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Cabo Polonio Weather in August
Cabo Polonio in August sees moderate temperatures, with highs around 16°C (61°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 110 mm (4.3 in) on average, so pack waterproofs just in case.
Rainfall in Cabo Polonio in August
Rain is expected on roughly 11 days, totalling around 110 mm (4.3 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Cabo Polonio in August
Temperatures in Cabo Polonio in August top out at 16°C (61°F) and drop to 10°C (50°F) overnight. During August, the winter season is in full swing. Conditions are often most pleasant around the middle 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 Cabo Polonio in August
The area experiences a moderate amount of sunshine, with approximately 169 hours of sunlight expected. This means a decent mix of sun and overcast.If you prefer dry days with pleasant temperatures, August may not be the ideal month to visit Cabo Polonio. Our weather planner can help you explore destinations with more pleasant weather conditions.
Cabo Polonio Temperature in August
Min Temperature
10°C (50°F)
Max Temperature
16°C (61°F)
Chance of Rain
35%
Precipitation
110 mm (4.3 in)
Rainy days
11 days
Humidity
79% *
Sunshine
169 hours *
Percentage Sunshine
*
* Data from: Rocha, Uruguay (51 KM, 31 Miles).
Cabo Polonio Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cabo Polonio - and find the best time to visit.
Daily Historical Temperatures
46-year average (1980-2025)
Based on our historical records, temperatures in Cabo Polonio typically stay consistent throughout August, with daily highs averaging around 16°C (61°F). Nights are cold, with lows typically ranging from 7°C (45°F) to 9°C (48°F).
Average temperatures in August
Daily Historical Precipitation
46-year average (1980-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather records for Cabo Polonio in August
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 August
Our historical data for Cabo Polonio spans 1981 to 2026, revealing these weather extremes.
- The hottest August day on record in Cabo Polonio reached 31°C (88°F) (August 30, 2009).
- The coldest August day was on August 1, 1991, with a maximum of 6°C (43°F).
- The coldest night in August in Cabo Polonio was on August 11, 2010, with a minimum of -2°C (28°F).
Best Places in Uruguay in August
Find out more about the weather in Uruguay and which places have the best travel conditions in this month. See all of Uruguay in August →
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 Cabo Polonio in August
The weather can swing between comfortable and chilly in August, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Cabo Polonio in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling5/10 -
Walking5/10 -
Camping6/10 -
Outdoor sports9/10
Cabo Polonio 3-Day Forecast
More climate data for Cabo Polonio
Temperature Rainfall Sunshine Humidity
See the full Cabo Polonio climate overview or explore weather in Uruguay.
Popular in August
Where to go in August - average daytime high across popular destinations.
La Pedrera
16°C (61°F) Piriápolis16°C (61°F) Montevideo17°C (63°F) Colonia del Sacramento
16°C (61°F) José Ignacio16°C (61°F) La Paloma16°C (61°F) Punta Del Diablo16°C (61°F) Punta del Este15°C (59°F) Bucket list
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