September weather forecastChumayel, Mexico

September

Weather in September

The first month of the autumn, September, is still a tropical month in Chumayel, Mexico, with an average temperature varying between 23.3°C (73.9°F) and 33.6°C (92.5°F).

Temperature

Chumayel's shift into September is marked by a subtle change to a hot 33.6°C (92.5°F) from August's 35°C (95°F) in temperature. Throughout September, an average nighttime temperature of 23.3°C (73.9°F) is experienced in Chumayel.

Heat index

The heat index in September is appraised at a blazing hot 49°C (120.2°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
Note that heat index values are valued for light wind and location in the shade. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
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, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The months with the highest humidity are September and October, with an average relative humidity of 78%.

Rainfall

In Chumayel, in September, it is raining for 20.4 days, with typically 70mm (2.76") of accumulated precipitation. Throughout the year, in Chumayel, there are 167.3 rainfall days, and 536mm (21.1") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 15min.
On the first day of September in Chumayel, sunrise is at 5:41 am and sunset at 6:12 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 5:45 pm CST.

Sunshine

The average sunshine in September is 9.4h.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Chumayel, Mexico, during September are 33.6°C (92.5°F) and 23.3°C (73.9°F) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 49°C (120.2°F).

September and October, with an average relative humidity of 78%, are most humid months in Chumayel, Mexico.

In Chumayel, Mexico, the average relative humidity in September is 78%.

In Chumayel, Mexico, in September, during 20.4 rainfall days, 70mm (2.76") of precipitation is typically accumulated.

The average day length in September in Chumayel, Mexico, is 12h and 15min.

In September, on the first day of the month, sunrise is at 5:41 am and sunset at 6:12 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 5:45 pm CST.

In September, the average sunshine duration in Chumayel, Mexico, is 9.4h.

February through October, with an average maximum UV index of 7, are months with the highest UV index.

In September, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

35°C

33.6°C

31.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.6km/h

11.2km/h

12.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

12.2

8.8

8.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Chumayel, Mexico

Average high temperature in September: 33.6°C

The warmest month (with the highest average high temperature) is May (35.4°C).
The month with the lowest average high temperature is January (28.1°C).

Average low temperature in September: 23.3°C

The month with the highest average low temperature is June (24.3°C).
The coldest month (with the lowest average low temperature) is January (18.6°C).

Average pressure in September
Chumayel, Mexico

Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is January (1017.6mbar).
The month with the lowest atmospheric pressure is September (1011.9mbar).

Average wind speed in September
Chumayel, Mexico

Average wind speed in September: 10.6km/h

The windiest month (with the highest average wind speed) is March (16.1km/h).
The calmest month (with the lowest average wind speed) is September (10.6km/h).

Average humidity in September
Chumayel, Mexico

Average humidity in September: 78%

The months with the highest relative humidity are September and October (78%).
The months with the lowest relative humidity are April and May (63%).

Average rainfall in September
Chumayel, Mexico

Average rainfall in September: 70mm

The wettest month (with the highest rainfall) is June (99mm).
The driest months (with the least rainfall) are February and March (12mm).

Average rainfall days in September
Chumayel, Mexico

Average rainfall days in September: 20.4 days

The month with the highest number of rainy days is September (20.4 days).
The months with the least rainy days are February and March (7.2 days).

Average daylight in September /
Average sunshine in September
Chumayel, 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: 9h and 24min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).

Average sunshine days in September
Chumayel, Mexico

Average sunshine days in September: 8.8 days

The month with the most sunshine days is March (21.8 days).
The month with the least sunshine days is October (8.5 days).

Average UV index in September
Chumayel, Mexico

Average UV index in September: 7

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).