12.16
tue
tue
DAY

76°F
NE 19 mph
precip
0%
0%
NIGHT

64°F
N 9 mph
precip
0%
0%
12.17
wed
wed
DAY

74°F
W 6 mph
precip
0%
0%
NIGHT

68°F
SW 14 mph
precip
0%
0%
12.18
thu
thu
DAY

80°F
SW 8 mph
precip
0%
0%
NIGHT

72°F
S 14 mph
precip
0%
0%
12.19
fri
fri
DAY

82°F
SW 9 mph
precip
0%
0%
NIGHT

74°F
SW 19 mph
precip
0%
0%
12.20
sat
sat
DAY

82°F
SW 19 mph
precip
0%
0%
NIGHT

74°F
SW 11 mph
precip
0%
0%
12.21
sun
sun
DAY

78°F
NW 3 mph
precip
100%
100%
NIGHT

76°F
SW 14 mph
precip
100%
100%
12.22
mon
mon
DAY

84°F
S 15 mph
precip
100%
100%
NIGHT

72°F
N 16 mph
precip
23%
23%
12.23
tue
tue
DAY

76°F
NW 15 mph
precip
0%
0%
NIGHT

70°F
W 9 mph
precip
0%
0%
12.24
wed
wed
DAY

78°F
W 9 mph
precip
0%
0%
NIGHT

70°F
SW 11 mph
precip
0%
0%
12.25
thu
thu
DAY

80°F
SW 9 mph
precip
0%
0%
NIGHT

76°F
SW 14 mph
precip
0%
0%
12.26
fri
fri
DAY

86°F
SW 9 mph
precip
0%
0%
NIGHT

78°F
S 13 mph
precip
0%
0%
12.27
sat
sat
DAY

88°F
SW 7 mph
precip
23%
23%
NIGHT

76°F
SE 8 mph
precip
100%
100%
12.28
sun
sun
DAY

86°F
NE 11 mph
precip
0%
0%
NIGHT

72°F
NE 15 mph
precip
0%
0%
12.29
mon
mon
DAY

76°F
N 14 mph
precip
0%
0%
NIGHT

70°F
W 9 mph
precip
0%
0%
Sea water
temperature
temperature
| Rio Grande |
Weather in
December
December
| Rio Grande |
7 day weather
forecast
forecast
| Rio Grande |
10 day weather
forecast
forecast
| Rio Grande |
14 day weather
forecast
forecast
| Rio Grande |
Monthly weather
averages
averages
| Rio Grande |
Current Weather
Conditions
Conditions
| Rio Grande |
When is the Best
Time to Visit?
Time to Visit?
| Rio Grande |
Rio Grande Sea Water Temperature in December, °F
The average sea surface temperature in December 2025 for Rio Grande was 77.8°F. The maximum and minimum values were 75.2°F and 82.6°F respectively.
Brazil Resorts:
NAME
F°
| Armacao dos Buzios | ![]() |
+76 |
| Buzios | ![]() |
+76 |
| Florianopolis | ![]() |
+66 |
| Fortaleza | ![]() |
+78 |
| Jericoacoara | ![]() |
+80 |
| Joao Pessoa | ![]() |
+78 |
| Natal | ![]() |
+80 |
| Recife | ![]() |
+80 |
| Rio de Janeiro | ![]() |
+76 |
| Rio Grande | ![]() |
+64 |
| Salvador | ![]() |
+80 |
| Santos | ![]() |
+74 |
| Sao Paulo | ![]() |
+70 |
| Unamar | ![]() |
+76 |
| Xangri-la | ![]() |
+64 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Rio Grande
Local time: 22:45
17 dec, wednesday
| 0000 | ![]() |
64°F | N 9 mph |
| 0300 | ![]() |
62°F | NE 7 mph |
| 0600 | ![]() |
64°F | NE 6 mph |
| 0900 | ![]() |
70°F | SE 2 mph |
| 1200 | ![]() |
74°F | W 6 mph |
| 1500 | ![]() |
74°F | W 11 mph |
| 1800 | ![]() |
70°F | W 14 mph |
| 2100 | ![]() |
68°F | SW 15 mph |






























