Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The onset of September brings an average high-temperature of a still warm 23.4°C (74.1°F), nearly matching the August temperature. Sumpango's average low-temperature is measured at a refreshing 15°C (59°F) during September.Humidity
With an average relative humidity of 90%, September is the most humid month.Rainfall
In September, the rain falls for 28.7 days. Throughout September, 269mm (10.59") of precipitation is accumulated. Throughout the year, in Sumpango, there are 231.3 rainfall days, and 1656mm (65.2") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 13min.On the first day of September, sunrise is at 05:50 and sunset at 18:14. On the last day of the month, sunrise is at 05:52 and sunset at 17:52 CST.
Sunshine
In September, the average sunshine is 7.7h.UV index
In Sumpango, Guatemala, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Sumpango in September?
What is the most humid month in Sumpango?
What is the average humidity in September in Sumpango?
How many days does it rain in September in Sumpango?
What is the average length of the day in September in Sumpango?
When is the sunrise / sunset in September in Sumpango?
How many hours of sunshine does Sumpango have in September?
What is the UV index reading in September in Sumpango?
Average temperature in September
Sumpango, Guatemala
- Average high temperature in September: 23.4°C
The warmest month (with the highest average high temperature) is April (27.3°C).
The month with the lowest average high temperature is October (22.5°C).
- Average low temperature in September: 15°C
The month with the highest average low temperature is May (16.5°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).
Average pressure in September
Sumpango, Guatemala
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is May (1012.5mbar).
Average wind speed in September
Sumpango, Guatemala
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is January (12.8km/h).
The calmest month (with the lowest average wind speed) is September (5.9km/h).
Average humidity in September
Sumpango, Guatemala
- Average humidity in September: 90%
The month with the highest relative humidity is September (90%).
The month with the lowest relative humidity is March (69%).
Average rainfall in September
Sumpango, Guatemala
- Average rainfall in September: 269mm
The wettest month (with the highest rainfall) is May (285mm).
The driest month (with the least rainfall) is January (7mm).
Average rainfall days in September
Sumpango, Guatemala
- Average rainfall days in September: 28.7 days
The month with the highest number of rainy days is September (28.7 days).
The month with the least rainy days is January (6.7 days).
Average daylight in September /
Average sunshine in September
Sumpango, Guatemala
- Average daylight in September: 12h and 1min
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: 7h and 4min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 24min).
Average sunshine days in September
Sumpango, Guatemala
- Average sunshine days in September: 0.9 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is September (0.9 days).
Average UV index in September
Sumpango, Guatemala
- Average UV index in September: 5
The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are August and October (UV index 4).
Average cloud cover in September
Sumpango, Guatemala
- Average cloud cover in September: 59
The months with the most cloud cover are June and September (Cloud cover 59).
The months with the least cloud cover are January, February and March (Cloud cover 26).
Average visibility in September
Sumpango, Guatemala
- Average visibility in September: 6km
The month with the highest visibility is March (10km).
The month with the lowest visibility is September (6km).
