Temperatures in September
It's hot in September in São Sebastião da Boa Vista with an average temperature of 34°C. Temperatures this month range from a low of 34°C to a high of 35°C. At night, you can expect temperatures between 24°C and 25°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for São Sebastião da Boa Vista 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 São Sebastião da Boa Vista with hot temperatures, averaging around 35°C during the day and nights close to 25°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature stays the same at 35°C, with nights close to 25°C. There might be a few showers during this period, but plenty of dry days with sunshine too. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in São Sebastião da Boa Vista will be around 35°C, with nights close to 25°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Precipitation in September
In September, there is an average of 92 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the Northeast.
The average precipitation chance is 31% 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 São Sebastião da Boa Vista. 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.
São Sebastião da Boa Vista in September |
London | ||
|---|---|---|---|
 Average Temperature |
34°C | 20°C | |
 High Temp |
35°C | 22°C | |
| Low Temp |
34°C | 17°C | |
 Total Precipitation |
92 mm | 44 mm | |
| Rainy Days |
9 days | 8 days | |
August
UV index
The UV index is a maximum of 10 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 São Sebastião da Boa Vista?
September is a great month to be in São Sebastião da Boa Vista for sunny weather. You’ll get high temperatures and not too much rain this month.
Temperature records for São Sebastião da Boa Vista in September
With 39°C, São Sebastião da Boa Vista hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 30°C in 2021. The extreme night temperatures ranged from a low of 21°C to a high of 27°C.
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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.
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Daily Temperature in September in São Sebastião da Boa Vista
This chart shows the average daily temperatures, both day and night, for each day in September in São Sebastião da Boa Vista, 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 São Sebastião da Boa Vista
The chart below shows the average daily precipitation in September for São Sebastião da Boa Vista, 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 São Sebastião da Boa Vista.
Daily UV Index in September in São Sebastião da Boa Vista
This chart shows the average daily UV index in September in São Sebastião da Boa Vista, 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 São Sebastião da Boa Vista Over the Years
This chart shows the average temperature in September in São Sebastião da Boa Vista, measured in degrees Celsius, over the past years.
Total Precipitation in September in São Sebastião da Boa Vista Over the Years
This chart shows the average precipitation in September in São Sebastião da Boa Vista, 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 São Sebastião da Boa Vista
Click on a specific day in September for detailed info on the typical weather on that day in São Sebastião da Boa Vista. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in São Sebastião da Boa Vista
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Average Weather in São Sebastião da Boa Vista by Month
Click on a month below to see detailed weather info for São Sebastião da Boa Vista. 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 São Sebastião da Boa Vista for all months at once
