Weekly note
Rio de Janeiro
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Photo by Wilfredor, CC0, via Wikimedia Commons.

The numbers

Daily high28°C
Nightly low22°C
Feels like, afternoon33°C
Rainy days, 1 mm or more9 · 127 mm
Humidity82%
Sunshine10.5 h/day
Daylight13.5 h/day
Days over 35°C1
Crowds80 / 100, higher is quieter

Ten-year averages for this calendar month. A rainy day is one with at least 1 mm of rain, as a weather station counts it. The model these figures come from drizzles more than a rain gauge, the more so the warmer the month, so its days count from 2 mm, rising to 5 mm in the hottest.

Weather read at Copacabana, 19 km from the airport (GIG): ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.

How busy it gets

December: quieter than usual. Busiest in February; quietest in October.

Public holidays in December

Holidays crowd a place out and push fares up around them; they count toward the crowd score above.

Rio de Janeiro in pictures

What to pack

  • Summer clothes by day, highs around 28°C.
  • A packable rain jacket for the 9 or so rainy days.
  • Sun protection: about 11 hours of sunshine a day.
  • Humidity averages 82%; breathable fabrics dry faster.

Each line is a threshold over the ten-year figures above, not advice from anywhere else.

Before you go

Type C plugs at 127 / 220 V. Drives on the right. The currency is the Brazilian real. UK Foreign Office: avoid all but essential travel to parts. Everything for Brazil: cost of living, languages, emergency numbers and health.

On arrival in Rio de Janeiro: the apps, paying, getting around, tipping and the emergency numbers.

December elsewhere

In December from

The other months at Rio de Janeiro

← November · All twelve months at Rio de Janeiro · January →

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