This information may change. Always check the official source.Last verified: July 2026 by Ondřej Kadlec
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
Jan14°January: 14 °C by day, 9 °C at night, 70 mm of rain
Feb15°February: 15 °C by day, 9 °C at night, 54 mm of rain
Mar17°March: 17 °C by day, 11 °C at night, 57 mm of rain
Apr18°April: 18 °C by day, 12 °C at night, 53 mm of rain
May21°May: 21 °C by day, 14 °C at night, 38 mm of rain, recommended
Jun24°June: 24 °C by day, 17 °C at night, 13 mm of rain, recommended
Jul26°July: 26 °C by day, 18 °C at night, 3 mm of rain, recommended
Aug27°August: 27 °C by day, 19 °C at night, 4 mm of rain, recommended
Sep25°September: 25 °C by day, 18 °C at night, 33 mm of rain, recommended
Oct22°October: 22 °C by day, 16 °C at night, 80 mm of rain
Nov17°November: 17 °C by day, 12 °C at night, 86 mm of rain
Dec15°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.
Jan13°January: 13 °C by day, 7 °C at night, 160 mm of rain
Feb14°February: 14 °C by day, 7 °C at night, 109 mm of rain
Mar16°March: 16 °C by day, 8 °C at night, 133 mm of rain
Apr18°April: 18 °C by day, 10 °C at night, 123 mm of rain
May20°May: 20 °C by day, 12 °C at night, 91 mm of rain, recommended
Jun23°June: 23 °C by day, 15 °C at night, 43 mm of rain, recommended
Jul25°July: 25 °C by day, 17 °C at night, 24 mm of rain, recommended
Aug26°August: 26 °C by day, 17 °C at night, 24 mm of rain, recommended
Sep24°September: 24 °C by day, 16 °C at night, 69 mm of rain, recommended
Oct20°October: 20 °C by day, 14 °C at night, 177 mm of rain
Nov16°November: 16 °C by day, 10 °C at night, 166 mm of rain
Dec14°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.
Jan15°January: 15 °C by day, 11 °C at night, 56 mm of rain
Feb16°February: 16 °C by day, 11 °C at night, 49 mm of rain
Mar17°March: 17 °C by day, 12 °C at night, 60 mm of rain
Apr19°April: 19 °C by day, 13 °C at night, 42 mm of rain
May22°May: 22 °C by day, 16 °C at night, 25 mm of rain, recommended
Jun24°June: 24 °C by day, 18 °C at night, 6 mm of rain, recommended
Jul27°July: 27 °C by day, 20 °C at night, 1 mm of rain, recommended
Aug27°August: 27 °C by day, 21 °C at night, 2 mm of rain, recommended
Sep25°September: 25 °C by day, 19 °C at night, 21 mm of rain, recommended
Oct22°October: 22 °C by day, 17 °C at night, 70 mm of rain
Nov18°November: 18 °C by day, 14 °C at night, 71 mm of rain
Dec16°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
Show the monthly table
Lisbon
Month
Day (°C)
Night (°C)
Rain (mm)
January
14
9
70
February
15
9
54
March
17
11
57
April
18
12
53
May
21
14
38
June
24
17
13
July
26
18
3
August
27
19
4
September
25
18
33
October
22
16
80
November
17
12
86
December
15
10
88
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
Show the monthly table
Porto
Month
Day (°C)
Night (°C)
Rain (mm)
January
13
7
160
February
14
7
109
March
16
8
133
April
18
10
123
May
20
12
91
June
23
15
43
July
25
17
24
August
26
17
24
September
24
16
69
October
20
14
177
November
16
10
166
December
14
8
183
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).
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