September weather forecastChapulhuacán, Mexico
September
Weather in September
September, the first month of the autumn in Chapulhuacán, is also a moderately hot month, with an average temperature fluctuating between 28.4°C (83.1°F) and 18.5°C (65.3°F).Temperature
Stepping into September, Chapulhuacán records an average high-temperature of a moderately hot 28.4°C (83.1°F), almost consistent with August. Chapulhuacán observes an average low-temperature of 18.5°C (65.3°F) during September nights.Heat index
The average heat index in September is estimated at a tropical 34°C (93.2°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.The metrics for the heat index are tailored for both shady environments and light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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.
Humidity
September is the most humid month, with an average relative humidity of 83%.Rainfall
The month with the most rainfall in Chapulhuacán is September, when the rain falls for 22.5 days and typically aggregates up to 98mm (3.86") of precipitation.Daylight
In Chapulhuacán, the average length of the day in September is 12h and 16min.On the first day of the month, sunrise is at 6:19 am and sunset at 6:51 pm. On the last day of September, sunrise is at 6:26 am and sunset at 6:24 pm CST.
Sunshine
In Chapulhuacán, the average sunshine in September is 8h.UV index
The months with the highest UV index are March through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chapulhuacán, Mexico
- Average high temperature in September: 28.4°C
The warmest month (with the highest average high temperature) is May (32°C).
The month with the lowest average high temperature is January (21.8°C).
- Average low temperature in September: 18.5°C
The month with the highest average low temperature is June (19.3°C).
The coldest month (with the lowest average low temperature) is January (10.9°C).
Average pressure in September
Chapulhuacán, Mexico
- Average pressure in September: 1014.4mbar
The month with the highest atmospheric pressure is January (1019.3mbar).
The month with the lowest atmospheric pressure is May (1013mbar).
Average wind speed in September
Chapulhuacán, Mexico
- Average wind speed in September: 5.2km/h
The windiest month (with the highest average wind speed) is April (6.6km/h).
The calmest month (with the lowest average wind speed) is November (4.8km/h).
Average humidity in September
Chapulhuacán, 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 (67%).
Average rainfall in September
Chapulhuacán, Mexico
- Average rainfall in September: 98mm
The wettest month (with the highest rainfall) is September (98mm).
The driest month (with the least rainfall) is December (20mm).
Average rainfall days in September
Chapulhuacán, Mexico
- Average rainfall days in September: 22.5 days
The month with the highest number of rainy days is September (22.5 days).
The month with the least rainy days is February (10.6 days).
Average daylight in September /
Average sunshine in September
Chapulhuacán, 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: 8h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in September
Chapulhuacán, Mexico
- Average sunshine days in September: 6.5 days
The month with the most sunshine days is January (17 days).
The month with the least sunshine days is September (6.5 days).
Average UV index in September
Chapulhuacán, Mexico
- Average UV index in September: 6
The months with the highest UV index are March, April, May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 5).
Average cloud cover in September
Chapulhuacán, Mexico
- Average cloud cover in September: 47
The month with the most cloud cover is September (Cloud cover 47).
The month with the least cloud cover is April (Cloud cover 30).
Average visibility in September
Chapulhuacán, Mexico
- Average visibility in September: 7km
The month with the highest visibility is April (9km).
The months with the lowest visibility are July and September (7km).
