Castletownbere in september: average Weather, Temperature and Climate
Weather in Castletownbere in september 2025
The weather in Castletownbere in september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather
Weather at 6am
56°F
Cloudy
27% of time
24%
18%
16%
Weather at 12pm
61°F
Cloudy
27% of time
26%
20%
19%
Weather at 6pm
59°F
Partly Cloudy
29% of time
26%
21%
16%
Weather at 3am
56°F
25%
24%
17%
16%
Evolution of daily average temperature and precipitation in Castletownbere in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Castletownbere in september.
The climate of Castletownbere in september is tolerable
The climate in september in Castletownbere is wet (with 5.7in of rainfall over 7 days). It should be noted an improvement from the previous month since in august it receives an average of 5.7in of rainfall over 9 days.
The climate is fairly cold in this location this month, but it is tolerable when dressing hot. The thermometer averaged maximum of 61°F. In the morning the temperature drops to 56°F. Thus, the mean temperature average in september in Castletownbere is 58°F. Note that these seasonal averages are in contrast with those observed in Castletownbere in september with a maximum record of 76°F in 2021 and a minimum record of 43°F in 2010. You can plan to have about 5 days with temperatures above 65°F, or 17% of time.
On this month of september, day length in Castletownbere is generally 12:40. Sunrise is at 06:14 and sets at 18:54.
With proper weather, september is okay (but not good) to go in that area.
September: another location in Ireland?
If you want to go to Ireland in september, there are destinations with better weather than Castletownbere:
In september, Dublin, Cork, Ardmore, Dalkey Island, Rosslare and Tramore have good weather.
Seasonal average climate and temperature of Castletownbere in september
Check below seasonal norms These datas are set from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 58°F | ||||
| Highest temperature | 61°F | ||||
| Lowest temperature | 56°F | ||||
| Highest record temperature | 76°F (2021) | ||||
| Lowest record temperature | 43°F (2010) | ||||
| Number of days at +65°F | 5 day(s) (17%) | ||||
| Sea temperature | |||||
| Average sea temperature | 61°F | ||||
| Lowest sea temperature | 58°F | ||||
| Highest sea temperature | 64°F | ||||
| Wind | |||||
| Wind speed | 23km/h | ||||
| Wind temperature | 52°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 5.7in | ||||
| Number of days with rainfall | 7 day(s) (23%) | ||||
| Record daily rainfall | 3.6in (2015) | ||||
| Other climate data | |||||
| Humidity | 91% | ||||
| Visibility | 8.85km | ||||
| Cloud cover | 58% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:14 | ||||
| Time of sunset | 18:54 | ||||
| Length of day | 12:40 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Castletownbere in september 2024:
56°F to 63°F
52°F to 59°F
56°F to 61°F
54°F to 58°F
47°F to 61°F
52°F to 72°F
56°F to 68°F
58°F to 61°F
47°F to 59°F
56°F to 58°F
49°F to 56°F
50°F to 56°F
43°F to 56°F
56°F to 59°F
58°F to 63°F
52°F to 65°F
50°F to 67°F
49°F to 68°F
52°F to 70°F
54°F to 70°F
50°F to 67°F
50°F to 59°F
58°F to 65°F
52°F to 58°F
47°F to 56°F
43°F to 54°F
49°F to 54°F
47°F to 56°F
52°F to 56°F
54°F to 58°F
Map: other cities in Ireland in september
Cities near Castletownbere:
| Kenmare in september | bad weather |
| Valentia in september | tolerable weather |
| Skellig Islands in september | tolerable weather |
| Skibbereen in september | good weather |
| Killorglin in september | bad weather |
| Killarney in september | bad weather |
| Dingle in september | tolerable weather |
| Tralee in september | tolerable weather |
| Clonakilty in september | good weather |
| Listowel in september | tolerable weather |
| Kinsale in september | good weather |
| Cork in september | good weather |
Click over cities on the map for information about the weather in september.
Castletownbere
perfect weather
good
tolerable
bad
very bad
Weather data for Castletownbere in september:
Weather data for Castletownbere for september are derived from an average of the weather forecast since 2009 in Castletownbere. There is a margin of error and these forecasts are to be considered as general information only. The weather in Castletownbere 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 Castletownbere.