Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
San Juan Lajarcia's average high-temperature in September is a still hot 31.5°C (88.7°F), marking an insignificant difference from the 32.5°C (90.5°F) of August. Throughout the month of September, the nighttime temperature dips to an average of 23.3°C (73.9°F).Heat index
For most parts of September, the heat index is computed to be a scorching 41°C (105.8°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Consider that heat index readings are for situations in the shade and light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
With an average relative humidity of 75%, September is the most humid month in San Juan Lajarcia, Mexico.Rainfall
In San Juan Lajarcia, during September, the rain falls for 19.7 days and regularly aggregates up to 98mm (3.86") of precipitation. Throughout the year, there are 118.2 rainfall days, and 462mm (18.19") of precipitation is accumulated.Daylight
In San Juan Lajarcia, the average length of the day in September is 12h and 13min.On the first day of September, sunrise is at 6:10 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 6:13 pm CST.
Sunshine
The average sunshine in September in San Juan Lajarcia is 9h.UV index
The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 suggests this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in San Juan Lajarcia?
What is the most humid month in San Juan Lajarcia?
What is the average humidity in September in San Juan Lajarcia?
How many days does it rain in September in San Juan Lajarcia?
What is the average length of the day in September in San Juan Lajarcia?
When are sunrise and sunset in September in San Juan Lajarcia?
How long on average sun shines in September in San Juan Lajarcia?
What is the month with the highest UV index in San Juan Lajarcia?
What is the UV index intensity in September in San Juan Lajarcia?
Average temperature in September
San Juan Lajarcia, Mexico
- Average high temperature in September: 31.5°C
The warmest month (with the highest average high temperature) is May (33.6°C).
The month with the lowest average high temperature is January (28.1°C).
- Average low temperature in September: 23.3°C
The month with the highest average low temperature is May (24.8°C).
The coldest month (with the lowest average low temperature) is January (19.6°C).
Average pressure in September
San Juan Lajarcia, Mexico
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is January (1015.3mbar).
The month with the lowest atmospheric pressure is May (1011.2mbar).
Average wind speed in September
San Juan Lajarcia, Mexico
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is January (19.4km/h).
The calmest month (with the lowest average wind speed) is June (9.2km/h).
Average humidity in September
San Juan Lajarcia, Mexico
- Average humidity in September: 75%
The month with the highest relative humidity is September (75%).
The months with the lowest relative humidity are March and April (62%).
Average rainfall in September
San Juan Lajarcia, Mexico
- Average rainfall in September: 98mm
The wettest month (with the highest rainfall) is August (99mm).
The driest months (with the least rainfall) are January, February and March (2mm).
Average rainfall days in September
San Juan Lajarcia, Mexico
- Average rainfall days in September: 19.7 days
The month with the highest number of rainy days is September (19.7 days).
The month with the least rainy days is February (1.8 days).
Average daylight in September /
Average sunshine in September
San Juan Lajarcia, Mexico
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is May (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 36min).
Average sunshine days in September
San Juan Lajarcia, Mexico
- Average sunshine days in September: 9 days
The month with the most sunshine days is December (27.7 days).
The month with the least sunshine days is September (9 days).
Average UV index in September
San Juan Lajarcia, Mexico
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).
Average cloud cover in September
San Juan Lajarcia, Mexico
- Average cloud cover in September: 34
The months with the most cloud cover are June and September (Cloud cover 34).
The months with the least cloud cover are February and December (Cloud cover 9).
Average visibility in September
San Juan Lajarcia, 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).
San Juan Lajarcia, Mexico
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