Rio de Janeiro in December
Find out everything about the water temperature in Rio de Janeiro in December. Average, minimum and maximum recorded temperatures as well as daily temperature in December for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in December
Minimum:
71.0 °F
Average:
76.4 °F
Maximum:
82.1 °F
Sea water temperature in Rio de Janeiro in December
In the city of Rio de Janeiro, the month of December is a great time for swimming. The minimum recorded temperature during this month was 71.0°F on December 7, 2015, with an average temperature being 76.4°F and a maximum temperature reaching 82.1°F on December 29, 2016.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Dec 1 | 75.3°F | 75.0°F | 78.1°F |
| Dec 2 | 75.3°F | 74.7°F | 78.4°F |
| Dec 3 | 75.2°F | 74.4°F | 78.4°F |
| Dec 4 | 74.9°F | 74.7°F | 78.4°F |
| Dec 5 | 75.1°F | 74.4°F | 77.6°F |
| Dec 6 | 74.8°F | 74.5°F | 78.3°F |
| Dec 7 | 75.2°F | 77.2°F | 80.4°F |
| Dec 8 | 74.9°F | 76.3°F | 79.8°F |
| Dec 9 | 75.0°F | 76.6°F | 79.9°F |
| Dec 10 | 75.4°F | 77.8°F | 79.5°F |
| Dec 11 | 75.4°F | 77.7°F | 75.7°F |
| Dec 12 | 75.6°F | 75.6°F | 76.4°F |
| Dec 13 | 75.9°F | 74.7°F | 74.8°F |
| Dec 14 | 76.0°F | 75.6°F | 74.5°F |
| Dec 15 | 76.8°F | 75.8°F | 76.9°F |
| Dec 16 | 77.5°F | 78.5°F | 78.4°F |
| Dec 17 | 77.3°F | 76.5°F | 78.3°F |
| Dec 18 | 76.9°F | 75.1°F | 76.8°F |
| Dec 19 | 76.8°F | 75.1°F | 75.4°F |
| Dec 20 | 77.6°F | 75.7°F | 76.2°F |
| Dec 21 | 77.4°F | 77.0°F | 75.1°F |
| Dec 22 | 77.3°F | 77.0°F | 75.0°F |
| Dec 23 | 77.4°F | 76.9°F | 77.8°F |
| Dec 24 | 77.4°F | 76.9°F | 78.8°F |
| Dec 25 | 77.4°F | 75.7°F | 78.3°F |
| Dec 26 | 77.3°F | 73.0°F | 79.6°F |
| Dec 27 | 77.5°F | 73.6°F | 79.4°F |
| Dec 28 | 77.2°F | 73.9°F | 77.6°F |
| Dec 29 | 77.5°F | 75.8°F | 75.9°F |
| Dec 30 | 77.9°F | 76.7°F | 78.5°F |
| Dec 31 | 78.1°F | 75.5°F | 78.8°F |
In Rio de Janeiro, the months October through May offer comfortable swimming conditions, which amounts to 244 swimming days.
The warmest water in Rio de Janeiro was recorded on February 14, 2018, reaching a 85.4°F. While the coldest temperature occurred on August 8, 2018, dipping to 67.7°F. The average readings by season are 78.7°F in Winter, 77.4°F in Spring, 72.1°F in Summer, and 73.7°F in Autumn.
The average temperature in December is slightly warmer than November's average of 74.5°F. And in January, the temperature is expected to rise further, potentially reaching an average of 79.7°F.
Popular neighboring cities and resorts
| City | Water temperature* | Distance** |
|---|---|---|
| Niterói |
81.0°F
|
5mi |
| Duque de Caxias |
82.5°F
|
12mi |
| São João de Meriti |
82.5°F
|
14mi |
| Belford Roxo |
82.5°F
|
17mi |
* current water temperature in this city
** straight line distance from Rio de Janeiro