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Weather in September in Birr, Offaly

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< September >
 
Normal Max/ High Temperature 17°C (62°F)
 
Average Temperature 13°C (55°F)
 
Min/ Low Temperature 9°C (47°F)
 
Normal Precipitation 71mm (2.8in)
Number of Wet Days (probability of rain on a day) 13 (43%)
Average Sunlight per day 03:48
Average Daylight per day 12:38
Sunny (Cloudy) Daylight Hours 31% (69%)
Sun altitude at solar noon on the 21st day.
37.5°


  • The average temperature in Birr, Offaly in September is mild at 12.6 °C (54.68 °F).
  • Afternoons can be very mild with average high temperatures reaching 16.6 °C (61.9 °F).
  • Overnight temperatures are generally a little cool with an average low of 8.5 °C (47.3 °F).
  • The average daily temperature variation/ range in September is 8.1 °C (14.6 °F).
  • The weather in September is somewhat dry with occasional rain. Just 71mm (2.8in) of water descends across on average 13 days.
  • In September the heavens above Birr, Offaly are somewhat dreary with an average of a mere 3:48 of resplendent sunshine daily.
  • The shortest day is 11:36 long and the longest day is 13:40 long with an average length of 12:38.
  • There are approximately 8:34 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 30.7% of daylight hours and cloudy 69.3% of daylight hours.

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Weather Trend Graph for September in Birr, Offaly, Ireland

Graph of weather in Birr, Offaly in September

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