Temperatures begin to moderate in many regions while still pleasant for travel; Mendoza hosts its harvest festivities and the wine regions are active. Shoulder-season crowds often make this an attractive time for city and wine-region visits.
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Average temperature across Argentina in March.
Salta, Jujuy, Quebrada de Humahuaca, Cafayate
March brings the transition toward the long dry season; daytime warmth lingers while storms become less frequent. Salta city retains its comfortable, sunlit mornings - ideal for wine tours in Cafayate - but nights start to cool noticeably as altitude asserts itself. If you’re crossing high passes toward Chile, check road reports: spring melt and residual showers can still create potholes or rockfall on Andean foothill roads.
Iguazú, Misiones, Corrientes, Entre Ríos
March ushers in marginally cooler nights but remains humid, with heavy showers still common across the region. The Paraná and Uruguay rivers are high and can overtop local banks after intense storms - Entre Ríos towns like Gualeguaychú keep a close eye on levels during this season. For travellers, the advantage is lush green forest, fewer crowds after Carnival, and excellent birdwatching as migratory species pass through.
Mendoza, San Juan, Uco Valley, Aconcagua approach
March delivers reliably warm days and noticeably cooler nights, a pleasant balance for exploring vineyards and the foothills of the Andes. The harvest typically concludes and cultural events around Mendoza attract visitors; this is an amiable month for both city strolls and higher-elevation excursions. Watch for the Zonda - a hot, dry foehn wind that can arrive in spring and suddenly raise temperatures while lowering humidity, making conditions dusty and uncomfortable.
Buenos Aires city, La Plata, Mar del Plata, Rosario, Tigre
March sees a welcome easing of humidity; daytime temperatures fall into the comfortable mid-20s°C while nights remain mild. The city’s tree-lined avenues are pleasant for walking and the coast is still warm enough for swimming at Mar del Plata before autumn closes the season. Shoulder-season fares make this a good time to explore Buenos Aires’ museums and parks without the peak-summer crush.
Bariloche, San Martín de los Andes, Neuquén, El Bolsón
March brings a crisp edge to the air and spectacular autumn colours around Bariloche and El Bolsón as lenga and coihue turn red and gold. Rain becomes more frequent toward late month, and higher trails close earlier as daylight shortens; it’s one of the most photogenic months for drives along Route 40. Take warm layers for morning boat trips and be prepared for cooler nights that require a thermal layer.
El Calafate, El Chaltén, Ushuaia, Puerto Madryn, Península Valdés
March cools noticeably and daylight shortens; El Chaltén’s popular trails are quieter and colours in the lenga forests deepen. Storms become more frequent and evenings get distinctly colder, so overnight trekking requires warmer sleeping gear. In Península Valdés, the marine wildlife season is in full swing and sea conditions can become choppier as autumnal swells increase.
Mendoza's grape harvest festival, featuring parades and wine events, usually held in early March.
See how March compares with the rest of the year, then read the full guide.