Porto Climate: Sunshine Hours, Temperature & Best Time to Visit

Porto climate month by month: sunshine hours, temperature, rain and day length from weather station data 1991–2020. Best time to visit: June, July, August. Sunniest month: July.

  • 2,691 hours of sunshine a year – 1.6 times as much as London. Warmest is August at 26 °C by day.
  • Best time to visit: June, July, August

Sunshine and temperature in Porto month by month

  • January: 3.8 h Sun/day (117 h), Daytime high 15 °C, Night 6 °C, Rain 138 mm, Holiday score 17
  • February: 5.6 h Sun/day (157 h), Daytime high 15 °C, Night 6 °C, Rain 96 mm, Holiday score 29
  • March: 6.3 h Sun/day (196 h), Daytime high 19 °C, Night 6 °C, Rain 112 mm, Holiday score 44
  • April: 7.9 h Sun/day (236 h), Daytime high 19 °C, Night 8 °C, Rain 91 mm, Holiday score 55
  • May: 9.5 h Sun/day (293 h), Daytime high 22 °C, Night 10 °C, Rain 60 mm, Holiday score 75
  • June: 10.4 h Sun/day (313 h), Daytime high 24 °C, Night 13 °C, Rain 32 mm, Holiday score 92
  • July: 11.4 h Sun/day (354 h), Daytime high 26 °C, Night 14 °C, Rain 13 mm, Holiday score 99
  • August: 10.6 h Sun/day (329 h), Daytime high 26 °C, Night 15 °C, Rain 22 mm, Holiday score 96
  • September: 8.8 h Sun/day (264 h), Daytime high 25 °C, Night 14 °C, Rain 49 mm, Holiday score 86
  • October: 5.8 h Sun/day (181 h), Daytime high 23 °C, Night 11 °C, Rain 137 mm, Holiday score 56
  • November: 4.4 h Sun/day (133 h), Daytime high 18 °C, Night 8 °C, Rain 137 mm, Holiday score 31
  • December: 3.8 h Sun/day (118 h), Daytime high 15 °C, Night 7 °C, Rain 122 mm, Holiday score 20
  • Temperature: NASA POWER model value (grid, ±2–3 °C) · Sunshine: estimated from NASA satellite data (±15 %) · Rain: NASA POWER model value (grid, ±2–3 °C). Averages 1991–2020, source: Deutscher Wetterdienst (CLIMAT station data, CC BY 4.0) and NASA POWER; single years differ.

Questions

  • When is the best time to visit Porto? By sunshine, warmth and rain the best months are June, July, August. Sunniest is July with 354 hours of sunshine, warmest August at 26 °C.
  • How many hours of sunshine does Porto get a year? About 2,691 hours – 1.6 times as many as London (1,675 hours).
  • When does it rain most in Porto? In January, with 138 mm on average. The driest month is July.
  • How warm is Porto in January and July? In January the average daytime high is 15 °C, in July 26 °C.