UruguayThe weather in September in Montevideo
It's pleasantly warm in September in Montevideo with an average temperature of 19°C. Temperatures this month range from a low of 16°C to a high of 21°C. At night, you can expect temperatures between 8°C and 12°C.
Looking for sun? September isn’t a good month to be in Montevideo. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Montevideo, Uruguay. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 30°C in 2018, Montevideo reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 9°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 1°C to a highest value of 18°C.
Rainfall amount
In September, there is an average of 124 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in September for Montevideo
Click on any day in September to get detailed info about the usual weather on that day in Montevideo. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Montevideo | New York | |
|---|---|---|
| Average temperature | 19°C | 27°C |
| Max. temperature | 21°C | 31°C |
| Min. temperature | 8°C | -5°C |
| Total precipitation | 124 mm | 57 mm |
| Rainy days | 15 days | 9 days |
Start of September
The month of September starts in Montevideo with mild temps, averaging around 18°C during the day and nights around 10°C.
Mid September
By mid-September, daytime temps rise to around 20°C, with nights around 10°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Montevideo is around 21°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
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Temperature charts
These charts show the average temperatures in September in Montevideo, Uruguay. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Montevideo
Temperature in September in Montevideo over the years
Precipitation charts
These charts show the average amount of precipitation in September in Montevideo, Uruguay. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Montevideo
Total precipitation in September in Montevideo over the years
Daily UV index in September in Montevideo
This chart shows the average daily UV index in September in Montevideo, 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.
Weather experiences in September in Montevideo
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Average weather in Montevideo by month
Click on a month below to see detailed weather info for Montevideo. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.