September weather forecastSummerhill, Ireland
September
Weather in September
September, the first month of the autumn in Summerhill, is still a mild month, with temperature in the range of an average high of 15.7°C (60.3°F) and an average low of 9°C (48.2°F).Temperature
As Summerhill welcomes September, the average high-temperature is noted at a mild 15.7°C (60.3°F), closely aligning with the preceding month. During the month of September, Summerhill experiences a steady low-temperature average of 9°C (48.2°F).Humidity
The average relative humidity in September in Summerhill is 89%.Rainfall
In Summerhill, in September, it is raining for 13.5 days, with typically 23mm (0.91") of accumulated precipitation. In Summerhill, during the entire year, the rain falls for 171.5 days and collects up to 274mm (10.79") of precipitation.Snowfall
April through November are months without snowfall in Summerhill.Daylight
In September, the average length of the day is 12h and 41min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:16 pm. On the last day of September, in Summerhill, sunrise is at 7:27 am and sunset at 7:05 pm IST.
Sunshine
In September, the average sunshine in Summerhill is 5.8h.UV index
The average daily maximum UV index in September in Summerhill 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 maximum daily UV index of 3 in September converts into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Summerhill, Ireland
- Average high temperature in September: 15.7°C
The warmest month (with the highest average high temperature) is July (17.7°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Summerhill, Ireland
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1008.2mbar).
Average wind speed in September
Summerhill, Ireland
- Average wind speed in September: 14.7km/h
The windiest month (with the highest average wind speed) is January (20.3km/h).
The calmest months (with the lowest average wind speed) are June and July (13.3km/h).
Average humidity in September
Summerhill, Ireland
- Average humidity in September: 89%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are March and April (85%).
Average rainfall in September
Summerhill, Ireland
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are January, April and October (16mm).
Average rainfall days in September
Summerhill, Ireland
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Summerhill, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (15mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Summerhill, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Summerhill, 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 48min
The month with the most sunshine is April (Average sunshine: 6h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Summerhill, Ireland
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Summerhill, 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
Summerhill, Ireland
- Average cloud cover in September: 60
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
Summerhill, Ireland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).
