September weather forecastClonmany, Ireland
September
Weather in September
The first month of the autumn, September, is still a mild month in Clonmany, Ireland, with temperature in the range of an average low of 11.9°C (53.4°F) and an average high of 14.6°C (58.3°F).Temperature
The beginning of September reveals an average high-temperature of a still mild 14.6°C (58.3°F), showing minimal deviation from the previous month. Clonmany navigates through September with a barely noticeable decrease in temperature at night, stabilizing at a cool 11.9°C (53.4°F).Humidity
In Clonmany, the average relative humidity in September is 83%.Rainfall
In Clonmany, in September, it is raining for 18.8 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, in Clonmany, there are 228.8 rainfall days, and 561mm (22.09") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Clonmany.Daylight
In September, the average length of the day is 12h and 43min.On the first day of September in Clonmany, sunrise is at 6:36 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:07 pm IST.
Sunshine
In September, the average sunshine in Clonmany is 5.9h.UV index
The months with the highest UV index are May, June, August and September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 during September translates into the following guidance:
Undertake protective steps - Recommendations to avoid sunburn are issued. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clonmany, Ireland
- Average high temperature in September: 14.6°C
The warmest month (with the highest average high temperature) is August (15.4°C).
The months with the lowest average high temperature are January and February (7.8°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).
Average pressure in September
Clonmany, Ireland
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is November (1006.3mbar).
Average wind speed in September
Clonmany, Ireland
- Average wind speed in September: 25.5km/h
The windiest month (with the highest average wind speed) is January (32.8km/h).
The calmest months (with the lowest average wind speed) are June and July (19.5km/h).
Average humidity in September
Clonmany, Ireland
- Average humidity in September: 83%
The months with the highest relative humidity are July and August (85%).
The months with the lowest relative humidity are March and November (79%).
Average rainfall in September
Clonmany, Ireland
- Average rainfall in September: 38mm
The wettest months (with the highest rainfall) are August and November (59mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Clonmany, Ireland
- Average rainfall days in September: 18.8 days
The month with the highest number of rainy days is December (22.8 days).
The month with the least rainy days is April (14.9 days).
Average snowfall in September
Clonmany, Ireland
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (10mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Clonmany, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Clonmany, Ireland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 5h and 54min
The month with the most sunshine is June (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Clonmany, Ireland
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is May (11.5 days).
The month with the least sunshine days is November (5.1 days).
Average UV index in September
Clonmany, Ireland
- Average UV index in September: 4
The months with the highest UV index are May, June, August and September (UV index 4).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in September
Clonmany, Ireland
- Average cloud cover in September: 59
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in September
Clonmany, Ireland
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (10km).
The months with the lowest visibility are January and July (9km).
