Weather in Фос-ду-Игуасу by month: what to expect

Фос-ду-Игуасу enjoys a subtropical climate with distinct wet and dry periods. The warmest months stretch from November to March, when temperatures often climb above +30 °C, while the cooler season arrives in June and July, bringing milder days around +17...+24 °C.

Rainfall in Фос-ду-Игуасу varies significantly throughout the year. The wettest months are January and October, with frequent downpours, while July and August offer the driest conditions, making them ideal for outdoor activities without heavy rain interruptions.

In Фос-ду-Игуасу, January and February are the hottest months, with daytime highs reaching +32 °C and nights rarely dropping below +21 °C. By April, temperatures begin to ease, settling into a comfortable +22...+28 °C range that lasts until May.

The coolest period in Фос-ду-Игуасу spans June and July, when average highs hover around +23...+24 °C and nights can dip to +12...+14 °C. From September, the heat gradually returns, with December marking the start of another warm cycle at +25...+32 °C.

Фос-ду-Игуасу experiences its heaviest rainfall in January, with over 230 mm of precipitation, often in short but intense bursts. By May, rain becomes less frequent, though still present, before tapering off in July to just 55 mm—the driest month of the year.

After a relatively dry August, rain returns in October, matching January’s levels with another 230 mm. The transition months of April and November offer moderate rainfall, making them a balanced choice for travelers who prefer avoiding extremes.

For a trip to Фос-ду-Игуасу in January or February, pack lightweight, breathable clothing to handle the +30 °C+ heat, along with a compact rain jacket for sudden downpours. Comfortable sandals and sun protection are essential for exploring the waterfalls and parks.

Visiting Фос-ду-Игуасу in June or July calls for layers—light sweaters for cooler evenings around +12 °C and light trousers for daytime temperatures near +24 °C. A light raincoat is still useful, though rain is less likely during these months.

If traveling in October or November, prepare for a mix of warmth and rain. Quick-dry fabrics, a foldable umbrella, and sturdy walking shoes will help you stay comfortable whether you’re hiking near the falls or strolling through the city.