Foz do Iguaçu weather in June

June in Foz do Iguaçu: warm, rainy, with clean air — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Foz do Iguaçu🇧🇷 Brazil · Southern Brazil & Iguazú · National park80
  1. 51Jan
  2. 54Feb
  3. 59Mar
  4. 72Apr
  5. 74May
  6. 80Jun
  7. 87Jul
  8. 81Aug
  9. 75Sep
  10. 66Oct
  11. 65Nov
  12. 55Dec

#3 of 12 months in Foz do Iguaçu · #753 of 1413 destinations to visit in June · comfort 80/100 (tier A)

Days
24°C
Nights
13°C
Wet days
9
Sun
7.3 h
Humidity
80%
Daylight
11 h
Foz do Iguaçu, Brazil
Photo: Jean Alves · Pexels

Traveller notes on Foz do Iguaçu in June

Notes from nearby Puerto Iguazú (6 km away)

Foz do Iguaçu doesn't have its own notes for June yet — these are about Puerto Iguazú, close enough to share the season.

Puerto Iguazu-forum threads on a June visit describe conditions as genuinely fine, posters calling it a little on the cold side but still nice, with a range roughly between thirteen and twenty-two degrees. Regulars call June through August genuinely the coolest, driest stretch of the year here, several posters naming this the reason conditions feel noticeably different from the humid peak season. Posters call water levels a real concern in June specifically, several regulars warning lower flow can make the falls less dramatic than wetter months. Regulars call fewer crowds and comfortable hiking real upsides of a June visit, several threads naming this a fair tradeoff against reduced water volume. Posters recommend checking recent water-level reports if seeing the falls at full force matters most, several regulars calling this standard given how much flow varies. The record: 23.7C days, 13.2C nights, 120.5mm across nearly 9 days and 81 percent humidity.
PuertoIguazuJuneRegular · June · 1 month ago · about Puerto Iguazú · Read more on Tripadvisor ↗

Other months in Foz do Iguaçu

Foz do Iguacu-forum threads on February weather describe this as genuinely hot and humid, posters calling the Brazilian side's panoramic walkway a real highlight for seeing the full sweep of the falls across the canyon. Regulars call water volume typically strong this time of year, the color sometimes running reddish-brown after heavy rain upstream, a natural effect rather than pollution. Posters describe the mist at several viewpoints as genuinely soaking, ponchos available for rent though many visitors accept getting wet. Regulars recommend a half day on the Brazilian side as sufficient, the Argentine side offering the more extensive trail network for a full day. Posters call a sudden afternoon thunderstorm a real possibility, checking the forecast that morning standing advice. Regulars recommend comfortable clothes regardless of which side you visit. The record: 32.9C days feeling like a punishing 38C, 21.8C nights, 115.5mm across nearly 12 days and 75 percent humidity.
FozDoIguacuFebruaryRegular · February · 1 month ago · Read more on Tripadvisor ↗
Foz do Iguacu-forum threads naming the best months for the falls call March a genuinely strong pick, peak summer crowds thinning while water volume typically stays strong from the wetter months just behind. Posters describe daytime conditions as comfortably warm rather than punishing, evenings cool enough that air conditioning becomes unnecessary most nights. Regulars call the wetter pattern running November through early in the year as generally easing off by March, though a passing system remains possible. Posters recommend flexible plans, a shower rarely lasting long enough to disrupt a full day. Regulars describe visibility and mist as generally favorable this time of year, the full width of the falls usually clear from the main walkways. Posters call March one of the more comfortable months for the Brazilian side specifically. The record: 31.8C days feeling like a punishing 35C, 20.9C nights, an extraordinarily high 122.3mm across nearly 12 days and 76 percent humidity.
FozDoIguacuMarchRegular · March · 1 month ago · Read more on Tripadvisor ↗
Foz do Iguacu-forum threads on September confirm this sits toward the start of a favorable stretch, comfortable temperatures and generally settled conditions on the Brazilian side of the falls compared to the more extreme months. Posters describe water levels as capable of swinging within the same week, one visitor reporting locals calling the river low and the falls comparatively dry just before arrival, only for an upstream system to bring the falls back to a misty, dramatic full flow by the time they visited. Regulars call this unpredictability part of the appeal, no two visits looking quite the same. The Brazilian side's panoramic walkway is repeatedly named the better overview compared to the closer, wetter Argentine trails, both sides commonly combined into a single trip. Posters call September crowds noticeably thinner than peak holiday periods. The record: 29.5C days feeling like a punishing 32C, 16.6C nights, 71 percent humidity and 7.1 hours of sun.
FozDoIguacuSeptemberRegular · September · 1 month ago · Read more on Tripadvisor ↗
August sits at the end of the drier half of the year, and the forum's framing is a trade: sunshine most days, and falls that are not at their strongest, since the lowest water levels fall in July and August. How low depends on rain upriver rather than on the calendar, and the variance is wide - the same month has produced complaints of poor volume and reports that the falls were stunning regardless. The compensations regulars name are cooler air and easier walking on the trails. Our row supports the drier reading without making August dry: 94.1mm over 7.2 precipitation days. The record: 26.5C days, 13.9C nights, humidity 71 percent and 8.8 hours of sun.
DependsOnRainUpriver · August · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Foz do Iguaçu's card on the map.

Foz do Iguaçu climate normals — June

Daytime high24°C / 75°F🌤 warm
Nighttime low13°C / 56°F
Feels like (high)25°C / 77°F
Rainfall121 mm / 4.7 in🌧 rainy
Rainy days9 days
Humidity80%💦 very humid
Dew point14°C / 58°F
Sunshine7.3 h/day
Daylight10.6 h
Wind14 km/h / 9 mph
Air quality (US AQI)27🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Foz do Iguaçu in June

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Busyschool holidays in 2 of the markets that fill it, one of its best months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Foz do Iguaçu's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherFoz do Iguaçu's weather peaks June–August, best around July.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Foz do Iguaçu in June

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Rule

    Timed park tickets, booked online

    1 Jan – 31 DecBook early

    Both sides sell entry by day and hour online and the Brazilian park caps arrivals per hour, so turning up without a slot in high season means waiting or missing it. Two countries, two tickets. Source ↗

What's on around the world in June →

Where is Foz do Iguaçu?

Loading map…

Foz do Iguaçu in June — FAQ

Is June a good time to visit Foz do Iguaçu?
June in Foz do Iguaçu: warm, rainy, with clean air — an excellent time to visit. It ranks #3 of 12 months for Foz do Iguaçu on SeasonMap's comfort score (80/100).
What is the weather like in Foz do Iguaçu in June?
In June, Foz do Iguaçu averages a daily high of 23.7°C and a low of 13.4°C, with about 120.5 mm of rain over roughly 8.7 rainy days.
What is the air quality in Foz do Iguaçu in June?
Foz do Iguaçu has a mean US Air Quality Index of about 27 in June.