Temperatures in September
It's hot in September in Rio Claro with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 34°C. At night, you can expect temperatures between 24°C and 26°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Rio Claro 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 Rio Claro with hot temperatures, averaging around 33°C during the day and nights close to 25°C. Plenty of days with a chance of precipitation. 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 34°C, with nights close to 25°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days. 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 Rio Claro will be around 33°C, with nights close to 25°C. There’s a significant chance of many days with precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Precipitation in September
In September, there is an average of 155 mm of precipitation, spread over 14 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The average precipitation chance is 48% per day this month.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Rio Claro. 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.
Rio Claro in September |
London | ||
|---|---|---|---|
 Average Temperature |
33°C | 20°C | |
 High Temp |
34°C | 22°C | |
| Low Temp |
32°C | 17°C | |
 Total Precipitation |
155 mm | 44 mm | |
| Rainy Days |
14 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 Rio Claro?
After some sun? Then September isn’t the best time to be in Rio Claro. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Rio Claro runs from June to November.
Temperature records for Rio Claro in September
With 47°C, Rio Claro hit the highest temperature in the last 10 years in September 2014. The lowest daytime temperature in this month was 26°C in 2022. The extreme night temperatures ranged from a low of 22°C to a high of 26°C.
Check out the climate of Rio Claro for all months and discover the best travel time
Daily Temperature in September in Rio Claro
This chart shows the average daily temperatures, both day and night, for each day in September in Rio Claro, 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 Rio Claro
The chart below shows the average daily precipitation in September for Rio Claro, 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 14 days of rain in Rio Claro.
Daily UV Index in September in Rio Claro
This chart shows the average daily UV index in September in Rio Claro, 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 Rio Claro Over the Years
This chart shows the average temperature in September in Rio Claro, measured in degrees Celsius, over the past years.
Total Precipitation in September in Rio Claro Over the Years
This chart shows the average precipitation in September in Rio Claro, 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 Rio Claro
Click on a specific day in September for detailed info on the typical weather on that day in Rio Claro. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Rio Claro
Have you been to Rio Claro in September?
Share your weather experience in September in Rio Claro.
Average Weather in Rio Claro by Month
Click on a month below to see detailed weather info for Rio Claro. 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 Rio Claro for all months at once
