September weather forecast
Santiago Yolomécatl, Mexico

September

Weather in September

September, the first month of the autumn in Santiago Yolomécatl, is still a pleasant month, with an average temperature fluctuating between 13.2°C (55.8°F) and 22.3°C (72.1°F).

Temperature

The introduction of September sees an average high-temperature of a pleasant 22.3°C (72.1°F), hardly deviating from August. Santiago Yolomécatl, during the month of September, experiences an average low-temperature of 13.2°C (55.8°F).

Humidity

September is the most humid month in Santiago Yolomécatl, with an average relative humidity of 81%.

Rainfall

In Santiago Yolomécatl, during September, the rain falls for 26.6 days and regularly aggregates up to 145mm (5.71") of precipitation. In Santiago Yolomécatl, during the entire year, the rain falls for 185.5 days and collects up to 866mm (34.09") of precipitation.

Daylight

In September, the average length of the day in Santiago Yolomécatl, Mexico, is 12h and 14min.
On the first day of the month, sunrise is at 6:16 am and sunset at 6:43 pm. On the last day of September, in Santiago Yolomécatl, sunrise is at 6:20 am and sunset at 6:19 pm CST.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In Santiago Yolomécatl, Mexico, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

What are the temperatures in Santiago Yolomécatl in September?
An average high-temperature, in September, in Santiago Yolomécatl, is 22.3°C (72.1°F) and the average low-temperature is 13.2°C (55.8°F). In April, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 28°C (82.4°F).
What is the most humid month in Santiago Yolomécatl?
The most humid month in Santiago Yolomécatl is September, with an average relative humidity of 81%.
What is the average humidity in September in Santiago Yolomécatl?
In September, the average relative humidity in Santiago Yolomécatl, Mexico, is 81%.
How much does it rain in Santiago Yolomécatl in September?
In Santiago Yolomécatl, Mexico, during September, the rain falls for 26.6 days and regularly aggregates up to 145mm (5.71") of precipitation.
How many hours of daylight does Santiago Yolomécatl have in September?
The average day length in September in Santiago Yolomécatl, Mexico, is 12h and 14min.
What time are sunrise and sunset in September in Santiago Yolomécatl?
On the first day of September in Santiago Yolomécatl, Mexico, sunrise is at 6:16 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 6:19 pm CST.
How many hours of sunshine does Santiago Yolomécatl have in September?
The average sunshine duration in September is 8.9h.
What is the UV index reading in September in Santiago Yolomécatl?
In Santiago Yolomécatl, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Santiago Yolomécatl, Mexico
Average temperature in September
Santiago Yolomécatl, Mexico
  • Average high temperature in September: 22.3°C

The warmest month (with the highest average high temperature) is April (27.3°C).
The month with the lowest average high temperature is January (21.1°C).

  • Average low temperature in September: 13.2°C

The month with the highest average low temperature is May (14.5°C).
The coldest month (with the lowest average low temperature) is January (8.8°C).

Average pressure in September - Santiago Yolomécatl, Mexico
Average pressure in September
Santiago Yolomécatl, Mexico
  • Average pressure in September: 1014.8mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.8mbar).

Average wind speed in September - Santiago Yolomécatl, Mexico
Average wind speed in September
Santiago Yolomécatl, Mexico
  • Average wind speed in September: 6.7km/h

The windiest month (with the highest average wind speed) is January (8.7km/h).
The calmest months (with the lowest average wind speed) are June and September (6.7km/h).

Average humidity in September - Santiago Yolomécatl, Mexico
Average humidity in September
Santiago Yolomécatl, Mexico
  • Average humidity in September: 81%

The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is April (56%).

Average rainfall in September - Santiago Yolomécatl, Mexico
Average rainfall in September
Santiago Yolomécatl, Mexico
  • Average rainfall in September: 145mm

The wettest month (with the highest rainfall) is June (164mm).
The driest month (with the least rainfall) is December (3mm).

Average rainfall days in September - Santiago Yolomécatl, Mexico
Average rainfall days in September
Santiago Yolomécatl, Mexico
  • Average rainfall days in September: 26.6 days

The month with the highest number of rainy days is September (26.6 days).
The month with the least rainy days is December (4.5 days).

Average daylight in September / Average sunshine in September - Santiago Yolomécatl, Mexico
Average daylight in September /
Average sunshine in September
Santiago Yolomécatl, Mexico
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).

Average sunshine days in September - Santiago Yolomécatl, Mexico
Average sunshine days in September
Santiago Yolomécatl, Mexico
  • Average sunshine days in September: 2 days

The month with the most sunshine days is December (22.2 days).
The months with the least sunshine days are August and September (2 days).

Average UV index in September - Santiago Yolomécatl, Mexico
Average UV index in September
Santiago Yolomécatl, Mexico
  • Average UV index in September: 5

The month with the highest UV index is April (UV index 6).
The months with the lowest UV index are January, June, October, November and December (UV index 4).

Average cloud cover in September - Santiago Yolomécatl, Mexico
Average cloud cover in September
Santiago Yolomécatl, Mexico
  • Average cloud cover in September: 42

The month with the most cloud cover is September (Cloud cover 42).
The months with the least cloud cover are February, March and April (Cloud cover 15).

Average visibility in September - Santiago Yolomécatl, Mexico
Average visibility in September
Santiago Yolomécatl, Mexico
  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, May, November and December (10km).
The month with the lowest visibility is September (8km).

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