16-day forecast — Porto
Updated every hour
Thu · Today
Clear
+29°
+19°
1%
Wind14 km/h W
Gusts30 km/h
UV index6 – Moderate
Chance of rain1%
Sunrise07:24
Sunset19:28
Fri · Tomorrow
Clear
+27°
+17°
5%
Wind14 km/h NW
Gusts32 km/h
UV index6 – Moderate
Chance of rain5%
Sunrise07:25
Sunset19:27
Saturday 26/9
Cloudy
+27°
+18°
8%
Wind11 km/h W
Gusts26 km/h
UV index5 – Moderate
Chance of rain8%
Sunrise07:26
Sunset19:25
Sunday 27/9
Cloudy
+25°
+18°
0.7 mm
Wind14 km/h NW
Gusts15 km/h
UV index4 – Moderate
Chance of rain45%
Sunrise07:27
Sunset19:23
Monday 28/9
Cloudy
+24°
+17°
13%
Wind14 km/h W
Gusts32 km/h
UV index6 – High
Chance of rain13%
Sunrise07:28
Sunset19:22
Tuesday 29/9
Showers
+23°
+18°
2.3 mm
Wind25 km/h SW
Gusts44 km/h
UV index5 – Moderate
Chance of rain72%
Sunrise07:29
Sunset19:20
Wednesday 30/9
Clear
+21°
+16°
7.2 mm
Wind15 km/h S
Gusts38 km/h
UV index6 – High
Chance of rain70%
Sunrise07:30
Sunset19:18
Thursday 1/10
Clear
+22°
+14°
6%
Wind15 km/h W
Gusts30 km/h
UV index6 – High
Chance of rain6%
Sunrise07:31
Sunset19:17
Friday 2/10
Cloudy
+18°
+14°
15%
Wind6 km/h W
Gusts14 km/h
UV index5 – Moderate
Chance of rain15%
Sunrise07:32
Sunset19:15
Saturday 3/10
Cloudy
+21°
+16°
19%
Wind11 km/h W
Gusts15 km/h
UV index5 – Moderate
Chance of rain19%
Sunrise07:33
Sunset19:13
Sunday 4/10
Showers
+20°
+17°
3.0 mm
Wind14 km/h SW
Gusts26 km/h
UV index5 – Moderate
Chance of rain82%
Sunrise07:34
Sunset19:11
Monday 5/10
Showers
+19°
+18°
12.7 mm
Wind12 km/h S
Gusts33 km/h
UV index4 – Moderate
Chance of rain94%
Sunrise07:35
Sunset19:10
Tuesday 6/10
Fog
+23°
+17°
0.4 mm
Wind8 km/h W
Gusts18 km/h
UV index5 – Moderate
Chance of rain42%
Sunrise07:36
Sunset19:08
Wednesday 7/10
Partly cloudy
+25°
+18°
10%
Wind12 km/h W
Gusts26 km/h
UV index6 – High
Chance of rain10%
Sunrise07:37
Sunset19:07
Thursday 8/10
Showers
+23°
+16°
7.5 mm
Wind17 km/h W
Gusts26 km/h
UV index4 – Moderate
Chance of rain—
Sunrise07:38
Sunset19:05
Friday 9/10
Showers
+23°
+15°
1.6 mm
Wind17 km/h W
Gusts23 km/h
UV index4 – Moderate
Chance of rain—
Sunrise07:39
Sunset19:03
About Porto
Portweinstadt am Douro — Atlantikklima mit milden Wintern und feuchten Herbsten.
CountryPortugal
RegionNorte
ContinentEurope
Time zoneEurope/Lisbon (+01:00)
Latitude41.1485°
Longitude-8.6110°
Air qualityFair (EAQI 40)
Climate in Porto in September
Normals 8 years · best time to visit · Open-MeteoBest time to visit Porto: May–September. With good weather, September is a recommended month to visit.
| August | September | October | |
|---|---|---|---|
| Average temperature | ▼ 20°C | 19°C | ▼ 17°C |
| Highest temperature | ▼ 24°C | 23°C | ▼ 21°C |
| Lowest temperature | ▼ 17°C | 16°C | ▼ 14°C |
| Sea temperature | ▼ 17,8°C | 16,5°C | ▲ 17,3°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
Precipitation day by day in September mm
UV index day by day in September midday value, clear-sky
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
Other destinations in Europe
Weather Porto
Data source
Global weather models — international forecasts
Weather in Porto (Portugal): current conditions plus a 24-hour and 16-day forecast for planning your trip. Right now on the ground: +21°, clear, wind 4 km/h. Over the next 7 days temperatures range between 16 and 29 °C, with 3 fine days and 10 mm of rain. Climatologically, highs in September are around 23 °C, with a sea temperature of about 17 °C. Best time to visit: usually May–September. Local time (time zone Europe/Lisbon). Data from Open-Meteo and WeatherAPI.