Measurements:
°C
°F
Cabo Frio
72°F
SW 26 mph
Feels like: 72°F
Precip: 41%
World Resorts Brazil Cabo Frio Weather

7 Day Weather Forecast

09.08
tue
DAY
70°F
SW 18 mph
precip
67%
NIGHT
72°F
SW 25 mph
precip
57%
09.09
wed
DAY
74°F
SW 18 mph
precip
50%
NIGHT
74°F
SW 20 mph
precip
33%
09.10
thu
DAY
76°F
SW 9 mph
precip
29%
NIGHT
74°F
SW 22 mph
precip
47%
09.11
fri
DAY
78°F
SW 11 mph
precip
12%
NIGHT
76°F
SW 19 mph
precip
13%
09.12
sat
DAY
74°F
E 6 mph
precip
14%
NIGHT
72°F
N 17 mph
precip
24%
09.13
sun
DAY
72°F
NW 13 mph
precip
18%
NIGHT
70°F
W 26 mph
precip
26%
09.14
mon
DAY
66°F
NW 14 mph
precip
94%
NIGHT
72°F
SW 26 mph
precip
46%

Cabo Frio Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Cabo Frio was 21.5°F. The maximum and minimum values were 20.4°F and 22.4°F respectively.

Cabo Frio on the Weather Map

Best Time to Visit Cabo Frio
The most sunny months:
July 19 days
June 17 days
August 16 days
The most warm months:
March 85.2 °F
February 84.8 °F
January 84.1 °F
Warmest sea temperature:
March 81.2 °F
February 80.2 °F
April 79.8 °F
The most cold months:
July 77.1 °F
August 77.3 °F
June 77.9 °F
The most rainy months:
November 5 days
January 5 days
February 4 days
The most windy months:
September 12 mph
August 11 mph
October 10 mph