05.09
sat
sat
Day
75°F
N 7 mph
Precip.
10%
10%
Night
70°F
NE 7 mph
Precip.
52%
52%
06.09
sun
sun
Day
68°F
NE 11 mph
Precip.
43%
43%
Night
63°F
N 10 mph
Precip.
67%
67%
07.09
mon
mon
Day
61°F
S 1 mph
Precip.
51%
51%
Night
61°F
SW 8 mph
Precip.
48%
48%
08.09
tue
tue
Day
66°F
SW 6 mph
Precip.
23%
23%
Night
66°F
SW 7 mph
Precip.
13%
13%
09.09
wed
wed
Day
77°F
W 2 mph
Precip.
47%
47%
Night
70°F
S 4 mph
Precip.
30%
30%
10.09
thu
thu
Day
77°F
N 5 mph
Precip.
19%
19%
Night
72°F
SW 4 mph
Precip.
39%
39%
11.09
fri
fri
Day
77°F
W 1 mph
Precip.
21%
21%
Night
72°F
SW 9 mph
Precip.
18%
18%
sea water
temperature
temperature
| Rio de Janeiro |
monthly
weather
weather
| Rio de Janeiro |
current
weather
weather
| Rio de Janeiro |
14 days
forecast
forecast
| Rio de Janeiro |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 71.3°F. The highest and lowest sea temperatures during the month were 72.7°F and 70.2°F.
Air temperature in Rio de Janeiro, °F
Precipitation total in Rio de Janeiro, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Rio de Janeiro
Rio de Janeiro on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Rio de Janeiro
Local time: 06:54
September 05, saturday
0900
73°F
NE
7 mph
7 mph
1200
75°F
N
7 mph
7 mph
1500
73°F
NW
2 mph
2 mph
1800
72°F
SW
10 mph
10 mph
2100
72°F
NE
10 mph
10 mph
September 06, sunday
0000
70°F
NE
7 mph
7 mph
0300
70°F
NE
9 mph
9 mph
0600
70°F
NE
9 mph
9 mph
