Weather in Porto for May 2025
In general, the average temperature in Porto at the beginning of May is 19.3 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 21.7 °C by the end of May.
Porto experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 75.5 mm.
Is May a good time to visit Porto? check out the best time to travel to Porto page.
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Porto in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2 19° | 3  19° | 4 19° | |||
| 5  19° | 6 20° | 7 22° | 8 23° | 9 21° | 10  20° | 11 20° |
| 12  19° | 13 19° | 14 20° | 15 19° | 16 19° | 17 20° | 18  19° |
| 19 20° | 20 22° | 21 21° | 22  19° | 23 20° | 24 20° | 25 21° |
| 26 21° | 27 23° | 28 22° | 29 21° | 30 22° | 31 22° |
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Temperatures trend during May in Porto
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Sunny | 17° /11° | 2.9 mm | 4 | |
| 2 May | Sunny | 19° /10° | 1.7 mm | 5 | |
| 3 May | Overcast | 19° /11° | 1.9 mm | 5 | |
| 4 May | Sunny | 19° /12° | 5.1 mm | 5 | |
| 5 May | Partly cloudy | 19° /12° | 6.5 mm | 5 | |
| 6 May | Sunny | 20° /12° | 1 mm | 5 | |
| 7 May | Sunny | 22° /12° | 0 mm | 6 | |
| 8 May | Sunny | 23° /13° | 0 mm | 6 | |
| 9 May | Partly cloudy | 21° /14° | 11 mm | 5 | |
| 10 May | Moderate or heavy rain shower | 20° /13° | 7 mm | 5 | |
| 11 May | Sunny | 20° /11° | 0.9 mm | 6 | |
| 12 May | Cloudy | 19° /12° | 1.1 mm | 5 | |
| 13 May | Sunny | 19° /12° | 3.4 mm | 5 | |
| 14 May | Sunny | 20° /12° | 2 mm | 5 | |
| 15 May | Moderate rain at times | 19° /13° | 3.8 mm | 5 | |
| 16 May | Moderate rain at times | 19° /13° | 3.1 mm | 5 | |
| 17 May | Overcast | 20° /13° | 0.8 mm | 5 | |
| 18 May | Heavy rain at times | 19° /12° | 2.2 mm | 5 | |
| 19 May | Sunny | 20° /12° | 0.2 mm | 5 | |
| 20 May | Partly cloudy | 22° /13° | 0.3 mm | 6 | |
| 21 May | Cloudy | 21° /14° | 1.5 mm | 5 | |
| 22 May | Patchy rain possible | 19° /13° | 1.1 mm | 5 | |
| 23 May | Partly cloudy | 20° /12° | 0.2 mm | 5 | |
| 24 May | Patchy rain possible | 20° /13° | 1.2 mm | 5 | |
| 25 May | Sunny | 21° /12° | 0.1 mm | 6 | |
| 26 May | Sunny | 21° /13° | 1.7 mm | 6 | |
| 27 May | Partly cloudy | 23° /14° | 3.3 mm | 6 | |
| 28 May | Sunny | 22° /14° | 6.4 mm | 5 | |
| 29 May | Sunny | 21° /14° | 1.7 mm | 6 | |
| 30 May | Sunny | 22° /15° | 1.3 mm | 5 | |
| 31 May | Cloudy | 22° /15° | 2.2 mm | 5 | |
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Guide for Porto in May
In May, Porto, Portugal experiences a transition from spring to early summer, bringing about pleasant weather conditions. At the beginning of the month, Porto typically enjoys mild temperatures with an average high of 19° and a low of 12°.
The city experiences around 8 hours of sunshine per day, making it an ideal time to explore the charming streets and picturesque waterfront. Additionally, May sees relatively low precipitation, with occasional light showers.
As the month progresses, Porto begins to witness a gradual increase in temperatures. By the end of May, the average high temperature rises to around 22°, while the low hovers around 14°. The number of sunny hours also increases, providing ample opportunities for outdoor activities and sightseeing.
The sea temperature becomes more inviting for beachgoers, making it a great time to visit the nearby coastline.
Overall, May offers a delightful climate in Porto, making it an excellent time to visit and experience the city's rich culture, historic landmarks, and delectable cuisine.
Have you visited Porto in May? Share your experience by writing a review.
Porto in May - FAQ
What to pack to Porto in May?
As you prepare for your trip to Porto in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Porto, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
May rainfall patterns in Porto
UV exposure in Porto during May
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Where is Porto?Get accurate weather forecasts for Porto, located at latitude 41.15 and longitude -8.611. Stay updated with localized weather information tailored for Porto.