Weather in Porto in September 2017

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

What is the weather like in Porto in September?
How hot is Porto in September? 24°C
How sunny is Porto in September? 8 sunshine hours/day
How wet is Porto in September? 62 mm rainfall
How warm is the sea around Porto in September? 18°C

Weather in Porto in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All months

  • 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

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

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More about Porto

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More about Porto weather in September

The average maximum daytime temperature in Porto in September is a warm 24°C (75°F). There are usually 8 hours of bright sunshine each day, which represents 60% of the 12 hours of daylight. The average sea temperature in and around Porto in September is 18°C (64°F).

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 night-time temperature is usually a comfortable 14°C (57°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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