September weather forecast
San Lorenzo Coacalco, Mexico

September

Weather in September

The first month of the autumn, September, is still a comfortable month in San Lorenzo Coacalco, Mexico, with an average temperature varying between 9.7°C (49.5°F) and 18.2°C (64.8°F).

Temperature

September brings a marginal elevation to a still comfortable 18.2°C (64.8°F) from August's 18.8°C (65.8°F) in San Lorenzo Coacalco's average high-temperatures. In San Lorenzo Coacalco, in September, the average low-temperature is a frosty 9.7°C (49.5°F).

Humidity

The most humid month is September, with an average relative humidity of 86%.

Rainfall

In San Lorenzo Coacalco, in September, it is raining for 28 days, with typically 224mm (8.82") of accumulated precipitation. Throughout the year, there are 211.5 rainfall days, and 1407mm (55.39") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of September in San Lorenzo Coacalco, sunrise is at 6:23 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 6:27 pm CST.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The months with the lowest UV index in San Lorenzo Coacalco are September and October, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a daily UV index of 3 turns into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

What is the average September temperature in San Lorenzo Coacalco?
In September, the average high-temperature and low-temperature in San Lorenzo Coacalco, Mexico, are 18.2°C (64.8°F) and 9.7°C (49.5°F) respectively.
What is the most humid month in San Lorenzo Coacalco?
The most humid month in San Lorenzo Coacalco, Mexico, is September, with an average relative humidity of 86%.
What is the average humidity in September in San Lorenzo Coacalco?
In San Lorenzo Coacalco, Mexico, the average relative humidity in September is 86%.
How many days does it rain in September in San Lorenzo Coacalco?
In San Lorenzo Coacalco, Mexico, in September, during 28 rainfall days, 224mm (8.82") of precipitation is typically accumulated.
What is the average length of the day in September in San Lorenzo Coacalco?
In San Lorenzo Coacalco, Mexico, the average day length in September is 12h and 14min.
When are sunrise and sunset in September in San Lorenzo Coacalco?
In September, on the first day of the month, sunrise is at 6:23 am and sunset at 6:52 pm. On the last day of the month, in San Lorenzo Coacalco, sunrise is at 6:28 am and sunset at 6:27 pm CST.
How many hours of sunshine does San Lorenzo Coacalco have in September?
In September, the average sunshine duration in San Lorenzo Coacalco, Mexico, is 8.3h.
What is the month with the lowest UV index in San Lorenzo Coacalco?
September and October, with an average maximum UV index of 3, are months with the lowest UV index.
How high is the UV index in September in San Lorenzo Coacalco?
In San Lorenzo Coacalco, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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 - San Lorenzo Coacalco, Mexico
Average temperature in September
San Lorenzo Coacalco, Mexico
  • Average high temperature in September: 18.2°C

The warmest month (with the highest average high temperature) is April (22.8°C).
The month with the lowest average high temperature is January (17.2°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is May (10.8°C).
The coldest month (with the lowest average low temperature) is January (4.9°C).

Average pressure in September - San Lorenzo Coacalco, Mexico
Average pressure in September
San Lorenzo Coacalco, Mexico
  • Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is May (1013.7mbar).

Average wind speed in September - San Lorenzo Coacalco, Mexico
Average wind speed in September
San Lorenzo Coacalco, Mexico
  • Average wind speed in September: 5.1km/h

The windiest months (with the highest average wind speed) are March and April (6.8km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).

Average humidity in September - San Lorenzo Coacalco, Mexico
Average humidity in September
San Lorenzo Coacalco, Mexico
  • Average humidity in September: 86%

The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is April (47%).

Average rainfall in September - San Lorenzo Coacalco, Mexico
Average rainfall in September
San Lorenzo Coacalco, Mexico
  • Average rainfall in September: 224mm

The wettest month (with the highest rainfall) is July (301mm).
The driest month (with the least rainfall) is December (8mm).

Average rainfall days in September - San Lorenzo Coacalco, Mexico
Average rainfall days in September
San Lorenzo Coacalco, Mexico
  • Average rainfall days in September: 28 days

The month with the highest number of rainy days is August (30.8 days).
The month with the least rainy days is January (5.8 days).

Average daylight in September / Average sunshine in September - San Lorenzo Coacalco, Mexico
Average daylight in September /
Average sunshine in September
San Lorenzo Coacalco, Mexico
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is March (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 8h and 6min).

Average sunshine days in September - San Lorenzo Coacalco, Mexico
Average sunshine days in September
San Lorenzo Coacalco, Mexico
  • Average sunshine days in September: 1.1 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (0.1 days).

Average UV index in September - San Lorenzo Coacalco, Mexico
Average UV index in September
San Lorenzo Coacalco, Mexico
  • Average UV index in September: 3

The months with the highest UV index are March and April (UV index 5).
The months with the lowest UV index are September and October (UV index 3).

Average cloud cover in September - San Lorenzo Coacalco, Mexico
Average cloud cover in September
San Lorenzo Coacalco, Mexico
  • Average cloud cover in September: 46

The month with the most cloud cover is September (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 12).

Average visibility in September - San Lorenzo Coacalco, Mexico
Average visibility in September
San Lorenzo Coacalco, Mexico
  • Average visibility in September: 7km

The months with the highest visibility are January, February, March, April, May and December (10km).
The month with the lowest visibility is September (7km).

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