September weather forecastRayón, Mexico
September
Weather in September
September, the first month of the autumn in Rayón, is also a moderately hot month, with an average temperature fluctuating between 27.3°C (81.1°F) and 16.8°C (62.2°F).Temperature
The weather during September records an average high-temperature of a still warm 27.3°C (81.1°F), closely mirroring the preceding month. Throughout September, an average low-temperature of 16.8°C (62.2°F) is expected.Heat index
The heat index for September is appraised at a tropical 30°C (86°F). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
September is the most humid month, with an average relative humidity of 76%.Rainfall
In September, the rain falls for 13.9 days. Throughout September, 43mm (1.69") of precipitation is accumulated. Throughout the year, there are 105.9 rainfall days, and 288mm (11.34") of precipitation is accumulated.Snowfall
In Rayón, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 16min.On the first day of September, sunrise is at 6:21 am and sunset at 6:54 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:26 pm CST.
Sunshine
The average sunshine in September is 8.7h.UV index
The months with the highest UV index are March through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rayón, Mexico
- Average high temperature in September: 27.3°C
The warmest month (with the highest average high temperature) is May (31.6°C).
The month with the lowest average high temperature is January (21.8°C).
- Average low temperature in September: 16.8°C
The month with the highest average low temperature is May (18°C).
The coldest month (with the lowest average low temperature) is January (9.7°C).
Average pressure in September
Rayón, Mexico
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is January (1019.3mbar).
The month with the lowest atmospheric pressure is May (1013.4mbar).
Average wind speed in September
Rayón, Mexico
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is April (10.1km/h).
The calmest month (with the lowest average wind speed) is November (6.3km/h).
Average humidity in September
Rayón, Mexico
- Average humidity in September: 76%
The month with the highest relative humidity is September (76%).
The month with the lowest relative humidity is April (55%).
Average rainfall in September
Rayón, Mexico
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is July (47mm).
The driest months (with the least rainfall) are January and March (7mm).
Average rainfall days in September
Rayón, Mexico
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is September (13.9 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in September
Rayón, Mexico
- Average snowfall in September: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Rayón, Mexico
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Rayón, 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 48min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).
Average sunshine days in September
Rayón, Mexico
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is January (25 days).
The month with the least sunshine days is September (13.3 days).
Average UV index in September
Rayón, 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
Rayón, Mexico
- Average cloud cover in September: 42
The month with the most cloud cover is September (Cloud cover 42).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in September
Rayón, Mexico
- Average visibility in September: 8km
The months with the highest visibility are February, March, April and May (10km).
The months with the lowest visibility are September and October (8km).





