Weather in Portugal in May 2018

Expect 22°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Portugal in May. Check more long-term weather averages for Portugal in May before you book your next holiday to Portugal in 2018. The May weather averages shown below are for Lisbon.

Key weather averages for Portugal in May

  • 22°C maximum daytime temperature in May in Portugal (Lisbon)22
    22°C max day temperature
  • 9 hours of sunshine per day (66% of daylight hours) in May in Portugal9
    9 hours of sunshine per day
  • 8 days with some rainfall in May in Portugal (Lisbon)8
    8 days with some rainfall
  • 13°C minimum night-time temperature in May in Portugal (Lisbon)13
    13°C min night temperature
  • 14 hours of daylight per day in May in Portugal (Lisbon)14
    14 hours of daylight per day
  • No heat & humidity in May in Portugal (Lisbon)0
    No heat & humidity
  • 39 mm monthly rainfall in May in Portugal (Lisbon)39
    39 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Portugal (Lisbon)8
    8 (Very High) UV index
  • 16°C sea temperature in May in Portugal (Lisbon)16
    16°C sea temperature

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

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Guide to Portugal weather in May

The average maximum daytime temperature in Portugal in May is a warm 22°C (72°F). The average night-time temperature is usually a cool 13°C (55°F). There are usually 9 hours of bright sunshine each day, which represents 66% of the 14 hours of daylight.

Expect 39mm (1.5 inches) of rainfall across the whole of May with 8 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 May is 16°C (61°F).

The weather in Portugal in May is represented by Lisbon.

Portugal sunrise & sunset times for May 2018

Browse the sunrise & sunset times for Portugal in May 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
Tuesday, 1st May 2018 06:39 20:29
Wednesday, 2nd May 2018 06:38 20:30
Thursday, 3rd May 2018 06:37 20:31
Friday, 4th May 2018 06:36 20:32
Saturday, 5th May 2018 06:35 20:32
Sunday, 6th May 2018 06:34 20:33
Monday, 7th May 2018 06:32 20:34
Tuesday, 8th May 2018 06:31 20:35
Wednesday, 9th May 2018 06:30 20:36
Thursday, 10th May 2018 06:29 20:37
Friday, 11th May 2018 06:28 20:38
Saturday, 12th May 2018 06:27 20:39
Sunday, 13th May 2018 06:26 20:40
Monday, 14th May 2018 06:26 20:41
Tuesday, 15th May 2018 06:25 20:42
Wednesday, 16th May 2018 06:24 20:43
Thursday, 17th May 2018 06:23 20:44
Friday, 18th May 2018 06:22 20:44
Saturday, 19th May 2018 06:21 20:45
Sunday, 20th May 2018 06:21 20:46
Monday, 21st May 2018 06:20 20:47
Tuesday, 22nd May 2018 06:19 20:48
Wednesday, 23rd May 2018 06:18 20:49
Thursday, 24th May 2018 06:18 20:49
Friday, 25th May 2018 06:17 20:50
Saturday, 26th May 2018 06:17 20:51
Sunday, 27th May 2018 06:16 20:52
Monday, 28th May 2018 06:16 20:53
Tuesday, 29th May 2018 06:15 20:53
Wednesday, 30th May 2018 06:15 20:54
Thursday, 31st May 2018 06:14 20:55
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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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