September weather forecast
San Juan Ñumí, Mexico

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Weather in September

The first month of the autumn, September, is still a pleasant month in San Juan Ñumí, Mexico, with an average temperature ranging between min 55.8°F (13.2°C) and max 72.1°F (22.3°C).

Temperature

September's arrival registers an average high-temperature of a pleasant 72.1°F (22.3°C), closely aligning with the temperature of the previous month. San Juan Ñumí throughout September, records an average low-temperature of 55.8°F (13.2°C).

Humidity

The most humid month is September, with an average relative humidity of 81%.

Rainfall

In San Juan Ñumí, in September, during 26.6 rainfall days, 5.71" (145mm) of precipitation is typically accumulated. Throughout the year, there are 185.5 rainfall days, and 34.09" (866mm) of precipitation is accumulated.

Daylight

In September, the average length of the day in San Juan Ñumí is 12h and 14min.
On the first day of the month, sunrise is at 6:17 am and sunset at 6:44 pm. On the last day of September, sunrise is at 6:21 am and sunset at 6:20 pm CST.

Sunshine

In September, the average sunshine in San Juan Ñumí is 8.9h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Feb 9, 2024 | Published by: Weather Atlas | About Us

Frequently asked questions

What is the average September temperature in San Juan Ñumí?

The high-temperature, in September, in San Juan Ñumí, records 72.1°F (22.3°C), while the low-temperature is 55.8°F (13.2°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in April is computed to be 82.4°F (28°C).

What is the most humid month in San Juan Ñumí?

September is the most humid month in San Juan Ñumí, Mexico, with an average relative humidity of 81%.

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

In San Juan Ñumí, the average relative humidity in September is 81%.

How much does it rain in San Juan Ñumí in September?

In San Juan Ñumí, Mexico, in September, during 26.6 rainfall days, 5.71" (145mm) of precipitation is typically accumulated.

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

The average day length in September in San Juan Ñumí is 12h and 14min.

When is the sunrise / sunset in September in San Juan Ñumí?

On the first day of September in San Juan Ñumí, sunrise is at 6:17 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 6:20 pm CST.

How many hours of sunshine does San Juan Ñumí have in September?

The average sunshine duration in September in San Juan Ñumí, Mexico, is 8.9h.

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

In San Juan Ñumí, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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 Ñumí, Mexico

Average temperature in September - San Juan Ñumí, Mexico
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is April (81.1°F).
The month with the lowest average high temperature is January (70°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is May (58.1°F).
The coldest month (with the lowest average low temperature) is January (47.8°F).

Average pressure in September
San Juan Ñumí, Mexico

Average pressure in September - San Juan Ñumí, Mexico
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.05"Hg).
The month with the lowest atmospheric pressure is May (29.94"Hg).

Average wind speed in September
San Juan Ñumí, Mexico

Average wind speed in September - San Juan Ñumí, Mexico
  • Average wind speed in September: 4.2mph

The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest months (with the lowest average wind speed) are June and September (4.2mph).

Average humidity in September
San Juan Ñumí, Mexico

Average humidity in September - San Juan Ñumí, 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
San Juan Ñumí, Mexico

Average rainfall in September - San Juan Ñumí, Mexico
  • Average rainfall in September: 5.71"

The wettest month (with the highest rainfall) is June (6.46").
The driest month (with the least rainfall) is December (0.12").

Average rainfall days in September
San Juan Ñumí, Mexico

Average rainfall days in September - San Juan Ñumí, 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
San Juan Ñumí, Mexico

Average daylight in September / Average sunshine in September - San Juan Ñumí, 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
San Juan Ñumí, Mexico

Average sunshine days in September - San Juan Ñumí, 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
San Juan Ñumí, Mexico

Average UV index in September - San Juan Ñumí, 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
San Juan Ñumí, Mexico

Average cloud cover in September - San Juan Ñumí, 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
San Juan Ñumí, Mexico

Average visibility in September - San Juan Ñumí, Mexico
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).

San Juan Ñumí, Mexico

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