Porto · SpringMonth summary
Porto weather in May
✅ Good
🌡️ Temperature min / max
13°C – 20°C
🌧 Rainy days
31% of days
☀️ Sunshine
13.0h per day on average
🌊 🌊 Season
Spring
⭐ ⭐ Weather score
7.6/10
📅 📅 Best month
August (8.9/10)
Quick decision
Should you visit Porto in May?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: Favourable conditions in May (7.6/10). August scores higher but the gap is small.
By trip type
Porto in May by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in May
🎯 Peak season — book ahead for best rates. Accommodation prices at their highest Spring marks the start of the good season in Porto. Temperatures rise (20°C) and tourists have not yet arrived en masse. Expect rain on 31% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if August (8.9/10) remains theoretically better.
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All months for Porto
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 7°C | 14°C | 40% | 5.9 | 8.1h | 5.0/10 |
| ⛅ February | 8°C | 15°C | 37% | 4.4 | 9.0h | 6.1/10 |
| 🌦️ March | 9°C | 15°C | 46% | 5.2 | 10.1h | 5.7/10 |
| 🌦️ April | 11°C | 17°C | 42% | 4.9 | 11.6h | 7.0/10 |
| 🌤️ May | 13°C | 20°C | 31% | 2.6 | 13.0h | 7.6/10 |
| 🌤️ June | 15°C | 21°C | 26% | 1.6 | 13.2h | 8.0/10 |
| 🌤️ July | 16°C | 23°C | 10% | 0.4 | 13.4h | 8.8/10 |
| 🌤️ August | 16°C | 24°C | 8% | 0.4 | 12.5h | 8.9/10 |
| 🌤️ September | 16°C | 22°C | 19% | 2.2 | 11.0h | 8.0/10 |
| 🌤️ October | 14°C | 20°C | 40% | 5.8 | 9.5h | 7.1/10 |
| 🌦️ November | 10°C | 16°C | 50% | 6.5 | 7.9h | 5.2/10 |
| 🌦️ December | 9°C | 14°C | 47% | 6.3 | 7.3h | 4.4/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In May, Porto averages 20°C, 31% rainy days and 13.0h of sunshine per day. Overall weather score: 7.6/10.
See methodology →
Comparison
May vs August (best month)
The best month is August (score 8.9/10). Difference:
- 🌡️ Max temperature : +4°C
- 🌧 Rainy days : -23%
- ☀️ Sunshine : -0.5h/day
FAQ
FAQ — Porto in May
Is May a good time to visit Porto?
May is an excellent time to visit Porto (score 7.6/10). With 20°C, 13.0h of sunshine and 31% rain, conditions are very favourable.
What to do in Porto in May?
With 20°C max and 13.0h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Porto
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