Weather in Portugal in August 2018

Expect 28°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Portugal in August. Check more long-term weather averages for Portugal in August before you book your next holiday to Portugal in 2018. The August weather averages shown below are for Lisbon.

Key weather averages for Portugal in August

  • 28°C maximum daytime temperature in August in Portugal (Lisbon)28
    28°C max day temperature
  • 11 hours of sunshine per day (80% of daylight hours) in August in Portugal11
    11 hours of sunshine per day
  • 2 days with some rainfall in August in Portugal (Lisbon)2
    2 days with some rainfall
  • 18°C minimum night-time temperature in August in Portugal (Lisbon)18
    18°C min night temperature
  • 14 hours of daylight per day in August in Portugal (Lisbon)14
    14 hours of daylight per day
  • Moderate heat & humidity in August in Portugal (Lisbon)M
    Moderate heat & humidity
  • 5 mm monthly rainfall in August in Portugal (Lisbon)5
    5 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Portugal (Lisbon)8
    8 (Very High) UV index
  • 19°C sea temperature in August in Portugal (Lisbon)19
    19°C sea temperature

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

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Guide to Portugal weather in August

The average maximum daytime temperature in Portugal in August is a warm 28°C (82°F) with moderate heat & humidity. The average night-time temperature is usually a comfortable 18°C (64°F). There are usually 11 hours of bright sunshine each day, which represents 80% of the 14 hours of daylight.

Expect 5mm (0.2 inches) of rainfall across the whole of August with 2 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 Portugal in August is 19°C (66°F).

The weather in Portugal in August is represented by Lisbon.

Portugal sunrise & sunset times for August 2018

Browse the sunrise & sunset times for Portugal in August 2018. Select a month to view Portugal sunrise & sunset times for the next twelve months. The Portugal sunrise & sunset times shown below are for Lisbon.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st August 2018 06:38 20:47
Thursday, 2nd August 2018 06:39 20:46
Friday, 3rd August 2018 06:40 20:45
Saturday, 4th August 2018 06:40 20:44
Sunday, 5th August 2018 06:41 20:43
Monday, 6th August 2018 06:42 20:42
Tuesday, 7th August 2018 06:43 20:41
Wednesday, 8th August 2018 06:44 20:40
Thursday, 9th August 2018 06:45 20:39
Friday, 10th August 2018 06:46 20:37
Saturday, 11th August 2018 06:47 20:36
Sunday, 12th August 2018 06:48 20:35
Monday, 13th August 2018 06:49 20:34
Tuesday, 14th August 2018 06:49 20:32
Wednesday, 15th August 2018 06:50 20:31
Thursday, 16th August 2018 06:51 20:30
Friday, 17th August 2018 06:52 20:29
Saturday, 18th August 2018 06:53 20:27
Sunday, 19th August 2018 06:54 20:26
Monday, 20th August 2018 06:55 20:24
Tuesday, 21st August 2018 06:56 20:23
Wednesday, 22nd August 2018 06:57 20:22
Thursday, 23rd August 2018 06:58 20:20
Friday, 24th August 2018 06:58 20:19
Saturday, 25th August 2018 06:59 20:17
Sunday, 26th August 2018 07:00 20:16
Monday, 27th August 2018 07:01 20:14
Tuesday, 28th August 2018 07:02 20:13
Wednesday, 29th August 2018 07:03 20:11
Thursday, 30th August 2018 07:04 20:10
Friday, 31st August 2018 07:05 20:08
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Check Portugal 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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