September weather forecastPalermo, Colombia
September
Weather in September
The first month of the autumn, September, is still a warm month in Palermo, Colombia, with an average temperature fluctuating between 27.5°C (81.5°F) and 16.8°C (62.2°F).Temperature
Palermo, Colombia, observes a minor difference in average high-temperatures between August's 26.8°C (80.2°F) and September's 27.5°C (81.5°F). September nights in Palermo are marked by an average low-temperature of 16.8°C (62.2°F).Heat index
The heat index value during September is calculated to be 29°C (84.2°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Observations indicate that the heat index values are for shady locations with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
The average relative humidity in September in Palermo is 65%.Rainfall
In Palermo, in September, during 20.1 rainfall days, 51mm (2.01") of precipitation is typically accumulated. In Palermo, during the entire year, the rain falls for 257.6 days and collects up to 711mm (27.99") of precipitation.Daylight
The average length of the day in September in Palermo is 12h and 8min.On the first day of September in Palermo, sunrise is at 05:56 and sunset at 18:06. On the last day of the month, sunrise is at 05:48 and sunset at 17:54 -05.
Sunshine
In Palermo, the average sunshine in September is 10.5h.UV index
The months with the highest UV index are January through April, July through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Palermo, Colombia
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is February (29.4°C).
The month with the lowest average high temperature is July (25.6°C).
- Average low temperature in September: 16.8°C
The months with the highest average low temperature are March and May (17.3°C).
The coldest months (with the lowest average low temperature) are January and December (15.5°C).
Average pressure in September
Palermo, Colombia
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is July (1015.4mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in September
Palermo, Colombia
- Average wind speed in September: 5.6km/h
The windiest month (with the highest average wind speed) is August (6.4km/h).
The calmest month (with the lowest average wind speed) is November (3.9km/h).
Average humidity in September
Palermo, Colombia
- Average humidity in September: 65%
The months with the highest relative humidity are April and May (73%).
The months with the lowest relative humidity are January and February (64%).
Average rainfall in September
Palermo, Colombia
- Average rainfall in September: 51mm
The wettest months (with the highest rainfall) are March and April (90mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in September
Palermo, Colombia
- Average rainfall days in September: 20.1 days
The month with the highest number of rainy days is April (27 days).
The month with the least rainy days is January (13.8 days).
Average daylight in September /
Average sunshine in September
Palermo, Colombia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in September: 10h and 30min
The months with the most sunshine are May and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 8h and 48min).
Average sunshine days in September
Palermo, Colombia
- Average sunshine days in September: 6.7 days
The month with the most sunshine days is January (13.1 days).
The month with the least sunshine days is April (2.3 days).
Average UV index in September
Palermo, Colombia
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are May and June (UV index 5).
Average cloud cover in September
Palermo, Colombia
- Average cloud cover in September: 29
The month with the most cloud cover is April (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 25).
Average visibility in September
Palermo, Colombia
- Average visibility in September: 10km
The months with the highest visibility are January, February and September (10km).
The months with the lowest visibility are March, April, May, June, July, August, October, November and December (9km).
