September weather forecastEl Desemboque, Mexico
September
Weather in September
September, the first month of the autumn in El Desemboque, is still a torrid month, with temperature in the range of an average low of 26.1°C (79°F) and an average high of 35.3°C (95.5°F).Temperature
The initiation of September sees an average high-temperature of a still fiery hot 35.3°C (95.5°F), showing minor variations from the previous month. An average nighttime temperature of 26.1°C (79°F) is witnessed throughout September.Humidity
In September, the average relative humidity is 39%.Rainfall
In September, the rain falls for 8.4 days. Throughout September, 43mm (1.69") of precipitation is accumulated. Throughout the year, in El Desemboque, Mexico, there are 62.7 rainfall days, and 199mm (7.83") of precipitation is accumulated.Snowfall
September is the only month when snow falls. September has the most snowfall days of the year. Snow falls for 0.1 days.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:07 am and sunset at 6:51 pm. On the last day of September, sunrise is at 6:22 am and sunset at 6:15 pm MST.
Sunshine
The average sunshine in September in El Desemboque, Mexico, is 9.6h.UV index
June through September, with an average maximum UV index of 8, are months with the highest UV index. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 8 suggests these recommendations:
Ensure precautions are always in place. The risk to skin and eyes is high without them. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
El Desemboque, Mexico
- Average high temperature in September: 35.3°C
The warmest month (with the highest average high temperature) is June (38.2°C).
The month with the lowest average high temperature is December (20.1°C).
- Average low temperature in September: 26.1°C
The month with the highest average low temperature is August (28.8°C).
The coldest month (with the lowest average low temperature) is January (10.3°C).
Average pressure in September
El Desemboque, Mexico
- Average pressure in September: 1009.5mbar
The month with the highest atmospheric pressure is January (1017.2mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in September
El Desemboque, Mexico
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is May (13.7km/h).
The calmest month (with the lowest average wind speed) is January (8.5km/h).
Average humidity in September
El Desemboque, Mexico
- Average humidity in September: 39%
The month with the highest relative humidity is December (42%).
The month with the lowest relative humidity is June (22%).
Average rainfall in September
El Desemboque, Mexico
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is July (46mm).
The driest month (with the least rainfall) is May (1mm).
Average rainfall days in September
El Desemboque, Mexico
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is May (1.1 days).
Average snowfall days in September
El Desemboque, Mexico
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
El Desemboque, Mexico
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
El Desemboque, Mexico
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (11 days).
Average UV index in September
El Desemboque, Mexico
- Average UV index in September: 8
The months with the highest UV index are June, July, August and September (UV index 8).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover in September
El Desemboque, Mexico
- Average cloud cover in September: 13
The month with the most cloud cover is July (Cloud cover 18).
The months with the least cloud cover are May and June (Cloud cover 6).
Average visibility in September
El Desemboque, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





