Dublin in september: average Weather, Temperature and Climate
Weather in Dublin in september 2025
The weather in Dublin in september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
54°F
Partly Cloudy
28% of time
26%
26%
9%
Weather at 12pm
61°F
Cloudy
36% of time
34%
20%
8%
Weather at 6pm
59°F
Partly Cloudy
34% of time
27%
26%
12%
Weather at 3am
54°F
30%
28%
15%
14%
Evolution of daily average temperature and precipitation in Dublin in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Dublin in september.
The climate of Dublin in september is good
During the months between autumn and summer, temperatures begin to fall during the month of September. The weather becomes gentle once again as the precipitation gradually withdraws. For this reason, the weather in Dublin throughout September is still acceptable for outdoor activities. It is enough to simply cover well in order to feel comfortable.
Dublin at the Beginning of September
At the beginning of the month, a pleasantly comfortable atmosphere characterizes the days. To this is added a beautiful sunshine which, despite its alternation with the rainy weather and the cloudy days, contributes to the quality of the climatic conditions. As a result, this period lends itself even more to tourist visits.
Dublin in the Middle of September
The climatic conditions of the middle of the month make it possible to spend pleasant moments outside. However, because of the lower temperatures, one must think of wearing warm clothes in order to feel comfortable and fully enjoy the sun - especially as the rains gradually withdraw.
Dublin at the End of September
Following the decrease in precipitation, the climate throughout September in Dublin is improving a little bit. However instead of beautiful sunny days, expect cloudy days - with furtive apparitions of the sun. One can nevertheless enjoy the good moments decorated with a gentle and pleasant atmosphere.
Seasonal average climate and temperature of Dublin in september
Check below seasonal norms These datas are compiled from the weather statements of the last years of september.
September | |||||
Outside temperature | |||||
Average temperature | 58°F | ||||
Highest temperature | 61°F | ||||
Lowest temperature | 54°F | ||||
Highest record temperature | 74°F (2021) | ||||
Lowest record temperature | 36°F (2020) | ||||
Number of days at +65°F | 6 day(s) (20%) | ||||
Sea temperature | |||||
Average sea temperature | 59°F | ||||
Lowest sea temperature | 58°F | ||||
Highest sea temperature | 60°F | ||||
Wind | |||||
Wind speed | 22km/h | ||||
Wind temperature | 50°F | ||||
Precipitation (rainfall) | |||||
Rainfall | 2.7in | ||||
Number of days with rainfall | 4 day(s) (13%) | ||||
Record daily rainfall | 1.5in (2021) | ||||
Other climate data | |||||
Humidity | 91% | ||||
Visibility | 9.24km | ||||
Cloud cover | 50% | ||||
UV index | 4 | ||||
Daily sunshine hours | 11 | ||||
Sunrise and sunset | |||||
Time of sunrise | 05:59 | ||||
Time of sunset | 18:40 | ||||
Length of day | 12:41 | ||||
Our opinion about the weather in september | |||||
Our opinion at whereandwhen.net | good |
How was the weather last september?
Here is the day by day recorded weather in Dublin in september 2024:
58°F to 65°F
56°F to 61°F
50°F to 61°F
52°F to 58°F
54°F to 59°F
59°F to 63°F
59°F to 63°F
59°F to 65°F
49°F to 61°F
54°F to 58°F
50°F to 56°F
43°F to 54°F
43°F to 56°F
52°F to 63°F
59°F to 61°F
52°F to 63°F
54°F to 63°F
54°F to 61°F
54°F to 59°F
56°F to 61°F
56°F to 59°F
58°F to 59°F
56°F to 58°F
52°F to 59°F
47°F to 54°F
49°F to 56°F
47°F to 52°F
47°F to 56°F
52°F to 54°F
50°F to 54°F
Map: other cities in Ireland in september
Cities near Dublin:
Dún Laoghaire in september | good weather |
Malahide in september | good weather |
Dalkey Island in september | good weather |
Bray in september | good weather |
Greystones in september | good weather |
Skerries in september | good weather |
Balbriggan in september | good weather |
Naas in september | tolerable weather |
Wicklow Mountains National Park in september | tolerable weather |
Laytown in september | good weather |
Droichead Nua in september | tolerable weather |
Drogheda in september | good weather |
Click over cities on the map for information about the weather in september.
Weather data for Dublin in september:
Weather data for Dublin for september are derived from an average of the weather forecast since 2009 in Dublin. There is a margin of error and these forecasts are to be considered as general information only. The weather in Dublin 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 Dublin.