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Foz do Iguaçu Weather in January
January in Foz do Iguaçu typically sees daytime highs of 33°C (91°F) and nighttime lows of 22°C (72°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Foz do Iguaçu in January
Historically, approximately 10 days this month are expected to have rain, averaging 166 mm (6.5 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Foz do Iguaçu in January
January in Foz do Iguaçu sees highs of 33°C (91°F) and lows of 22°C (72°F) overnight. Mornings and evenings are often more comfortable than the peak afternoon hours. With lows of 22°C (72°F), the nights are warm and generally comfortable. Expect some days to be hotter than these averages. Stay cool by wearing light clothing and drinking plenty of water throughout the day.
Sunshine in Foz do Iguaçu in January
Expect a lot of sunshine this month, with about 230 hours of sun. These sunny conditions add to the overall experience.If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Foz do Iguaçu. Our weather planner can help you explore destinations with more pleasant weather conditions.
Foz do Iguaçu Temperature in January
Min Temperature
22°C (72°F)
Max Temperature
33°C (91°F)
Chance of Rain
33%
Precipitation
166 mm (6.5 in)
Rainy days
10 days
Humidity
77%
Sunshine
230 hours
Percentage Sunshine
Foz do Iguaçu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Foz do Iguaçu - and find the best time to visit.
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Foz do Iguaçu typically stay consistent throughout January, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather records for Foz do Iguaçu in January
Browse day-by-day weather records for Foz do Iguaçu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Foz do Iguaçu historical weather extremes in January
Based on 49 years of weather observations in Foz do Iguaçu between 1976 and 2025, these are the recorded extremes.
- The warmest day in January was on January 23, 2022, with a maximum of 40°C (104°F).
- The lowest daytime temperature in January was 21°C (70°F), recorded on January 21, 1989.
- The lowest overnight temperature recorded in January was 11°C (52°F) (January 1, 1980).
Best Places in Brazil in January
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in January →
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 Foz do Iguaçu in January
Warm weather calls for comfortable, breathable clothing in January. 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Foz do Iguaçu in January
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
Foz do Iguaçu 3-Day Forecast
More climate data for Foz do Iguaçu
Temperature Rainfall Sunshine Humidity
See the full Foz do Iguaçu climate overview or explore weather in Brazil.
Popular in January
Where to go in January - average daytime high across popular destinations.
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