Weather in Porto in September 2017

Expect 24°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Porto in September. Check more long-term weather averages for Porto in September before you book your next holiday to Portugal in 2017.

Key weather averages for Porto in September

  • 24°C maximum daytime temperature in September in Porto24
    24°C max day temperature
  • 8 hours of sunshine per day (60% of daylight hours) in September in Porto8
    8 hours of sunshine per day
  • 8 days with some rainfall in September in Porto8
    8 days with some rainfall
  • 14°C minimum night-time temperature in September in Porto14
    14°C min night temperature
  • 12 hours of daylight per day in September in Porto12
    12 hours of daylight per day
  • No heat & humidity in September in Porto0
    No heat & humidity
  • 62 mm monthly rainfall in September in Porto62
    62 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Porto6
    6 (High) UV index
  • 18°C sea temperature in September in Porto18
    18°C sea temperature

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Metric (°C / mm)  |  Imperial (°F / inches)

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More about Porto

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Guide to Porto weather in September

The average maximum daytime temperature in Porto in September is a warm 24°C (75°F). The average night-time temperature is usually a comfortable 14°C (57°F). There are usually 8 hours of bright sunshine each day, which represents 60% of the 12 hours of daylight.

Expect 62mm (2.4 inches) of rainfall across the whole of September with 8 days with some rain falling. Maximum UV levels will be high (6 UV index) at midday when the skies are clear.

The average sea temperature in and around Porto in September is 18°C (64°F).

The weather in Porto in September is represented by Porto.

Porto sunrise & sunset times for September 2017

Browse the sunrise & sunset times for Porto in September 2017. Select a month to view Porto sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Friday, 1st September 2017 07:01 20:07
Saturday, 2nd September 2017 07:02 20:05
Sunday, 3rd September 2017 07:03 20:04
Monday, 4th September 2017 07:04 20:02
Tuesday, 5th September 2017 07:05 20:00
Wednesday, 6th September 2017 07:06 19:59
Thursday, 7th September 2017 07:07 19:57
Friday, 8th September 2017 07:08 19:55
Saturday, 9th September 2017 07:09 19:54
Sunday, 10th September 2017 07:10 19:52
Monday, 11th September 2017 07:11 19:50
Tuesday, 12th September 2017 07:12 19:49
Wednesday, 13th September 2017 07:13 19:47
Thursday, 14th September 2017 07:14 19:45
Friday, 15th September 2017 07:15 19:44
Saturday, 16th September 2017 07:16 19:42
Sunday, 17th September 2017 07:17 19:40
Monday, 18th September 2017 07:18 19:38
Tuesday, 19th September 2017 07:19 19:37
Wednesday, 20th September 2017 07:20 19:35
Thursday, 21st September 2017 07:21 19:33
Friday, 22nd September 2017 07:22 19:31
Saturday, 23rd September 2017 07:23 19:30
Sunday, 24th September 2017 07:24 19:28
Monday, 25th September 2017 07:25 19:26
Tuesday, 26th September 2017 07:26 19:25
Wednesday, 27th September 2017 07:27 19:23
Thursday, 28th September 2017 07:28 19:21
Friday, 29th September 2017 07:29 19:20
Saturday, 30th September 2017 07:30 19:18
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Porto weather by month

Check Porto weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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