September weather forecast
San Juan Cosalá, Mexico

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Weather in September

September, the first month of the autumn in San Juan Cosalá, is still a warm month, with temperature in the range of an average low of 14.4°C (57.9°F) and an average high of 25.1°C (77.2°F).

Temperature

Transitioning from August to September, San Juan Cosalá observes an average high-temperature of a still moderately hot 25.1°C (77.2°F), differing subtly from the previous month. San Juan Cosalá's temperature lowers to a mean of 14.4°C (57.9°F) during the nights in September.

Humidity

With an average relative humidity of 83%, September is the most humid month.

Rainfall

In September, in San Juan Cosalá, the rain falls for 22.7 days. Throughout September, 113mm (4.45") of precipitation is accumulated. Throughout the year, in San Juan Cosalá, there are 136.3 rainfall days, and 630mm (24.8") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 15min.
On the first day of September in San Juan Cosalá, sunrise is at 6:37 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:41 pm CST.

Sunshine

The average sunshine in September in San Juan Cosalá is 9h.

UV index

The months with the lowest UV index are January, February, August through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

What is the temperature in September in San Juan Cosalá?

The high-temperature, in September, in San Juan Cosalá, records 25.1°C (77.2°F), while the low-temperature is 14.4°C (57.9°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in June is estimated at 33°C (91.4°F).

What is the most humid month in San Juan Cosalá?

With an average relative humidity of 83%, September is the most humid month in San Juan Cosalá.

What is the average humidity in September in San Juan Cosalá?

The average relative humidity in September is 83%.

How many days does it rain in September in San Juan Cosalá?

In San Juan Cosalá, in September, during 22.7 rainfall days, 113mm (4.45") of precipitation is typically accumulated.

What is the average length of the day in September in San Juan Cosalá?

In September, the average day length in San Juan Cosalá is 12h and 15min.

What time are sunrise and sunset in September in San Juan Cosalá?

On the first day of September, sunrise is at 6:37 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:41 pm CST.

How long on average sun shines in September in San Juan Cosalá?

In September, the average sunshine duration in San Juan Cosalá, Mexico, is 9h.

What are the months with the lowest UV index in San Juan Cosalá?

January, February, August through December, with an average maximum UV index of 5, are months with the lowest UV index in San Juan Cosalá, Mexico.

What is the UV index reading in September in San Juan Cosalá?

In San Juan Cosalá, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
San Juan Cosalá, Mexico

Average temperature in September - San Juan Cosalá, Mexico
  • Average high temperature in September: 25.1°C

The warmest month (with the highest average high temperature) is May (32.3°C).
The month with the lowest average high temperature is January (23.4°C).

  • Average low temperature in September: 14.4°C

The month with the highest average low temperature is June (17.8°C).
The coldest month (with the lowest average low temperature) is January (9.3°C).

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Average pressure in September
San Juan Cosalá, Mexico

Average pressure in September - San Juan Cosalá, Mexico
  • Average pressure in September: 1013.6mbar

The month with the highest atmospheric pressure is January (1016.6mbar).
The month with the lowest atmospheric pressure is May (1012.5mbar).

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Average wind speed in September
San Juan Cosalá, Mexico

Average wind speed in September - San Juan Cosalá, Mexico
  • Average wind speed in September: 5.3km/h

The windiest month (with the highest average wind speed) is April (8.1km/h).
The calmest month (with the lowest average wind speed) is July (4.8km/h).

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Average humidity in September
San Juan Cosalá, Mexico

Average humidity in September - San Juan Cosalá, Mexico
  • Average humidity in September: 83%

The month with the highest relative humidity is September (83%).
The month with the lowest relative humidity is April (36%).

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Average rainfall in September
San Juan Cosalá, Mexico

Average rainfall in September - San Juan Cosalá, Mexico
  • Average rainfall in September: 113mm

The wettest month (with the highest rainfall) is July (169mm).
The driest month (with the least rainfall) is April (1mm).

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Average rainfall days in September
San Juan Cosalá, Mexico

Average rainfall days in September - San Juan Cosalá, Mexico
  • Average rainfall days in September: 22.7 days

The month with the highest number of rainy days is July (26.9 days).
The month with the least rainy days is April (1.8 days).

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Average daylight in September /
Average sunshine in September
San Juan Cosalá, Mexico

Average daylight in September / Average sunshine in September - San Juan Cosalá, 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: 10h and 54min).

  • Average sunshine in September: 9h and 0min

The months with the most sunshine are January, May and December (Average sunshine: 9h and 48min).
The month with the least sunshine is July (Average sunshine: 8h and 42min).

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Average sunshine days in September
San Juan Cosalá, Mexico

Average sunshine days in September - San Juan Cosalá, Mexico
  • Average sunshine days in September: 6.1 days

The month with the most sunshine days is April (27.8 days).
The month with the least sunshine days is July (2.5 days).

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Average UV index in September
San Juan Cosalá, Mexico

Average UV index in September - San Juan Cosalá, Mexico
  • Average UV index in September: 5

The month with the highest UV index is May (UV index 7).
The months with the lowest UV index are January, February, August, September, October, November and December (UV index 5).

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Average cloud cover in September
San Juan Cosalá, Mexico

Average cloud cover in September - San Juan Cosalá, Mexico
  • Average cloud cover in September: 44

The months with the most cloud cover are July and September (Cloud cover 44).
The months with the least cloud cover are March and April (Cloud cover 9).

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Average visibility in September
San Juan Cosalá, Mexico

Average visibility in September - San Juan Cosalá, Mexico
  • Average visibility in September: 7km

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

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San Juan Cosalá, Mexico

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