September weather forecast
San Francisco Huehuetlán, Mexico

September

Weather in September

The first month of the autumn, September, is still a pleasant month in San Francisco Huehuetlán, Mexico, with an average temperature varying between 13.6°C (56.5°F) and 22.5°C (72.5°F).

Temperature

August's transformation into September witnesses an average high-temperature of a pleasant 22.5°C (72.5°F), noting a minor change from the preceding month. September nights in San Francisco Huehuetlán experience a consistent temperature drop to a moderate 13.6°C (56.5°F).

Humidity

September is the most humid month in San Francisco Huehuetlán, with an average relative humidity of 79%.

Rainfall

In September, in San Francisco Huehuetlán, the rain falls for 16.5 days. Throughout September, 69mm (2.72") of precipitation is accumulated. Throughout the year, in San Francisco Huehuetlán, there are 137.8 rainfall days, and 464mm (18.27") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 6:13 am and sunset at 6:41 pm. On the last day of September, in San Francisco Huehuetlán, Mexico, sunrise is at 6:18 am and sunset at 6:16 pm CST.

Sunshine

In September, the average sunshine in San Francisco Huehuetlán is 8.9h.

UV index

In September, the average daily maximum UV index in San Francisco Huehuetlán is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Take precautions - Protection against sunburn is recommended. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

What is the average September temperature in San Francisco Huehuetlán?
In San Francisco Huehuetlán, in September, the average high-temperature is 22.5°C (72.5°F), and the average low-temperature is 13.6°C (56.5°F).
What is the most humid month in San Francisco Huehuetlán?
September is the most humid month in San Francisco Huehuetlán, Mexico, with an average relative humidity of 79%.
What is the average humidity in September in San Francisco Huehuetlán?
In September, the average relative humidity is 79%.
How many days does it rain in September in San Francisco Huehuetlán?
In San Francisco Huehuetlán, in September, during 16.5 rainfall days, 69mm (2.72") of precipitation is typically accumulated.
What is the average length of the day in September in San Francisco Huehuetlán?
The average day length in September in San Francisco Huehuetlán is 12h and 14min.
When are sunrise and sunset in September in San Francisco Huehuetlán?
In September, on the first day of the month, sunrise is at 6:13 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 6:16 pm CST.
How long on average sun shines in September in San Francisco Huehuetlán?
The average sunshine duration in September in San Francisco Huehuetlán is 8.9h.
How high is the UV index in September in San Francisco Huehuetlán?
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 - San Francisco Huehuetlán, Mexico
Average temperature in September
San Francisco Huehuetlán, Mexico
  • Average high temperature in September: 22.5°C

The warmest month (with the highest average high temperature) is April (25.8°C).
The month with the lowest average high temperature is January (19.1°C).

  • Average low temperature in September: 13.6°C

The month with the highest average low temperature is May (15.1°C).
The coldest month (with the lowest average low temperature) is January (8.8°C).

Average pressure in September - San Francisco Huehuetlán, Mexico
Average pressure in September
San Francisco Huehuetlán, Mexico
  • Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is January (1018.9mbar).
The month with the lowest atmospheric pressure is May (1014.1mbar).

Average wind speed in September - San Francisco Huehuetlán, Mexico
Average wind speed in September
San Francisco Huehuetlán, Mexico
  • Average wind speed in September: 8.6km/h

The windiest month (with the highest average wind speed) is March (10.8km/h).
The calmest month (with the lowest average wind speed) is September (8.6km/h).

Average humidity in September - San Francisco Huehuetlán, Mexico
Average humidity in September
San Francisco Huehuetlán, Mexico
  • Average humidity in September: 79%

The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is April (60%).

Average rainfall in September - San Francisco Huehuetlán, Mexico
Average rainfall in September
San Francisco Huehuetlán, Mexico
  • Average rainfall in September: 69mm

The wettest month (with the highest rainfall) is June (122mm).
The driest month (with the least rainfall) is December (3mm).

Average rainfall days in September - San Francisco Huehuetlán, Mexico
Average rainfall days in September
San Francisco Huehuetlán, Mexico
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is June (20.9 days).
The month with the least rainy days is December (4.3 days).

Average daylight in September / Average sunshine in September - San Francisco Huehuetlán, Mexico
Average daylight in September /
Average sunshine in September
San Francisco Huehuetlán, 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: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).

Average sunshine days in September - San Francisco Huehuetlán, Mexico
Average sunshine days in September
San Francisco Huehuetlán, Mexico
  • Average sunshine days in September: 11.7 days

The month with the most sunshine days is December (24.4 days).
The month with the least sunshine days is June (7.9 days).

Average UV index in September - San Francisco Huehuetlán, Mexico
Average UV index in September
San Francisco Huehuetlán, 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, October and December (UV index 4).

Average cloud cover in September - San Francisco Huehuetlán, Mexico
Average cloud cover in September
San Francisco Huehuetlán, Mexico
  • Average cloud cover in September: 41

The month with the most cloud cover is September (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 18).

Average visibility in September - San Francisco Huehuetlán, Mexico
Average visibility in September
San Francisco Huehuetlán, Mexico
  • Average visibility in September: 9km

The months with the highest visibility are February, March, April, May and December (10km).
The months with the lowest visibility are January, June, July, August, September, October and November (9km).

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