September weather forecastCalnali, Mexico
September
Weather in September
The first month of the autumn, September, is still a warm month in Calnali, Mexico, with an average temperature fluctuating between 28.4°C (83.1°F) and 18.5°C (65.3°F).Temperature
The transition into September shows a subtle variation to a moderately hot 28.4°C (83.1°F) from August's 30.3°C (86.5°F) in the average high-temperature. An average temperature of 18.5°C (65.3°F) is recorded in Calnali during the nights in September.Heat index
In September, the heat index is estimated at a tropical 34°C (93.2°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. 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.
Humidity
September is the most humid month, with an average relative humidity of 83%.Rainfall
The month with the most rainfall is September, when the rain falls for 22.5 days and typically aggregates up to 98mm (3.86") of precipitation.Daylight
The average length of the day in September in Calnali is 12h and 15min.On the first day of September, sunrise is at 6:18 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 6:22 pm CST.
Sunshine
In Calnali, the average sunshine in September is 8h.UV index
The months with the highest UV index in Calnali are March through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calnali, 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
Calnali, 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
Calnali, 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
Calnali, 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
Calnali, 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
Calnali, 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
Calnali, 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
Calnali, 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
Calnali, 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
Calnali, 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
Calnali, 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).
