September weather forecastBallymascanlan, Ireland
September
Weather in September
September, the first month of the autumn in Ballymascanlan, is still a refreshing month, with an average temperature ranging between max 15°C (59°F) and min 10.5°C (50.9°F).Temperature
September notes an average high-temperature of a mild 15°C (59°F), subtly differing from August's 16.8°C (62.2°F). Night temperatures during September stabilize at an average of 10.5°C (50.9°F), closely mirroring the daytime temperatures.Humidity
July through September and December, with an average relative humidity of 87%, are the most humid months.Rainfall
In Ballymascanlan, during September, the rain falls for 10.8 days and regularly aggregates up to 26mm (1.02") of precipitation. In Ballymascanlan, during the entire year, the rain falls for 163.9 days and collects up to 339mm (13.35") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 6:34 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:03 pm IST.
Sunshine
The average sunshine in September is 6.3h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 3 translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ballymascanlan, Ireland
- Average high temperature in September: 15°C
The warmest months (with the highest average high temperature) are July and August (16.8°C).
The month with the lowest average high temperature is January (7.2°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (3.4°C).
Average pressure in September
Ballymascanlan, Ireland
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is May (1015.8mbar).
The month with the lowest atmospheric pressure is November (1007.8mbar).
Average wind speed in September
Ballymascanlan, Ireland
- Average wind speed in September: 17.7km/h
The windiest month (with the highest average wind speed) is January (23.9km/h).
The calmest months (with the lowest average wind speed) are June and July (14.8km/h).
Average humidity in September
Ballymascanlan, Ireland
- Average humidity in September: 87%
The months with the highest relative humidity are July, August, September and December (87%).
The months with the lowest relative humidity are March, April and May (84%).
Average rainfall in September
Ballymascanlan, Ireland
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is November (45mm).
The driest month (with the least rainfall) is May (18mm).
Average rainfall days in September
Ballymascanlan, Ireland
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in September
Ballymascanlan, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Ballymascanlan, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Ballymascanlan, Ireland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 6h and 18min
The month with the most sunshine is June (Average sunshine: 7h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Ballymascanlan, Ireland
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is August (10.9 days).
Average UV index in September
Ballymascanlan, Ireland
- Average UV index in September: 3
The months with the highest UV index are June and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Ballymascanlan, Ireland
- Average cloud cover in September: 54
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in September
Ballymascanlan, Ireland
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
