September weather forecastCumpas, Mexico
September
Weather in September
September, the first month of the autumn in Cumpas, is also a moderately hot month, with temperature in the range of an average high of 29.9°C (85.8°F) and an average low of 19.1°C (66.4°F).Temperature
The weather during September records an average high-temperature of a warm 29.9°C (85.8°F), closely mirroring the preceding month. Cumpas records an average low of 19.1°C (66.4°F) throughout the nights in September.Heat index
Throughout September, the heat index is appraised at a tropical 32°C (89.6°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
In Cumpas, the average relative humidity in September is 54%.Rainfall
In Cumpas, in September, during 13.9 rainfall days, 59mm (2.32") of precipitation is typically accumulated. In Cumpas, during the entire year, the rain falls for 97.9 days and collects up to 457mm (17.99") of precipitation.Snowfall
In Cumpas, Mexico, snow does not fall in February, April through December.Daylight
In Cumpas, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 5:56 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 6:05 pm MST.
Sunshine
The average sunshine in September is 10.1h.UV index
In Cumpas, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cumpas, Mexico
- Average high temperature in September: 29.9°C
The warmest month (with the highest average high temperature) is June (34.3°C).
The month with the lowest average high temperature is December (15.8°C).
- Average low temperature in September: 19.1°C
The month with the highest average low temperature is July (22.1°C).
The coldest month (with the lowest average low temperature) is December (5.5°C).
Average pressure in September
Cumpas, Mexico
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is January (1018.1mbar).
The month with the lowest atmospheric pressure is June (1011.1mbar).
Average wind speed in September
Cumpas, Mexico
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is May (14km/h).
The calmest month (with the lowest average wind speed) is August (7km/h).
Average humidity in September
Cumpas, Mexico
- Average humidity in September: 54%
The month with the highest relative humidity is August (56%).
The month with the lowest relative humidity is May (24%).
Average rainfall in September
Cumpas, Mexico
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is July (132mm).
The driest month (with the least rainfall) is May (4mm).
Average rainfall days in September
Cumpas, Mexico
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is May (1.8 days).
Average snowfall in September
Cumpas, Mexico
- Average snowfall in September: 0mm
The month with the highest snowfall is March (6mm).
The months with the least snowfall are February, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Cumpas, Mexico
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (0.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Cumpas, Mexico
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 10h and 6min
The months with the most sunshine are May and June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Cumpas, Mexico
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (4.7 days).
Average UV index in September
Cumpas, Mexico
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Cumpas, Mexico
- Average cloud cover in September: 17
The month with the most cloud cover is July (Cloud cover 26).
The month with the least cloud cover is May (Cloud cover 6).
Average visibility in September
Cumpas, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





