September weather forecastEl Coyol, Guatemala
September
Weather in September
The first month of the autumn, September, is still a warm month in El Coyol, Guatemala, with an average temperature ranging between min 20°C (68°F) and max 28.8°C (83.8°F).Temperature
The transition from August to September sees an average high-temperature of a still warm 28.8°C (83.8°F), indicating a minor variance from the prior month. El Coyol records a consistent low-temperature of 20°C (68°F) during September nights.Heat index
During September, the heat index is estimated at a sweltering 35°C (95°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Given the heat index, its values are aligned with shaded sites and gentle winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The months with the highest humidity are September and October, with an average relative humidity of 84%.Rainfall
In El Coyol, Guatemala, during September, the rain falls for 22.6 days and regularly aggregates up to 116mm (4.57") of precipitation. Throughout the year, in El Coyol, Guatemala, there are 169.5 rainfall days, and 865mm (34.06") of precipitation is accumulated.Daylight
The average length of the day in September in El Coyol is 12h and 12min.On the first day of September, sunrise is at 05:48 and sunset at 18:11. On the last day of the month, sunrise is at 05:49 and sunset at 17:49 CST.
Sunshine
In September, the average sunshine in El Coyol is 9.4h.UV index
January, February, May through December, with an average maximum UV index of 6, are months with the lowest UV index in El Coyol, Guatemala. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
El Coyol, Guatemala
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is April (32.6°C).
The month with the lowest average high temperature is October (28.1°C).
- Average low temperature in September: 20°C
The month with the highest average low temperature is May (21.7°C).
The coldest month (with the lowest average low temperature) is January (17.9°C).
Average pressure in September
El Coyol, Guatemala
- Average pressure in September: 1011.7mbar
The month with the highest atmospheric pressure is January (1014.1mbar).
The month with the lowest atmospheric pressure is May (1011.6mbar).
Average wind speed in September
El Coyol, Guatemala
- Average wind speed in September: 5.2km/h
The windiest month (with the highest average wind speed) is January (10.6km/h).
The calmest months (with the lowest average wind speed) are June and September (5.2km/h).
Average humidity in September
El Coyol, Guatemala
- Average humidity in September: 84%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is March (63%).
Average rainfall in September
El Coyol, Guatemala
- Average rainfall in September: 116mm
The wettest month (with the highest rainfall) is October (162mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
El Coyol, Guatemala
- Average rainfall days in September: 22.6 days
The month with the highest number of rainy days is May (24.2 days).
The month with the least rainy days is January (1.8 days).
Average daylight in September /
Average sunshine in September
El Coyol, Guatemala
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days in September
El Coyol, Guatemala
- Average sunshine days in September: 6.3 days
The month with the most sunshine days is January (28.4 days).
The month with the least sunshine days is June (5.9 days).
Average UV index in September
El Coyol, Guatemala
- Average UV index in September: 6
The months with the highest UV index are March and April (UV index 7).
The months with the lowest UV index are January, February, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
El Coyol, Guatemala
- Average cloud cover in September: 42
The months with the most cloud cover are June and September (Cloud cover 42).
The months with the least cloud cover are January and December (Cloud cover 12).
Average visibility in September
El Coyol, Guatemala
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are June, August, September and October (8km).
