September weather forecastKnockoura, Ireland
September
Weather in September
September, the first month of the autumn in Knockoura, is still a refreshing month, with an average temperature ranging between max 15.5°C (59.9°F) and min 11.5°C (52.7°F).Temperature
Knockoura, Ireland, notes an average high-temperature of a moderate 15.5°C (59.9°F) in September, displaying minor variation from August. Throughout September, Knockoura observes a steady low-temperature average of 11.5°C (52.7°F), reflecting a minor dip from daytime highs.Humidity
July through September, with an average relative humidity of 86%, are the most humid months.Rainfall
In Knockoura, in September, it is raining for 16 days, with typically 54mm (2.13") of accumulated precipitation. Throughout the year, there are 224 rainfall days, and 816mm (32.13") of precipitation is accumulated.Snowfall
May through November are months without snowfall.Daylight
In Knockoura, Ireland, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 6:53 am and sunset at 8:26 pm. On the last day of September, in Knockoura, Ireland, sunrise is at 7:40 am and sunset at 7:19 pm IST.
Sunshine
In Knockoura, the average sunshine in September is 5.9h.UV index
The months with the highest UV index in Knockoura are May through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Knockoura, Ireland
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is February (8.4°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is July (12.7°C).
The coldest months (with the lowest average low temperature) are February and March (5.4°C).
Average pressure in September
Knockoura, Ireland
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in September
Knockoura, Ireland
- Average wind speed in September: 18.8km/h
The windiest month (with the highest average wind speed) is December (25.7km/h).
The calmest month (with the lowest average wind speed) is July (16.2km/h).
Average humidity in September
Knockoura, Ireland
- Average humidity in September: 86%
The months with the highest relative humidity are July, August and September (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Knockoura, Ireland
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is December (106mm).
The driest month (with the least rainfall) is May (45mm).
Average rainfall days in September
Knockoura, Ireland
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is January (21.6 days).
The month with the least rainy days is September (16 days).
Average snowfall in September
Knockoura, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Knockoura, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.6 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
Knockoura, Ireland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 5h and 54min
The month with the most sunshine is June (Average sunshine: 7h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Knockoura, Ireland
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is April (11.5 days).
The month with the least sunshine days is February (7 days).
Average UV index in September
Knockoura, Ireland
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Knockoura, Ireland
- Average cloud cover in September: 58
The months with the most cloud cover are January and December (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 54).
Average visibility in September
Knockoura, Ireland
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
