September weather forecastKnocknagree, Ireland
September weather for Knocknagree, Ireland: September, the first month of the autumn in Knocknagree, is still a mild month, with an average temperature ranging between min 8.7°C (47.7°F) and max 15.5°C (59.9°F). September temperatures in Knocknagree, Ireland, vary between a high-temperature of 15.5°C (59.9°F) and a low-temperature of 8.7°C (47.7°F).
September
Weather in September
September, the first month of the autumn in Knocknagree, is still a mild month, with an average temperature ranging between min 8.7°C (47.7°F) and max 15.5°C (59.9°F).Temperature
Knocknagree starts September with an average high-temperature of a moderate 15.5°C (59.9°F), a minor shift from August's 16.7°C (62.1°F). An average low-temperature of 8.7°C (47.7°F) is recorded during the nights in September in Knocknagree.Humidity
The average relative humidity in September in Knocknagree, Ireland, is 89%.Rainfall
September is the month with the least rainfall. Rain falls for 13.6 days and accumulates 28mm (1.1") of precipitation.Snowfall
In Knocknagree, snow does not fall in April through October.Daylight
The average length of the day in September in Knocknagree is 12h and 39min.On the first day of the month, sunrise is at 6:49 am and sunset at 8:23 pm. On the last day of September, sunrise is at 7:37 am and sunset at 7:16 pm IST.
Sunshine
The average sunshine in September is 4.6h.UV index
In September, the average daily maximum UV index in Knocknagree is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Knocknagree, Ireland
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (17.1°C).
The month with the lowest average high temperature is January (7.4°C).
- Average low temperature in September: 8.7°C
The month with the highest average low temperature is July (10.6°C).
The coldest month (with the lowest average low temperature) is March (2.8°C).
Average pressure in September
Knocknagree, 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 (1008.7mbar).
Average wind speed in September
Knocknagree, Ireland
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is February (18.6km/h).
The calmest month (with the lowest average wind speed) is July (12.2km/h).
Average humidity in September
Knocknagree, Ireland
- Average humidity in September: 89%
The months with the highest relative humidity are January, October, November and December (90%).
The month with the lowest relative humidity is April (84%).
Average rainfall in September
Knocknagree, Ireland
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is December (59mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Knocknagree, Ireland
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is January (18.8 days).
The month with the least rainy days is September (13.6 days).
Average snowfall in September
Knocknagree, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (10mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Knocknagree, Ireland
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and March (1.3 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
Knocknagree, Ireland
- Average daylight in September: 12h and 36min
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: 4h and 36min
The month with the most sunshine is June (Average sunshine: 5h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Knocknagree, Ireland
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is September (12.1 days).
The month with the least sunshine days is January (8.7 days).
Average UV index in September
Knocknagree, Ireland
- Average UV index in September: 3
The months with the highest UV index are May, June and August (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
Knocknagree, Ireland
- Average cloud cover in September: 71
The months with the most cloud cover are July and August (Cloud cover 74).
The month with the least cloud cover is April (Cloud cover 63).
Average visibility in September
Knocknagree, Ireland
- Average visibility in September: 7km
The month with the highest visibility is February (9km).
The months with the lowest visibility are July, August and September (7km).
