Temperatures in September
It's warm in September in Cabo Frio with an average temperature of 27°C. Temperatures this month range from a low of 26°C to a high of 30°C. At night, you can expect temperatures between 18°C and 21°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Cabo Frio in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Cabo Frio with hot temperatures, averaging around 27°C during the day and nights close to 19°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-September
By mid-September, the average daytime temperature rises to around 28°C, with nights close to 20°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
Temperatures vary between day and night, so it’s smart to wear layers.
End of September
By the end of September, the average daytime temperature in Cabo Frio will be around 28°C, with nights close to 20°C. A shower might show up, but overall the weather will be dry and sunny.
As it gets cooler in the evening, it’s best to wear layers.
Discover cheap trips to Cabo Frio 
Precipitation in September
In September, there is an average of 52 mm of precipitation, spread over 9 days. The wind speed is around 5 Bft, mostly coming from the Southeast.
The average precipitation chance is 29% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Cabo Frio. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Cabo Frio in September |
London | ||
|---|---|---|---|
 Average Temperature |
27°C | 20°C | |
 High Temp |
30°C | 22°C | |
| Low Temp |
26°C | 17°C | |
 Total Precipitation |
52 mm | 44 mm | |
| Rainy Days |
9 days | 8 days | |
August
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Cabo Frio?
Want nice weather? Then September is a great time to be in Cabo Frio. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Cabo Frio in September
With 36°C, Cabo Frio hit the highest temperature in the last 10 years in September 2015. The lowest daytime temperature in this month was 19°C in 2022. The extreme night temperatures ranged from a low of 11°C to a high of 23°C.
Check out the climate of Cabo Frio for all months and discover the best travel time
Curious about the climate in other parts of Brazil? Check out the weather and climate in places like Rio de Janeiro, Salvador, Pipa, or have a look at other destinations in Brazil.
Plan your next holiday
Don’t miss the best holiday deals for Cabo Frio and see what our partners have for you.
Daily Temperature in September in Cabo Frio
This chart shows the average daily temperatures, both day and night, for each day in September in Cabo Frio, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Cabo Frio
The chart below shows the average daily precipitation in September for Cabo Frio, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 9 days of rain in Cabo Frio.
Daily UV Index in September in Cabo Frio
This chart shows the average daily UV index in September in Cabo Frio, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Cabo Frio Over the Years
This chart shows the average temperature in September in Cabo Frio, measured in degrees Celsius, over the past years.
Total Precipitation in September in Cabo Frio Over the Years
This chart shows the average precipitation in September in Cabo Frio, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Cabo Frio
Click on a specific day in September for detailed info on the typical weather on that day in Cabo Frio. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Cabo Frio
Have you been to Cabo Frio in September?
Share your weather experience in September in Cabo Frio.
Average Weather in Cabo Frio by Month
Click on a month below to see detailed weather info for Cabo Frio. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Cabo Frio for all months at once
