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Treinta y Tres Weather in May
With daytime temperatures of 20°C (68°F) and nighttime lows of 10°C (50°F), May in Treinta y Tres brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 110 mm (4.3 in) falls on average.
Rainfall in Treinta y Tres in May
Based on our climate data of the past 30 years, about 9 days of rain are anticipated, with 110 mm (4.3 in) on average. 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 Treinta y Tres in May
May in Treinta y Tres brings typical temperatures with highs around 20°C (68°F) and lows of 10°C (50°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 10°C (50°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Treinta y Tres in May
The month brings about 172 hours of sunlight, offering a comfortable mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. March and November typically offer the best weather for Treinta y Tres.
Treinta y Tres Temperature in May
Min Temperature
10°C (50°F)
Max Temperature
20°C (68°F)
Chance of Rain
29%
Precipitation
110 mm (4.3 in)
Rainy days
9 days
Humidity
80%
Sunshine
172 hours
Percentage Sunshine
Treinta y Tres Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Treinta y Tres - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Treinta y Tres typically drop from around 21°C (70°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 11°C (52°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 records for Treinta y Tres in May
Browse day-by-day weather records for Treinta y Tres spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Treinta y Tres historical weather extremes in May
According to our 45 years of weather records for Treinta y Tres, the following extremes were recorded between 1981 and 2026.
- Treinta y Tres recorded its highest May temperature of 31°C (88°F) on May 29, 1981.
- The coldest May day was on May 31, 1983, with a maximum of 9°C (48°F).
- Treinta y Tres registered its coldest May night on May 30, 2022, with temperatures dropping to -4°C (25°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 →
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 Treinta y Tres in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Treinta y Tres in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Treinta y Tres 3-Day Forecast
More climate data for Treinta y Tres
Temperature Rainfall Sunshine Humidity
See the full Treinta y Tres climate overview or explore weather in Uruguay.
Popular in May
Where to go in May - average daytime high across popular destinations.
Punta Del Diablo
19°C (66°F) La Pedrera19°C (66°F) José Ignacio19°C (66°F) Piriápolis19°C (66°F) La Paloma19°C (66°F) Montevideo19°C (66°F) Punta del Este18°C (64°F) Colonia del Sacramento
18°C (64°F) Bucket list
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