15.09
tue
tue
Day
70°F
N 14 mph
Precip.
27%
27%
Night
68°F
NE 8 mph
Precip.
59%
59%
16.09
wed
wed
Day
68°F
NE 14 mph
Precip.
49%
49%
Night
68°F
N 11 mph
Precip.
34%
34%
17.09
thu
thu
Day
68°F
NW 8 mph
Precip.
23%
23%
Night
68°F
W 14 mph
Precip.
54%
54%
18.09
fri
fri
Day
68°F
W 16 mph
Precip.
43%
43%
Night
68°F
SW 16 mph
Precip.
32%
32%
19.09
sat
sat
Day
68°F
SW 17 mph
Precip.
30%
30%
Night
68°F
SW 18 mph
Precip.
24%
24%
20.09
sun
sun
Day
73°F
SW 22 mph
Precip.
15%
15%
Night
70°F
SW 18 mph
Precip.
24%
24%
21.09
mon
mon
Day
73°F
N 6 mph
Precip.
28%
28%
Night
72°F
SW 10 mph
Precip.
26%
26%
sea water
temperature
temperature
| Rio das Ostras |
monthly
weather
weather
| Rio das Ostras |
current
weather
weather
| Rio das Ostras |
14 days
forecast
forecast
| Rio das Ostras |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 72.2°F. The highest and lowest sea temperatures during the month were 72.9°F and 71.2°F.
Air temperature in Rio das Ostras, °F
Precipitation total in Rio das Ostras, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Rio das Ostras
Rio das Ostras on a weather map
Places in Brazil:
Name
°F
24 Hours Forecast
Rio das Ostras
Local time: 13:07
September 15, tuesday
1500
70°F
N
13 mph
13 mph
1800
68°F
NE
9 mph
9 mph
2100
68°F
E
9 mph
9 mph
September 16, wednesday
0000
68°F
NE
8 mph
8 mph
0300
66°F
E
4 mph
4 mph
0600
68°F
NE
12 mph
12 mph
0900
68°F
NE
13 mph
13 mph
1200
68°F
NE
14 mph
14 mph
