September weather forecastSmithborough, Ireland
September
Weather in September
September, the first month of the autumn in Smithborough, is also a moderate month, with an average temperature varying between 14.9°C (58.8°F) and 8.2°C (46.8°F).Temperature
As Smithborough welcomes September, the average high-temperature is noted at a moderate 14.9°C (58.8°F), closely aligning with the preceding month. In Smithborough, an average nighttime temperature of 8.2°C (46.8°F) is expected during September.Humidity
The average relative humidity in September in Smithborough is 90%.Rainfall
September is the month with the least rainfall. Rain falls for 11.2 days and accumulates 14mm (0.55") of precipitation.Snowfall
April through November are months without snowfall in Smithborough.Daylight
In September, the average length of the day is 12h and 42min.On the first day of September in Smithborough, sunrise is at 6:37 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:06 pm IST.
Sunshine
In September, the average sunshine in Smithborough is 4.8h.UV index
The average daily maximum UV index in September in Smithborough is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Smithborough, Ireland
- Average high temperature in September: 14.9°C
The warmest month (with the highest average high temperature) is July (17.2°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 8.2°C
The month with the highest average low temperature is July (9.9°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in September
Smithborough, Ireland
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is May (1015.6mbar).
The month with the lowest atmospheric pressure is November (1007.3mbar).
Average wind speed in September
Smithborough, Ireland
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is January (18.3km/h).
The calmest month (with the lowest average wind speed) is July (12.2km/h).
Average humidity in September
Smithborough, Ireland
- Average humidity in September: 90%
The months with the highest relative humidity are January, November and December (92%).
The month with the lowest relative humidity is April (86%).
Average rainfall in September
Smithborough, Ireland
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is August (34mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Smithborough, Ireland
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is September (11.2 days).
Average snowfall in September
Smithborough, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Smithborough, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.1 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
Smithborough, Ireland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 4h and 48min
The month with the most sunshine is June (Average sunshine: 6h and 6min).
The months with the least sunshine are January, February and October (Average sunshine: 3h and 24min).
Average sunshine days in September
Smithborough, Ireland
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is October (12.9 days).
The month with the least sunshine days is July (7 days).
Average UV index in September
Smithborough, 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, October, November and December (UV index 2).
Average cloud cover in September
Smithborough, Ireland
- Average cloud cover in September: 69
The month with the most cloud cover is August (Cloud cover 73).
The month with the least cloud cover is April (Cloud cover 62).
Average visibility in September
Smithborough, Ireland
- Average visibility in September: 7km
The month with the highest visibility is March (9km).
The months with the lowest visibility are July, August and September (7km).
