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Cabo Frio Weather in December
December in Cabo Frio brings high temperatures, with highs of 27°C (81°F) and nights dropping to 23°C (73°F). Rainfall is on the higher side this month, averaging around 124 mm (4.9 in), so keep a rain jacket handy.
Rainfall in Cabo Frio in December
Expect around 21 days of rain based on historical data, with 124 mm (4.9 in) average. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Cabo Frio in December
In December, Cabo Frio gets high temperatures, with highs of 27°C (81°F). Nights cool to around 23°C (73°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights stay warm at around 23°C (73°F), so light bedding and good ventilation are worth thinking about.If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Cabo Frio. Our weather planner can help you explore destinations with more pleasant weather conditions.
Cabo Frio Temperature in December
Min Temperature
23°C (73°F)
Max Temperature
27°C (81°F)
Chance of Rain
70%
Precipitation
124 mm (4.9 in)
Rainy days
21 days
Humidity
82%
Cabo Frio Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cabo Frio - and find the best time to visit.
Daily Historical Temperatures
40-year average (1976-2025)
Based on our historical records, temperatures in Cabo Frio typically stay consistent throughout December, with daily highs averaging around 27°C (81°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in December
Historical weather records for Cabo Frio in December
Browse day-by-day weather records for Cabo Frio spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cabo Frio historical weather extremes in December
According to our 19 years of weather records for Cabo Frio, the following extremes were recorded between 2006 and 2025.
- The hottest December day on record in Cabo Frio reached 37°C (99°F) (December 30, 2015).
- On December 8, 2021, Cabo Frio saw its coldest December day with temperatures maxing out at 22°C (72°F).
- Cabo Frio registered its coldest December night on December 8, 2019, with temperatures dropping to 16°C (61°F).
Best Places in Brazil in December
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Cabo Frio in December
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in Cabo Frio in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Cabo Frio 3-Day Forecast
More climate data for Cabo Frio
See the full Cabo Frio climate overview or explore weather in Brazil.
Popular in December
Where to go in December - average daytime high across popular destinations.
Fortaleza
31°C (88°F) Rio de Janeiro
30°C (86°F) Salvador
29°C (84°F) Búzios
27°C (81°F) Gramado28°C (82°F) Florianópolis28°C (82°F) Sao Paulo28°C (82°F) Paraty27°C (81°F) Bucket list
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