September weather forecast
Comapa, Guatemala

The first month of the autumn, September, is also a moderately hot month in Comapa, Guatemala, with an average temperature fluctuating between 20°C (68°F) and 28.8°C (83.8°F).

Temperature

Comapa, Guatemala, experiences an average high-temperature of a still warm 28.8°C (83.8°F) in September, marking an insignificant shift from 29.8°C (85.6°F) in August. During the month of September, Comapa's nighttime temperature lowers to an average of 20°C (68°F).

Heat index

For most parts of September, the heat index is evaluated at a torrid 35°C (95°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

September and October, with an average relative humidity of 84%, are the most humid months.

Rainfall

In Comapa, during September, the rain falls for 22.6 days and regularly aggregates up to 116mm (4.57") of precipitation. In Comapa, Guatemala, during the entire year, the rain falls for 169.5 days and collects up to 865mm (34.06") of precipitation.

Daylight

The average length of the day in September is 12h and 12min.
On the first day of September in Comapa, sunrise is at 05:47 and sunset at 18:10. 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 Comapa 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 Comapa. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 6 in September translates into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.