Weather in Cabo Frio: September
 |
Average day temperature: | 77.0°F |
| Average night temperature: | 68.4°F | |
 |
Sea water temperature: | 71.0°F |
 |
Number of sunny days: | 15 days |
| Day length: | 11.7 - 12.3 hours | |
 |
Number of rainy days: | 1 day |
| Precipitation totals: | 0.7 in. | |
| more information | ||
forecast
| Cabo Frio |
temperature
| Cabo Frio |
Air temperature in September, °F
The highest day temperature during September of 2025 was 81°F. At the same time the lowest night temperature was 63°F. Daily and nightly averages during September were 72.7°F and 67.9°F.
Sea water temperature in Cabo Frio in September, °F
The average sea water temperature in September of 2025 was 70.7°F. The highest and lowest sea temperatures during the month were 72.3°F and 68.7°F.
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Cabo Frio in September is 0.7 in. Other months of the year show relatively similar values.
The average wind speed value in September is 12.0 mph It makes September most windy month of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 7.4.
Best time for vacation in Cabo Frio
Cabo Frio on a weather map
4 mph
7 mph
9 mph
11 mph
11 mph
13 mph
13 mph
13 mph
