September weather forecastLos Mochis, Mexico
September
Weather in September
September, the first month of the autumn in Los Mochis, is still a tropical month, with an average temperature varying between 27.5°C (81.5°F) and 32.5°C (90.5°F).Temperature
In Los Mochis, September's average high-temperature stands at a still hot 32.5°C (90.5°F), closely related to the preceding month. Los Mochis documents an average low-temperature of 27.5°C (81.5°F) for the nights of September.Heat index
In September, the average heat index is calculated to be a blisteringly hot 42°C (107.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 69%.Rainfall
September is the month with the most rainfall. Rain falls for 13.1 days and accumulates 71mm (2.8") of precipitation.Daylight
In Los Mochis, the average length of the day in September is 12h and 17min.On the first day of September, sunrise is at 5:56 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 6:03 pm MST.
Sunshine
The average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September in Los Mochis is 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 7 during September translates into the following directions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Los Mochis, Mexico
- Average high temperature in September: 32.5°C
The warmest month (with the highest average high temperature) is August (33.3°C).
The month with the lowest average high temperature is January (23.8°C).
- Average low temperature in September: 27.5°C
The month with the highest average low temperature is August (28.2°C).
The coldest months (with the lowest average low temperature) are January and February (16.6°C).
Average pressure in September
Los Mochis, Mexico
- Average pressure in September: 1009.5mbar
The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is September (1009.5mbar).
Average wind speed in September
Los Mochis, Mexico
- Average wind speed in September: 12.7km/h
The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (12.5km/h).
Average humidity in September
Los Mochis, Mexico
- Average humidity in September: 69%
The months with the highest relative humidity are August and September (69%).
The month with the lowest relative humidity is May (52%).
Average rainfall in September
Los Mochis, Mexico
- Average rainfall in September: 71mm
The wettest month (with the highest rainfall) is September (71mm).
The driest month (with the least rainfall) is April (1mm).
Average rainfall days in September
Los Mochis, Mexico
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is May (1.2 days).
Average daylight in September /
Average sunshine in September
Los Mochis, 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: 9h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).
Average sunshine days in September
Los Mochis, Mexico
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Los Mochis, Mexico
- Average UV index in September: 7
The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January and December (UV index 5).
Average cloud cover in September
Los Mochis, Mexico
- Average cloud cover in September: 20
The month with the most cloud cover is July (Cloud cover 23).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility in September
Los Mochis, 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).
