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Porto Weather in September with Sea Temperature

September weather in Porto includes average daytime air +23°C, nighttime +17°C, average sea temperature +19°C. Daily water temperatures usually range from +18°C to +19°C, which is cool for long swims. The tables below also show air temperature, wind, rain and humidity; for near-term water data, open the current 30-day water temperature forecast.
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Averaged values across several years

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water
Tap a date to open detailed weather for that day
SeptemberDayNightSea t°WindPrecipHumidity
1Mon
Clear/Sunny+22°C
Partly Cloudy+17°C
+19°C3 m/s0 mm74%
2Tue
Clear/Sunny+23°C
Clear/Sunny+16°C
+19°C3 m/s0.5 mm76%
3Wed
Clear/Sunny+23°C
Clear/Sunny+17°C
+19°C3 m/s0.2 mm73%
4Thu
Clear/Sunny+24°C
Clear/Sunny+17°C
+19°C3 m/s0.5 mm67%
5Fri
Clear/Sunny+25°C
Clear/Sunny+17°C
+19°C4 m/s1.4 mm67%
6Sat
Clear/Sunny+23°C
Clear/Sunny+17°C
+19°C3 m/s0.2 mm67%
7Sun
Clear/Sunny+24°C
Clear/Sunny+18°C
+19°C4 m/s0.9 mm73%
8Mon
Clear/Sunny+23°C
Clear/Sunny+17°C
+19°C4 m/s0.2 mm73%
9Tue
Clear/Sunny+23°C
Clear/Sunny+17°C
+19°C3 m/s0.6 mm73%
10Wed
Cloudy+24°C
Clear/Sunny+18°C
+19°C2 m/s0.1 mm73%
11Thu
Clear/Sunny+24°C
Clear/Sunny+17°C
+19°C3 m/s0 mm69%
12Fri
Clear/Sunny+24°C
Clear/Sunny+18°C
+19°C3 m/s0.7 mm72%
13Sat
Clear/Sunny+25°C
Clear/Sunny+18°C
+19°C4 m/s1.9 mm66%
14Sun
Clear/Sunny+24°C
Clear/Sunny+18°C
+19°C3 m/s0.9 mm71%
15Mon
Clear/Sunny+23°C
Cloudy+18°C
+19°C3 m/s2 mm73%
16Tue
Clear/Sunny+24°C
Clear/Sunny+17°C
+18°C3 m/s0.6 mm66%
17Wed
Clear/Sunny+24°C
Clear/Sunny+17°C
+18°C4 m/s0.4 mm64%
18Thu
Clear/Sunny+25°C
Clear/Sunny+17°C
+18°C3 m/s0 mm60%
19Fri
Clear/Sunny+23°C
Clear/Sunny+18°C
+19°C3 m/s0.6 mm64%
20Sat
Patchy rain nearby+23°C
Clear/Sunny+17°C
+19°C3 m/s0.3 mm75%
21Sun
Clear/Sunny+22°C
Clear/Sunny+16°C
+18°C4 m/s0.2 mm70%
22Mon
Clear/Sunny+22°C
Clear/Sunny+16°C
+18°C3 m/s0 mm68%
23Tue
Clear/Sunny+22°C
Clear/Sunny+15°C
+19°C3 m/s0.4 mm69%
24Wed
Clear/Sunny+21°C
Clear/Sunny+16°C
+18°C3 m/s0.4 mm69%
25Thu
Clear/Sunny+21°C
Clear/Sunny+16°C
+18°C4 m/s1.3 mm67%
26Fri
Clear/Sunny+21°C
Clear/Sunny+15°C
+18°C4 m/s1.1 mm70%
27Sat
Clear/Sunny+21°C
Partly Cloudy+15°C
+19°C4 m/s0 mm68%
28Sun
Clear/Sunny+22°C
Clear/Sunny+15°C
+19°C4 m/s0 mm67%
29Mon
Clear/Sunny+23°C
Clear/Sunny+15°C
+19°C3 m/s0.4 mm65%
30Tue
Clear/Sunny+23°C
Clear/Sunny+16°C
+19°C3 m/s0 mm64%

Sea water temperature by months

Water +19°C

Day and night air temperature

Day +23°C Night +17°C

Weather highs and lows in Porto for september

Climate in Porto in september

  • Average daytime temperature: +23°C
  • Average nighttime temperature: +17°C
  • Sea water temperature: —
  • Precipitation (monthly average): 16 mm
  • Days with precipitation: 4.3
  • Humidity: 69%
  • Wind: 3 m/s
  • Data: 6 years / coverage 100%

Daily air temperature for the month

Day Night
Tap a date to open detailed weather for that day
SeptemberDayNightSea t°WindPrecipHumidity
1Mon
Clear/Sunny+20°C
Patchy rain nearby+15°C
—3-4 m/s, W0.2 mm76%
2Tue
Patchy rain nearby+21°C
Patchy rain nearby+16°C
—3-5 m/s, SSW0.1 mm82%
3Wed
Patchy rain nearby+22°C
Clear/Sunny+17°C
—3-4 m/s, SSW0 mm86%
4Thu
Clear/Sunny+21°C
Patchy rain nearby+16°C
—3-5 m/s, NW0 mm68%
5Fri
Clear/Sunny+23°C
Clear/Sunny+14°C
—4 m/s, NW0 mm72%
6Sat
Partly Cloudy+21°C
Clear/Sunny+16°C
—3-5 m/s, SW0 mm71%
7Sun
Patchy rain nearby+21°C
Light rain+17°C
—4-5 m/s, WNW2.2 mm81%
8Mon
Clear/Sunny+21°C
Clear/Sunny+14°C
—6-9 m/s, NNW0 mm72%
9Tue
Clear/Sunny+20°C
Clear/Sunny+13°C
—4-5 m/s, NW0 mm73%
10Wed
Light drizzle+20°C
Patchy rain nearby+17°C
—2-3 m/s, WSW0.5 mm92%
11Thu
Clear/Sunny+22°C
Clear/Sunny+15°C
—2-3 m/s, W0 mm82%
12Fri
Clear/Sunny+21°C
Patchy rain nearby+16°C
—3-5 m/s, NW0 mm76%
13Sat
Clear/Sunny+20°C
Clear/Sunny+14°C
—3-4 m/s, NW0 mm71%
14Sun
Clear/Sunny+23°C
Overcast+18°C
—3-5 m/s, NW0 mm77%
15Mon
Clear/Sunny+22°C
Clear/Sunny+17°C
—5-7 m/s, NNW0 mm78%
16Tue
Clear/Sunny+24°C
Clear/Sunny+16°C
—3-4 m/s, NW0 mm64%
17Wed
Clear/Sunny+24°C
Clear/Sunny+17°C
—3-4 m/s, NW0 mm55%
18Thu
Overcast+26°C
Clear/Sunny+18°C
—2-3 m/s, WNW0 mm41%
19Fri
Clear/Sunny+25°C
Partly Cloudy+18°C
—2-3 m/s, SW0.3 mm51%
20Sat
Patchy rain nearby+20°C
Clear/Sunny+16°C
—3-6 m/s, NW0 mm75%
21Sun
Clear/Sunny+19°C
Clear/Sunny+13°C
—6-9 m/s, NNW0 mm69%
22Mon
Clear/Sunny+21°C
Clear/Sunny+11°C
—5-6 m/s, NNW0 mm53%
23Tue
Clear/Sunny+22°C
Clear/Sunny+13°C
—3-5 m/s, NNE0 mm50%
24Wed
Clear/Sunny+24°C
Overcast+16°C
—3-4 m/s, ENE0 mm44%
25Thu
Clear/Sunny+23°C
Clear/Sunny+16°C
—2-3 m/s, WSW0 mm38%
26Fri
Clear/Sunny+21°C
Clear/Sunny+15°C
—2-3 m/s, WSW0 mm50%
27Sat
Partly Cloudy+21°C
Partly Cloudy+14°C
—3-4 m/s, S0 mm53%
28Sun
Clear/Sunny+24°C
Patchy rain nearby+17°C
—4-5 m/s, ENE0.3 mm69%
29Mon
Clear/Sunny+23°C
Clear/Sunny+16°C
—3 m/s, N0 mm64%
30Tue
Clear/Sunny+23°C
Clear/Sunny+17°C
—2 m/s, W0 mm59%

Weather highs and lows in Porto for september

Climate in Porto in september

  • Year: 2025
  • Average daytime temperature: +22°C
  • Average nighttime temperature: +16°C
  • Water temperature: —
  • Precipitation (month): 3.6 mm
  • Days with precipitation: 1
  • Humidity: 66%
  • Wind: 3 m/s

Daily air temperature for the month

Day Night

Daily sea water temperature for the month

Water
Tap a date to open detailed weather for that day
SeptemberDayNightSea t°WindPrecipHumidity
1Sun
Clear/Sunny+22°C
Cloudy+18°C
+19°C3-4 m/s, NW0 mm81%
2Mon
Partly Cloudy+21°C
Partly Cloudy+16°C
+19°C5-8 m/s, NW0.2 mm78%
3Tue
Clear/Sunny+22°C
Clear/Sunny+14°C
+19°C5-8 m/s, NNW0 mm68%
4Wed
Clear/Sunny+24°C
Clear/Sunny+15°C
+19°C5-8 m/s, NNW0 mm62%
5Thu
Clear/Sunny+21°C
Clear/Sunny+16°C
+19°C5-9 m/s, NW0 mm64%
6Fri
Clear/Sunny+18°C
Clear/Sunny+13°C
+19°C4-6 m/s, WNW0 mm71%
7Sat
Clear/Sunny+20°C
Cloudy+15°C
+19°C4-5 m/s, NW2.1 mm78%
8Sun
Clear/Sunny+20°C
Clear/Sunny+14°C
+19°C2-4 m/s, WNW0 mm77%
9Mon
Clear/Sunny+21°C
Clear/Sunny+15°C
+19°C3-5 m/s, NW0 mm77%
10Tue
Clear/Sunny+22°C
Clear/Sunny+16°C
+19°C2-6 m/s, WNW0 mm73%
11Wed
Clear/Sunny+24°C
Clear/Sunny+16°C
+19°C6-10 m/s, NNW0 mm56%
12Thu
Clear/Sunny+22°C
Clear/Sunny+16°C
+19°C6-9 m/s, NNW0 mm73%
13Fri
Clear/Sunny+25°C
Clear/Sunny+16°C
+19°C4 m/s, ENE0 mm61%
14Sat
Clear/Sunny+26°C
Clear/Sunny+17°C
+19°C4-6 m/s, W0 mm40%
15Sun
Clear/Sunny+27°C
Partly Cloudy+17°C
+19°C2-4 m/s, WNW0 mm37%
16Mon
Clear/Sunny+30°C
Clear/Sunny+19°C
+18°C5-7 m/s, ENE0 mm27%
17Tue
Clear/Sunny+28°C
Clear/Sunny+19°C
+18°C6-8 m/s, E0 mm32%
18Wed
Clear/Sunny+25°C
Clear/Sunny+17°C
+18°C4-7 m/s, W0 mm48%
19Thu
Clear/Sunny+22°C
Clear/Sunny+17°C
+19°C3 m/s, WSW0 mm62%
20Fri
Moderate rain at times+21°C
Partly Cloudy+17°C
+19°C2-3 m/s, W0.5 mm78%
21Sat
Clear/Sunny+21°C
Partly Cloudy+17°C
+18°C2-3 m/s, W0 mm73%
22Sun
Partly Cloudy+20°C
Clear/Sunny+16°C
+18°C2-4 m/s, W0 mm80%
23Mon
Clear/Sunny+19°C
Clear/Sunny+13°C
+19°C3-4 m/s, NW0 mm75%
24Tue
Heavy rain at times+18°C
Partly Cloudy+15°C
+18°C3-6 m/s, SSW1.3 mm82%
25Wed
Moderate or heavy rain shower+20°C
Overcast+17°C
+18°C6-8 m/s, SSW5.9 mm97%
26Thu
Cloudy+19°C
Moderate or heavy rain shower+16°C
+18°C7-10 m/s, WSW6.6 mm90%
27Fri
Cloudy+18°C
Cloudy+14°C
+19°C5-6 m/s, NNW0 mm69%
28Sat
Clear/Sunny+21°C
Clear/Sunny+12°C
+19°C3 m/s, SE0 mm58%
29Sun
Clear/Sunny+21°C
Clear/Sunny+15°C
+19°C1-2 m/s, WSW0 mm51%
30Mon
Clear/Sunny+22°C
Clear/Sunny+16°C
+19°C2 m/s, WNW0 mm63%

Weather highs and lows in Porto for september

Climate in Porto in september

  • Year: 2024
  • Average daytime temperature: +22°C
  • Average nighttime temperature: +16°C
  • Water temperature: —
  • Precipitation (month): 16.6 mm
  • Days with precipitation: 4
  • Humidity: 66%
  • Wind: 4 m/s

Daily air temperature for the month

Day Night
Tap a date to open detailed weather for that day
SeptemberDayNightSea t°WindPrecipHumidity
1Fri
Partly Cloudy+21°C
Clear/Sunny+16°C
—3-4 m/s, WNW0 mm83%
2Sat
Patchy rain nearby+21°C
Patchy rain nearby+15°C
—4 m/s, NW2.3 mm76%
3Sun
Cloudy+21°C
Cloudy+17°C
—2-3 m/s, SSW1.4 mm82%
4Mon
Cloudy+23°C
Overcast+17°C
—3-6 m/s, SSW2.8 mm74%
5Tue
Patchy rain nearby+23°C
Moderate or heavy rain shower+18°C
—5-6 m/s, S7.9 mm76%
6Wed
Clear/Sunny+25°C
Clear/Sunny+18°C
—2-3 m/s, SW0 mm70%
7Thu
Clear/Sunny+25°C
Partly Cloudy+19°C
—3-4 m/s, SW0 mm68%
8Fri
Clear/Sunny+24°C
Cloudy+19°C
—2-4 m/s, SW0 mm75%
9Sat
Patchy rain nearby+22°C
Moderate or heavy rain shower+18°C
—3-6 m/s, SSW2.9 mm84%
10Sun
Cloudy+22°C
Cloudy+18°C
—2-3 m/s, SW0.1 mm80%
11Mon
Patchy rain nearby+22°C
Cloudy+17°C
—2-3 m/s, W0.1 mm80%
12Tue
Patchy rain nearby+22°C
Clear/Sunny+17°C
—2-4 m/s, NW0.1 mm80%
13Wed
Clear/Sunny+25°C
Clear/Sunny+18°C
—2-3 m/s, WNW0 mm70%
14Thu
Clear/Sunny+27°C
Clear/Sunny+20°C
—2-4 m/s, W0 mm58%
15Fri
Clear/Sunny+23°C
Clear/Sunny+18°C
—2-3 m/s, WSW0 mm74%
16Sat
Heavy rain at times+20°C
Cloudy+17°C
—5-6 m/s, S3.8 mm79%
17Sun
Patchy rain nearby+19°C
Overcast+16°C
—7-9 m/s, SSE2.3 mm83%
18Mon
Clear/Sunny+21°C
Patchy rain nearby+16°C
—4-5 m/s, WNW0.1 mm81%
19Tue
Clear/Sunny+21°C
Clear/Sunny+16°C
—2-3 m/s, WNW0 mm73%
20Wed
Patchy rain nearby+20°C
Clear/Sunny+16°C
—3-5 m/s, SW0.1 mm80%
21Thu
Partly Cloudy+19°C
Patchy rain nearby+16°C
—5-8 m/s, WNW1 mm81%
22Fri
Cloudy+20°C
Cloudy+15°C
—2-3 m/s, WSW0 mm71%
23Sat
Clear/Sunny+21°C
Clear/Sunny+14°C
—2-3 m/s, NW0 mm66%
24Sun
Clear/Sunny+23°C
Clear/Sunny+16°C
—2 m/s, WSW0 mm60%
25Mon
Clear/Sunny+24°C
Clear/Sunny+16°C
—2-3 m/s, WNW0 mm59%
26Tue
Clear/Sunny+22°C
Clear/Sunny+18°C
—3-5 m/s, NW0 mm74%
27Wed
Clear/Sunny+22°C
Clear/Sunny+17°C
—2 m/s, W0 mm64%
28Thu
Clear/Sunny+23°C
Clear/Sunny+17°C
—2-3 m/s, WSW0 mm74%
29Fri
Clear/Sunny+25°C
Clear/Sunny+18°C
—3-4 m/s, NNW0 mm74%
30Sat
Clear/Sunny+28°C
Clear/Sunny+21°C
—2-3 m/s, WSW0 mm55%

Weather highs and lows in Porto for september

Climate in Porto in september

  • Year: 2023
  • Average daytime temperature: +23°C
  • Average nighttime temperature: +17°C
  • Water temperature: —
  • Precipitation (month): 24.9 mm
  • Days with precipitation: 8
  • Humidity: 73%
  • Wind: 3 m/s

Daily air temperature for the month

Day Night
Tap a date to open detailed weather for that day
SeptemberDayNightSea t°WindPrecipHumidity
1Thu
Clear/Sunny+23°C
Clear/Sunny+16°C
—2-3 m/s, W0 mm76%
2Fri
Clear/Sunny+21°C
Cloudy+16°C
—2-4 m/s, WNW0.1 mm84%
3Sat
Clear/Sunny+21°C
Partly Cloudy+16°C
—2-4 m/s, WNW0 mm77%
4Sun
Patchy rain nearby+23°C
Partly Cloudy+16°C
—4-6 m/s, SW0.2 mm80%
5Mon
Patchy rain nearby+22°C
Patchy rain nearby+17°C
—5-7 m/s, SSW0.3 mm86%
6Tue
Moderate rain at times+21°C
Moderate rain at times+16°C
—3-5 m/s, SW1.4 mm82%
7Wed
Cloudy+21°C
Patchy rain nearby+16°C
—3-4 m/s, SW0.2 mm80%
8Thu
Overcast+21°C
Patchy rain nearby+18°C
—2-4 m/s, SSE0.1 mm88%
9Fri
Clear/Sunny+24°C
Partly Cloudy+18°C
—2-3 m/s, W0 mm82%
10Sat
Clear/Sunny+25°C
Clear/Sunny+18°C
—2 m/s, W0 mm73%
11Sun
Clear/Sunny+26°C
Clear/Sunny+17°C
—2-5 m/s, SW0 mm74%
12Mon
Moderate rain at times+24°C
Overcast+19°C
—5-7 m/s, SSE3.9 mm80%
13Tue
Moderate or heavy rain shower+21°C
Heavy rain at times+19°C
—8 m/s, SSE6.8 mm84%
14Wed
Patchy rain nearby+22°C
Moderate rain at times+18°C
—6-7 m/s, S2.3 mm86%
15Thu
Patchy rain nearby+23°C
Moderate or heavy rain shower+18°C
—3 m/s, S10.3 mm84%
16Fri
Clear/Sunny+24°C
Clear/Sunny+18°C
—1-3 m/s, NW0 mm78%
17Sat
Clear/Sunny+28°C
Clear/Sunny+19°C
—2-3 m/s, W0 mm66%
18Sun
Clear/Sunny+29°C
Clear/Sunny+20°C
—3-5 m/s, W0 mm46%
19Mon
Clear/Sunny+28°C
Partly Cloudy+21°C
—2 m/s, WSW0 mm48%
20Tue
Clear/Sunny+27°C
Cloudy+19°C
—2-3 m/s, WSW0 mm70%
21Wed
Clear/Sunny+25°C
Clear/Sunny+19°C
—2-3 m/s, WSW0 mm68%
22Thu
Clear/Sunny+25°C
Clear/Sunny+18°C
—1-3 m/s, WSW0 mm71%
23Fri
Partly Cloudy+22°C
Partly Cloudy+17°C
—2-4 m/s, W0 mm77%
24Sat
Clear/Sunny+23°C
Clear/Sunny+15°C
—5-8 m/s, NNW0 mm70%
25Sun
Clear/Sunny+23°C
Clear/Sunny+14°C
—5-6 m/s, NNW0 mm59%
26Mon
Clear/Sunny+22°C
Clear/Sunny+14°C
—4-6 m/s, NW0 mm56%
27Tue
Clear/Sunny+22°C
Clear/Sunny+14°C
—4-6 m/s, NNW0 mm61%
28Wed
Cloudy+21°C
Clear/Sunny+16°C
—5-6 m/s, NW0 mm79%
29Thu
Overcast+20°C
Patchy rain nearby+15°C
—5-7 m/s, NW2.2 mm76%
30Fri
Clear/Sunny+21°C
Clear/Sunny+13°C
—4-5 m/s, NNW0 mm71%

Weather highs and lows in Porto for september

Climate in Porto in september

  • Year: 2022
  • Average daytime temperature: +23°C
  • Average nighttime temperature: +17°C
  • Water temperature: —
  • Precipitation (month): 27.8 mm
  • Days with precipitation: 6
  • Humidity: 74%
  • Wind: 3 m/s

Daily air temperature for the month

Day Night
Tap a date to open detailed weather for that day
SeptemberDayNightSea t°WindPrecipHumidity
1Wed
Clear/Sunny+24°C
Partly Cloudy+18°C
—2-3 m/s, NW0 mm70%
2Thu
Clear/Sunny+23°C
Clear/Sunny+17°C
—2-4 m/s, WSW0 mm80%
3Fri
Clear/Sunny+23°C
Clear/Sunny+17°C
—2-3 m/s, W0 mm80%
4Sat
Clear/Sunny+24°C
Clear/Sunny+16°C
—2 m/s, W0 mm76%
5Sun
Clear/Sunny+29°C
Clear/Sunny+18°C
—2 m/s, WSW0 mm56%
6Mon
Cloudy+26°C
Partly Cloudy+19°C
—2-3 m/s, WSW0 mm57%
7Tue
Patchy rain nearby+25°C
Moderate rain at times+19°C
—5-7 m/s, SSW0.8 mm81%
8Wed
Patchy rain nearby+23°C
Moderate rain at times+18°C
—4-6 m/s, SSW1.3 mm87%
9Thu
Cloudy+23°C
Patchy rain nearby+18°C
—2-4 m/s, W0.8 mm82%
10Fri
Overcast+24°C
Overcast+18°C
—2-4 m/s, WSW0 mm79%
11Sat
Clear/Sunny+24°C
Clear/Sunny+17°C
—2 m/s, WNW0 mm73%
12Sun
Partly Cloudy+25°C
Clear/Sunny+18°C
—2-3 m/s, SW0 mm74%
13Mon
Partly Cloudy+26°C
Partly Cloudy+19°C
—3-4 m/s, SSE4.8 mm68%
14Tue
Moderate or heavy rain shower+21°C
Heavy rain at times+18°C
—2 m/s, SE2.8 mm86%
15Wed
Heavy rain at times+21°C
Cloudy+18°C
—1-3 m/s, W1.8 mm89%
16Thu
Clear/Sunny+24°C
Clear/Sunny+17°C
—2-4 m/s, NW0 mm79%
17Fri
Patchy rain nearby+22°C
Clear/Sunny+17°C
—3-5 m/s, NW0.1 mm80%
18Sat
Clear/Sunny+23°C
Clear/Sunny+15°C
—4-6 m/s, NNW0 mm71%
19Sun
Clear/Sunny+23°C
Clear/Sunny+15°C
—4-7 m/s, NW0 mm68%
20Mon
Clear/Sunny+25°C
Clear/Sunny+14°C
—5-6 m/s, N0 mm64%
21Tue
Clear/Sunny+24°C
Clear/Sunny+16°C
—4-5 m/s, ENE0 mm50%
22Wed
Clear/Sunny+23°C
Clear/Sunny+17°C
—4-5 m/s, NNE0 mm52%
23Thu
Cloudy+24°C
Overcast+17°C
—3-4 m/s, SSW0.1 mm61%
24Fri
Patchy rain nearby+21°C
Patchy rain nearby+17°C
—2-4 m/s, W0.5 mm81%
25Sat
Patchy rain nearby+20°C
Partly Cloudy+17°C
—4-5 m/s, S1.9 mm88%
26Sun
Clear/Sunny+20°C
Cloudy+16°C
—3-4 m/s, SW0 mm84%
27Mon
Clear/Sunny+22°C
Partly Cloudy+16°C
—3 m/s, WNW0.3 mm81%
28Tue
Clear/Sunny+21°C
Partly Cloudy+15°C
—5-6 m/s, NW0 mm68%
29Wed
Clear/Sunny+24°C
Clear/Sunny+13°C
—4-6 m/s, NNW0 mm68%
30Thu
Clear/Sunny+22°C
Clear/Sunny+14°C
—3-4 m/s, NNW0 mm64%

Weather highs and lows in Porto for september

Climate in Porto in september

  • Year: 2021
  • Average daytime temperature: +23°C
  • Average nighttime temperature: +17°C
  • Water temperature: —
  • Precipitation (month): 15.2 mm
  • Days with precipitation: 5
  • Humidity: 73%
  • Wind: 3 m/s

Daily air temperature for the month

Day Night
Tap a date to open detailed weather for that day
SeptemberDayNightSea t°WindPrecipHumidity
1Tue
Clear/Sunny+23°C
Partly Cloudy+18°C
—4-5 m/s, NW0 mm56%
2Wed
Clear/Sunny+28°C
Clear/Sunny+18°C
—3-5 m/s, NNW0 mm57%
3Thu
Clear/Sunny+30°C
Clear/Sunny+19°C
—2 m/s, WNW0 mm43%
4Fri
Clear/Sunny+28°C
Clear/Sunny+21°C
—2-4 m/s, WNW0 mm44%
5Sat
Clear/Sunny+29°C
Clear/Sunny+20°C
—2-4 m/s, NW0 mm50%
6Sun
Clear/Sunny+29°C
Clear/Sunny+21°C
—3-4 m/s, NW0 mm52%
7Mon
Clear/Sunny+29°C
Clear/Sunny+22°C
—4-6 m/s, NE0 mm48%
8Tue
Clear/Sunny+30°C
Clear/Sunny+19°C
—5-7 m/s, ENE0 mm38%
9Wed
Clear/Sunny+28°C
Clear/Sunny+19°C
—2-3 m/s, WSW0 mm40%
10Thu
Cloudy+28°C
Clear/Sunny+20°C
—2-3 m/s, W0 mm42%
11Fri
Clear/Sunny+28°C
Clear/Sunny+20°C
—1-3 m/s, W0 mm47%
12Sat
Clear/Sunny+32°C
Clear/Sunny+20°C
—2-3 m/s, WSW0 mm46%
13Sun
Partly Cloudy+30°C
Clear/Sunny+22°C
—2-3 m/s, W0 mm44%
14Mon
Clear/Sunny+23°C
Patchy rain nearby+19°C
—3-4 m/s, WSW0.4 mm76%
15Tue
Cloudy+23°C
Cloudy+19°C
—3-5 m/s, SW0 mm78%
16Wed
Cloudy+24°C
Clear/Sunny+17°C
—2 m/s, WSW0 mm68%
17Thu
Overcast+23°C
Cloudy+16°C
—1-2 m/s, WSW0 mm69%
18Fri
Clear/Sunny+24°C
Overcast+17°C
—3 m/s, SSW0 mm70%
19Sat
Moderate or heavy rain shower+21°C
Patchy rain nearby+18°C
—4-5 m/s, SSW3.3 mm81%
20Sun
Patchy rain nearby+22°C
Moderate rain at times+18°C
—3-4 m/s, W0.9 mm82%
21Mon
Patchy rain nearby+22°C
Clear/Sunny+17°C
—2-3 m/s, SW0.4 mm76%
22Tue
Overcast+22°C
Cloudy+17°C
—3-4 m/s, SW0.1 mm79%
23Wed
Overcast+21°C
Moderate or heavy rain shower+18°C
—4-6 m/s, WSW2.5 mm82%
24Thu
Cloudy+19°C
Clear/Sunny+16°C
—3-5 m/s, NW0.4 mm74%
25Fri
Clear/Sunny+18°C
Cloudy+14°C
—5-6 m/s, NNW0 mm63%
26Sat
Clear/Sunny+19°C
Clear/Sunny+13°C
—4-5 m/s, NNW0 mm66%
27Sun
Clear/Sunny+20°C
Overcast+16°C
—5-6 m/s, NNW0 mm77%
28Mon
Overcast+22°C
Clear/Sunny+13°C
—2-3 m/s, NNW0 mm54%
29Tue
Clear/Sunny+22°C
Clear/Sunny+14°C
—2-4 m/s, NW0 mm56%
30Wed
Clear/Sunny+19°C
Clear/Sunny+14°C
—3-4 m/s, NW0 mm74%

Weather highs and lows in Porto for september

Climate in Porto in september

  • Year: 2020
  • Average daytime temperature: +25°C
  • Average nighttime temperature: +18°C
  • Water temperature: —
  • Precipitation (month): 8 mm
  • Days with precipitation: 2
  • Humidity: 61%
  • Wind: 3 m/s

Weather in Porto in september by year

Year Day Night Precipitation Days with precipitation Water
2025 +22°C +16°C 3.6 mm 1 —
2024 +22°C +16°C 16.6 mm 4 —
2023 +23°C +17°C 24.9 mm 8 —
2022 +23°C +17°C 27.8 mm 6 —
2021 +23°C +17°C 15.2 mm 5 —
2020 +25°C +18°C 8 mm 2 —

Comparison september in Porto with other months

Month Day Night Days with precipitation Sunny days
January +14°C +9°C 8 13
February +15°C +10°C 6 10
March +16°C +10°C 8 12
April +18°C +12°C 6 11
May +20°C +14°C 4 16
June +22°C +16°C 3 15
July +25°C +18°C 1 24
August +25°C +18°C 1 26
September +23°C +17°C 4 16
October +21°C +15°C 11 12
November +17°C +12°C 8 11
December +14°C +10°C 10 10