Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September records an average high-temperature of a mild 15.3°C (59.5°F), closely related to the 16.8°C (62.2°F) observed in August. In September, Killashee's temperature tends to fall to an average low of 8.5°C (47.3°F) during the night.Humidity
In September, the average relative humidity in Killashee is 90%.Rainfall
In September, in Killashee, the rain falls for 11.1 days. Throughout September, 17mm (0.67") of precipitation is accumulated. Throughout the year, there are 164.1 rainfall days, and 284mm (11.18") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Killashee, Ireland, the average length of the day in September is 12h and 41min.On the first day of September in Killashee, sunrise is at 6:41 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:10 pm IST.
Sunshine
The average sunshine in September in Killashee is 5.2h.UV index
In Killashee, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the temperature in September in Killashee?
What is the average humidity in September in Killashee?
How many days does it rain in September in Killashee?
When it does not snow in Killashee?
What is the average length of the day in September in Killashee?
When is the sunrise / sunset in September in Killashee?
How many hours of sunshine does Killashee have in September?
What is the UV index intensity in September in Killashee?
Average temperature in September
Killashee, Ireland
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 8.5°C
The months with the highest average low temperature are July and August (10.3°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in September
Killashee, 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 (1007.6mbar).
Average wind speed in September
Killashee, Ireland
- Average wind speed in September: 13.9km/h
The windiest month (with the highest average wind speed) is January (18.8km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in September
Killashee, Ireland
- Average humidity in September: 90%
The month with the highest relative humidity is December (92%).
The month with the lowest relative humidity is April (85%).
Average rainfall in September
Killashee, Ireland
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is August (36mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Killashee, Ireland
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is September (11.1 days).
Average snowfall in September
Killashee, Ireland
- Average snowfall in September: 0mm
The months with the highest snowfall are January and November (10mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Killashee, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 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
Killashee, Ireland
- Average daylight in September: 12h and 4min
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 1min
The month with the most sunshine is June (Average sunshine: 6h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Killashee, Ireland
- Average sunshine days in September: 13 days
The month with the most sunshine days is March (13.9 days).
The month with the least sunshine days is August (7.9 days).
Average UV index in September
Killashee, 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
Killashee, Ireland
- Average cloud cover in September: 66
The months with the most cloud cover are July and August (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 60).
Average visibility in September
Killashee, Ireland
- Average visibility in September: 8km
The months with the highest visibility are February, March and December (9km).
The months with the lowest visibility are July and August (7km).
Killashee, Ireland
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