September weather forecastTunnagh, Ireland
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Tunnagh, Ireland, with temperature in the range of an average high of 15.3°C (59.5°F) and an average low of 9°C (48.2°F).Temperature
September's onset records a minor alteration in the average high-temperature to a still refreshing 15.3°C (59.5°F) from August's 16.5°C (61.7°F). During September, the nighttime temperature in Tunnagh, Ireland, averages to a chilly 9°C (48.2°F).Humidity
The average relative humidity in September is 89%.Rainfall
The months with the least rainfall in Tunnagh are April and September Rain falls for 21.3 days and accumulates 51mm (2.01") of rain.Snowfall
May through October are months without snowfall in Tunnagh.Daylight
In Tunnagh, the average length of the day in September is 12h and 42min.On the first day of September in Tunnagh, sunrise is at 6:42 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:11 pm IST.
Sunshine
In September, the average sunshine in Tunnagh is 5h.UV index
The average daily maximum UV index in September in Tunnagh is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tunnagh, Ireland
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (10.5°C).
The coldest month (with the lowest average low temperature) is February (2.5°C).
Average pressure in September
Tunnagh, Ireland
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007.2mbar).
Average wind speed in September
Tunnagh, Ireland
- Average wind speed in September: 14.8km/h
The windiest month (with the highest average wind speed) is January (19.7km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).
Average humidity in September
Tunnagh, Ireland
- Average humidity in September: 89%
The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is April (84%).
Average rainfall in September
Tunnagh, Ireland
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is August (96mm).
The driest months (with the least rainfall) are April and September (51mm).
Average rainfall days in September
Tunnagh, Ireland
- Average rainfall days in September: 21.3 days
The month with the highest number of rainy days is August (27.8 days).
The month with the least rainy days is February (17 days).
Average snowfall in September
Tunnagh, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (43mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Tunnagh, Ireland
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (3.8 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
Tunnagh, 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 30min).
- Average sunshine in September: 5h and 0min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Tunnagh, Ireland
- Average sunshine days in September: 4.5 days
The month with the most sunshine days is December (8.5 days).
The month with the least sunshine days is August (1.1 days).
Average UV index in September
Tunnagh, 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, November and December (UV index 2).
Average cloud cover in September
Tunnagh, Ireland
- Average cloud cover in September: 66
The months with the most cloud cover are July and August (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 60).
Average visibility in September
Tunnagh, Ireland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April and December (9km).
The month with the lowest visibility is July (7km).





