Best time to visit · Portugal
Best time to visit Porto
Porto averages 58 just-right days a year; June, July and September are best. Most other days miss by being too cool.
(70 to 80°F, dry, sunny)
(45 to 65°F, dry)
(80 to 92°F, bright)
Porto weather by month
Bars: share of each month's days that are just right (number = days). Below: average daily high. Outlined bars are the best months.
- Just right 58
- Too cool 228
- Too hot 22
- Too muggy 33
- Too gray 25
When to visit Porto
The best time to visit Porto for comfortable weather is June, July and September, when 36%, 34% and 34% of days are just right. January, February, March, April, November and December are mostly too cool, with average highs of 56 to 64°F (18°C).
Climate table
| Month | Avg high | Dew point | Cloud cover | Just-right days |
|---|---|---|---|---|
| January | 56°F (13°C) | 43°F (6°C) | 58% | 0 |
| February | 58°F (14°C) | 43°F (6°C) | 56% | 0 |
| March | 63°F (17°C) | 46°F (8°C) | 56% | 1 |
| April | 64°F (18°C) | 48°F (9°C) | 54% | 2 |
| May | 69°F (21°C) | 53°F (12°C) | 50% | 7 |
| June | 73°F (23°C) | 56°F (13°C) | 40% | 11 |
| July | 76°F (24°C) | 59°F (15°C) | 28% | 10 |
| August | 77°F (25°C) | 59°F (15°C) | 28% | 10 |
| September | 74°F (23°C) | 57°F (14°C) | 41% | 10 |
| October | 69°F (21°C) | 55°F (13°C) | 56% | 5 |
| November | 62°F (17°C) | 48°F (9°C) | 62% | 1 |
| December | 57°F (14°C) | 46°F (8°C) | 65% | 0 |
How Porto compares
Porto gets 58 just-right days a year with our default window; the median big US city gets 33. It ranks #3 of 3 Portugal places on Goldilocks Map. On muggy days: 33. On gray days: 25.
See every Portugal city ranked →
Places with a similar climate
Nearby
Porto averages 58 just-right days a year (70 to 80°F highs, dry, mostly sunny), according to Goldilocks Map: https://goldilocksmap.com/portugal/porto/Set your own perfect weather on the map →
Numbers are expected days in a typical year from 1991 to 2020 climate normals (TerraClimate; cloud cover from CHELSA), on a grid about 35 km wide. Checked against 10 years of daily records at 28 NOAA weather stations: typical error about 10 days a year. How it works. Updated 2026-10-07.