Foz do Iguaçu in December
In December, Foz do Iguaçu averages 31°C (87°F) during the day and 22°C (72°F) at night, with frequent rain — about 15 days of the month see precipitation (182 mm total).
ShoulderConditions are warm and beach-friendly. Plan for unsettled weather and bring rain gear.
December is one of the wetter and less comfortable months in Foz do Iguaçu. If your dates are flexible, consider a different time of year.
How December compares to the rest of the year in Foz do Iguaçu
December is one of the warmest months in Foz do Iguaçu (2nd of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 3°C above the annual average (27°C). December runs 1°C warmer than November (30°C) and stays flat into January.
December sunrise & sunset in Foz do Iguaçu
Times shown for Foz do Iguaçu local time (America/Sao_Paulo), calculated for the 15th of December. They shift by a few minutes day to day across the month.
Photography light in Foz do Iguaçu — December
Golden-hour and blue-hour windows for the 15th of December, in Foz do Iguaçu's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Foz do Iguaçu in December
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on December's tier (Shoulder) and Foz do Iguaçu's popularity.
Crowds & pricing — December in Foz do Iguaçu
Foz do Iguaçu is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — December in Foz do Iguaçu
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Foz do Iguaçu in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 31°C / 87°F | 24°C / 75°F | 192 mm | 17 | — |
| February | 30°C / 87°F | 23°C / 73°F | 127 mm | 13 | — |
| March | 29°C / 85°F | 21°C / 70°F | 162 mm | 12 | — |
| April | 27°C / 81°F | 19°C / 66°F | 104 mm | 7 | — |
| May | 23°C / 74°F | 16°C / 61°F | 152 mm | 11 | — |
| June | 22°C / 71°F | 14°C / 58°F | 127 mm | 10 | — |
| July | 23°C / 73°F | 14°C / 57°F | 106 mm | 7 | — |
| August | 25°C / 76°F | 15°C / 59°F | 100 mm | 7 | — |
| September | 27°C / 81°F | 18°C / 64°F | 129 mm | 9 | — |
| October | 29°C / 84°F | 20°C / 68°F | 213 mm | 13 | — |
| November | 30°C / 85°F | 20°C / 69°F | 159 mm | 12 | — |
| December | 31°C / 87°F | 22°C / 72°F | 182 mm | 15 | — |
Other cities with similar December weather
🌍 See the full ranked list of climate twins for Foz do Iguaçu in December →
Frequently asked questions
How hot is Foz do Iguaçu in December?
In December, Foz do Iguaçu averages a high of 31°C (87°F) and a low of 22°C (72°F) — generally hot.
Does it rain a lot in Foz do Iguaçu in December?
December is quite rainy in Foz do Iguaçu, with about 15 rainy days on average.
Is December a good time to visit Foz do Iguaçu?
December is hot but on the rainy side. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Foz do Iguaçu in December?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full December packing list for Foz do Iguaçu for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.