Porto weather by month & the best time to visit
Portugal · city break · Mediterranean climate
The best time to visit Porto is July — its sunniest month (Sunshine Score 92/100), with August and June close behind. Porto averages about 2,694 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 13 mm of rain in July.
When is the best time to visit Porto?
For sunshine, the best time to visit Porto is July, then August and June. The dullest month is January (29/100, 138 mm of rain). The full month-by-month picture is in the table below.
How sunny is Porto?
Porto gets a lot of sun: around 2,694 hours a year. 63 Sunshine Score points separate July (92) from January (29), so the month you pick matters. It ranks #9 of 19 destinations in Portugal for annual sunshine, above the national median of 2,683 hours. The year's 1,010 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 29 | 13° / 55°F | 8° / 46°F | 138 mm | 1 | 14° / 57°F |
| February | 39 | 14° / 57°F | 8° / 46°F | 97 mm | 2 | 14° / 57°F |
| March | 43 | 15° / 59°F | 9° / 48°F | 112 mm | 4 | 15° / 59°F |
| April | 59 | 17° / 63°F | 11° / 52°F | 91 mm | 5 | 16° / 61°F |
| May | 77 | 19° / 66°F | 13° / 55°F | 60 mm | 7 | 16° / 61°F |
| June | 89 | 22° / 72°F | 15° / 59°F | 32 mm | 8 | 17° / 63°F |
| July | 92 | 24° / 75°F | 16° / 61°F | 13 mm | 8 | 18° / 64°F |
| August | 91 | 25° / 77°F | 16° / 61°F | 22 mm | 7 | 16° / 61°F |
| September | 86 | 24° / 75°F | 16° / 61°F | 49 mm | 6 | 15° / 59°F |
| October | 70 | 20° / 68°F | 14° / 57°F | 137 mm | 3 | 18° / 64°F |
| November | 46 | 16° / 61°F | 11° / 52°F | 137 mm | 2 | 17° / 63°F |
| December | 36 | 14° / 57°F | 9° / 48°F | 122 mm | 1 | 15° / 59°F |
Sea temperature in Porto by month
The sea off Porto is warmest in July at around 18°C / 64°F, and coolest in January at 14°C / 57°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
.jpg/500px-Monumento_a_Carvalho_Ara%C3%BAjo_-_Vila_Real_-_Portugal_(117679264).jpg)
.jpg/500px-Cruzeiro_do_Outeiro_4_(cropped).jpg)
Head-to-head
How Porto compares month by month: Porto vs Lisbon · Porto vs Vigo · Porto vs A Coruña · Porto vs Santiago de Compostela · all comparisons
Porto: questions and answers
What kind of destination is Porto?
Porto is a city break in Portugal with a Mediterranean climate — the sea reaches 18°C at its warmest.
How many hours of sunshine does Porto get a year?
Porto gets about 2,694 hours of sunshine a year, at its best around July.
When is the best time to visit Porto?
The sunniest time to visit Porto is July, when the Sunshine Score peaks at 92/100 (with August and June close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Porto?
January is the least sunny month in Porto, scoring 29/100 with about 138 mm of rain.
What is the sea temperature in Porto?
The sea in Porto ranges from about 14°C (January) to 18°C (July). Month-by-month sea temperatures are on this page.
How strong is the sun in Porto?
The typical midday UV index in Porto peaks around 8 (very high) in June, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
Put the Porto sunshine badge on your site
A compact badge showing Porto's sunshine at a glance — free to embed under CC BY 4.0. Paste this wherever you'd like it to appear:
Live preview — this is exactly what your readers see: