Weather in Portugal for May 2027
In general, the average temperature in Portugal at the beginning of May is 20.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 26 °C by the end of May.
Portugal experiences moderate rainfall in May, with an average of 6 rainy days and a total precipitation of 20.5 mm.
Is May a good time to visit Portugal? check out the best time to travel to Portugal page.
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Portugal Weather May
What’s the Weather Like in Portugal This May?
Temperatures trend during May in Portugal
May weather in Portugal day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Partly cloudy | 20° /11° | 0.4 mm | 6 | |
| 2 May |  Heavy rain at times | 20° /12° | 2.5 mm | 5 | |
| 3 May |  Patchy rain possible | 20° /12° | 1.5 mm | 6 | |
| 4 May | Patchy rain possible | 21° /12° | 0.9 mm | 6 | |
| 5 May | Partly cloudy | 21° /13° | 0.4 mm | 6 | |
| 6 May | Patchy rain possible | 21° /13° | 0.1 mm | 6 | |
| 7 May | Partly cloudy | 22° /12° | 0 mm | 6 | |
| 8 May |  Sunny | 24° /14° | 1.4 mm | 6 | |
| 9 May | Partly cloudy | 22° /14° | 4.4 mm | 5 | |
| 10 May |  Moderate or heavy rain shower | 21° /13° | 2.8 mm | 5 | |
| 11 May |  Overcast | 22° /13° | 0.6 mm | 5 | |
| 12 May | Overcast | 21° /13° | 0.9 mm | 5 | |
| 13 May | Patchy rain possible | 22° /13° | 0.7 mm | 6 | |
| 14 May | Partly cloudy | 21° /13° | 0.1 mm | 6 | |
| 15 May | Patchy rain possible | 20° /13° | 0.2 mm | 6 | |
| 16 May | Patchy rain possible | 22° /13° | 0.3 mm | 6 | |
| 17 May | Partly cloudy | 23° /14° | 0.1 mm | 7 | |
| 18 May | Sunny | 22° /13° | 0 mm | 6 | |
| 19 May | Patchy rain possible | 23° /13° | 0.1 mm | 6 | |
| 20 May | Sunny | 25° /14° | 0 mm | 7 | |
| 21 May | Partly cloudy | 24° /15° | 0.2 mm | 7 | |
| 22 May | Partly cloudy | 22° /15° | 0.8 mm | 6 | |
| 23 May | Partly cloudy | 24° /14° | 0.2 mm | 7 | |
| 24 May | Sunny | 23° /14° | 0.6 mm | 7 | |
| 25 May | Sunny | 25° /14° | 0 mm | 7 | |
| 26 May | Sunny | 26° /15° | 0 mm | 7 | |
| 27 May | Sunny | 26° /15° | 0.1 mm | 7 | |
| 28 May | Sunny | 26° /15° | 0 mm | 7 | |
| 29 May | Sunny | 26° /15° | 0.1 mm | 7 | |
| 30 May | Sunny | 26° /16° | 0.7 mm | 7 | |
| 31 May | Overcast | 27° /15° | 0.1 mm | 7 | |
| Next | |||||
Portugal weather in May vs April vs June
| April | May | June | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Sunny |
| Temperatures | 20°/12° | 22°/14° | 25°/16° |
| Rainfall | 48 mm | 20 mm | 13 mm |
| Wind | 21.2 km/h | 23.1 km/h | 24 km/h |
| Humidity | 68% | 64% | 66% |
| Rainy days | 20 days | 6 days | 8 days |
| Dry days | 10 days | 25 days | 22 days |
Planning a trip to Portugal? Discover the best time to visit
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.
Portugal in May - FAQ
Is May a good time to visit Portugal?
What are the expected maximum and minimum temperatures in Portugal during May?
How much rainfall should be expected in Portugal during May?
What are the typical wind conditions in Portugal during May?
Portugal water temperatures in May
The average water temperature of the Atlantic Ocean near Portugal in May is 15.2 °C. At the beginning of May temperatures are around 14.4 °C; by the end of the month they get warmer and reach 16.2 °C.
- What is the water temperature in Portugal in May?
- The average water temperature in Portugal in May is 15.2 °C.
- Can you swim in Portugal in May?
- Brisk: quick dips and active swimming are fine, but pack a 2–3 mm spring suit if you plan longer sessions or early-morning outings.
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 trousers
- Rain Gear: Lightweight, waterproof clothing
- 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
- Umbrellas/Raincoats: For rainy days
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.