 77%
74%
▲ 82%
Sunshine hours per day
▼ 12,1 h
10,6 h
▼ 7,8 h
Cloud cover
▲ 12%
15%
▲ 30%
UV index (midday)
▼ 10
7
▼ 5
Day length
13:46
12:28
11:06
Our rating
Perfect
Good
Acceptable
Temperature day by day in September mean + moving average
16° 18° 20° 22° 1 6 11 16 21 26
Precipitation day by day in September mm
0 4.6 9.2 1 6 11 16 21 26
UV index day by day in September midday value, clear-sky
0 5.5 11 1 6 11 16 21 26
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
Other destinations in Europe
Data source
Global weather models — international forecasts
The weather for Porto is based on global weather models (ECMWF, GFS) and national meteorological institutes around the world. Forecasts update every hour; current measurements every 15 minutes. For destinations with a larger time difference from Sweden, local time is shown above.