Ibera National Park - The restored wetlands of Argentina
Iberá National Park is Argentina's biggest wetland, created in 2018 and destined to rank among Argentina's top tourist destinations.
Mercedes Weather in March
Mercedes in March sees high daytime temperatures of 29°C (84°F) and nighttime lows of 18°C (64°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.
Rainfall in Mercedes in March
The heaviest rainfall of the year happens this month, with frequent showers. A poncho is your best bet to stay dry. Expect around of rain based on historical data, with 168 mm (6.6 in) average.
Temperature in Mercedes in March
Expect highs of 29°C (84°F) in Mercedes in March, with nights dropping to around 18°C (64°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With lows of 18°C (64°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 Mercedes in March
Enjoy a sunny month with about 229 hours of sunshine, the clear skies make Mercedes even more beautiful.For Mercedes itself, May, June, July, August and September generally stand out with 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.
Mercedes Temperature in March
Min Temperature
18°C (64°F)
Max Temperature
29°C (84°F)
Precipitation
168 mm (6.6 in)
Humidity
72%
Sunshine
229 hours
Percentage Sunshine
Mercedes Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mercedes - and find the best time to visit.
Historical weather records for Mercedes in March
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 March
Based on 20 years of weather observations (2006-2026), these are the most extreme conditions recorded in Mercedes.
- On March 3, 2025, temperatures climbed to 39°C (102°F), marking the warmest March day on record.
- The lowest daytime temperature in March was 19°C (66°F), recorded on March 31, 2022.
- Nighttime temperatures dropped to 6°C (43°F) on March 31, 2022, marking the coldest March night on record.
- The wettest March day on record brought 99 mm (3.9 in) of precipitation to Mercedes (March 2, 2007).
Best Places in Argentina in March
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in March →
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 Mercedes in March
Warm but pleasant conditions in Mercedes in March. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Mercedes in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming8/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Mercedes 3-Day Forecast
More climate data for Mercedes
Temperature Rainfall Sunshine Humidity
See the full Mercedes climate overview or explore weather in Argentina.
Popular in March
Where to go in March - average daytime high across popular destinations.
Córdoba
27°C (81°F) Buenos Aires
27°C (81°F) Mendoza26°C (79°F) Mar del Plata24°C (75°F) Salta
23°C (73°F) San Martín de los Andes
18°C (64°F) San Carlos de Bariloche18°C (64°F) Bucket list
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Ibera National Park - The restored wetlands of Argentina
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