Ciudad Constitución
Mexico
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Ciudad Constitución, Mexico

The first month of the autumn, September, is still a torrid month in Ciudad Constitución, Mexico, with average temperature fluctuating between 36.3°C (97.3°F) and 21°C (69.8°F).

Temperature

In September, the average high-temperature is almost the same as in August - a still sweltering 36.3°C (97.3°F). In Ciudad Constitución, Mexico, the average low-temperature is 21°C (69.8°F).

Heat index

In September, the average heat index is evaluated at a life-threatening hot 54.7°C (130.5°F). These weather conditions are regarded as very dangerous, as heatstroke is imminent.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, clothing, differences in body mass, height, and shape, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

September is the most humid month in Ciudad Constitución, Mexico, with an average relative humidity of 69%.

Rainfall

In Ciudad Constitución, it is raining for 3.4 days, with typically 30mm (1.2") of accumulated precipitation. In Ciudad Constitución, during the entire year, the rain falls for 15.8 days and collects up to 140.5mm (5.5") of precipitation.

Daylight

The average length of the day in September is 12.3h.

Sunshine

The average sunshine in September in Ciudad Constitución is 9h.

What is the temperature in September in Ciudad Constitución?

The average high-temperature, in September, is 36.3°C (97.3°F), while the average low-temperature is 21°C (69.8°F). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), that combines relative humidity and air temperature, is evaluated at 54.7°C (130.5°F).

What is the most humid month in Ciudad Constitución?

The most humid month is September, with an average relative humidity of 69%.

What is the average humidity in September in Ciudad Constitución?

In September, the average relative humidity in Ciudad Constitución is 69%.

How many days does it rain in September in Ciudad Constitución?

In Ciudad Constitución, in September, it is raining for 3.4 days, with typically 30mm (1.2") of accumulated precipitation.

What is the average length of the day in September in Ciudad Constitución?

In September, the average length of the day in Ciudad Constitución is 12.3h.

How many hours of sunshine does Ciudad Constitución have in September?

In September, the average sunshine in Ciudad Constitución is 9h.
Average temperature in September - Ciudad Constitución, Mexico
  • Average high temperature in September: 36.3°C

The warmest month (with the highest average high temperature) is August (37.8°C).
The month with the lowest average high temperature is January (26.3°C).

  • Average low temperature in September: 21°C

The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is January (8.5°C).

Average humidity in September - Ciudad Constitución, Mexico
  • Average humidity in September: 69%

The month with the highest relative humidity is September (69%).
Months with the lowest relative humidity are July and August (64%).

Average rainfall in September - Ciudad Constitución, Mexico
  • Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is August (32.5mm).
Driest months (with the lowest rainfall) are May and June (0.1mm).

Average rainfall days in September - Ciudad Constitución, Mexico
  • Average rainfall days in September: 3.4 days

The month with the highest number of rainy days is September (3.4 days).
Months with the lowest number of rainy days are May and June (0.1 days).

Average daylight in September / Average sunshine in September - Ciudad Constitución, Mexico
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.6h).

  • Average sunshine in September: 9h

The month with most sunshine is June (Average sunshine: 11h).
The month with least sunshine is December (Average sunshine: 6.8h).