September weather forecastUlloa, Colombia
September
Weather in September
September, the first month of the autumn in Ulloa, is also a moderately hot month, with an average temperature varying between 13.4°C (56.1°F) and 25.5°C (77.9°F).Temperature
The transition into September marks the average high-temperature at a still warm 25.5°C (77.9°F), differing minimally from August's 26°C (78.8°F). September nights indicate a noticeable temperature drop from the daytime highs, with an average reading lowering to a mild 13.4°C (56.1°F).Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 73%.Rainfall
In Ulloa, during September, the rain falls for 25.9 days and regularly aggregates up to 187mm (7.36") of precipitation. Throughout the year, there are 299.8 rainfall days, and 2047mm (80.59") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 8min.On the first day of the month, sunrise is at 05:56 and sunset at 18:08. On the last day of September, sunrise is at 05:50 and sunset at 17:55 -05.
Sunshine
In September, the average sunshine is 10.5h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 5. The months with the lowest UV index are January through December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ulloa, Colombia
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is August (26°C).
The month with the lowest average high temperature is November (23.5°C).
- Average low temperature in September: 13.4°C
The months with the highest average low temperature are April and May (14.3°C).
The coldest month (with the lowest average low temperature) is January (12.9°C).
Average pressure in September
Ulloa, Colombia
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is June (1013.5mbar).
The month with the lowest atmospheric pressure is February (1012.4mbar).
Average wind speed in September
Ulloa, Colombia
- Average wind speed in September: 2.4km/h
The windiest month (with the highest average wind speed) is July (2.7km/h).
The calmest month (with the lowest average wind speed) is December (2.3km/h).
Average humidity in September
Ulloa, Colombia
- Average humidity in September: 73%
The month with the highest relative humidity is November (81%).
The months with the lowest relative humidity are August and September (73%).
Average rainfall in September
Ulloa, Colombia
- Average rainfall in September: 187mm
The wettest month (with the highest rainfall) is October (238mm).
The driest month (with the least rainfall) is January (67mm).
Average rainfall days in September
Ulloa, Colombia
- Average rainfall days in September: 25.9 days
The month with the highest number of rainy days is October (29.5 days).
The month with the least rainy days is January (17.5 days).
Average daylight in September /
Average sunshine in September
Ulloa, Colombia
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in September: 10h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 42min).
Average sunshine days in September
Ulloa, Colombia
- Average sunshine days in September: 0.6 days
The month with the most sunshine days is January (11.3 days).
The months with the least sunshine days are June and October (0.5 days).
Average UV index in September
Ulloa, Colombia
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in September
Ulloa, Colombia
- Average cloud cover in September: 30
The month with the most cloud cover is April (Cloud cover 43).
The months with the least cloud cover are January and September (Cloud cover 30).
Average visibility in September
Ulloa, Colombia
- Average visibility in September: 9km
The months with the highest visibility are February, June, July, August and September (9km).
The months with the lowest visibility are January, March, April, May, October, November and December (8km).
