September weather forecast
Dolores, Guatemala

The first month of the autumn, September, is still a hot month in Dolores, Guatemala, with an average temperature ranging between max 30.5°C (86.9°F) and min 20.7°C (69.3°F).

Temperature

The transition into September notes an average high-temperature of a still hot 30.5°C (86.9°F), revealing a mild distinction from the 31.5°C (88.7°F) in August. Dolores observes an average nighttime low-temperature of 20.7°C (69.3°F) during the month of September.

Heat index

The average heat index in September is calculated to be a blisteringly hot 41°C (105.8°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
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. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In Dolores, the average relative humidity in September is 85%.

Rainfall

In Dolores, Guatemala, during September, the rain falls for 27.9 days and regularly aggregates up to 156mm (6.14") of precipitation. In Dolores, during the entire year, the rain falls for 260.2 days and collects up to 1135mm (44.69") of precipitation.

Daylight

The average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:44 and sunset at 18:10. On the last day of September, sunrise is at 05:47 and sunset at 17:47 CST.

Sunshine

In September, the average sunshine is 7h.

UV index

The average daily maximum UV index in September is 6. A UV Index 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:
Prevent overexposure. Protection from the sun's harmful effects is needed. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.