September weather forecastKillarney, Ireland
September
Weather in September
September indicates the advent of autumn in Killarney, with the temperature slightly dropping from August and rainfall amounting to 117mm (4.61"). Less sunshine is seen this month, replicating the transition from summer to autumn. Amongst the falling leaves, the city exhibits an array of colors, sparking a different kind of beauty. Despite the start of colder weather, Killarney remains a place of interest for many.Temperature
Killarney marks the onset of September with an average high-temperature of a still enjoyable 16°C (60.8°F), subtly divergent from August's 18°C (64.4°F). Killarney's average low-temperature in September is measured at a cool 10°C (50°F).Rainfall
In Killarney, in September, it is raining for 19 days, with typically 117mm (4.61") of accumulated precipitation. Throughout the year, there are 235 rainfall days, and 1372mm (54.02") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:50 am and sunset at 8:24 pm. On the last day of September, sunrise is at 7:38 am and sunset at 7:17 pm IST.
Sunshine
The average sunshine in September is 4h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Killarney, Ireland
- Average high temperature in September: 16°C
The warmest months (with the highest average high temperature) are July and August (18°C).
The months with the lowest average high temperature are January and February (8°C).
- Average low temperature in September: 10°C
The months with the highest average low temperature are July and August (11°C).
The coldest months (with the lowest average low temperature) are January and February (3°C).
Average rainfall in September
Killarney, Ireland
- Average rainfall in September: 117mm
The wettest month (with the highest rainfall) is December (166mm).
The driest month (with the least rainfall) is June (74mm).
Average rainfall days in September
Killarney, Ireland
- Average rainfall days in September: 19 days
The months with the highest number of rainy days are January and December (23 days).
The months with the least rainy days are April and July (16 days).
Average daylight in September /
Average sunshine in September
Killarney, Ireland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 4h
The month with the most sunshine is May (Average sunshine: 6h).
The month with the least sunshine is December (Average sunshine: 1h).
Average UV index in September
Killarney, Ireland
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 0).
