September weather forecastBallybrit, Ireland
September
Weather in September
The first month of the autumn, September, is also a moderate month in Ballybrit, Ireland, with temperature in the range of an average high of 15.5°C (59.9°F) and an average low of 9.9°C (49.8°F).Temperature
As September unfolds, the average high-temperature reaches a mild 15.5°C (59.9°F), hinting at a slight fluctuation from the previous month. In September, the temperature in Ballybrit, Ireland, drops to an average of 9.9°C (49.8°F) at night.Humidity
January, July through December, with an average relative humidity of 87%, are the most humid months.Rainfall
In Ballybrit, Ireland, in September, during 17.4 rainfall days, 40mm (1.57") of precipitation is typically accumulated. In Ballybrit, during the entire year, the rain falls for 235.1 days and collects up to 619mm (24.37") of precipitation.Snowfall
April through November are months without snowfall in Ballybrit.Daylight
In Ballybrit, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:25 pm. On the last day of September, in Ballybrit, sunrise is at 7:36 am and sunset at 7:14 pm IST.
Sunshine
In September, the average sunshine is 5.4h.UV index
In Ballybrit, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in September leads to these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ballybrit, Ireland
- Average high temperature in September: 15.5°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 (7.9°C).
- Average low temperature in September: 9.9°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 (3.3°C).
Average pressure in September
Ballybrit, Ireland
- Average pressure in September: 1014.8mbar
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
Ballybrit, Ireland
- Average wind speed in September: 16.4km/h
The windiest months (with the highest average wind speed) are February and December (22.2km/h).
The calmest month (with the lowest average wind speed) is July (14.8km/h).
Average humidity in September
Ballybrit, Ireland
- Average humidity in September: 87%
The months with the highest relative humidity are January, July, August, September, October, November and December (87%).
The months with the lowest relative humidity are March and April (83%).
Average rainfall in September
Ballybrit, Ireland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in September
Ballybrit, Ireland
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is August (23.2 days).
The month with the least rainy days is April (17.3 days).
Average snowfall in September
Ballybrit, 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
Ballybrit, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (0.9 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
Ballybrit, Ireland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 5h and 24min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Ballybrit, Ireland
- Average sunshine days in September: 7.2 days
The month with the most sunshine days is March (9.4 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in September
Ballybrit, Ireland
- Average UV index in September: 3
The months with the highest UV index are May, June and July (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
Ballybrit, Ireland
- Average cloud cover in September: 62
The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in September
Ballybrit, 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).





