September weather forecastMetlaltoyuca, Mexico

September

Weather in September

September, the first month of the autumn in Metlaltoyuca, is still a hot month, with an average temperature ranging between max 31.3°C (88.3°F) and min 21.5°C (70.7°F).

Temperature

The advent of September signifies a minor shift to an average high-temperature of a still tropical 31.3°C (88.3°F), aligning closely with August. In Metlaltoyuca, the expected average low-temperature for September is a pleasant 21.5°C (70.7°F).

Heat index

September's heat index is calculated to be a blisteringly hot 43°C (109.4°F). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in September is 82%.

Rainfall

In September, in Metlaltoyuca, the rain falls for 22.4 days. Throughout September, 124mm (4.88") of precipitation is accumulated. In Metlaltoyuca, during the entire year, the rain falls for 189.3 days and collects up to 928mm (36.54") of precipitation.

Daylight

In September, the average length of the day is 12h and 15min.
On the first day of the month, sunrise is at 6:15 am and sunset at 6:46 pm. On the last day of September, in Metlaltoyuca, sunrise is at 6:22 am and sunset at 6:19 pm CST.

Sunshine

The average sunshine in September is 7.9h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Deflect overexposure. Sun protection is a necessity. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

During September, Metlaltoyuca experiences an average high-temperature of 31.3°C (88.3°F) and a low-temperature of 21.5°C (70.7°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 43°C (109.4°F).

In September, the average relative humidity in Metlaltoyuca is 82%.

In Metlaltoyuca, during September, the rain falls for 22.4 days and regularly aggregates up to 124mm (4.88") of precipitation.

In September, the average day length is 12h and 15min.

In September, on the first day of the month, sunrise is at 6:15 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 6:19 pm CST.

In Metlaltoyuca, the average sunshine duration in September is 7.9h.

In Metlaltoyuca, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Metlaltoyuca, Mexico

  • Average high temperature in September: 31.3°C

The warmest month (with the highest average high temperature) is May (33.3°C).
The month with the lowest average high temperature is January (23.2°C).

  • Average low temperature in September: 21.5°C

The month with the highest average low temperature is June (22.1°C).
The coldest month (with the lowest average low temperature) is January (14.1°C).

Average pressure in September
Metlaltoyuca, Mexico

  • Average pressure in September: 1013.6mbar

The month with the highest atmospheric pressure is January (1019mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).

Average wind speed in September
Metlaltoyuca, Mexico

  • Average wind speed in September: 5.9km/h

The windiest months (with the highest average wind speed) are April and May (6.7km/h).
The calmest month (with the lowest average wind speed) is December (5.5km/h).

Average humidity in September
Metlaltoyuca, Mexico

  • Average humidity in September: 82%

The month with the highest relative humidity is December (85%).
The months with the lowest relative humidity are April and May (75%).

Average rainfall in September
Metlaltoyuca, Mexico

  • Average rainfall in September: 124mm

The wettest month (with the highest rainfall) is October (167mm).
The driest month (with the least rainfall) is December (27mm).

Average rainfall days in September
Metlaltoyuca, Mexico

  • Average rainfall days in September: 22.4 days

The month with the highest number of rainy days is September (22.4 days).
The month with the least rainy days is April (10.5 days).

Average daylight in September /
Average sunshine in September
Metlaltoyuca, Mexico

  • Average daylight in September: 12h and 18min

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: 7h and 54min

The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is November (Average sunshine: 4h and 54min).

Average sunshine days in September
Metlaltoyuca, Mexico

  • Average sunshine days in September: 6 days

The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is September (6 days).

Average UV index in September
Metlaltoyuca, Mexico

  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

Average cloud cover in September
Metlaltoyuca, Mexico

  • Average cloud cover in September: 47

The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in September
Metlaltoyuca, Mexico

  • Average visibility in September: 8km

The months with the highest visibility are April, May, June, July, August and September (8km).
The month with the lowest visibility is December (6km).