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Guimarães Weather in May
May in Guimarães brings pleasant temperatures, with daytime highs of 22°C (72°F) and nights around 11°C (52°F). Quite a bit of rainfall is expected, around 125 mm (4.9 in), so pack an umbrella.
Rainfall in Guimarães in May
Typically, about 14 days will experience rainfall, with an average of 125 mm (4.9 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Guimarães in May
Temperatures in Guimarães in May top out at 22°C (72°F) and drop to 11°C (52°F) overnight. Conditions are often most pleasant around the middle of the day. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Guimarães in May
The city usually sees around 255 hours of sunlight, indicating many sunny days , a great month for sightseeing.For Guimarães itself, June, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Guimarães Temperature in May
Min Temperature
11°C (52°F)
Max Temperature
22°C (72°F)
Chance of Rain
45%
Precipitation
125 mm (4.9 in)
Rainy days
14 days
Humidity
74% *
Sunshine
255 hours *
Percentage Sunshine
61% *
* Data from: Porto, Portugal (39 KM, 24 Miles).
Guimarães Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Guimarães - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Guimarães typically stay consistent throughout May, with daily highs averaging around 22°C (72°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 13°C (55°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Guimarães in May
Browse day-by-day weather records for Guimarães spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guimarães historical weather extremes in May
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Guimarães.
- Guimarães recorded its highest May temperature of 32°C (90°F) on May 23, 2017.
- The lowest daytime temperature in May was 11°C (52°F), recorded on May 19, 1979.
- The coldest night in May in Guimarães was on May 5, 1982, with a minimum of 2°C (36°F).
- Peak precipitation in May occurred on May 1, 2015, when 38 mm (1.5 in) of precipitation was measured.
Best Places in Portugal in May
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Guimarães in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Guimarães in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Guimarães 3-Day Forecast
More climate data for Guimarães
Temperature Rainfall Sunshine Humidity
See the full Guimarães climate overview or explore weather in Portugal.
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Where to go in May - average daytime high across popular destinations.
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