
Portugal · Europe
The best time to visit Porto is July and August. In summer, daytime highs average 25°C (77°F), with peaks around 33°C (91°F); in winter, nights average 7°C (45°F), dropping to around 1°C (34°F) on the coldest. During the best travel months, the sun shines up to 11 hours per day — ideal for sightseeing and outdoor activities.
Porto on the Atlantic coast of northern Portugal has a noticeably wetter climate than the Algarve: the Atlantic brings the city frequent winter rainfall and mild temperatures of typically 7–14°C (45–57°F). In return, Porto in spring and autumn with temperatures of 16–24°C (61–75°F) and lush green countryside is extraordinarily beautiful. The city of bridges and azulejos shows an almost romantic side on rainy days with wet lanes and steaming pastelerias.
The summer months June to September are the driest and warmest period: temperatures of typically 22–26°C (72–79°F), little rain and sufficient sunshine for the beaches around Matosinhos and the vineyards of the Douro Valley. Porto itself stays cooler than Lisbon — Atlantic breezes keep the heat in check.
A climatic trademark of Porto is the Nevoeiro — the Atlantic fog that settles over city and river especially in the spring and autumn mornings and bathes the terraces of the wine lodges in Vila Nova de Gaia in a diffuse light. It usually lifts by noon, leaving a brilliant afternoon. October is the insider tip for connoisseurs: the grape harvest in the Douro Valley is in full swing, temperatures are pleasant, and the golden light of the autumn afternoon over the river is one of the most beautiful travel images of southern Europe.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 14° (57°)9– (48–)17 (63) | 15° (59°)10– (50–)20 (68) | 17° (63°)11– (52–)23 (73) | 18° (64°)13– (55–)26 (79) | 21° (70°)15– (59–)30 (86) | 23° (73°)17– (63–)31 (88) | 24° (75°)19– (66–)34 (93) | 25° (77°)20– (68–)33 (91) | 24° (75°)18– (64–)32 (90) | 22° (72°)16– (61–)27 (81) | 17° (63°)12– (54–)22 (72) | 15° (59°)11– (52–)19 (66) |
Ø night, range from coldest to warmest nightØ nightrange | 7° (45°)1– (34–)13 (55) | 8° (46°)1– (34–)12 (54) | 9° (48°)2– (36–)14 (57) | 11° (52°)4– (39–)15 (59) | 13° (55°)8– (46–)17 (63) | 15° (59°)10– (50–)19 (66) | 16° (61°)11– (52–)20 (68) | 16° (61°)11– (52–)20 (68) | 15° (59°)10– (50–)19 (66) | 14° (57°)8– (46–)18 (64) | 10° (50°)3– (37–)15 (59) | 8° (46°)2– (36–)14 (57) |
☀️Sunshine | 5h | 6h | 7h | 8h | 9h | 10h | 11h | 10h | 8h | 6h | 5h | 5h |
🌊Water Temp | 14° (57°) | 14° (57°) | 14° (57°) | 15° (59°) | 16° (61°) | 17° (63°) | 17° (63°) | 17° (63°) | 17° (63°) | 17° (63°) | 15° (59°) | 14° (57°) |
🌧Rain Days | 7d99mm (3.9") | 7d82mm (3.2") | 8d90mm (3.5") | 8d82mm (3.2") | 5d56mm (2.2") | 3d29mm (1.1") | 1d9mm (0.3") | 1d16mm (0.6") | 4d49mm (1.9") | 8d113mm (4.4") | 9d119mm (4.7") | 8d103mm (4.1") |
June offers great weather in Porto with fewer tourists and lower prices — ideal for those who want to avoid the peak season crowds.
Porto in winter is for writers and photographers. The Douro runs high, the azulejo-clad façades gleam after the rain, and the Livraria Lello bookshop finally has no queue. A glass of port on the quayside is hard to beat.
Spring: the azaleas in the Jardim do Palácio de Cristal bloom purple-pink, the terraces on the Cais da Ribeira reopen and Douro river cruises start their season. The weather is changeable — but the city is worth every rainy day.
In June Porto lets loose: the Festa de São João turns the city into one collective open-air party with plastic hammers, grilled sardines on every square and fireworks over the Douro. In summer Porto is Portugal's most popular destination.
Autumn is the winemakers' season: grapes are harvested in the Douro Valley and the quinta estates open for tastings. Porto itself now has its best light — soft afternoon gold on the granite of the old town.
Porto's summer festival: people playfully bop each other on the head with plastic hammers (martelos), with music everywhere and fireworks over the Douro.
City Trip
Pleasantly mild, not too hot