September weather forecastBarna, Ireland
September
Weather in September
September, the first month of the autumn in Barna, is also a moderate month, with an average temperature fluctuating between 15.5°C (59.9°F) and 9.9°C (49.8°F).Temperature
The average high-temperature during September is a still refreshing 15.5°C (59.9°F), almost matching the conditions of the preceding month. Barna observes an average low-temperature of 9.9°C (49.8°F) during September.Humidity
The months with the highest humidity in Barna are January, July through December, with an average relative humidity of 87%.Rainfall
In Barna, Ireland, in September, it is raining for 17.4 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, in Barna, Ireland, there are 235.1 rainfall days, and 619mm (24.37") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 40min.On the first day of the month, sunrise is at 6:47 am and sunset at 8:25 pm. On the last day of September, in Barna, sunrise is at 7:37 am and sunset at 7:15 pm IST.
Sunshine
In September, the average sunshine is 5.4h.UV index
In Barna, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Barna, Ireland
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (7.9°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is August (11.4°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in September
Barna, Ireland
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.7mbar).
Average wind speed in September
Barna, Ireland
- Average wind speed in September: 16.4km/h
The windiest months (with the highest average wind speed) are February and December (22.2km/h).
The calmest month (with the lowest average wind speed) is July (14.8km/h).
Average humidity in September
Barna, Ireland
- Average humidity in September: 87%
The months with the highest relative humidity are January, July, August, September, October, November and December (87%).
The months with the lowest relative humidity are March and April (83%).
Average rainfall in September
Barna, Ireland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in September
Barna, Ireland
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is August (23.2 days).
The month with the least rainy days is April (17.3 days).
Average snowfall in September
Barna, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Barna, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Barna, Ireland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 5h and 24min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Barna, Ireland
- Average sunshine days in September: 7.2 days
The month with the most sunshine days is March (9.4 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in September
Barna, Ireland
- Average UV index in September: 3
The months with the highest UV index are May, June and July (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
Barna, Ireland
- Average cloud cover in September: 62
The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in September
Barna, Ireland
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
