Average highs in Porto run from 14 °C (56 °F) in January to 25 °C (76 °F) in August. By the numbers, the best months to go are July, August, September.
average high to low each dot ≈ 3 rainy days
Pick a month
Porto climate table
| Month | High | Low | Rainy days | Rain | Sea | Daylight |
|---|---|---|---|---|---|---|
| January | 14°C / 56°F | 7°C / 44°F | 10 | 161 mm | 15°C | 9 h 31 min |
| February | 15°C / 58°F | 8°C / 46°F | 9 | 120 mm | 14°C | 10 h 34 min |
| March | 16°C / 60°F | 8°C / 47°F | 11 | 146 mm | 14°C | 11 h 49 min |
| April | 18°C / 64°F | 10°C / 51°F | 10 | 135 mm | 15°C | 13 h 16 min |
| May | 20°C / 68°F | 13°C / 55°F | 8 | 85 mm | 15°C | 14 h 28 min |
| June | 22°C / 71°F | 15°C / 58°F | 6 | 50 mm | 17°C | 15 h 07 min |
| July | 24°C / 76°F | 16°C / 62°F | 2 | 13 mm | 16°C | 14 h 51 min |
| August | 25°C / 76°F | 16°C / 62°F | 2 | 14 mm | 15°C | 13 h 48 min |
| September | 24°C / 74°F | 16°C / 60°F | 5 | 68 mm | 16°C | 12 h 24 min |
| October | 21°C / 69°F | 14°C / 57°F | 12 | 183 mm | 19°C | 11 h 01 min |
| November | 17°C / 62°F | 11°C / 51°F | 12 | 167 mm | 17°C | 9 h 49 min |
| December | 15°C / 58°F | 9°C / 48°F | 13 | 182 mm | 15°C | 9 h 13 min |
Our rule: a month scores 2 points for comfortable average highs of 18–28 °C (1 point for 14–18 or 28–32 °C) and 2 points for 5 or fewer rainy days (1 point for 6–10). Average highs above 35 °C or below 8 °C make it a tough month whatever the rain. A rainy day here means 2 mm of rain or more. 4 points = great, 3 = good, 2 = mixed, 0–1 = tough.
Good to know
- Typical daily budget: €50–110 (budget) to €140–280 (mid-range) per person, excluding flights.
- Usually high season: June, July, August, September.
- Where to stay: Ribeira and Baixa for sights on foot; Cedofeita for cafés; Foz for the ocean.
Plan your Porto trip
- Romantic Weekend in Porto: 2-Day Plan for Couples (2026)
- How to Plan a Trip in 10 Minutes (2026 Step-by-Step)
- Best Time to Visit Portugal: Month-by-Month Guide 2026
Nearby cities
Lisbon weather · Madrid weather · Seville weather · Barcelona weather
FAQ
What is the best month to visit Porto?
By weather alone, July, August, September score best: comfortable temperatures and few rainy days. Peak season is usually June, July, August, September, when rooms cost more.
What is the warmest month in Porto?
August, with average highs of 25 °C (76 °F).
What is the rainiest month in Porto?
December, with about 13 rainy days.
Sources: climate averages from Open-Meteo historical weather (ERA5 reanalysis, 2015–2024); sea temperatures from the Open-Meteo marine API (2023–2024); public holidays from Nager.Date. Daylight is calculated for the 15th of the month. Averages are a guide, not a forecast. Costs are typical ranges per person per day, excluding flights.