September weather forecastColotlán, Mexico
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Colotlán, Mexico, with an average temperature varying between 13.8°C (56.8°F) and 24.6°C (76.3°F).Temperature
The onset of September brings with it an average high-temperature of a still warm 24.6°C (76.3°F), showing a negligible variation from the month before. An average low-temperature of 13.8°C (56.8°F) marks the month of September in Colotlán.Humidity
With an average relative humidity of 72%, September is the most humid month in Colotlán.Rainfall
In September, in Colotlán, the rain falls for 24.1 days. Throughout September, 112mm (4.41") of precipitation is accumulated. Throughout the year, there are 131.5 rainfall days, and 557mm (21.93") of precipitation is accumulated.Daylight
In Colotlán, the average length of the day in September is 12h and 16min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:09 pm. On the last day of September, in Colotlán, sunrise is at 6:44 am and sunset at 6:41 pm CST.
Sunshine
The average sunshine in September in Colotlán is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Be vigilant - Preventing sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Colotlán, Mexico
- Average high temperature in September: 24.6°C
The warmest month (with the highest average high temperature) is May (29.5°C).
The month with the lowest average high temperature is January (20.8°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is June (16.6°C).
The coldest month (with the lowest average low temperature) is January (6.8°C).
Average pressure in September
Colotlán, Mexico
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is January (1017.8mbar).
The months with the lowest atmospheric pressure are May and June (1013.2mbar).
Average wind speed in September
Colotlán, Mexico
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is April (9.9km/h).
The calmest month (with the lowest average wind speed) is July (5.9km/h).
Average humidity in September
Colotlán, Mexico
- Average humidity in September: 72%
The month with the highest relative humidity is September (72%).
The month with the lowest relative humidity is April (34%).
Average rainfall in September
Colotlán, Mexico
- Average rainfall in September: 112mm
The wettest month (with the highest rainfall) is July (136mm).
The driest month (with the least rainfall) is April (3mm).
Average rainfall days in September
Colotlán, Mexico
- Average rainfall days in September: 24.1 days
The month with the highest number of rainy days is July (24.5 days).
The month with the least rainy days is April (2.8 days).
Average daylight in September /
Average sunshine in September
Colotlán, Mexico
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is July (Average sunshine: 9h and 6min).
Average sunshine days in September
Colotlán, Mexico
- Average sunshine days in September: 3.6 days
The month with the most sunshine days is April (27.5 days).
The month with the least sunshine days is July (2.3 days).
Average UV index in September
Colotlán, Mexico
- Average UV index in September: 5
The months with the highest UV index are May and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover in September
Colotlán, Mexico
- Average cloud cover in September: 32
The months with the most cloud cover are July and September (Cloud cover 32).
The months with the least cloud cover are March and April (Cloud cover 10).
Average visibility in September
Colotlán, Mexico
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).
