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
As August transitions into September, Ballyglass records an average high-temperature of a still refreshing 15.3°C (59.5°F), showing a gentle shift from the preceding month. Ballyglass reports a consistent average low-temperature of 9°C (48.2°F) throughout September nights.Humidity
The average relative humidity in September is 89%.Rainfall
April and September are months with the least rain when the rain falls for 21.3 days and typically aggregates up to 51mm (2.01") of rain.Snowfall
In Ballyglass, snow does not fall in May through October.Daylight
In Ballyglass, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:26 pm. On the last day of September, sunrise is at 7:37 am and sunset at 7:15 pm IST.
Sunshine
The average sunshine in September is 5h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Ballyglass have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Ballyglass have in September?
What is the UV index intensity in September?
Average temperature in September
Ballyglass, Ireland
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (10.5°C).
The coldest month (with the lowest average low temperature) is February (2.5°C).
Average pressure in September
Ballyglass, Ireland
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007.2mbar).
Average wind speed in September
Ballyglass, Ireland
- Average wind speed in September: 14.8km/h
The windiest month (with the highest average wind speed) is January (19.7km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).
Average humidity in September
Ballyglass, Ireland
- Average humidity in September: 89%
The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is April (84%).
Average rainfall in September
Ballyglass, Ireland
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is August (96mm).
The driest months (with the least rainfall) are April and September (51mm).
Average rainfall days in September
Ballyglass, Ireland
- Average rainfall days in September: 21.3 days
The month with the highest number of rainy days is August (27.8 days).
The month with the least rainy days is February (17 days).
Average snowfall in September
Ballyglass, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (43mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ballyglass, Ireland
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (3.8 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
Ballyglass, 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 0min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Ballyglass, Ireland
- Average sunshine days in September: 4.5 days
The month with the most sunshine days is December (8.5 days).
The month with the least sunshine days is August (1.1 days).
Average UV index in September
Ballyglass, 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
Ballyglass, 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
Ballyglass, Ireland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April and December (9km).
The month with the lowest visibility is July (7km).
