September weather forecast
San Miguel de Allende, Mexico

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Weather in September

September, the first month of the autumn in San Miguel de Allende, is also an agreeable month, with an average temperature ranging between max 22.6°C (72.7°F) and min 12.9°C (55.2°F).

Temperature

The average high-temperature in September, at an agreeable 22.6°C (72.7°F), reveals a modest deviation from August's 23.8°C (74.8°F). San Miguel de Allende temperatures generally rest at a low of 12.9°C (55.2°F) during the September nights.

Humidity

September is the most humid month in San Miguel de Allende, with an average relative humidity of 78%.

Rainfall

In San Miguel de Allende, in September, it is raining for 19.2 days, with typically 78mm (3.07") of accumulated precipitation. In San Miguel de Allende, during the entire year, the rain falls for 137.5 days and collects up to 513mm (20.2") of precipitation.

Daylight

In San Miguel de Allende, the average length of the day in September is 12h and 15min.
On the first day of September, sunrise is at 6:26 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 6:31 pm CST.

Sunshine

The months with the least sunshine in San Miguel de Allende, Mexico, are July and September, with an average of 9.1h of sunshine.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, a daily UV index of 5 turns into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the usual temperature for San Miguel de Allende in September?

The average high-temperature and low-temperature in San Miguel de Allende, Mexico, during September are 22.6°C (72.7°F) and 12.9°C (55.2°F) respectively. In May, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 28°C (82.4°F).

What is the most humid month in San Miguel de Allende?

With an average relative humidity of 78%, September is the most humid month in San Miguel de Allende, Mexico.

What is the average humidity in September in San Miguel de Allende?

The average relative humidity in September in San Miguel de Allende, Mexico, is 78%.

How many days does it rain in September in San Miguel de Allende?

In San Miguel de Allende, in September, during 19.2 rainfall days, 78mm (3.07") of precipitation is typically accumulated.

What is the average length of the day in September in San Miguel de Allende?

The average day length in September in San Miguel de Allende, Mexico, is 12h and 15min.

When are sunrise and sunset in September in San Miguel de Allende?

On the first day of September in San Miguel de Allende, sunrise is at 6:26 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 6:31 pm CST.

What is the month with the least sunshine in San Miguel de Allende?

The months with the least sunshine in San Miguel de Allende are July and September, with an average of 9.1h of sunshine.

How long on average sun shines in September in San Miguel de Allende?

The average sunshine duration in September in San Miguel de Allende is 9.1h.

What is the UV index intensity in September in San Miguel de Allende?

In September, the average daily maximum UV index in San Miguel de Allende is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.

Average temperature in September
San Miguel de Allende, Mexico

Average temperature in September - San Miguel de Allende, Mexico
  • Average high temperature in September: 22.6°C

The warmest month (with the highest average high temperature) is May (27.5°C).
The month with the lowest average high temperature is January (19.5°C).

  • Average low temperature in September: 12.9°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 (6.9°C).

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Average pressure in September
San Miguel de Allende, Mexico

Average pressure in September - San Miguel de Allende, Mexico
  • Average pressure in September: 1015.7mbar

The month with the highest atmospheric pressure is January (1018.6mbar).
The month with the lowest atmospheric pressure is May (1013.7mbar).

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Average wind speed in September
San Miguel de Allende, Mexico

Average wind speed in September - San Miguel de Allende, Mexico
  • Average wind speed in September: 9.6km/h

The windiest month (with the highest average wind speed) is April (10.6km/h).
The calmest month (with the lowest average wind speed) is December (9km/h).

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Average humidity in September
San Miguel de Allende, Mexico

Average humidity in September - San Miguel de Allende, Mexico
  • Average humidity in September: 78%

The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is April (40%).

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Average rainfall in September
San Miguel de Allende, Mexico

Average rainfall in September - San Miguel de Allende, Mexico
  • Average rainfall in September: 78mm

The wettest month (with the highest rainfall) is July (102mm).
The driest month (with the least rainfall) is January (6mm).

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Average rainfall days in September
San Miguel de Allende, Mexico

Average rainfall days in September - San Miguel de Allende, Mexico
  • Average rainfall days in September: 19.2 days

The month with the highest number of rainy days is July (22.4 days).
The month with the least rainy days is December (3 days).

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Average daylight in September /
Average sunshine in September
San Miguel de Allende, Mexico

Average daylight in September / Average sunshine in September - San Miguel de Allende, Mexico
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in September: 9h and 1min

The months with the most sunshine are March, May and December (Average sunshine: 9h and 48min).
The months with the least sunshine are July and September (Average sunshine: 9h and 6min).

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Average sunshine days in September
San Miguel de Allende, Mexico

Average sunshine days in September - San Miguel de Allende, Mexico
  • Average sunshine days in September: 6.5 days

The month with the most sunshine days is December (26.4 days).
The month with the least sunshine days is July (4.8 days).

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Average UV index in September
San Miguel de Allende, Mexico

Average UV index in September - San Miguel de Allende, 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, November and December (UV index 4).

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Average cloud cover in September
San Miguel de Allende, Mexico

Average cloud cover in September - San Miguel de Allende, 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 March and April (Cloud cover 13).

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Average visibility in September
San Miguel de Allende, Mexico

Average visibility in September - San Miguel de Allende, Mexico
  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, May, June and December (10km).
The months with the lowest visibility are July, August and September (8km).

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San Miguel de Allende, Mexico

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