Colonia Rosario Weather in May
May in Colonia Rosario typically sees daytime highs of 19°C (66°F) and nighttime lows of 11°C (52°F). With the least rainfall of the year, it's a reliably dry month.
Rainfall in Colonia Rosario in May
Known for its least rainfall, this month is the best of the year for people who like to spend time outdoors. Typically around 8 days of rainfall are expected, averaging 77 mm (3 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 Colonia Rosario in May
In May, Colonia Rosario sees pleasant temperatures, with highs of 19°C (66°F). Nights drop to around 11°C (52°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 11°C (52°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.Should you favor a climate that's both dry and comfortably warm, December typically offers the most agreeable 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 Colonia Rosario's climate page.
Colonia Rosario Temperature in May
Min Temperature
11°C (52°F)
Max Temperature
19°C (66°F)
Chance of Rain
25%
Precipitation
77 mm (3 in)
Rainy days
8 days
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Colonia Rosario typically drop from around 20°C (68°F) at the start of May to approximately 16°C (61°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 13°C (55°F).
Average temperatures in May
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Colonia Rosario in May
Browse day-by-day weather records for Colonia Rosario spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Colonia Rosario historical weather extremes in May
Our historical data for Colonia Rosario spans 1981 to 2026, revealing these weather extremes.
- The warmest day in May was on May 19, 2008, with a maximum of 30°C (86°F).
- The coldest May day was on May 28, 2007, with a maximum of 8°C (46°F).
- Nighttime temperatures dropped to 2°C (36°F) on May 31, 2022, marking the coldest May night on record.
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 Colonia Rosario 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. Wet weather is likely, so pack waterproof gear for multiple rainy days.What To Do in Colonia Rosario 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 Colonia Rosario's climate page.
See the full Colonia Rosario climate overview or explore weather in Uruguay.
