September weather forecastGuamúchil, Mexico
September
Weather in September
September, the first month of the autumn in Guamúchil, is still a tropical month, with an average temperature fluctuating between 34.8°C (94.6°F) and 24.4°C (75.9°F).Temperature
In September, Guamúchil experiences a minor shift in meteorological conditions with average high-temperatures marked at a hot 34.8°C (94.6°F), closely mirroring the climate in August. Guamúchil's temperature lowers to a mean of 24.4°C (75.9°F) during the nights in September.Heat index
During September, the heat index is evaluated at a blazing hot 50°C (122°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 71%.Rainfall
In September, the rain falls for 16.1 days. Throughout September, 81mm (3.19") of precipitation is accumulated. In Guamúchil, during the entire year, the rain falls for 85.6 days and collects up to 334mm (13.15") of precipitation.Daylight
In September, the average length of the day in Guamúchil is 12h and 17min.On the first day of the month, sunrise is at 5:53 am and sunset at 6:30 pm. On the last day of September, in Guamúchil, sunrise is at 6:04 am and sunset at 5:59 pm MST.
Sunshine
In September, the average sunshine is 10h.UV index
In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 7 during September leads to these advisories:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Guamúchil, Mexico
- Average high temperature in September: 34.8°C
The warmest month (with the highest average high temperature) is June (36.2°C).
The month with the lowest average high temperature is December (27.9°C).
- Average low temperature in September: 24.4°C
The month with the highest average low temperature is July (26.2°C).
The coldest month (with the lowest average low temperature) is January (14.3°C).
Average pressure in September
Guamúchil, Mexico
- Average pressure in September: 1011.2mbar
The month with the highest atmospheric pressure is January (1016mbar).
The month with the lowest atmospheric pressure is June (1011.1mbar).
Average wind speed in September
Guamúchil, Mexico
- Average wind speed in September: 8km/h
The windiest month (with the highest average wind speed) is June (11.2km/h).
The calmest months (with the lowest average wind speed) are November and December (7.8km/h).
Average humidity in September
Guamúchil, Mexico
- Average humidity in September: 71%
The months with the highest relative humidity are August and September (71%).
The month with the lowest relative humidity is May (36%).
Average rainfall in September
Guamúchil, Mexico
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is August (91mm).
The driest month (with the least rainfall) is April (0mm).
Average rainfall days in September
Guamúchil, Mexico
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is April (1 days).
Average daylight in September /
Average sunshine in September
Guamúchil, Mexico
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 7h and 12min).
Average sunshine days in September
Guamúchil, Mexico
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is March (29.4 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in September
Guamúchil, Mexico
- Average UV index in September: 7
The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in September
Guamúchil, Mexico
- Average cloud cover in September: 28
The month with the most cloud cover is July (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 8).
Average visibility in September
Guamúchil, Mexico
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (10km).
The month with the lowest visibility is August (9km).





