September weather forecastAllende, Mexico

September

Weather in September

September, the first month of the autumn in Allende, is also a moderately hot month, with temperature in the range of an average low of 19.7°C (67.5°F) and an average high of 29.5°C (85.1°F).

Temperature

The onset of September results in a small decrease in the average high-temperature, moderately receding from a tropical 33.4°C (92.1°F) in August to a warm 29.5°C (85.1°F). Allende, in September, experiences an average temperature of 19.7°C (67.5°F) at night.

Heat index

September's average heat index is evaluated at a hot 33°C (91.4°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

With an average relative humidity of 67%, September is the most humid month.

Rainfall

The month with the most rainfall in Allende is September, when the rain falls for 19 days and typically aggregates up to 84mm (3.31") of precipitation.

Snowfall

In Allende, snow does not fall in February through December.

Daylight

In September, the average length of the day is 12h and 17min.
On the first day of September, sunrise is at 6:21 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:27 pm CST.

Sunshine

In Allende, Mexico, the average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 6 suggests this advice:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

In September, in Allende, the average high-temperature is 29.5°C (85.1°F), and the average low-temperature is 19.7°C (67.5°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 33°C (91.4°F).

September is the most humid month in Allende, Mexico, with an average relative humidity of 67%.

The average relative humidity in September is 67%.

The month with the most rainfall in Allende, Mexico, is September, when the rain falls for 19 days and typically aggregates up to 84mm (3.31") of precipitation.

In September, in Allende, Mexico, the rain falls for 19 days. Throughout September, 84mm (3.31") of precipitation is accumulated.

February through December are months without snowfall.

In September, the average day length is 12h and 17min.

On the first day of September in Allende, sunrise is at 6:21 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:27 pm CST.

In Allende, Mexico, the average sunshine duration in September is 9.2h.

In Allende, Mexico, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Allende, Mexico

  • Average high temperature in September: 29.5°C

The warmest month (with the highest average high temperature) is August (33.4°C).
The month with the lowest average high temperature is January (20.3°C).

  • Average low temperature in September: 19.7°C

The month with the highest average low temperature is August (21.3°C).
The coldest month (with the lowest average low temperature) is January (9.3°C).

Average pressure in September
Allende, Mexico

  • Average pressure in September: 1014.2mbar

The month with the highest atmospheric pressure is January (1019.5mbar).
The month with the lowest atmospheric pressure is May (1012mbar).

Average wind speed in September
Allende, Mexico

  • Average wind speed in September: 8.5km/h

The windiest month (with the highest average wind speed) is July (12.2km/h).
The calmest month (with the lowest average wind speed) is December (7.8km/h).

Average humidity in September
Allende, Mexico

  • Average humidity in September: 67%

The month with the highest relative humidity is September (67%).
The month with the lowest relative humidity is April (51%).

Average rainfall in September
Allende, Mexico

  • Average rainfall in September: 84mm

The wettest month (with the highest rainfall) is September (84mm).
The driest month (with the least rainfall) is February (4mm).

Average rainfall days in September
Allende, Mexico

  • Average rainfall days in September: 19 days

The month with the highest number of rainy days is September (19 days).
The month with the least rainy days is February (3.5 days).

Average snowfall days in September
Allende, Mexico

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Allende, Mexico

  • Average daylight in September: 12h and 18min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in September: 9h and 12min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are November and December (Average sunshine: 7h and 12min).

Average sunshine days in September
Allende, Mexico

  • Average sunshine days in September: 8.8 days

The month with the most sunshine days is January (26.4 days).
The month with the least sunshine days is September (8.8 days).

Average UV index in September
Allende, Mexico

  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in September
Allende, Mexico

  • Average cloud cover in September: 26

The month with the most cloud cover is September (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in September
Allende, 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).