The weather in September in Monterrey

It's warm in September in Monterrey with an average temperature of 28°C. Temperatures this month range from a low of 27°C to a high of 29°C. At night, you can expect temperatures between 18°C and 20°C.

Looking for sun? September isn’t a good month to be in Monterrey. 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 Monterrey, Ecuador. 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 34°C in 2014, Monterrey reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 23°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 23°C.

Rainfall amount

In September, there is an average of 160 mm of precipitation, spread over 19 days. The wind speed is around 3 Bft, mostly coming from the West.

Daily weather in September for Monterrey

Click on any day in September to get detailed info about the usual weather on that day in Monterrey. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Monterrey New York
Average temperature 28°C 27°C
Max. temperature 29°C 31°C
Min. temperature 18°C -5°C
Total precipitation 160 mm 57 mm
Rainy days 19 days 9 days

Start of September

The month of September starts in Monterrey with hot temps, averaging around 29°C during the day and nights around 20°C.

Mid September

By mid-September, daytime temps stay steady at around 29°C, with nights around 20°C. There’s a high chance of precipitation during this time.

End of September

By the end of September, the average daytime temperature in Monterrey is around 29°C, while nighttime temps are about 20°C. There’s a significant chance of many days with precipitation.

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Monterrey for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Monterrey, Ecuador. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Monterrey

Temperature in September in Monterrey over the years

Precipitation charts

These charts show the average amount of precipitation in September in Monterrey, Ecuador. 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 Monterrey

Total precipitation in September in Monterrey over the years

Daily UV index in September in Monterrey

This chart shows the average daily UV index in September in Monterrey, 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 Monterrey

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Average weather in Monterrey by month

Click on a month below to see detailed weather info for Monterrey. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.