September weather forecast
El Chal, Guatemala

September, the first month of the autumn in El Chal, is also a hot month, with an average temperature varying between 32.6°C (90.7°F) and 21.5°C (70.7°F).

Temperature

As August transitions into September, El Chal records an average high-temperature of a still hot 32.6°C (90.7°F), showing a gentle shift from the preceding month. El Chal, in September, witnesses an average low-temperature of 21.5°C (70.7°F).

Heat index

September's heat index is computed to be a life-threatening hot 48°C (118.4°F). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.
Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In September, the average relative humidity is 83%.

Rainfall

In El Chal, during September, the rain falls for 26.8 days and regularly aggregates up to 120mm (4.72") of precipitation. Throughout the year, there are 227.8 rainfall days, and 871mm (34.29") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September, sunrise is at 05:45 and sunset at 18:11. On the last day of the month, sunrise is at 05:48 and sunset at 17:48 CST.

Sunshine

The average sunshine in September in El Chal is 7.1h.

UV index

In El Chal, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.