Temperatures in September
It's pleasantly warm in September in Riobamba with an average temperature of 21°C. Temperatures this month range from a low of 19°C to a high of 23°C. At night, you can expect temperatures between 4°C and 6°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Riobamba 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 Riobamba with mild temperatures, averaging around 21°C during the day and nights close to 5°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature stays the same at 21°C, with nights close to 5°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of September
By the end of September, the average daytime temperature in Riobamba will be around 22°C, with nights close to 6°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in September
In September, there is an average of 103 mm of precipitation, spread over 14 days. The wind speed is around 5 Bft, mostly coming from the East.
The average precipitation chance is 47% per day this month. Though it seems average, the weather’s variable. Some days have higher, others lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Riobamba. 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.
Riobamba in September |
London | ||
|---|---|---|---|
 Average Temperature |
21°C | 20°C | |
 High Temp |
23°C | 22°C | |
| Low Temp |
19°C | 17°C | |
 Total Precipitation |
103 mm | 44 mm | |
| Rainy Days |
14 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 Riobamba?
After some sun? Then September isn’t the best time to be in Riobamba. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Riobamba in September
With 39°C, Riobamba hit the highest temperature in the last 10 years in September 2014. The lowest daytime temperature in this month was 8°C in 2022. The extreme night temperatures ranged from a low of -2°C to a high of 11°C.
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Daily Temperature in September in Riobamba
This chart shows the average daily temperatures, both day and night, for each day in September in Riobamba, 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 Riobamba
The chart below shows the average daily precipitation in September for Riobamba, 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 Riobamba.
Daily UV Index in September in Riobamba
This chart shows the average daily UV index in September in Riobamba, 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 Riobamba Over the Years
This chart shows the average temperature in September in Riobamba, measured in degrees Celsius, over the past years.
Total Precipitation in September in Riobamba Over the Years
This chart shows the average precipitation in September in Riobamba, 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 Riobamba
Click on a specific day in September for detailed info on the typical weather on that day in Riobamba. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Riobamba
Have you been to Riobamba in September?
Share your weather experience in September in Riobamba.
Average Weather in Riobamba by Month
Click on a month below to see detailed weather info for Riobamba. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
