7-day weather forecast for Foz do Iguacu
7-day weather forecast for Foz do Iguacu: 23°C, Overcast, Humidity 45%, Wind 14 km/h.
Foz do Iguacu sits at 25.5° south latitude, in the subtropics, 179 m above sea level, in the America/Sao_Paulo time zone. Over the week ahead highs range from 23° to 28° and lows from 11° to 21°, averaging 20°.
Forecast rainfall totals 185 mm, and 3 of the seven days carry a chance above 50%. Today the sun rises at 06:02 and sets at 18:45: 12:43 of daylight.
| Conditions | high | low | rain | Wind | UV index | |
|---|---|---|---|---|---|---|
| Today | Overcast | 23° | 15° | 2% | 14 km/h | 6 |
| Tomorrow | Mainly clear | 23° | 12° | 0% | 13 km/h | 9 |
| Mon, Oct 19 | Overcast | 23° | 11° | 0% | 11 km/h | 9 |
| Tue, Oct 20 | Rain showers | 28° | 13° | 25% | 9 km/h | 9 |
| Wed, Oct 21 | Thunderstorm | 25° | 18° | 93% | 16 km/h | 9 |
| Thu, Oct 22 | Thunderstorm | 25° | 18° | 87% | 13 km/h | 2 |
| Fri, Oct 23 | Thunderstorm | 25° | 21° | 86% | 19 km/h | 3 |
Weather data by Open-Meteo (ECMWF, GFS, ICON models and national weather services). Updated every 15 minutes.
Weather in Foz do Iguacu month by month
The table gathers the 2016-2025 climate normals for Foz do Iguacu: average highs and lows, total rainfall and number of rainy days for each month of the year.
Foz do Iguacu has an annual mean temperature of 22.7°. The warmest month is January, when highs sit around 31.2°; the coldest is July, with average lows of 12.7°. The 18.5° gap between those two ends of the calendar is the measure of how much the year swings here.
Rainfall totals about 1,687 mm a year, spread over roughly 130 rainy days. The wettest month is October, averaging 234.3 mm across 13 days; the driest is July, with 68.8 mm.
| Month | Average high | Average low | Rainfall | Rainy days |
|---|---|---|---|---|
| January | 31.2° | 23° | 184.5 mm | 16 |
| February | 30.9° | 22.1° | 130.8 mm | 13 |
| March | 30.1° | 21.1° | 147.8 mm | 13 |
| April | 27.5° | 18.5° | 111.3 mm | 9 |
| May | 23.6° | 15.4° | 162.8 mm | 11 |
| June | 21.8° | 13.6° | 127.6 mm | 9 |
| July | 22.4° | 12.7° | 68.8 mm | 6 |
| August | 24.2° | 13.9° | 98.2 mm | 7 |
| September | 27.3° | 16.9° | 100.7 mm | 9 |
| October | 28.2° | 18.7° | 234.3 mm | 13 |
| November | 29.9° | 19.7° | 141.2 mm | 10 |
| December | 30.9° | 21.6° | 179.1 mm | 14 |
When to visit Foz do Iguacu
For travellers who plan around the weather, April and June–September tend to be the most comfortable stretch: average highs between 21.8° and 27.5° and rainfall below the yearly average.
What to expect each month
- In January, highs sit near 31.2° and lows near 23°, with about 184.5 mm of rain over 16 days.
- In February, highs sit near 30.9° and lows near 22.1°, with about 130.8 mm of rain over 13 days.
- In March, highs sit near 30.1° and lows near 21.1°, with about 147.8 mm of rain over 13 days.
- In April, highs sit near 27.5° and lows near 18.5°, with about 111.3 mm of rain over 9 days.
- In May, highs sit near 23.6° and lows near 15.4°, with about 162.8 mm of rain over 11 days.
- In June, highs sit near 21.8° and lows near 13.6°, with about 127.6 mm of rain over 9 days.
- In July, highs sit near 22.4° and lows near 12.7°, with about 68.8 mm of rain over 6 days.
- In August, highs sit near 24.2° and lows near 13.9°, with about 98.2 mm of rain over 7 days.
- In September, highs sit near 27.3° and lows near 16.9°, with about 100.7 mm of rain over 9 days.
- In October, highs sit near 28.2° and lows near 18.7°, with about 234.3 mm of rain over 13 days.
- In November, highs sit near 29.9° and lows near 19.7°, with about 141.2 mm of rain over 10 days.
- In December, highs sit near 30.9° and lows near 21.6°, with about 179.1 mm of rain over 14 days.
Recorded extremes
Across 2016-2025, the thermometer reached 40° at the top of the series and fell to 1.2° at the bottom. These are observed values, not averages: they show what the city has actually faced.
Normals computed from the ERA5 reanalysis (Copernicus/ECMWF), 2016-2025 series.
FAQ
What is the temperature in Foz do Iguacu right now?
It is 23°C in Foz do Iguacu right now, with overcast. It feels like 21°C.
Will it rain in Foz do Iguacu today?
The peak chance of rain today is 2%, with about 0 mm expected.
What will the weather be tomorrow in Foz do Iguacu?
Tomorrow the high is 23° and the low 12°, with mainly clear.
Where does the data come from and how often is it updated?
Data comes from the ECMWF, GFS and ICON models and national weather services via Open-Meteo, updated every 15 minutes.
What is the warmest month in Foz do Iguacu?
The warmest month is January, with average highs of 31.2° and lows of 23°.
Does it rain a lot in Foz do Iguacu?
The city gets about 1,687 mm a year over 130 rainy days. The wettest month is October, with 234.3 mm.
When is the best time to visit Foz do Iguacu?
On weather grounds, April and June–September combine the most agreeable temperatures with below-average rainfall.