Temperatures in September
It's hot in September in São Francisco do Maranhão with an average temperature of 36°C. Temperatures this month range from a low of 34°C to a high of 38°C. At night, you can expect temperatures between 22°C and 24°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for São Francisco do Maranhão 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 Francisco do Maranhão with hot temperatures, averaging around 35°C during the day and nights close to 23°C. There’s little chance of precipitation. The weather is 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 rises to around 36°C, with nights close to 24°C. Not much precipitation expected during this period. It’s mostly dry with sunshine. 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 Francisco do Maranhão will be around 37°C, with nights close to 24°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Precipitation in September
According to weather history, there is only 8,4 mm of precipitation in September. The wind speed is around 3 Bft, mostly coming from the Southeast.
The precipitation chance averages 11% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for São Francisco do Maranhão. 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 Francisco do Maranhão in September |
London | ||
|---|---|---|---|
 Average Temperature |
36°C | 20°C | |
 High Temp |
38°C | 22°C | |
| Low Temp |
34°C | 17°C | |
 Total Precipitation |
8,4 mm | 44 mm | |
| Rainy Days |
3 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 Francisco do Maranhão?
September isn’t a good time to be in São Francisco do Maranhão. The average temperature of 36°C this month is uncomfortably hot for a pleasant stay.
Temperature records for São Francisco do Maranhão in September
With 43°C, São Francisco do Maranhão hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 27°C in 2018. The extreme night temperatures ranged from a low of 17°C to a high of 29°C.
Check out the climate of São Francisco do Maranhão 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.
Daily Temperature in September in São Francisco do Maranhão
This chart shows the average daily temperatures, both day and night, for each day in September in São Francisco do Maranhão, 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 Francisco do Maranhão
The chart below shows the average daily precipitation in September for São Francisco do Maranhão, 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 3 days of rain in São Francisco do Maranhão.
Daily UV Index in September in São Francisco do Maranhão
This chart shows the average daily UV index in September in São Francisco do Maranhão, 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 Francisco do Maranhão Over the Years
This chart shows the average temperature in September in São Francisco do Maranhão, measured in degrees Celsius, over the past years.
Total Precipitation in September in São Francisco do Maranhão Over the Years
This chart shows the average precipitation in September in São Francisco do Maranhão, 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 Francisco do Maranhão
Click on a specific day in September for detailed info on the typical weather on that day in São Francisco do Maranhão. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in São Francisco do Maranhão
Have you been to São Francisco do Maranhão in September?
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Average Weather in São Francisco do Maranhão by Month
Click on a month below to see detailed weather info for São Francisco do Maranhão. 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 Francisco do Maranhão for all months at once
