September weather forecastClonbur, Ireland
September
Weather in September
The first month of the autumn, September, is still a mild month in Clonbur, Ireland, with temperature in the range of an average high of 15°C (59°F) and an average low of 10.2°C (50.4°F).Temperature
Clonbur, Ireland, experiences a transition to a still refreshing 15°C (59°F) in average high-temperatures with the arrival of September, not greatly differing from August's 16.3°C (61.3°F). Clonbur documents an average low-temperature of 10.2°C (50.4°F) for the nights of September.Humidity
The average relative humidity in September is 86%.Rainfall
In September, the rain falls for 9.1 days. Throughout September, 13mm (0.51") of precipitation is accumulated. In Clonbur, during the entire year, the rain falls for 120.7 days and collects up to 199mm (7.83") of precipitation.Snowfall
In Clonbur, snow does not fall in April through November.Daylight
In Clonbur, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:47 am and sunset at 8:26 pm. On the last day of September, in Clonbur, sunrise is at 7:38 am and sunset at 7:16 pm IST.
Sunshine
The average sunshine in September in Clonbur is 4.9h.UV index
In Clonbur, the average daily maximum UV index in September is 3. 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 daily high UV index of 3 in September translates into this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clonbur, Ireland
- Average high temperature in September: 15°C
The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is January (7.7°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is August (11.4°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average pressure in September
Clonbur, Ireland
- Average pressure in September: 1014.4mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1007.2mbar).
Average wind speed in September
Clonbur, Ireland
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is January (22.7km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in September
Clonbur, Ireland
- Average humidity in September: 86%
The months with the highest relative humidity are July and October (87%).
The month with the lowest relative humidity is April (82%).
Average rainfall in September
Clonbur, Ireland
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is November (25mm).
The driest month (with the least rainfall) is May (8mm).
Average rainfall days in September
Clonbur, Ireland
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is November (11.7 days).
The month with the least rainy days is May (7.8 days).
Average snowfall in September
Clonbur, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Clonbur, Ireland
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and March (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Clonbur, Ireland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 4h and 54min
The month with the most sunshine is June (Average sunshine: 7h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Clonbur, Ireland
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is April (18.9 days).
The month with the least sunshine days is November (14.1 days).
Average UV index in September
Clonbur, Ireland
- Average UV index in September: 3
The months with the highest UV index are May and June (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Clonbur, Ireland
- Average cloud cover in September: 66
The month with the most cloud cover is August (Cloud cover 70).
The month with the least cloud cover is April (Cloud cover 60).
Average visibility in September
Clonbur, Ireland
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).





