September weather forecastTullyallen, Ireland
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Tullyallen, Ireland, with an average temperature ranging between max 15.1°C (59.2°F) and min 9°C (48.2°F).Temperature
September records an average high-temperature of a moderate 15.1°C (59.2°F), indicating a minor variation from the preceding month. An average nighttime temperature of 9°C (48.2°F) is noted during the month of September.Humidity
In September, the average relative humidity is 89%.Rainfall
In Tullyallen, during September, the rain falls for 7 days and regularly aggregates up to 10mm (0.39") of precipitation. In Tullyallen, during the entire year, the rain falls for 120.2 days and collects up to 161mm (6.34") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Tullyallen, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 6:35 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:04 pm IST.
Sunshine
In September, the average sunshine is 5.6h.UV index
In Tullyallen, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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
Tullyallen, 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).
