Cavan in september: average Weather, Temperature and Climate
Weather in Cavan in september 2025
The weather in Cavan in september comes from statistical datas on the past years. You can view the weather statistics for the whole 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
47% of time
28%
11%
8%
Weather at 12pm
59°F
Cloudy
49% of time
26%
11%
9%
Weather at 6pm
58°F
Cloudy
33% of time
26%
18%
13%
Weather at 3am
50°F
43%
17%
14%
13%
Evolution of daily average temperature and precipitation in Cavan in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Cavan in september.
The climate of Cavan in september is bad
the weather in Cavan in september is wet (with 2.1in of rainfall over 3 days). The weather is better from the previous month since in august it receives an average of 2.9in of rainfall over 4 days.
The climate is fairly cold in that area this month, but it is tolerable by dressing hot. The high seasonal norm is 61°F. In the morning the temperature drops to 50°F. Thus, the mean temperature average in september in Cavan is 56°F. These temperatures are far removed from those records observed in Cavan in the month of september with a maximum record of 76°F in 2021 and a minimum record of 29°F in 2010. You can expect to have about 6 days with temperatures over 65°F, or 20% of the month.
Day length in Cavan in september is 12:42. Sunrise is at 06:03 and sets at 18:45.
With an unfavorable weather, september is not the best time to go in this city.
September: another location in Ireland?
If you want to go to Ireland in september, there are destinations with better weather than Cavan:
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 Cavan.
Seasonal average climate and temperature of Cavan in september
Check below seasonal norms These statistics are generated from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 56°F | ||||
| Highest temperature | 61°F | ||||
| Lowest temperature | 50°F | ||||
| Highest record temperature | 76°F (2021) | ||||
| Lowest record temperature | 29°F (2010) | ||||
| Number of days at +65°F | 6 day(s) (20%) | ||||
| Wind | |||||
| Wind speed | 18km/h | ||||
| Wind temperature | 47°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.1in | ||||
| Number of days with rainfall | 3 day(s) (10%) | ||||
| Record daily rainfall | 1.2in (2010) | ||||
| Other climate data | |||||
| Humidity | 97% | ||||
| Visibility | 7.32km | ||||
| Cloud cover | 67% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:03 | ||||
| Time of sunset | 18:45 | ||||
| Length of day | 12:42 | ||||
| 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 Cavan in september 2024:
50°F to 67°F
54°F to 58°F
50°F to 59°F
49°F to 59°F
45°F to 65°F
52°F to 74°F
52°F to 74°F
54°F to 65°F
47°F to 59°F
50°F to 56°F
45°F to 52°F
40°F to 54°F
38°F to 49°F
52°F to 61°F
49°F to 61°F
47°F to 63°F
54°F to 68°F
47°F to 67°F
47°F to 68°F
47°F to 67°F
49°F to 65°F
47°F to 65°F
47°F to 63°F
49°F to 54°F
43°F to 54°F
41°F to 47°F
45°F to 52°F
41°F to 54°F
43°F to 54°F
49°F to 52°F
Map: other cities in Ireland in september
Cities near Cavan:
| Monaghan in september | bad weather |
| Longford in september | tolerable weather |
| Navan in september | tolerable weather |
| Dundalk in september | tolerable weather |
| Roscommon in september | tolerable weather |
| Drogheda in september | good weather |
| Athlone in september | tolerable weather |
| Ballyshannon in september | tolerable weather |
| Sligo in september | tolerable weather |
| Tullamore in september | tolerable weather |
| Bundoran in september | tolerable weather |
| Ballaghaderreen in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Cavan
perfect weather
good
tolerable
bad
very bad
Weather data for Cavan in september:
Weather data for Cavan for september are derived from an average of the weather forecast since 2009 in Cavan. There is a margin of error and these forecasts are to be considered as general information only. The weather in Cavan 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 Cavan.