September weather forecast
San Juan Tecuaco, Guatemala

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

Temperature

San Juan Tecuaco notes an average high-temperature of a still moderately hot 28.8°C (83.8°F) in September, hardly diverging from August. In the month of September, the temperature generally rests at an average low of 20°C (68°F).

Heat index

In September, the heat index is estimated at a fiery hot 35°C (95°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

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

Rainfall

In San Juan Tecuaco, in September, it is raining for 22.6 days, with typically 116mm (4.57") of accumulated precipitation. Throughout the year, in San Juan Tecuaco, there are 169.5 rainfall days, and 865mm (34.06") of precipitation is accumulated.

Daylight

In San Juan Tecuaco, the average length of the day in September is 12h and 12min.
On the first day of September in San Juan Tecuaco, sunrise is at 05:49 and sunset at 18:12. On the last day of the month, sunrise is at 05:50 and sunset at 17:51 CST.

Sunshine

The average sunshine in September 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 San Juan Tecuaco, Guatemala. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 6 in September suggests the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.