September weather forecastChamac, Guatemala
September weather for Chamac, Guatemala: On the first day of September in Chamac, Guatemala, sunrise is at 05:54 and sunset at 18:18. September, the first month of the autumn in Chamac, is still a pleasant month, with an average temperature ranging between min 13.5°C (56.3°F) and max 20.8°C (69.4°F).
September
Weather in September
September, the first month of the autumn in Chamac, is still a pleasant month, with an average temperature ranging between min 13.5°C (56.3°F) and max 20.8°C (69.4°F).Temperature
Chamac, Guatemala, starts September with an average high-temperature of a still agreeable 20.8°C (69.4°F), hinting at a minimal fluctuation from August. Chamac experiences a steady low-temperature of 13.5°C (56.3°F) throughout September.Humidity
With an average relative humidity of 87%, September is the most humid month in Chamac.Rainfall
In Chamac, in September, during 28.9 rainfall days, 307mm (12.09") of precipitation is typically accumulated. In Chamac, during the entire year, the rain falls for 263.7 days and collects up to 2085mm (82.09") of precipitation.Daylight
In Chamac, the average length of the day in September is 12h and 13min.On the first day of the month, sunrise is at 05:54 and sunset at 18:18. On the last day of September, in Chamac, sunrise is at 05:56 and sunset at 17:56 CST.
Sunshine
In September, the average sunshine in Chamac is 8.5h.UV index
The months with the highest UV index are January through October and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chamac, Guatemala
- Average high temperature in September: 20.8°C
The warmest month (with the highest average high temperature) is April (23.8°C).
The month with the lowest average high temperature is October (20.7°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is May (14.3°C).
The coldest month (with the lowest average low temperature) is January (10.2°C).
Average pressure in September
Chamac, Guatemala
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is January (1015.3mbar).
The month with the lowest atmospheric pressure is May (1012.6mbar).
Average wind speed in September
Chamac, Guatemala
- Average wind speed in September: 4.4km/h
The windiest month (with the highest average wind speed) is January (6.1km/h).
The calmest month (with the lowest average wind speed) is May (4.1km/h).
Average humidity in September
Chamac, Guatemala
- Average humidity in September: 87%
The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is March (69%).
Average rainfall in September
Chamac, Guatemala
- Average rainfall in September: 307mm
The wettest month (with the highest rainfall) is May (372mm).
The driest month (with the least rainfall) is January (14mm).
Average rainfall days in September
Chamac, Guatemala
- Average rainfall days in September: 28.9 days
The months with the highest number of rainy days are June and October (29.2 days).
The month with the least rainy days is February (10.8 days).
Average daylight in September /
Average sunshine in September
Chamac, Guatemala
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is April (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).
Average sunshine days in September
Chamac, Guatemala
- Average sunshine days in September: 0.6 days
The month with the most sunshine days is December (13.5 days).
The month with the least sunshine days is October (0.5 days).
Average UV index in September
Chamac, Guatemala
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 5).
The month with the lowest UV index is November (UV index 4).
Average cloud cover in September
Chamac, Guatemala
- Average cloud cover in September: 51
The months with the most cloud cover are June and September (Cloud cover 51).
The months with the least cloud cover are January and February (Cloud cover 19).
Average visibility in September
Chamac, Guatemala
- Average visibility in September: 8km
The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are May, June, August, September and October (8km).





