Weather in September in Shannon
| < September > | ||
|---|---|---|
| Normal Max/ High Temperature | 17°C (63°F) | |
| Average Temperature | 14°C (56°F) | |
| Min/ Low Temperature | 10°C (50°F) | |
| Normal Precipitation | 82mm (3.2in) | |
| Number of Wet Days (probability of rain on a day) | 19 (63%) | |
| Average Sunlight per day | 03h 34' | |
| Average Daylight per day | 12h 37' | |
| Sunny (Cloudy) Daylight Hours | 29% (71%) | |
| Sun altitude at solar noon on the 21st day. | 37.9° | |
- The average temperature in Shannon in September is mild at 13.5 °C (56.3 °F).
- Afternoons can be very mild with average high temperatures reaching 17.2 °C (63 °F).
- Overnight temperatures are generally quite mild with an average low of 10.1 °C (50.2 °F).
- In September the variation/ range of daily average temperatures is 7.1 °C (12.8 °F).
- Precipitation averages for September are high with 82mm (3.2 in) recorded across 19 days.
- The skies in Shannon are somewhat dreary with on balance merely 3h 34' of brilliant sunlight daily.
- The shortest day is 11h 36' long and the longest day is 13h 38' long with an average length of 12h 37'.
- There are approximately 8h 48' per day when the sun is occluded by cloud, haze, fog etc.
- It is sunny approximately 28.9% of daylight hours and cloudy 71.1% of daylight hours.
Weather Trend Graph for September in Shannon, Ireland
