September weather forecastDunleer, Ireland
September
Weather in September
The first month of the autumn, September, is still a mild month in Dunleer, Ireland, with an average temperature fluctuating between 15.1°C (59.2°F) and 9°C (48.2°F).Temperature
September notes an average high-temperature of a mild 15.1°C (59.2°F), subtly differing from August's 17°C (62.6°F). Dunleer, in September, experiences an average temperature of 9°C (48.2°F) at night.Humidity
The average relative humidity in September is 89%.Rainfall
In Dunleer, in September, during 7 rainfall days, 10mm (0.39") of precipitation is typically accumulated. Throughout the year, in Dunleer, there are 120.2 rainfall days, and 161mm (6.34") of precipitation is accumulated.Snowfall
In Dunleer, snow does not fall in April through November.Daylight
In September, the average length of the day in Dunleer is 12h and 41min.On the first day of the month, sunrise is at 6:35 am and sunset at 8:15 pm. On the last day of September, in Dunleer, sunrise is at 7:26 am and sunset at 7:04 pm IST.
Sunshine
The average sunshine in September in Dunleer is 5.6h.UV index
The average daily maximum UV index in September in Dunleer is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Exercise prevention - Warding off sunburn is urged. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dunleer, Ireland
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is July (10.7°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Dunleer, Ireland
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.7mbar).
Average wind speed in September
Dunleer, Ireland
- Average wind speed in September: 14.9km/h
The windiest month (with the highest average wind speed) is January (20.2km/h).
The calmest months (with the lowest average wind speed) are June and July (13km/h).
Average humidity in September
Dunleer, Ireland
- Average humidity in September: 89%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are March and April (85%).
Average rainfall in September
Dunleer, Ireland
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is June (21mm).
The driest month (with the least rainfall) is January (8mm).
Average rainfall days in September
Dunleer, Ireland
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is September (7 days).
Average snowfall in September
Dunleer, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Dunleer, 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 May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Dunleer, 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 30min).
- Average sunshine in September: 5h and 36min
The month with the most sunshine is June (Average sunshine: 6h and 42min).
The months with the least sunshine are February and October (Average sunshine: 3h and 42min).
Average sunshine days in September
Dunleer, Ireland
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in September
Dunleer, Ireland
- Average UV index in September: 3
The months with the highest UV index are June and August (UV index 4).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Dunleer, Ireland
- Average cloud cover in September: 61
The months with the most cloud cover are July and August (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in September
Dunleer, Ireland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).
