Foz do Iguaçu weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Fair
Best time to visit: April – September
What is the weather like in Foz do Iguaçu in December?
In December, Foz do Iguaçu is hot: daytime highs average 31 °C, and even at night it stays warm at around 22 °C. Expect around 6 hours of sunshine a day. It rains often – on about 15 days, adding up to 180 mm. On about 19 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is a so-so month for a holiday in Foz do Iguaçu.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 58 | 42 | 39 |
| Day | 29° | 31° | 31° |
| Night | 20° | 22° | 23° |
| Sun | 7 h | 6 h | 7 h |
| Rain days | 12 | 15 | 15 |
More details for December
- Daylight
- 13 h 43 min05:42 – 19:25
- UV index
- 12 · extremeclear sky, noon (estimate)All months
- Muggy days
- 26 daysdew point 18 °C or moreAll months
- Wind
- 13 km/haverage daily peakAll months
- Cloud cover
- 54 %on averageAll months
- Hot days
- 19 days30 °C or moreAll months
- Time zone
- UTC−3America/Sao_Paulo
How the score comes together
- Temperatureweight 50 %49 %
- Sunshineweight 20 %52 %
- Few rainy daysweight 30 %25 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in December
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Foz do Iguaçu in December: quick answers
Is Foz do Iguaçu hot in December?
Yes. In December, Foz do Iguaçu is hot: daytime highs average 31 °C and nights stay around 22 °C. On about 19 days the thermometer climbs to 30 °C or more.
Does it rain much in Foz do Iguaçu in December?
It rains often – on about 15 days, adding up to 180 mm.
Foz do Iguaçu month by month
The whole year in Foz do IguaçuAll destinations: BrazilWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences