During March, Puerto Iguazú experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 21°C (70°F). Expect quite a bit of rainfall. Around 153 mm (6 in) is typical.
Our weather planner can help you find worldwide destinations with pleasant weather during this period. August typically offers the best weather for Puerto Iguazú.
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Pick a month to see the average temperature, rainfall and sunshine in Puerto Iguazú - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Puerto Iguazú typically stay consistent throughout March, with daily highs averaging around 31°C (88°F). Nights are pleasant, with lows typically ranging from 19°C (66°F) to 21°C (70°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Puerto Iguazú spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on weather observations in Puerto Iguazú between 1976 and 2026, these are the recorded extremes during 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 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).
Warm weather calls for comfortable, breathable clothing in March. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Sunglasses could come in handy during the sunnier parts of your trip.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Puerto Iguazú climate overview or explore weather in Argentina.
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) Need travel inspiration? Check out our bucket list articles and be inspired.
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