September weather forecastPasto, Colombia
September
Weather in September
September witnesses another surge in rainfall reaching 85mm (3.35"), up from 72mm (2.83") in August. Despite the increase in rainfall, the city does not compromise on the sunshine hours and daylight. During this month, Pasto experiences the most sunshine, a definite treat for those who enjoy the warmth. A gradual increase in cloud coverage signifies the receding dry season. The steadily increasing trend in rainfall makes the city's weather ready for the final quarter of the year.Temperature
As September takes hold, the average high-temperature is a still agreeable 22.3°C (72.1°F), nearly mirroring that of the previous month. Pasto's nighttime temperature during September is consistently averaged at a fresh 12.3°C (54.1°F).Humidity
The average relative humidity in September is 73%.Rainfall
In Pasto, Colombia, in September, it is raining for 23.1 days, with typically 85mm (3.35") of accumulated precipitation. Throughout the year, there are 317.6 rainfall days, and 1710mm (67.32") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 7min.On the first day of the month, sunrise is at 06:04 and sunset at 18:13. On the last day of September, sunrise is at 05:55 and sunset at 18:02 -05.
Sunshine
September has the most sunshine of the year in Pasto, with an average of 9.9h of sunshine.UV index
The months with the highest UV index are February, April through September and December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Ensure safety - Imperative it is to shield skin and eyes from damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pasto, Colombia
- Average high temperature in September: 22.3°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The months with the lowest average high temperature are November and December (20.2°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is February (12.9°C).
The coldest month (with the lowest average low temperature) is July (12°C).
Average pressure in September
Pasto, Colombia
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is July (1014.7mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in September
Pasto, Colombia
- Average wind speed in September: 5.2km/h
The windiest month (with the highest average wind speed) is July (7.1km/h).
The calmest month (with the lowest average wind speed) is February (3.5km/h).
Average humidity in September
Pasto, Colombia
- Average humidity in September: 73%
The month with the highest relative humidity is November (87%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Pasto, Colombia
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is April (209mm).
The driest month (with the least rainfall) is August (72mm).
Average rainfall days in September
Pasto, Colombia
- Average rainfall days in September: 23.1 days
The month with the highest number of rainy days is October (29.1 days).
The month with the least rainy days is July (22.4 days).
Average daylight in September /
Average sunshine in September
Pasto, Colombia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is September (Average sunshine: 9h and 54min).
The months with the least sunshine are March and April (Average sunshine: 6h and 30min).
Average sunshine days in September
Pasto, Colombia
- Average sunshine days in September: 3.1 days
The month with the most sunshine days is August (3.3 days).
The months with the least sunshine days are April and November (1.4 days).
Average UV index in September
Pasto, Colombia
- Average UV index in September: 5
The months with the highest UV index are February, April, May, June, July, August, September and December (UV index 5).
The months with the lowest UV index are January, March, October and November (UV index 4).
Average cloud cover in September
Pasto, Colombia
- Average cloud cover in September: 30
The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Pasto, Colombia
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are March and November (7km).
