Mercedes Weather in August
During August, Mercedes experiences pleasant daytime temperatures of 19°C (66°F) and cooler nights around 8°C (46°F). As part of the winter season, expect quite a bit of rainfall. Around 91 mm (3.6 in) is typical.
Rainfall in Mercedes in August
Records from the past 30 years suggest around 8 days of rain, with 91 mm (3.6 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Mercedes in August
In August, expect pleasant temperatures in Mercedes, with highs of 19°C (66°F) and lows of 8°C (46°F) at night. The month of August belongs to the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 8°C (46°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Mercedes in August
The month brings about 167 hours of sunlight, offering a comfortable mix of sun and overcast.
Wind Speed in Mercedes in August
Average wind speeds reach 3 m/s (6 knots) in August, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.If you prefer enjoying temperate temperatures and rain-free days, May and September 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 Mercedes's climate page.
Mercedes Temperature in August
Min Temperature
8°C (46°F)
Max Temperature
19°C (66°F)
Chance of Rain
26%
Precipitation
91 mm (3.6 in)
Rainy days
8 days
Humidity
74%
Windspeed
3 m/s (6 knots)
Sunshine
167 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mercedes typically stay consistent throughout August, with daily highs averaging around 19°C (66°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 8°C (46°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Mercedes in August
Browse day-by-day weather records for Mercedes spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mercedes historical weather extremes in August
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Mercedes.
- Mercedes recorded its highest August temperature of 34°C (93°F) on August 30, 2009.
- The coldest August day was on August 3, 1982, with a maximum of 6°C (43°F).
- Mercedes registered its coldest August night on August 14, 2019, with temperatures dropping to -4°C (25°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 →
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tolerable
unpleasant
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What to Wear in Mercedes in August
Comfortable temperatures call for an easy wardrobe in August. 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Mercedes in August
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 Mercedes's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Mercedes climate overview or explore weather in Uruguay.
