AI-generatedFoz do Iguaçu at a glance
- Best time
- Apr – Sep
- Warmest month
- Jan · 31°
- Sunshine a year
- 1,960 h
- Rain a year
- 1,717 mm
- Climate
- Subtropical
- Time zone
- UTC−3
- Elevation
- 179 m
Climate in Foz do Iguaçu
Foz do Iguaçu has a subtropical climate with warm summers and mild winters. January is the warmest month with average highs of 31 °C, while June is the coolest at 22 °C. With around 1,960 hours of sunshine a year, Foz do Iguaçu is moderately sunny; November is the sunniest month with 6.6 hours a day.
Holiday weather through the year
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 23°
- Midday, 13:00: about 28°
- Afternoon, 16:00: about 28°
- Evening, 20:00: about 24°
- Night, 23:00: about 22°
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.
What is the weather like in Foz do Iguaçu in October?
In October, Foz do Iguaçu is hot: daytime highs average 28 °C, and nights cool down to about 19 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 197 mm in total. On about 10 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 Foz do Iguaçu.
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
- 10 days30 °C or moreAll months
- Time zone
- UTC−3America/Sao_Paulo
How the score comes together
- Temperatureweight 50 %80 %
- Sunshineweight 20 %37 %
- Few rainy daysweight 30 %37 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Sunshine hours in Foz do Iguaçu
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 Foz do Iguaçu, 41 % of the day.
Sunshine hours: measured at the weather station 23 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Foz do Iguaçu
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 it, 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.
Rain in Foz do Iguaçu: 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, Foz do Iguaçu has about 13 rainy days with 197 mm of rain in total.
Wind and clouds in Foz do Iguaçu
How breezy and how cloudy Foz do Iguaçu 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 Foz do Iguaçu typically peaks at 15 km/h during the day: Beaufort 3, light breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 56 % of the sky over Foz do Iguaçu: 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 and humidity in Foz do Iguaçu
How often the day gets hot in Foz do Iguaçu (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, Foz do Iguaçu has about 10 hot days, with an average daytime high of 28 °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
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Foz do Iguaçu
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 (10+ muggy days)
PleasantOctober: nights around 19°. 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 (13°), the warmest in January (23°). Tropical nights of 20 °C and more are the rule from November to March; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) from April to May and from August to October. 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 | 39 | 31° | 23° | 6.5 h | 15 | 152 |
| FebruaryFeb | 45 | 31° | 23° | 6.4 h | 14 | 145 |
| MarchMar | 51 | 30° | 22° | 5.6 h | 12 | 133 |
| AprilApr | 75 | 27° | 19° | 5.6 h | 9 | 137 |
| MayMay | 73 | 23° | 15° | 4.2 h | 9 | 144 |
| JuneJun | 71 | 22° | 14° | 3.7 h | 9 | 134 |
| JulyJul | 76 | 22° | 13° | 4.5 h | 8 | 104 |
| AugustAug | 82 | 24° | 15° | 5.5 h | 7 | 95 |
| SeptemberSep | 72 | 27° | 17° | 4.4 h | 10 | 140 |
| OctoberOct | 58 | 28° | 19° | 5.2 h | 13 | 197 |
| NovemberNov | 58 | 29° | 20° | 6.6 h | 12 | 158 |
| DecemberDec | 42 | 31° | 22° | 6.1 h | 15 | 180 |
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
25.55° S, 54.59° W · 179 m · America/Sao_Paulo
Best time to visit Foz do Iguaçu
The best time to visit Foz do Iguaçu is from April to September. For sightseeing, day trips and hiking, conditions are most comfortable from April to September. Rain is most frequent in October and from December to February; the wettest month is October with 197 mm.
Foz do Iguaçu through the seasons
How the weather changes over the seasons, with averages for each.
Foz do Iguaçu in spring
Sep – Nov
Good
- 27–29 °C by day
- 5 h of sun a day
- 34 rainy days in all
Foz do Iguaçu in summer
Dec – Feb
Fair
- 31 °C by day
- 6 h of sun a day
- 44 rainy days in all
Foz do Iguaçu in autumn
Mar – May
Good
- 23–30 °C by day
- 5 h of sun a day
- 30 rainy days in all
Foz do Iguaçu in winter
Jun – Aug
Good
- 22–24 °C by day
- 5 h of sun a day
- 25 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Foz do Iguaçu for you.
Your best months: May, July – August
Based on the climate averages; tap a month to see its details.
Compare two months in Foz do Iguaçu
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 Foz do Iguaçu: score 82 against 58. In August, days are 4 °C cooler than in October. August has 6 fewer rainy days.
| Month | October | August |
|---|---|---|
| Weather score | 58 | 82better |
| Day high | 28° | 24° |
| Night low | 19° | 15° |
| 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.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Apr – Sep
15–28 °C and not too much rain
Rainy months
Oct, Dec – Feb
12 or more rainy days
Foz do Iguaçu month by month
The typical weather for every month at a glance.
39January31° · 7 h
In January, Foz do Iguaçu is hot: daytime highs average 31 °C, and even at night it stays warm at around 23 °C. The sun shines for around 7 hours a day. It rains often – on about 15 days, adding up to 152 mm. On about 21 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 Foz do Iguaçu.
Foz do Iguaçu in January45February31° · 6 h
In February, Foz do Iguaçu is hot: daytime highs average 31 °C, and even at night it stays warm at around 23 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 145 mm in total. On about 17 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is a so-so month for a holiday in Foz do Iguaçu.
Foz do Iguaçu in February51March30° · 6 h
In March, Foz do Iguaçu is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 133 mm in total. On about 15 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 Foz do Iguaçu.
Foz do Iguaçu in March75April27° · 6 h
In April, Foz do Iguaçu is hot: daytime highs average 27 °C, and nights cool down to about 19 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 137 mm in total. On about 7 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 Foz do Iguaçu.
Foz do Iguaçu in April73May23° · 4 h
In May, Foz do Iguaçu is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. Expect around 4 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 Foz do Iguaçu.
Foz do Iguaçu in May71June22° · 4 h
In June, Foz do Iguaçu is warm: daytime highs average 22 °C, and nights cool down to about 14 °C. The sun is scarce, with only about 4 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 Foz do Iguaçu.
Foz do Iguaçu in June76July22° · 5 h
In July, Foz do Iguaçu is warm: daytime highs average 22 °C, and nights cool down to about 13 °C. Expect around 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 Foz do Iguaçu.
Foz do Iguaçu in July82August24° · 6 h
In August, Foz do Iguaçu is warm: daytime highs average 24 °C, and nights cool down to about 15 °C. Expect around 6 hours of sunshine a day. Rain falls on about 7 days, adding up to 95 mm. All in all, August is an excellent month for a holiday in Foz do Iguaçu.
Foz do Iguaçu in August72September27° · 4 h
In September, Foz do Iguaçu is warm: daytime highs average 27 °C, and nights cool down to about 17 °C. Expect around 4 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 140 mm in total. On about 8 days the thermometer climbs to 30 °C or more. All in all, September is a good month for a holiday in Foz do Iguaçu.
Foz do Iguaçu in September58October28° · 5 h
In October, Foz do Iguaçu is hot: daytime highs average 28 °C, and nights cool down to about 19 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 197 mm in total. On about 10 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 Foz do Iguaçu.
Foz do Iguaçu in October58November29° · 7 h
In November, Foz do Iguaçu is hot: daytime highs average 29 °C, and even at night it stays warm at around 20 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 158 mm in total. On about 13 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 Foz do Iguaçu.
Foz do Iguaçu in November42December31° · 6 h
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.
Foz do Iguaçu in DecemberFoz do Iguaçu compared
Put Foz do Iguaçu side by side with another destination.
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Foz do Iguaçu vs. Asunción
In October the holiday weather in Foz do Iguaçu and Asunción is about equally good (score 58 vs. 62). During the day Asunción is 1 °C warmer than Foz do Iguaçu. Asunción gets 2 more hours of sunshine a day.
| in October | Foz do Iguaçu | Asunción |
|---|---|---|
| Holiday score | 58 | 62 |
| Daytime high | 28° | 29° |
| Sunshine | 5 h | 7 h |
| Rainy days | 13 | 12 |
| Best time | Apr – Sep | Apr – Sep |
Through the year
Brazil in October: the best places
In October, Foz do Iguaçu ranks 13 of 19 destinations in this country.
- Natal29°27°90
- 2Fortaleza30°27°79
- 3Salvador27°26°78
- 4Belo Horizonte27°75
- 5João Pessoa29°27°75
- 6Porto Alegre24°20°71
- 7Ipanema District28°22°71
- 8Rio de Janeiro28°22°71
- 13Foz do IguaçuThis page28°58
Planning a trip to Foz do Iguaçu
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Foz do Iguaçu 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.
Foz do Iguaçu has its best school-holiday weather during the summer holidays (score 80) and its weakest during the Christmas holidays (score 41).
- 68
Easter holidays
Mar – Apr
Good
- 28 °C by day
- 5.6 h of sun a day
- 10 rainy days a month
- 73
May half-term
May – Jun
Good
- 23 °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
- 23 °C by day
- 5.2 h of sun a day
- 8 rainy days a month
Good for: Sightseeing & walks
- 58
October half-term
Oct
Fair
- 28 °C by day
- 5.2 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 41
Christmas holidays
Dec – Jan
Fair
- 31 °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.
Frequently asked questions about Foz do Iguaçu
When is the best time to visit Foz do Iguaçu?
The best time to visit Foz do Iguaçu 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 Foz do Iguaçu?
January is the warmest month, with average highs of 31 °C and nights around 23 °C. June is the coolest month at 22 °C.
When does it rain most in Foz do Iguaçu?
Rain is most 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 Foz do Iguaçu get?
Foz do Iguaçu 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 Foz do Iguaçu in?
Foz do Iguaçu uses the time zone America/Sao_Paulo, at UTC−3 all year.
How long is the flight from London to Foz do Iguaçu?
A nonstop flight from London to Foz do Iguaçu 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 Foz do Iguaçu?
Foz do Iguaçu has its best school-holiday weather during the summer holidays (score 80) and its weakest during the Christmas holidays (score 41). Holiday ratings (0–100): Easter holidays 68, May half-term 73, Summer holidays 80, October half-term 58, Christmas holidays 41.
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