Weather in Porto in August 2018

Expect 25°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Porto in August. Check more long-term weather averages for Porto in August before you book your next holiday to Portugal in 2018.

Key weather averages for Porto in August

  • 25°C maximum daytime temperature in August in Porto25
    25°C max day temperature
  • 10 hours of sunshine per day (69% of daylight hours) in August in Porto10
    10 hours of sunshine per day
  • 5 days with some rainfall in August in Porto5
    5 days with some rainfall
  • 15°C minimum night-time temperature in August in Porto15
    15°C min night temperature
  • 14 hours of daylight per day in August in Porto14
    14 hours of daylight per day
  • No heat & humidity in August in Porto0
    No heat & humidity
  • 20 mm monthly rainfall in August in Porto20
    20 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Porto8
    8 (Very High) UV index
  • 18°C sea temperature in August 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 August

The average maximum daytime temperature in Porto in August is a warm 25°C (77°F). The average night-time temperature is usually a comfortable 15°C (59°F). There are usually 10 hours of bright sunshine each day, which represents 69% of the 14 hours of daylight.

Expect 20mm (0.8 inches) of rainfall across the whole of August with 5 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

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

The weather in Porto in August is represented by Porto.

Porto sunrise & sunset times for August 2018

Browse the sunrise & sunset times for Porto in August 2018. Select a month to view Porto sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Wednesday, 1st August 2018 06:30 20:51
Thursday, 2nd August 2018 06:31 20:50
Friday, 3rd August 2018 06:32 20:49
Saturday, 4th August 2018 06:33 20:48
Sunday, 5th August 2018 06:34 20:47
Monday, 6th August 2018 06:35 20:45
Tuesday, 7th August 2018 06:36 20:44
Wednesday, 8th August 2018 06:37 20:43
Thursday, 9th August 2018 06:38 20:42
Friday, 10th August 2018 06:39 20:40
Saturday, 11th August 2018 06:40 20:39
Sunday, 12th August 2018 06:41 20:38
Monday, 13th August 2018 06:42 20:36
Tuesday, 14th August 2018 06:43 20:35
Wednesday, 15th August 2018 06:44 20:33
Thursday, 16th August 2018 06:45 20:32
Friday, 17th August 2018 06:46 20:31
Saturday, 18th August 2018 06:47 20:29
Sunday, 19th August 2018 06:48 20:28
Monday, 20th August 2018 06:49 20:26
Tuesday, 21st August 2018 06:50 20:25
Wednesday, 22nd August 2018 06:51 20:23
Thursday, 23rd August 2018 06:52 20:22
Friday, 24th August 2018 06:53 20:20
Saturday, 25th August 2018 06:54 20:19
Sunday, 26th August 2018 06:55 20:17
Monday, 27th August 2018 06:56 20:15
Tuesday, 28th August 2018 06:57 20:14
Wednesday, 29th August 2018 06:58 20:12
Thursday, 30th August 2018 06:59 20:11
Friday, 31st August 2018 07:00 20:09
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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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