September weather forecastDolores, Guatemala
September
Weather in September
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dolores, Guatemala
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is April (32.8°C).
The month with the lowest average high temperature is January (25.4°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is June (21.5°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).
Average pressure in September
Dolores, Guatemala
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is January (1017.4mbar).
The month with the lowest atmospheric pressure is September (1012mbar).
Average wind speed in September
Dolores, Guatemala
- Average wind speed in September: 4.3km/h
The windiest month (with the highest average wind speed) is April (6.3km/h).
The calmest month (with the lowest average wind speed) is October (4.2km/h).
Average humidity in September
Dolores, Guatemala
- Average humidity in September: 85%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Dolores, Guatemala
- Average rainfall in September: 156mm
The wettest month (with the highest rainfall) is October (171mm).
The driest month (with the least rainfall) is February (33mm).
Average rainfall days in September
Dolores, Guatemala
- Average rainfall days in September: 27.9 days
The month with the highest number of rainy days is September (27.9 days).
The month with the least rainy days is February (14.9 days).
Average daylight in September /
Average sunshine in September
Dolores, Guatemala
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is April (Average sunshine: 9h and 42min).
The months with the least sunshine are January and November (Average sunshine: 4h and 24min).
Average sunshine days in September
Dolores, Guatemala
- Average sunshine days in September: 1.4 days
The month with the most sunshine days is March (11.7 days).
The month with the least sunshine days is September (1.4 days).
Average UV index in September
Dolores, Guatemala
- Average UV index in September: 6
The months with the highest UV index are March, April and June (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 5).
Average cloud cover in September
Dolores, Guatemala
- Average cloud cover in September: 59
The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in September
Dolores, Guatemala
- Average visibility in September: 6km
The month with the highest visibility is April (8km).
The months with the lowest visibility are January, February, September, October, November and December (6km).
