AI-generatedPuerto Iguazú at a glance
- Best time
- Apr – Sep
- Warmest month
- Jan · 33°
- Sunshine a year
- 1,960 h
- Rain a year
- 1,717 mm
- Climate
- Subtropical
- Time zone
- UTC−3
- Elevation
- 177 m
Climate in Puerto Iguazú
Puerto Iguazú has a subtropical climate with warm summers and mild winters. January is the warmest month with average highs of 33 °C, while June is the coolest at 23 °C. With around 1,960 hours of sunshine a year, Puerto Iguazú is moderately sunny; November is the sunniest month with 6.6 hours a day.
Holiday weather through the year
Best time to visit Puerto Iguazú
The best time to visit Puerto Iguazú is from April to September. For sightseeing, day trips and hiking, conditions are most comfortable from May to September. Rain is frequent in October and from December to February; the wettest month is October with 197 mm.
Puerto Iguazú through the seasons
How the weather changes over the seasons, with averages for each.
Puerto Iguazú in spring
Sep – Nov
Fair
- 28–31 °C by day
- 5.4 h of sun a day
- 34 rainy days in all
Puerto Iguazú in summer
Dec – Feb
Poor
- 32–33 °C by day
- 6.3 h of sun a day
- 44 rainy days in all
Puerto Iguazú in autumn
Mar – May
Good
- 24–31 °C by day
- 5.1 h of sun a day
- 30 rainy days in all
Puerto Iguazú in winter
Jun – Aug
Good
- 23–26 °C by day
- 4.6 h of sun a day
- 25 rainy days in all
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
May – Sep
15–28 °C and not too much rain
Rainy months
Oct, Dec – Feb
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Puerto Iguazú for you.
Your best months: May – July
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Fair
Best time to visit: April – September
Keep in mindFrequent rain
A typical day in October
- Morning, 08:00: about 22°
- Midday, 13:00: about 29°
- Afternoon, 16:00: about 29°
- Evening, 20:00: about 24°
- Night, 23:00: about 21°
06:0418:44
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:50–06:35 · evening 18:13–18:58
- Blue hour
- Morning 05:41–05:50 · evening 18:58–19:07
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Puerto Iguazú compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs rise from about 29° at the start of the month to 30° at the end. The days get 0.7 h longer.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 29° | 30° |
| Night-time low | 17° | 18° |
| Daylight | 12.3 h | 13.0 h |
What is the weather like in Puerto Iguazú in October?
In October, Puerto Iguazú is hot: daytime highs average 30 °C, and nights cool down to about 18 °C. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 197 mm in total. On about 14 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Puerto Iguazú.
More details for October
- Daylight
- 12 h 39 min06:04 – 18:44
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 19 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 56 %on averageAll months
- Hot days
- 14 days30 °C or moreAll months
- Time zone
- UTC−3offset from UTC
How the score comes together
- Temperatureweight 50 %69 %
- Sunshineweight 20 %37 %
- Few rainy daysweight 30 %37 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Rain jacket or umbrella
Compare two months in Puerto Iguazú
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Puerto Iguazú: score 82 against 53. In August, days are 4 °C cooler than in October. August has 6 fewer rainy days.
| Month | October | August |
|---|---|---|
| Holiday weather score | 53 | 82better |
| Daytime high | 30° | 26° |
| Night-time low | 18° | 13° |
| Sunshine | 5.2 h | 5.5 h |
| Rainy days | 13 | 7better |
| Rainfall | 197 mm | 95 mmbetter |
| Muggy days | 19 | 2better |
Based on the climate averages 1996–2025.
Puerto Iguazú month by month
The typical weather for every month at a glance.
31January33° · 6.5 h
In January, Puerto Iguazú is hot: daytime highs average 33 °C, and even at night it stays warm at around 22 °C. The sun shines for around 6.5 hours a day. It rains often – on about 15 days, adding up to 152 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is not an ideal month for a holiday in Puerto Iguazú.
Puerto Iguazú in January37February32° · 6.4 h
In February, Puerto Iguazú is hot: daytime highs average 32 °C, and even at night it stays warm at around 21 °C. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 145 mm in total. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is not an ideal month for a holiday in Puerto Iguazú.
Puerto Iguazú in February44March31° · 5.6 h
In March, Puerto Iguazú is hot: daytime highs average 31 °C, and even at night it stays warm at around 20 °C. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 133 mm in total. On about 22 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a so-so month for a holiday in Puerto Iguazú.
Puerto Iguazú in March67April29° · 5.6 h
In April, Puerto Iguazú is hot: daytime highs average 29 °C, and nights cool down to about 18 °C. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 137 mm in total. On about 11 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in Puerto Iguazú.
Puerto Iguazú in April73May24° · 4.2 h
In May, Puerto Iguazú is warm: daytime highs average 24 °C, and nights cool down to about 14 °C. Expect around 4.2 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 144 mm in total. All in all, May is a good month for a holiday in Puerto Iguazú.
Puerto Iguazú in May71June23° · 3.7 h
In June, Puerto Iguazú is warm: daytime highs average 23 °C, and nights cool down to about 13 °C. The sun is scarce, with only about 3.7 hours a day. Rain is frequent, with about 9 rainy days and 134 mm in total. All in all, June is a good month for a holiday in Puerto Iguazú.
Puerto Iguazú in June76July23° · 4.5 h
In July, Puerto Iguazú is warm: daytime highs average 23 °C, and nights cool down to about 12 °C. Expect around 4.5 hours of sunshine a day. Rain falls on about 8 days, adding up to 104 mm. All in all, July is a good month for a holiday in Puerto Iguazú.
Puerto Iguazú in July82August26° · 5.5 h
In August, Puerto Iguazú is warm: daytime highs average 26 °C, and nights cool down to about 13 °C. Expect around 5.5 hours of sunshine a day. Rain falls on about 7 days, adding up to 95 mm. On about 7 days the thermometer climbs to 30 °C or more. All in all, August is an excellent month for a holiday in Puerto Iguazú.
Puerto Iguazú in August68September28° · 4.4 h
In September, Puerto Iguazú is hot: daytime highs average 28 °C, and nights cool down to about 15 °C. Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 140 mm in total. On about 10 days the thermometer climbs to 30 °C or more. All in all, September is a good month for a holiday in Puerto Iguazú.
Puerto Iguazú in September53October30° · 5.2 h
In October, Puerto Iguazú is hot: daytime highs average 30 °C, and nights cool down to about 18 °C. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 197 mm in total. On about 14 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a so-so month for a holiday in Puerto Iguazú.
Puerto Iguazú in October51November31° · 6.6 h
In November, Puerto Iguazú is hot: daytime highs average 31 °C, and nights cool down to about 19 °C. The sun shines for around 6.6 hours a day. Rain is frequent, with about 12 rainy days and 158 mm in total. On about 19 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a so-so month for a holiday in Puerto Iguazú.
Puerto Iguazú in November36December32° · 6.1 h
In December, Puerto Iguazú is hot: daytime highs average 32 °C, and even at night it stays warm at around 21 °C. Expect around 6.1 hours of sunshine a day. It rains often – on about 15 days, adding up to 180 mm. On about 25 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is not an ideal month for a holiday in Puerto Iguazú.
Puerto Iguazú in DecemberClimate in detail
Year & climate tableWarmest in January: 33°
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Puerto Iguazú
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
- muggy month (15+ muggy days)
PleasantOctober: nights around 18°. Ideal for sleeping, often with the window open. Muggy on about 19 days (dew point 18 °C or more).
The coolest nights are in July (12°), the warmest in January (22°). Tropical nights of 20 °C and more are the rule from December to March; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in April and from September to November. It is muggy (dew point 18 °C or more) on about 189 days a year, mostly from October to April.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 31 | 33° | 22° | 6.5 h | 15 | 152 |
| FebruaryFeb | 37 | 32° | 21° | 6.4 h | 14 | 145 |
| MarchMar | 44 | 31° | 20° | 5.6 h | 12 | 133 |
| AprilApr | 67 | 29° | 18° | 5.6 h | 9 | 137 |
| MayMay | 73 | 24° | 14° | 4.2 h | 9 | 144 |
| JuneJun | 71 | 23° | 13° | 3.7 h | 9 | 134 |
| JulyJul | 76 | 23° | 12° | 4.5 h | 8 | 104 |
| AugustAug | 82 | 26° | 13° | 5.5 h | 7 | 95 |
| SeptemberSep | 68 | 28° | 15° | 4.4 h | 10 | 140 |
| OctoberOct | 53 | 30° | 18° | 5.2 h | 13 | 197 |
| NovemberNov | 51 | 31° | 19° | 6.6 h | 12 | 158 |
| DecemberDec | 36 | 32° | 21° | 6.1 h | 15 | 180 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), 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
25.60° S, 54.57° W · 177 m · America/Argentina/Cordoba
Sunshine1,960 hours a year
Sunshine hours in Puerto Iguazú
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.2 of 12.7 hours of daylight in Puerto Iguazú, 41 % of the daylight hours.
Sunshine hours: measured at the weather station 18 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
Rain1,717 mm a year, most in October
Rain in Puerto Iguazú: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Puerto Iguazú has about 13 rainy days with 197 mm of rain in total.
UV indexUp to 12 in December
UV index in Puerto Iguazú
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 11 · extremeAvoid the midday sun; SPF 50+, covering clothes, hat and sunglasses.
The sun is strongest in December (UV 12).
Minutes until sunburn in October
- Very fair skin
- about 10 min
- Fair skin
- about 15 min
- Light brown skin
- about 20 min
- Olive skin
- about 30 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & cloudsWindiest in September: 15 km/h
Wind and clouds in Puerto Iguazú
How breezy and how cloudy Puerto Iguazú is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Puerto Iguazú typically peaks at 15 km/h during the day: Beaufort 3, gentle breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 56 % of the sky over Puerto Iguazú: variable cloud, with about 5.2 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat & humidity159 days of 30° or more a year
Heat and humidity in Puerto Iguazú
How often the day gets hot in Puerto Iguazú (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Puerto Iguazú has about 14 hot days, with an average daytime high of 30 °C: often muggy. The air feels warmer than the thermometer says: light, airy clothes and slow days help.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Puerto Iguazú
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Puerto Iguazú in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Puerto Iguazú has its best school-holiday weather during the summer holidays (score 80) and its weakest during the Christmas holidays (score 34).
- 60
Easter holidays
Mar – Apr
Good
- 29 °C by day
- 5.6 h of sun a day
- 10 rainy days a month
- 73
May half-term
May – Jun
Good
- 24 °C by day
- 4.1 h of sun a day
- 9 rainy days a month
Good for: Sightseeing & walks
- 80
Summer holidays
Jul – Aug
ExcellentBest holidays
- 25 °C by day
- 5.2 h of sun a day
- 8 rainy days a month
Good for: Sightseeing & walks
- 53
October half-term
Oct
Fair
- 30 °C by day
- 5.2 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 34
Christmas holidays
Dec – Jan
Poor
- 32 °C by day
- 6.3 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 12 h 35 min
- Distance
- 10,060 km
- Time zone
- UTC−3
- Jet lag
- About 3 days (4 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Argentina
- Currency
- Argentine Peso (ARS)
- Language
- Spanish
- Sockets
- Type C, I · 220 V
- Dialling code
- +54
- Emergency number
- 911
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Puerto Iguazú compared
Put Puerto Iguazú side by side with another destination.
Puerto Iguazú vs Foz do Iguaçu
In October the holiday weather in Puerto Iguazú and Foz do Iguaçu is about equally good (score 53 vs 49). During the day it is about as warm in Foz do Iguaçu as in Puerto Iguazú.
| in October | Puerto Iguazú | Foz do Iguaçu |
|---|---|---|
| Holiday weather score | 53 | 49 |
| Daytime high | 30° | 30° |
| Sunshine | 5 h | 5 h |
| Rainy days | 13 | 13 |
| Best time | Apr – Sep | May – Sep |
Through the year
Best places in the country
Argentina in October: the best places
In October, Puerto Iguazú ranks 29 among the 31 nearest destinations in this country.
- Neuquén23°97
- 2Trelew22°97
- 3Comodoro Rivadavia19°9°96
- 4San Juan28°95
- 5Puerto San Julián17°7°92
- 6Mendoza24°89
- 7Bahía Blanca23°88
- 8Córdoba27°87
- 29Puerto IguazúThis page30°53
Places nearby4 places within 240 km
Near Puerto Iguazú
Other destinations close by.
Places with a similar climatee.g. Encarnación and Posadas
Places with a climate like Puerto Iguazú
Destinations whose weather through the year is closest to Puerto Iguazú's – good alternatives.
Frequently asked questions about Puerto Iguazú
When is the best time to visit Puerto Iguazú?
The best time to visit Puerto Iguazú is from April to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Puerto Iguazú?
January is the warmest month, with average highs of 33 °C and nights around 22 °C. June is the coolest month at 23 °C.
When does it rain most in Puerto Iguazú?
Rain is frequent in October and from December to February; the wettest month is October with 197 mm. The driest month is August with 95 mm.
How many hours of sunshine does Puerto Iguazú get?
Puerto Iguazú gets around 1,960 hours of sunshine a year. The sunniest month is November with 6.6 hours a day; in June there are 3.7 hours a day.
What time zone is Puerto Iguazú in?
Puerto Iguazú is on UTC−3 all year.
How long is the flight from London to Puerto Iguazú?
A nonstop flight from London to Puerto Iguazú takes about 12 h 35 min, for a straight-line distance of about 10,060 km. Most routes need a change of planes, which adds time.
Which school holidays are best for Puerto Iguazú?
Puerto Iguazú has its best school-holiday weather during the summer holidays (score 80) and its weakest during the Christmas holidays (score 34). Holiday ratings (0–100): Easter holidays 60, May half-term 73, summer holidays 80, October half-term 53, Christmas holidays 34.