September weather forecastColomba, Guatemala
September
Weather in September
September, the first month of the autumn in Colomba, is still a tropical month, with temperature in the range of an average high of 30.1°C (86.2°F) and an average low of 21.4°C (70.5°F).Temperature
The onset of September notes an average high-temperature of a still hot 30.1°C (86.2°F), subtly shifted from August's 30.9°C (87.6°F). Throughout September nights, Colomba experiences a consistent temperature average of 21.4°C (70.5°F).Heat index
For September, the heat index is calculated to be a torrid 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
September and October, with an average relative humidity of 78%, are the most humid months.Rainfall
In Colomba, in September, it is raining for 27.7 days, with typically 198mm (7.8") of accumulated precipitation. Throughout the year, in Colomba, Guatemala, there are 222.8 rainfall days, and 1340mm (52.76") of precipitation is accumulated.Daylight
The average length of the day in September in Colomba is 12h and 13min.On the first day of September in Colomba, sunrise is at 05:54 and sunset at 18:18. On the last day of the month, sunrise is at 05:56 and sunset at 17:56 CST.
Sunshine
In Colomba, the average sunshine in September is 10.6h.UV index
The months with the lowest UV index are January, May, June, August through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 6 in September translates into this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Colomba, Guatemala
- Average high temperature in September: 30.1°C
The warmest month (with the highest average high temperature) is April (32.5°C).
The month with the lowest average high temperature is October (29.8°C).
- Average low temperature in September: 21.4°C
The month with the highest average low temperature is May (22.7°C).
The coldest month (with the lowest average low temperature) is December (19.5°C).
Average pressure in September
Colomba, Guatemala
- Average pressure in September: 1012.3mbar
The month with the highest atmospheric pressure is January (1014.3mbar).
The month with the lowest atmospheric pressure is October (1012mbar).
Average wind speed in September
Colomba, Guatemala
- Average wind speed in September: 5.5km/h
The windiest month (with the highest average wind speed) is March (6.7km/h).
The calmest months (with the lowest average wind speed) are May, June, September and October (5.5km/h).
Average humidity in September
Colomba, Guatemala
- Average humidity in September: 78%
The months with the highest relative humidity are September and October (78%).
The months with the lowest relative humidity are January, February and March (59%).
Average rainfall in September
Colomba, Guatemala
- Average rainfall in September: 198mm
The wettest month (with the highest rainfall) is May (261mm).
The driest months (with the least rainfall) are January and February (11mm).
Average rainfall days in September
Colomba, Guatemala
- Average rainfall days in September: 27.7 days
The month with the highest number of rainy days is September (27.7 days).
The month with the least rainy days is February (5.3 days).
Average daylight in September /
Average sunshine in September
Colomba, Guatemala
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 10h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 30min).
Average sunshine days in September
Colomba, Guatemala
- Average sunshine days in September: 1.3 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is September (1.3 days).
Average UV index in September
Colomba, Guatemala
- Average UV index in September: 6
The months with the highest UV index are February, March, April and July (UV index 7).
The months with the lowest UV index are January, May, June, August, September, October, November and December (UV index 6).
Average cloud cover in September
Colomba, Guatemala
- Average cloud cover in September: 35
The month with the most cloud cover is September (Cloud cover 35).
The month with the least cloud cover is January (Cloud cover 11).
Average visibility in September
Colomba, Guatemala
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
