September weather forecastChahal, Guatemala
September
Weather in September
September, the first month of the autumn in Chahal, is still a tropical month, with an average temperature fluctuating between 30.5°C (86.9°F) and 20.7°C (69.3°F).Temperature
September's presence marks an average high-temperature of a still hot 30.5°C (86.9°F), subtly varied from August's 31.5°C (88.7°F). In the month of September, the temperature in Chahal generally rests at an average low of 20.7°C (69.3°F).Heat index
The heat index value during September is appraised at a blistering 41°C (105.8°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In September, the average relative humidity is 85%.Rainfall
In September, in Chahal, the rain falls for 27.9 days. Throughout September, 156mm (6.14") of precipitation is accumulated. Throughout the year, there are 260.2 rainfall days, and 1135mm (44.69") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 13min.On the first day of the month, sunrise is at 05:45 and sunset at 18:10. On the last day of September, sunrise is at 05:48 and sunset at 17:48 CST.
Sunshine
In Chahal, the average sunshine in September is 7h.UV index
In September, the average daily maximum UV index in Chahal is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 6 in September leads to these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chahal, Guatemala
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is April (32.8°C).
The month with the lowest average high temperature is January (25.4°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is June (21.5°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).
Average pressure in September
Chahal, Guatemala
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is January (1017.4mbar).
The month with the lowest atmospheric pressure is September (1012mbar).
Average wind speed in September
Chahal, Guatemala
- Average wind speed in September: 4.3km/h
The windiest month (with the highest average wind speed) is April (6.3km/h).
The calmest month (with the lowest average wind speed) is October (4.2km/h).
Average humidity in September
Chahal, Guatemala
- Average humidity in September: 85%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Chahal, Guatemala
- Average rainfall in September: 156mm
The wettest month (with the highest rainfall) is October (171mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in September
Chahal, Guatemala
- Average rainfall days in September: 27.9 days
The month with the highest number of rainy days is September (27.9 days).
The month with the least rainy days is February (14.9 days).
Average daylight in September /
Average sunshine in September
Chahal, Guatemala
- Average daylight in September: 12h and 12min
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: 7h and 0min
The month with the most sunshine is April (Average sunshine: 9h and 42min).
The months with the least sunshine are January and November (Average sunshine: 4h and 24min).
Average sunshine days in September
Chahal, Guatemala
- Average sunshine days in September: 1.4 days
The month with the most sunshine days is March (11.7 days).
The month with the least sunshine days is September (1.4 days).
Average UV index in September
Chahal, Guatemala
- Average UV index in September: 6
The months with the highest UV index are March, April and June (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 5).
Average cloud cover in September
Chahal, Guatemala
- Average cloud cover in September: 59
The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in September
Chahal, Guatemala
- Average visibility in September: 6km
The month with the highest visibility is April (8km).
The months with the lowest visibility are January, February, September, October, November and December (6km).
