September weather forecast
Agua Blanca, Guatemala

The first month of the autumn, September, is also a moderately hot month in Agua Blanca, Guatemala, with an average temperature varying between 18.8°C (65.8°F) and 29.5°C (85.1°F).

Temperature

Shifting into September, Agua Blanca records an average high-temperature of a still warm 29.5°C (85.1°F), presenting minor fluctuations compared to the previous month. Agua Blanca cools down to an average low-temperature of 18.8°C (65.8°F) throughout the month of September.

Heat index

For most parts of September, the heat index is calculated to be a fiery hot 37°C (98.6°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In September, the average relative humidity in Agua Blanca is 83%.

Rainfall

The month with the most rainfall is September, when the rain falls for 23.8 days and typically aggregates up to 131mm (5.16") of precipitation.

Daylight

In September, the average length of the day in Agua Blanca, Guatemala, is 12h and 13min.
On the first day of the month, sunrise is at 05:46 and sunset at 18:10. On the last day of September, sunrise is at 05:48 and sunset at 17:48 CST.

Sunshine

The average sunshine in September in Agua Blanca is 8.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 6 in September leads to these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.