Weather in Portugal for May 2025
In general, the average temperature in Portugal at the beginning of May is 21.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.9 °C by the end of May.
With an average of 5 rainy days, Portugal experiences minimal rainfall in May.
Is May a good time to visit Portugal? check out the best time to travel to Portugal page.
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Portugal in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  20° | 2  20° | 3 21° | 4  22° | |||
| 5 22° | 6 22° | 7 24° | 8 26° | 9  24° | 10 23° | 11  23° |
| 12 23° | 13 24° | 14 22° | 15 21° | 16 22° | 17 24° | 18 23° |
| 19 24° | 20 25° | 21 23° | 22 20° | 23 22° | 24 22° | 25 24° |
| 26 25° | 27 25° | 28 25° | 29  24° | 30 25° | 31 26° |
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Temperatures trend during May in Portugal
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Partly cloudy | 20° /11° | 0.3 mm | 6 | |
| 2 May | Sunny | 20° /12° | 1 mm | 5 | |
| 3 May | Sunny | 21° /12° | 0.3 mm | 5 | |
| 4 May | Patchy rain possible | 22° /13° | 0.1 mm | 5 | |
| 5 May | Partly cloudy | 22° /13° | 0.5 mm | 6 | |
| 6 May | Partly cloudy | 22° /13° | 0.1 mm | 6 | |
| 7 May | Partly cloudy | 24° /13° | 0 mm | 6 | |
| 8 May | Sunny | 26° /15° | 0 mm | 7 | |
| 9 May | Moderate or heavy rain shower | 24° /15° | 3.8 mm | 6 | |
| 10 May | Moderate or heavy rain shower | 23° /14° | 2.9 mm | 6 | |
| 11 May | Overcast | 23° /13° | 0 mm | 5 | |
| 12 May | Overcast | 23° /14° | 0 mm | 5 | |
| 13 May | Patchy rain possible | 24° /13° | 0.2 mm | 6 | |
| 14 May | Partly cloudy | 22° /14° | 0.1 mm | 6 | |
| 15 May | Patchy rain possible | 21° /14° | 0.4 mm | 5 | |
| 16 May | Patchy rain possible | 22° /13° | 0.5 mm | 5 | |
| 17 May | Partly cloudy | 24° /14° | 0.1 mm | 6 | |
| 18 May | Sunny | 23° /13° | 0.1 mm | 6 | |
| 19 May | Sunny | 24° /13° | 0.1 mm | 6 | |
| 20 May | Sunny | 25° /14° | 0 mm | 6 | |
| 21 May | Partly cloudy | 23° /14° | 0.3 mm | 6 | |
| 22 May | Patchy rain possible | 20° /14° | 1.2 mm | 5 | |
| 23 May | Partly cloudy | 22° /13° | 0.3 mm | 6 | |
| 24 May | Sunny | 22° /13° | 0.9 mm | 6 | |
| 25 May | Overcast | 24° /13° | 0 mm | 6 | |
| 26 May | Sunny | 25° /14° | 0 mm | 7 | |
| 27 May | Sunny | 25° /14° | 0.1 mm | 6 | |
| 28 May | Sunny | 25° /14° | 0 mm | 7 | |
| 29 May | Cloudy | 24° /14° | 0.1 mm | 6 | |
| 30 May | Overcast | 25° /15° | 1 mm | 6 | |
| 31 May | Overcast | 26° /15° | 0.2 mm | 6 | |
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Guide for Portugal in May
In May, Portugal experiences a transition from spring to early summer, resulting in pleasant weather throughout the month.
At the beginning of May, the southern region, including popular destinations like the Algarve, typically enjoys warm and sunny days with temperatures averaging around 20° during the day and 12° at night.
The central and northern regions, such as Lisbon and Porto, also experience mild and comfortable weather, with temperatures ranging from 18° during the day to 10° at night.
By the end of May, Portugal sees a gradual increase in temperatures, especially in the southern coastal areas where daytime temperatures can reach 25° or higher. Inland regions may experience slightly warmer weather, with temperatures climbing to around 28° during the day.
The central and northern regions also witness a noticeable rise in temperatures, with daytime averages reaching 22° and nighttime temperatures hovering around 14°.
Overall, May in Portugal offers ideal weather conditions for outdoor activities, sightseeing, and beach outings, making it a popular time for tourists to visit the country.
The pleasant climate, combined with blooming flora and clear skies, creates a delightful atmosphere for travelers to explore Portugal's diverse landscapes and cultural attractions.
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Portugal in May - FAQ
What to pack to Portugal in May?
As you prepare for your trip to Portugal 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 Portugal, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
May rainfall patterns in Portugal
UV exposure in Portugal during May
Quick links
Where is Portugal?Get accurate weather forecasts for Portugal, located at latitude 38.717 and longitude -9.133. Stay updated with localized weather information tailored for Portugal.