September weather forecastKeadeen, Ireland
September
Weather in September
The first month of the autumn, September, is also a moderate month in Keadeen, Ireland, with an average temperature fluctuating between 8.4°C (47.1°F) and 15.5°C (59.9°F).Temperature
Keadeen starts September with an average high-temperature of a still refreshing 15.5°C (59.9°F), hinting at a minimal fluctuation from August. September's average low-temperature reading in Keadeen, Ireland, settles at a chilly 8.4°C (47.1°F).Humidity
The average relative humidity in September in Keadeen is 90%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 17mm (0.67") of precipitation is accumulated. Throughout the year, in Keadeen, there are 167.6 rainfall days, and 283mm (11.14") of precipitation is accumulated.Snowfall
In Keadeen, Ireland, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 40min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:14 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:05 pm IST.
Sunshine
The average sunshine in September is 5.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Keadeen, Ireland
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in September: 8.4°C
The month with the highest average low temperature is July (10.6°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in September
Keadeen, Ireland
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.5mbar).
Average wind speed in September
Keadeen, Ireland
- Average wind speed in September: 13.9km/h
The windiest month (with the highest average wind speed) is February (19km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Keadeen, Ireland
- Average humidity in September: 90%
The months with the highest relative humidity are November and December (92%).
The month with the lowest relative humidity is April (86%).
Average rainfall in September
Keadeen, Ireland
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is November (41mm).
The driest month (with the least rainfall) is March (16mm).
Average rainfall days in September
Keadeen, Ireland
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is September (11.3 days).
Average snowfall in September
Keadeen, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is November (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Keadeen, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Keadeen, Ireland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 5h and 54min
The month with the most sunshine is May (Average sunshine: 6h and 24min).
The months with the least sunshine are February, November and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Keadeen, Ireland
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is November (13.9 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Keadeen, 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, March, November and December (UV index 2).
Average cloud cover in September
Keadeen, Ireland
- Average cloud cover in September: 62
The month with the most cloud cover is July (Cloud cover 68).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in September
Keadeen, Ireland
- Average visibility in September: 7km
The months with the highest visibility are February, March and December (9km).
The months with the lowest visibility are July, August and September (7km).
