Measurements:
°C
°F
CURRENT WEATHER
21:09
Rio Grande
66°F
N 17 mph
Feels like: 66°F
Precip: 0%
World Resorts Brazil Rio Grande Weather

7 Day Weather Forecast

12.16
tue
DAY
76°F
NE 15 mph
precip
100%
NIGHT
64°F
N 10 mph
precip
0%
12.17
wed
DAY
72°F
W 4 mph
precip
0%
NIGHT
68°F
SW 14 mph
precip
0%
12.18
thu
DAY
80°F
SW 6 mph
precip
0%
NIGHT
72°F
SW 14 mph
precip
0%
12.19
fri
DAY
82°F
W 10 mph
precip
0%
NIGHT
72°F
SW 19 mph
precip
0%
12.20
sat
DAY
82°F
SW 17 mph
precip
0%
NIGHT
74°F
SW 17 mph
precip
0%
12.21
sun
DAY
84°F
SW 9 mph
precip
0%
NIGHT
76°F
SW 10 mph
precip
100%
12.22
mon
DAY
84°F
SE 13 mph
precip
100%
NIGHT
76°F
SE 6 mph
precip
100%

Rio Grande Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Rio Grande was 23.9°F. The maximum and minimum values were 22.6°F and 26.3°F respectively.

Rio Grande on the Weather Map

Best Time to Visit Rio Grande
The most sunny months:
July 14 days
August 12 days
May 12 days
The most warm months:
February 81.7 °F
January 81.4 °F
March 80.3 °F
Warmest sea temperature:
February 82.1 °F
January 81.3 °F
March 80.6 °F
The most cold months:
July 58.9 °F
June 60.9 °F
August 61.1 °F
The most rainy months:
September 6 days
May 4 days
July 3 days
The most windy months:
December 13 mph
November 12 mph
October 12 mph
more details