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
September
Weather in September
Temperature
The transition from August to September sees an average high-temperature of a mild 15.9°C (60.6°F), indicating a minor variance from the prior month. The month of September records an average low-temperature of 10.5°C (50.9°F) in Castlemagner, Ireland.Humidity
In September, the average relative humidity in Castlemagner is 86%.Rainfall
In Castlemagner, Ireland, in September, it is raining for 15.3 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, there are 198 rainfall days, and 586mm (23.07") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Castlemagner.Daylight
In Castlemagner, the average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:47 am and sunset at 8:22 pm. On the last day of September, in Castlemagner, sunrise is at 7:35 am and sunset at 7:14 pm IST.
Sunshine
The average sunshine in September in Castlemagner, Ireland, is 6.3h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Castlemagner in September?
What is the average humidity in September in Castlemagner?
How many days does it rain in September in Castlemagner?
When it does not snow in Castlemagner?
How many hours of daylight does Castlemagner have in September?
When are sunrise and sunset in September in Castlemagner?
How many hours of sunshine does Castlemagner have in September?
How high is the UV index in September in Castlemagner?
Average temperature in September
Castlemagner, Ireland
- Average high temperature in September: 15.9°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 (8.3°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in September
Castlemagner, Ireland
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in September
Castlemagner, Ireland
- Average wind speed in September: 17.5km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest months (with the lowest average wind speed) are June and July (16.1km/h).
Average humidity in September
Castlemagner, Ireland
- Average humidity in September: 86%
The months with the highest relative humidity are October and December (87%).
The months with the lowest relative humidity are February, March and April (84%).
Average rainfall in September
Castlemagner, Ireland
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is March (33mm).
Average rainfall days in September
Castlemagner, Ireland
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is February (13.5 days).
Average snowfall in September
Castlemagner, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is March (6mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Castlemagner, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 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
Castlemagner, Ireland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Castlemagner, Ireland
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in September
Castlemagner, Ireland
- Average UV index in September: 3
The months with the highest UV index are June, July 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
Castlemagner, Ireland
- Average cloud cover in September: 53
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
Castlemagner, Ireland
- Average visibility in September: 9km
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (9km).
