September weather forecastCoolaney, Ireland
September
Weather in September
September, the first month of the autumn in Coolaney, is still a mild month, with an average temperature ranging between min 10.4°C (50.7°F) and max 14.7°C (58.5°F).Temperature
The onset of September marks an average high-temperature of a moderate 14.7°C (58.5°F), hardly differing from August's 16.2°C (61.2°F). A mean low-temperature of 10.4°C (50.7°F) is a distinguishing feature of September, indicating a slight dip from daytime highs.Humidity
In September, the average relative humidity is 86%.Rainfall
In Coolaney, in September, during 18.6 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Coolaney, during the entire year, the rain falls for 232.9 days and collects up to 592mm (23.31") of precipitation.Snowfall
In Coolaney, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 42min.On the first day of the month, sunrise is at 6:43 am and sunset at 8:25 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:12 pm IST.
Sunshine
The average sunshine in September in Coolaney is 5.2h.UV index
In Coolaney, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coolaney, Ireland
- Average high temperature in September: 14.7°C
The warmest month (with the highest average high temperature) is July (16.3°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in September: 10.4°C
The month with the highest average low temperature is July (11.7°C).
The coldest month (with the lowest average low temperature) is February (3.7°C).
Average pressure in September
Coolaney, Ireland
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is November (1007mbar).
Average wind speed in September
Coolaney, Ireland
- Average wind speed in September: 18km/h
The windiest month (with the highest average wind speed) is January (24.3km/h).
The calmest month (with the lowest average wind speed) is July (14.8km/h).
Average humidity in September
Coolaney, Ireland
- Average humidity in September: 86%
The months with the highest relative humidity are July and August (87%).
The month with the lowest relative humidity is April (82%).
Average rainfall in September
Coolaney, Ireland
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is August (72mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Coolaney, Ireland
- Average rainfall days in September: 18.6 days
The month with the highest number of rainy days is August (22.8 days).
The month with the least rainy days is April (16.5 days).
Average snowfall in September
Coolaney, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Coolaney, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2 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
Coolaney, 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: 5h and 12min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Coolaney, Ireland
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is May (10.1 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in September
Coolaney, Ireland
- Average UV index in September: 3
The months with the highest UV index are May and June (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
Coolaney, Ireland
- Average cloud cover in September: 63
The month with the most cloud cover is August (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in September
Coolaney, Ireland
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
