12.18
thu
thu
DAY
72°F
W 3 mph
precip
100%
100%
NIGHT
70°F
W 4 mph
precip
0%
0%
12.19
fri
fri
DAY
80°F
W 6 mph
precip
67%
67%
NIGHT
74°F
SW 4 mph
precip
0%
0%
12.20
sat
sat
DAY
84°F
NW 8 mph
precip
100%
100%
NIGHT
74°F
SW 4 mph
precip
0%
0%
12.21
sun
sun
DAY
88°F
NW 9 mph
precip
89%
89%
NIGHT
74°F
SW 4 mph
precip
0%
0%
12.22
mon
mon
DAY
90°F
W 9 mph
precip
0%
0%
NIGHT
78°F
SW 4 mph
precip
0%
0%
12.23
tue
tue
DAY
96°F
W 6 mph
precip
0%
0%
NIGHT
80°F
S 3 mph
precip
0%
0%
12.24
wed
wed
DAY
98°F
NW 6 mph
precip
0%
0%
NIGHT
82°F
SE 2 mph
precip
0%
0%
12.25
thu
thu
DAY
98°F
NW 9 mph
precip
0%
0%
NIGHT
80°F
E 3 mph
precip
0%
0%
12.26
fri
fri
DAY
96°F
NW 9 mph
precip
50%
50%
NIGHT
78°F
E 5 mph
precip
0%
0%
12.27
sat
sat
DAY
88°F
NW 9 mph
precip
0%
0%
NIGHT
76°F
SW 4 mph
precip
0%
0%
12.28
sun
sun
DAY
94°F
NW 10 mph
precip
0%
0%
NIGHT
80°F
SW 3 mph
precip
0%
0%
12.29
mon
mon
DAY
98°F
NW 8 mph
precip
0%
0%
NIGHT
82°F
NE 4 mph
precip
0%
0%
12.30
tue
tue
DAY
96°F
N 10 mph
precip
0%
0%
NIGHT
82°F
NW 3 mph
precip
0%
0%
12.31
wed
wed
DAY
94°F
NW 9 mph
precip
0%
0%
NIGHT
80°F
S 4 mph
precip
0%
0%
Sea water
temperature
temperature
| Rio de Janeiro |
Weather in
December
December
| Rio de Janeiro |
7 day weather
forecast
forecast
| Rio de Janeiro |
10 day weather
forecast
forecast
| Rio de Janeiro |
14 day weather
forecast
forecast
| Rio de Janeiro |
Monthly weather
averages
averages
| Rio de Janeiro |
Current Weather
Conditions
Conditions
| Rio de Janeiro |
When is the Best
Time to Visit?
Time to Visit?
| Rio de Janeiro |
Rio de Janeiro Sea Water Temperature in December, °F
The average sea surface temperature in December 2025 for Rio de Janeiro was 79.7°F. The maximum and minimum values were 77.8°F and 82.2°F respectively.
Rio de Janeiro on the Weather Map
Brazil Resorts:
NAME
F°
| Armacao dos Buzios |  |
+74 |
| Barra da Tijuca |  |
+70 |
| Buzios | |
+74 |
| Florianopolis |  |
+68 |
| Fortaleza |  |
+82 |
| Jericoacoara | |
+80 |
| Joao Pessoa | |
+82 |
| Natal | |
+84 |
| Recife | |
+82 |
| Rio de Janeiro | |
+70 |
| Rio Grande |  |
+68 |
| Salvador | |
+80 |
| Santos | |
+72 |
| Sao Paulo | |
+64 |
| Xangri-la | |
+66 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Rio de Janeiro
Local time: 06:09
18 dec, thursday
| 0900 | |
70°F | S 2 mph |
| 1200 | |
72°F | W 3 mph |
| 1500 | |
70°F | W 3 mph |
| 1800 | |
70°F | W 5 mph |
| 2100 | |
70°F | W 5 mph |
19 dec, friday
| 0000 | |
70°F | W 4 mph |
| 0300 | |
70°F | SW 4 mph |
| 0600 | |
72°F | SW 3 mph |