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Best time to visit Portugal

In Lisbon: May to September — the months averaging 18–27 °C by day. 7 of the twelve months clear that band in Lisbon, so this is the driest run of 5 in a row.

Portugal is not one climate. Each reference city below is answered on its own numbers.

Lisbon

  1. January: 14 °C by day, 9 °C at night, 70 mm of rain
  2. February: 15 °C by day, 9 °C at night, 54 mm of rain
  3. March: 17 °C by day, 11 °C at night, 57 mm of rain
  4. April: 18 °C by day, 12 °C at night, 53 mm of rain
  5. May: 21 °C by day, 14 °C at night, 38 mm of rain, recommended
  6. June: 24 °C by day, 17 °C at night, 13 mm of rain, recommended
  7. July: 26 °C by day, 18 °C at night, 3 mm of rain, recommended
  8. August: 27 °C by day, 19 °C at night, 4 mm of rain, recommended
  9. September: 25 °C by day, 18 °C at night, 33 mm of rain, recommended
  10. October: 22 °C by day, 16 °C at night, 80 mm of rain
  11. November: 17 °C by day, 12 °C at night, 86 mm of rain
  12. December: 15 °C by day, 10 °C at night, 88 mm of rain
Warmest
August, 27 °C
Coolest
January, 14 °C
Driest
July, 3 mm
Wettest
December, 88 mm

Porto

May to September — 18–27 °C by day. 7 of the twelve months clear that band in Porto, so this is the driest run of 5 in a row.

  1. January: 13 °C by day, 7 °C at night, 160 mm of rain
  2. February: 14 °C by day, 7 °C at night, 109 mm of rain
  3. March: 16 °C by day, 8 °C at night, 133 mm of rain
  4. April: 18 °C by day, 10 °C at night, 123 mm of rain
  5. May: 20 °C by day, 12 °C at night, 91 mm of rain, recommended
  6. June: 23 °C by day, 15 °C at night, 43 mm of rain, recommended
  7. July: 25 °C by day, 17 °C at night, 24 mm of rain, recommended
  8. August: 26 °C by day, 17 °C at night, 24 mm of rain, recommended
  9. September: 24 °C by day, 16 °C at night, 69 mm of rain, recommended
  10. October: 20 °C by day, 14 °C at night, 177 mm of rain
  11. November: 16 °C by day, 10 °C at night, 166 mm of rain
  12. December: 14 °C by day, 8 °C at night, 183 mm of rain
Warmest
August, 26 °C
Coolest
January, 13 °C
Driest
July, 24 mm
Wettest
December, 183 mm

Faro

May to September — 18–27 °C by day. 8 of the twelve months clear that band in Faro, so this is the driest run of 5 in a row.

  1. January: 15 °C by day, 11 °C at night, 56 mm of rain
  2. February: 16 °C by day, 11 °C at night, 49 mm of rain
  3. March: 17 °C by day, 12 °C at night, 60 mm of rain
  4. April: 19 °C by day, 13 °C at night, 42 mm of rain
  5. May: 22 °C by day, 16 °C at night, 25 mm of rain, recommended
  6. June: 24 °C by day, 18 °C at night, 6 mm of rain, recommended
  7. July: 27 °C by day, 20 °C at night, 1 mm of rain, recommended
  8. August: 27 °C by day, 21 °C at night, 2 mm of rain, recommended
  9. September: 25 °C by day, 19 °C at night, 21 mm of rain, recommended
  10. October: 22 °C by day, 17 °C at night, 70 mm of rain
  11. November: 18 °C by day, 14 °C at night, 71 mm of rain
  12. December: 16 °C by day, 12 °C at night, 90 mm of rain
Warmest
July, 27 °C
Coolest
January, 15 °C
Driest
July, 1 mm
Wettest
December, 90 mm

How this is worked out: a month qualifies when its mean daytime high falls between 18 °C and 27 °C. Where more than five qualify, the answer is the driest run of consecutive qualifying months; where none do, it is the driest three months in a row if the year is hot throughout, or the warmest three if it never gets there. The figures are the thirty-year monthly averages charted below, and they are averages, not a forecast — any single year can miss them by a wide margin.

Lisbon

Long-term averages for Lisbon: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
51015202530°C0100mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 14 °C, Night 9 °C, Rain 70 mm. February: Day 15 °C, Night 9 °C, Rain 54 mm. March: Day 17 °C, Night 11 °C, Rain 57 mm. April: Day 18 °C, Night 12 °C, Rain 53 mm. May: Day 21 °C, Night 14 °C, Rain 38 mm. June: Day 24 °C, Night 17 °C, Rain 13 mm. July: Day 26 °C, Night 18 °C, Rain 3 mm. August: Day 27 °C, Night 19 °C, Rain 4 mm. September: Day 25 °C, Night 18 °C, Rain 33 mm. October: Day 22 °C, Night 16 °C, Rain 80 mm. November: Day 17 °C, Night 12 °C, Rain 86 mm. December: Day 15 °C, Night 10 °C, Rain 88 mm
Show the monthly table
Lisbon
MonthDay (°C)Night (°C)Rain (mm)
January14970
February15954
March171157
April181253
May211438
June241713
July26183
August27194
September251833
October221680
November171286
December151088

Porto

Long-term averages for Porto: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
51015202530°C0200mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 13 °C, Night 7 °C, Rain 160 mm. February: Day 14 °C, Night 7 °C, Rain 109 mm. March: Day 16 °C, Night 8 °C, Rain 133 mm. April: Day 18 °C, Night 10 °C, Rain 123 mm. May: Day 20 °C, Night 12 °C, Rain 91 mm. June: Day 23 °C, Night 15 °C, Rain 43 mm. July: Day 25 °C, Night 17 °C, Rain 24 mm. August: Day 26 °C, Night 17 °C, Rain 24 mm. September: Day 24 °C, Night 16 °C, Rain 69 mm. October: Day 20 °C, Night 14 °C, Rain 177 mm. November: Day 16 °C, Night 10 °C, Rain 166 mm. December: Day 14 °C, Night 8 °C, Rain 183 mm
Show the monthly table
Porto
MonthDay (°C)Night (°C)Rain (mm)
January137160
February147109
March168133
April1810123
May201291
June231543
July251724
August261724
September241669
October2014177
November1610166
December148183

Faro

Long-term averages for Faro: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
1015202530°C0100mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 15 °C, Night 11 °C, Rain 56 mm. February: Day 16 °C, Night 11 °C, Rain 49 mm. March: Day 17 °C, Night 12 °C, Rain 60 mm. April: Day 19 °C, Night 13 °C, Rain 42 mm. May: Day 22 °C, Night 16 °C, Rain 25 mm. June: Day 24 °C, Night 18 °C, Rain 6 mm. July: Day 27 °C, Night 20 °C, Rain 1 mm. August: Day 27 °C, Night 21 °C, Rain 2 mm. September: Day 25 °C, Night 19 °C, Rain 21 mm. October: Day 22 °C, Night 17 °C, Rain 70 mm. November: Day 18 °C, Night 14 °C, Rain 71 mm. December: Day 16 °C, Night 12 °C, Rain 90 mm
Show the monthly table
Faro
MonthDay (°C)Night (°C)Rain (mm)
January151156
February161149
March171260
April191342
May221625
June24186
July27201
August27212
September251921
October221770
November181471
December161290

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Sources (1)

What this guide was checked against. Rules and prices change — follow the official link before you rely on a detail.