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Iguazu in January: Weather, Average temperature and Climate

Discover the weather for Iguazu in January and if it’s a good time to travel (based on historical data).
Check flight prices to Iguazu on Avionero:
January

Weather in Iguazu in January 2025

OK Weather
Hot
🌧️
Rainy
January could be a good time to visit Iguazu, as the weather is generally fine. The average high temperature is around +88°F, and there are typically 4 sunny days in January. However, expect about 21 rainy days, and total monthly rainfall of approximately 191 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+88°F
Avg. max. temperature
+54°F
Min.
+104°F
Max.
191 mm
Total precipitation
80%
Avg. humidity
1 m/s
Avg. wind
4 ☀️
Sunny Days
2 ⛅️
Cloudy
21 🌦
Rainy
Our opinion: Iguazu has OK weather in January.

Average temperature in Iguazu in January

Here are the expected maximum, average and minimum temperatures in Iguazu for January based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in January is +88°F with a maximum of +97°F and a minimum of +63°F.

The average maximum temperature goes down 42% by the end of the month, compared with the beginning of the month, from +97°F to +82°F.

Is Iguazu warm or cold in January?

Iguazu is typically hot in January.

Maximum temperatures go up compared to the previous month from +88°F to +88°F. The minimum temperature also goes up from +70°F to +70°F.

Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.

January is one of the warmest months in Iguazu, here is the comparison with other months:

Climate in Iguazu in January

Iguazu weather looks like this, on average, in January and the surrounding months.
DecemberJanuaryFebruary
Avg. temperature
+88°F+88°F+86°F
Min. temperature
+50°F+54°F+52°F
Max. temperature
+104°F+104°F+100°F
Rainfall
196 mm191 mm180 mm
Wind
1 m/s1 m/s1 m/s
Humidity
77%80%81%
Air pressure
1009 HPa1009 HPa1010 HPa
Sunny days
744
Cloudy days
322
Rainy days
182119
Snowy days
000

January weather is still as ok as in December. The temperature levels stay the same in the area of +88°F for average maximum temperature during the day. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 196 mm to 191 mm. Humidity rises from 77% to 80%. The average wind speed doesn’t change much during January, staying around 1 m/s. The days becoming less sunny, going from 7 sunny days in December to 4 in January.

February brings much the same weather, it remains ok.

Wind

Wind speed in Iguazu in January based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Iguazu is gradually decreasing during January, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during January in Iguazu based on historical data.
Last Year
Historical Data
Total precipitation in January is about 148 mm, with a 58% chance of rain on a typical day. The maximum amount of rainfall per day is around 33 mm, which is moderate rain. January is a pretty wet month with over 18 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
January is one of the rainiest months in Iguazu, here is a comparison with other months, total mm:
Iguazu wettest month is October, where a typical day has a 48% chance of precipitation and 208 mm of rainfall per day. August, on the other hand, is the driest month with a mere 29% chance of precipitation and 103 mm of rainfall per day.

How was the weather last January in Iguazu?

This is the weather in Iguazu in January 2023:
1 January
☀️
+97°F
2 January
🌧️
+85°F
3 January
🌧️
+80°F
4 January
☀️
+87°F
5 January
☀️
+89°F
6 January
☀️
+87°F
7 January
☀️
+86°F
8 January
☀️
+86°F
9 January
☁️
+85°F
10 January
🌧️
+83°F
11 January
☀️
+89°F
12 January
☁️
+89°F
13 January
☁️
+81°F
14 January
🌧️
+80°F
15 January
🌧️
+84°F
16 January
☀️
+89°F
17 January
☀️
+91°F
18 January
☀️
+89°F
19 January
☀️
+90°F
20 January
☀️
+91°F
21 January
☀️
+90°F
22 January
☁️
+80°F
23 January
🌧️
+90°F
24 January
☀️
+92°F
25 January
☀️
+95°F
26 January
☀️
+94°F
27 January
☀️
+95°F
28 January
☀️
+94°F
29 January
☁️
+86°F
30 January
🌫️
+85°F
31 January
🌧️
+82°F
In January 2023 Iguazu had 18 sunny days, 5 cloudy days, and 7 rainy days. The average maximum temperature was +88°F, with an absolute maximum of +97°F and a minimum of +79°F. The average humidity was 78%, with a maximum of 100% and a minimum of 40%. The average wind speed was 2 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in January?

Climate Change Over the Years

This is how Iguazu climate has changed over the last 43 years.

The climate in Iguazu in January has not changed that much over the last 43 years.

The average temperature was the lowest in 1983 (+78°F) and the highest in 2020 (+83°F). The driest year was 2020 with only 1219 mm of rainfall, and the wettest year was 1983 with 3257 mm.

FAQ

Frequently asked questions about the weather in Iguazu in January:

Is January a good time to visit Iguazu?

It’s always a good time to visit Iguazu, but the weather is changeable in January, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Iguazu in January?

Absolutely, January is hot in Iguazu. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Iguazu rainy in January?

Iguazu is often rainy in January. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Iguazu in January?

Usually, it’s not very sunny in Iguazu in January, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Argentina

Check out the weather for other cities in Argentina.

Monthly weather in Iguazu

Source of the data

For this page, we’ve looked at the typical weather in Iguazu, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.