Killarney in september: average Weather, Temperature and Climate
Weather in Killarney in september 2025
The weather in Killarney in the month of september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
bad weather
Weather at 6am
50°F
Fog
46% of time
19%
12%
10%
Weather at 12pm
61°F
Cloudy
42% of time
21%
18%
13%
Weather at 6pm
58°F
Cloudy
30% of time
26%
16%
16%
Weather at 3am
50°F
40%
18%
15%
14%
Evolution of daily average temperature and precipitation in Killarney in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Killarney in september.
The climate of Killarney in september is bad
the weather in Killarney in september is wet (with 3.5in of precipitation over 4 days). The weather is better from the previous month since in august it receives an average of 3.6in of precipitation over 5 days.
The climate is relatively cool in that area this month, but it is tolerable when dressing hot. Temperatures are up to 63°F. In the morning the temperature drops to 50°F. Thus, the mean temperature average in september in Killarney is 56°F. These temperatures are far removed from those records observed in Killarney in september with a maximum record of 79°F in 2021 and a minimum record of 32°F in 2010. You can expect to have about 8 days with temperatures up to 65°F, or 27% of time.
Day length in Killarney in september is 12:39. Sunrise is at 06:13 and sets at 18:52.
With an unfavorable weather, this month is not the best time to go in Killarney.
September: another location in Ireland?
If you want to go to Ireland in september, there are destinations with better weather than Killarney:
In september, Dublin, Cork, Ardmore, Dalkey Island, Rosslare and Tramore have good weather.
Finally, Galway, Belmullet, Connemara National Park, Dingle, Dundalk and Dungloe have a tolerable climate, but better than Killarney.
Seasonal average climate and temperature of Killarney in september
Check below seasonal norms These datas are generated from the weather statements of the last years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 56°F | ||||
| Highest temperature | 63°F | ||||
| Lowest temperature | 50°F | ||||
| Highest record temperature | 79°F (2021) | ||||
| Lowest record temperature | 32°F (2010) | ||||
| Number of days at +65°F | 8 day(s) (27%) | ||||
| Wind | |||||
| Wind speed | 19km/h | ||||
| Wind temperature | 49°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.5in | ||||
| Number of days with rainfall | 4 day(s) (14%) | ||||
| Record daily rainfall | 2.2in (2015) | ||||
| Other climate data | |||||
| Humidity | 96% | ||||
| Visibility | 7.22km | ||||
| Cloud cover | 69% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 9 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:13 | ||||
| Time of sunset | 18:52 | ||||
| Length of day | 12:39 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | bad | ||||
How was the weather last september?
Here is the day by day recorded weather in Killarney in september 2024:
58°F to 63°F
54°F to 58°F
56°F to 59°F
54°F to 58°F
54°F to 59°F
58°F to 67°F
58°F to 65°F
56°F to 59°F
52°F to 58°F
56°F to 58°F
52°F to 56°F
52°F to 56°F
49°F to 58°F
58°F to 59°F
58°F to 61°F
58°F to 61°F
56°F to 65°F
52°F to 65°F
54°F to 67°F
54°F to 65°F
54°F to 63°F
54°F to 59°F
56°F to 61°F
54°F to 56°F
49°F to 56°F
50°F to 54°F
52°F to 54°F
52°F to 56°F
54°F to 56°F
54°F to 58°F
Map: other cities in Ireland in september
Cities near Killarney:
| Killorglin in september | bad weather |
| Kenmare in september | bad weather |
| Tralee in september | tolerable weather |
| Listowel in september | tolerable weather |
| Newcastle West in september | tolerable weather |
| Dingle in september | tolerable weather |
| Castletownbere in september | tolerable weather |
| Skibbereen in september | good weather |
| Mallow in september | good weather |
| Valentia in september | tolerable weather |
| Clonakilty in september | good weather |
| Kilkee in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Killarney
perfect weather
good
tolerable
bad
very bad
Weather data for Killarney in september:
Weather data for Killarney for september are derived from an average of the weather forecast since 2009 in Killarney. There is a margin of error and these forecasts are to be considered as general information only. The weather in Killarney can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Killarney.