Temperature
Pleasant by day, brisk at night.
69°Ftypical May high
Typical range
May climate
May in Porto
Portugal · Europe
Mild days and plenty of sun.
One of the best months here
Mid to late
Daytime high
69°F
Lows around 56°F
Rain
Several rainy days
Sun
12 h/day
Air feel
Comfortable
Sea temp
60°F
Too cold for swimming
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 11 wet days this month.
35%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
12.1 hMay sunshine
Heat & humidity by month
ComfortableMay
Easy airWarm airHot airHumid air
Hourly temperature pattern
In May, afternoons feel about 65° and nights feel near 55°.
Very coldColdCoolComfortableWarmNight hours
Clear sky
Partly cloudy skies this month.
46%May Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in May.
7 mphMay Light breeze
Sea temperature
60°FMay sea temp
More detailIncludes daypart comfort
Typical May day
May late afternoons are around 68°F, easing to about 65°F in early evening.
Avg temp Typical range
Morning62°F
Rain21%
Cloud57%
Humid airLow
Sun intensityModerate
Midday67°F
Rain27%
Cloud55%
Humid airLow
Sun intensityStrong
Late afternoon68°F
Rain26%
Cloud52%
Humid airLow
Sun intensityStrong
Early evening65°F
Rain18%
Cloud47%
Humid airLow
Sun intensityLow
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 56 | 46 | 6.2 | 13 | 6.8 | 84 | 57 |
| Feb | 58 | 46 | 4.1 | 10 | 8.3 | 79 | 57 |
| Mar | 62 | 49 | 5.2 | 12 | 9.5 | 76 | 57 |
| Apr | 65 | 52 | 5.0 | 12 | 11.0 | 76 | 58 |
| May | 69 | 56 | 3.5 | 11 | 12.1 | 76 | 60 |
| Jun | 74 | 61 | 1.8 | 7 | 13.5 | 76 | 63 |
| Jul | 78 | 64 | 0.9 | 4 | 13.6 | 74 | 66 |
| Aug | 79 | 64 | 0.9 | 4 | 12.4 | 74 | 67 |
| Sep | 76 | 62 | 2.6 | 7 | 10.9 | 75 | 67 |
| Oct | 69 | 58 | 7.0 | 13 | 8.6 | 80 | 65 |
| Nov | 61 | 51 | 6.5 | 13 | 7.1 | 83 | 61 |
| Dec | 57 | 47 | 6.7 | 13 | 6.6 | 84 | 59 |
Similar climates
Similar
Similar travel styleBarcelonaSpainSimilar travel styleLisbonPortugalSimilar travel styleCataniaItalySimilar travel styleIstanbulTurkey
Want a side-by-side climate view? Compare Porto with Barcelona.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology