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Arcos Weather in May

May in Arcos brings pleasant temperatures, with daytime highs of 21°C (70°F) and nights around 13°C (55°F). Quite a bit of rainfall is expected, around 110 mm (4.3 in), so pack an umbrella.

Rainfall in Arcos in May

Historically, May sees about 13 days of rain, with a monthly average of 110 mm (4.3 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Arcos in May

In May, expect pleasant temperatures in Arcos, with highs of 21°C (70°F) and lows of 13°C (55°F) at night. Conditions are often most pleasant around the middle of the day. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Arcos in May

With approximately 255 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Arcos in May

Average wind conditions reach 5 m/s (10 knots) in May. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

Average water temperature in May

At 15°C (59°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Arcos.

Arcos Temperature in May

Min Temperature
13°C (55°F)
Max Temperature
21°C (70°F)
Water Temperature
15°C (59°F) *
Chance of Rain
44%
Precipitation
110 mm (4.3 in)
Rainy days
13 days
Humidity
74% *
Windspeed
5 m/s (10 knots) *
Sunshine
255 hours *
Percentage Sunshine
61% *
* Data from: Porto, Portugal (18 KM, 11 Miles).

Arcos Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Arcos - and find the best time to visit.

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 Arcos 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. Expect water temperatures of around 15°C (59°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Arcos in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    9/10
  • Walking
    9/10
  • Camping
    6/10
  • Outdoor sports
    9/10

Arcos 3-Day Forecast

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

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