| < September >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Sea or Water Temp
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average sea tempeature is 16 °C (60.8 °F).
- The average temperature in Porto in September is somewhat warm at 19 °C (66.2 °F).
- Afternoons can be fairly hot with average high temperatures reaching 24 °C (75.2 °F).
- Overnight temperatures are generally mild with an average low of 13.9 °C (57 °F).
- The variation/ range of diurnal average temperatures in September is 10.1 °C (18.2 °F).
- The weather in September is marginally dry with rain at times. Only 64mm (2.5in) of water descends across an average of 10 days.
- The skies in Porto are slightly sunny having an average of a welcome 7:40 of blazing solar radiation daily.
- The shortest day is 11:45 long and the longest day is 13:06 long with an average length of 12:25.
- There are approximately 4:34 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 62.7% of daylight hours and cloudy 37.3% of daylight hours.
Check the distance to and compare the Porto September averages with somewhere beginning with:
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Weather Trend Graph for September in Porto , Portugal
Navigate to September Weather in Locations Surrounding Porto :
- Gijon, Spain - 362.8 kms (225.4 miles) NE
- La Coruna, Spain - 248.8 kms (154.6 miles) N
- Oviedo, Spain - 333.6 kms (207.3 miles) NE
- Oviedo, Dominican Republic - 334.1 kms (207.6 miles) NE
- Melgašo, Viana Do Castelo, Portugal - 112.8 kms (70.1 miles) NNE
- Braganca, Portugal - 172.3 kms (107.1 miles) ENE
- Valladolid, Spain - 324.9 kms (201.9 miles) ENE
- Salamanca/ Matacan, Spain - 260.8 kms (162.1 miles) E
- Penhas Douradas, Portugal - 119 kms (74 miles) SE
- Madrid (B), Spain - 422.1 kms (262.3 miles) E
- Coimbra, Portugal - 105.1 kms (65.3 miles) S
- Caceres, Spain - 266.2 kms (165.4 miles) SE
- Portalegre, Portugal - 228.9 kms (142.3 miles) SSE
- Badajoz, Spain - 292.1 kms (181.5 miles) SSE
- Evora, Portugal - 291.6 kms (181.2 miles) SSE
- Beja, Portugal - 352.2 kms (218.9 miles) S