September weather forecast
Monjas, Guatemala

September, the first month of the autumn in Monjas, is still a warm month, with an average temperature ranging between max 28.8°C (83.8°F) and min 20°C (68°F).

Temperature

The arrival of September records an average high-temperature of a still warm 28.8°C (83.8°F), closely related to the 29.8°C (85.6°F) observed in August. The temperature in Monjas, Guatemala, dips to an average of 20°C (68°F) during September nights.

Heat index

The average heat index in September is computed to be a very hot 35°C (95°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

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

Rainfall

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

Daylight

In September, the average length of the day in Monjas is 12h and 13min.
On the first day of the month, sunrise is at 05:47 and sunset at 18:11. On the last day of September, sunrise is at 05:49 and sunset at 17:49 CST.

Sunshine

The average sunshine in September in Monjas 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 Monjas. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.