Cabo Polonio Weather in May
Thinking of visiting Cabo Polonio in May? Expect pleasant temperatures reaching 19°C (66°F) during the day, dropping to 14°C (57°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Cabo Polonio in May
The climate data from previous years indicates about 9 days of rain, averaging 96 mm (3.8 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Cabo Polonio in May
May in Cabo Polonio brings pleasant temperatures, with highs of 19°C (66°F) and nights around 14°C (57°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Cabo Polonio in May
The area enjoys a balanced 169 hours of sunlight, ensuring it's neither too overcast nor too sunny.If you prefer dry days with pleasant temperatures, January, November and December typically offer 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our Cabo Polonio's climate page.
Cabo Polonio Temperature in May
Min Temperature
14°C (57°F)
Max Temperature
19°C (66°F)
Chance of Rain
30%
Precipitation
96 mm (3.8 in)
Rainy days
9 days
Humidity
82% *
Sunshine
169 hours *
Percentage Sunshine
*
Daily Historical Temperatures
46-year average (1979-2025)
Based on our historical records, temperatures in Cabo Polonio typically drop from around 20°C (68°F) at the start of May to approximately 17°C (63°F) by the end. Nights are cool, with lows typically ranging from 8°C (46°F) to 12°C (54°F).
Average temperatures in May
Daily Historical Precipitation
46-year average (1979-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Cabo Polonio in May
Browse day-by-day weather records for Cabo Polonio spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cabo Polonio historical weather extremes in May
Our historical data for Cabo Polonio spans 1981 to 2026, revealing these weather extremes.
- On May 25, 2023, temperatures climbed to 33°C (91°F), marking the warmest May day on record.
- The coldest May day was on May 25, 1996, with a maximum of 5°C (41°F).
- The coldest night in May in Cabo Polonio was on May 27, 1987, with a minimum of 0°C (32°F).
Best Places in Uruguay in May
Find out more about the weather in Uruguay and which places have the best travel conditions in this month. See all of Uruguay in May →
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What to Wear in Cabo Polonio 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. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Cabo Polonio in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our Cabo Polonio's climate page.
Temperature Rainfall Sunshine Humidity
See the full Cabo Polonio climate overview or explore weather in Uruguay.
