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
Ballybofey registers an average high-temperature of a mild 14.5°C (58.1°F) at the commencement of September, closely related to the preceding month. During the month of September, the temperature in Ballybofey generally drops to a low average of 8.4°C (47.1°F).Humidity
In September, the average relative humidity in Ballybofey is 89%.Rainfall
In Ballybofey, during September, the rain falls for 20.3 days and regularly aggregates up to 42mm (1.65") of precipitation. Throughout the year, there are 240.4 rainfall days, and 703mm (27.68") of precipitation is accumulated.Snowfall
In Ballybofey, Ireland, snow does not fall in May through October.Daylight
In Ballybofey, the average length of the day in September is 12h and 43min.On the first day of the month, sunrise is at 6:39 am and sunset at 8:22 pm. On the last day of September, in Ballybofey, Ireland, sunrise is at 7:32 am and sunset at 7:09 pm IST.
Sunshine
The average sunshine in September is 4.6h.UV index
In Ballybofey, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 suggests this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Ballybofey?
What is the average humidity in September in Ballybofey?
How many days does it rain in September in Ballybofey?
When it does not snow in Ballybofey?
How many hours of daylight does Ballybofey have in September?
When are sunrise and sunset in September in Ballybofey?
How long on average sun shines in September in Ballybofey?
How high is the UV index in September in Ballybofey?
Average temperature in September
Ballybofey, Ireland
- Average high temperature in September: 14.5°C
The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 8.4°C
The month with the highest average low temperature is July (9.9°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in September
Ballybofey, Ireland
- Average pressure in September: 1013.8mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is November (1006.8mbar).
Average wind speed in September
Ballybofey, Ireland
- Average wind speed in September: 13.1km/h
The windiest month (with the highest average wind speed) is January (17.8km/h).
The calmest month (with the lowest average wind speed) is July (11.5km/h).
Average humidity in September
Ballybofey, Ireland
- Average humidity in September: 89%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is April (84%).
Average rainfall in September
Ballybofey, Ireland
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is August (81mm).
The driest month (with the least rainfall) is April (39mm).
Average rainfall days in September
Ballybofey, Ireland
- Average rainfall days in September: 20.3 days
The month with the highest number of rainy days is August (25.6 days).
The month with the least rainy days is February (15.8 days).
Average snowfall in September
Ballybofey, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (51mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ballybofey, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ballybofey, Ireland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in September: 4h and 4min
The month with the most sunshine is June (Average sunshine: 6h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Ballybofey, Ireland
- Average sunshine days in September: 5.6 days
The month with the most sunshine days is November (9.8 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in September
Ballybofey, Ireland
- Average UV index in September: 3
The month with the highest UV index is 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
Ballybofey, Ireland
- Average cloud cover in September: 69
The month with the most cloud cover is August (Cloud cover 74).
The month with the least cloud cover is April (Cloud cover 61).
Average visibility in September
Ballybofey, Ireland
- Average visibility in September: 7km
The month with the highest visibility is March (9km).
The months with the lowest visibility are July, August and September (7km).
