Ireland in september: average Weather, Temperature and Climate, Where to go?
How is the climate in Ireland in september? Is it the perfect time to visit Cork and Birr? Check out weather datas and our advices here.
bad weather across 8% of the territory tolerable weather across 62% of the territory good weather across 31% of the territory
Weather in Ireland in september 2023
In this section, you have access to the weather forecast for september for most popular cities in Ireland. These datas are probabilities for september from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.
Average weather in september in Dublin
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%
Where to go in Ireland in september?
Where to go in Ireland in september: destination map
perfect weather
good
tolerable
bad
very bad
Where should you go in Ireland in september when it comes to the weather?
Remember:
The climate in Ireland in september ranges from good to tolerable depending on the region and city.
The climate throughout September in Ireland depends on the location of each locality. Thus, one will have favorable climatic conditions in the south, rainy days in the center and conditions barely favorable for the rest of the territory.
September in Malin Head and Northern Ireland
One will have the opportunity to enjoy several days of sunshine. Even if sometimes the sky is covered with clouds and the showers may occur at any moment.
September in Birr and Central Ireland
Not only is the weather refreshing, but the presence of rain also accentuates the poor quality of the weather in Ireland throughout September on the center of the island.
September in Dublin and the East Coast of Ireland
The climatic conditions of Dublin have improved because despite a discrete decrease in heat, the sunny days count many. One will spend pleasant moments here.
Septmber in Valentia and the South-west Coast of Ireland
Thanks to the mildness of the atmosphere and the regression of the showers, the climatic conditions in Valentia and its surroundings will allow to enjoy a comfortable climate.
Climate in Ireland in september
Climate in Dublin in september
In the month of september, the mean temperature in Dublin is 58°F (maximum temperature is 61°F and minimum temperature is 54°F). The climate is quite fresh in this city in the month of september, but it is tolerable when dressing warm. With 2.7in over 4 days, rainfall can happen for your stay. But this is reasonably and it will not be continuous.
With a correct weather, the month of september is okay (but not good month) for traveling in this city in Ireland.
| September | |||
| Average temperature | 58°F | ||
| Highest temperature | 61°F | ||
| Lowest temperature | 54°F | ||
| Sea temperature | 59°F | ||
| Rainfall | 2.7in | ||
| Number of days with rainfall | 4 day(s) (13%) | ||
| Humidity | 91% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 50% | ||
| Length of day | 12:41 | ||
| Our opinion at whereandwhen.net | good |
Climate in Cork in september
In the month of september, maximum temperature is 63°F and minimum temperature is 54°F (for an average temperature of 58°F). The climate is rather cool here in the month of september, but it is bearable when dressing hot. With 3.9in over 5 days, rainfall can happen during your holidays. But this is rather moderate and it is only of temporary showers.
With a correct weather, the month of september is okay (but not the best time) for traveling there in Ireland.
| September | |||
| Average temperature | 58°F | ||
| Highest temperature | 63°F | ||
| Lowest temperature | 54°F | ||
| Sea temperature | 61°F | ||
| Rainfall | 3.9in | ||
| Number of days with rainfall | 5 day(s) (17%) | ||
| Humidity | 93% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 52% | ||
| Length of day | 12:39 | ||
| Our opinion at whereandwhen.net | good |
Climate in Galway in september
In september, the mean temperature in Galway is 58°F (maximum temperature is 63°F and minimum temperature is 52°F). The climate is rather cold in that area in the month of september, but it is endurable by dressing warm. With 4.2in over 6 days, rainfall can happen for your vacations. But this is pretty reasonably and it will not be continuous.
With a correct climate, september is okay (but not good month) for traveling in Galway in Ireland.
| September | |||
| Average temperature | 58°F | ||
| Highest temperature | 63°F | ||
| Lowest temperature | 52°F | ||
| Sea temperature | 59°F | ||
| Rainfall | 4.2in | ||
| Number of days with rainfall | 6 day(s) (20%) | ||
| Humidity | 93% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 61% | ||
| Length of day | 12:41 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Achill Island in september
In the month of september, the mean temperature in Achill Island is 59°F (maximum temperature is 59°F and minimum temperature is 58°F). The climate is quite fresh here in september, but it is livable by dressing cosy. With 6.6in over 11 days, you risk getting wet slightly for your journey. But this is pretty reasonably and it is only of temporary showers.
With proper weather, the month of september is okay (but not the best time) for traveling in that area in Ireland.
| September | |||
| Average temperature | 59°F | ||
| Highest temperature | 59°F | ||
| Lowest temperature | 58°F | ||
| Sea temperature | 59°F | ||
| Rainfall | 6.6in | ||
| Number of days with rainfall | 11 day(s) (36%) | ||
| Humidity | 86% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 61% | ||
| Length of day | 12:43 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Aran Islands in september
In september, maximum temperature is 61°F and minimum temperature is 56°F (for an average temperature of 58°F). The climate is fairly cool in this city in this month, but it is tolerable when dressing cosy. With 5.5in over 9 days, rain may occur throughout your holidays. But this is rather moderate and it is only of temporary showers.
With a correct weather, the month of september is okay (but not good month) for traveling in this city in Ireland.
| September | |||
| Average temperature | 58°F | ||
| Highest temperature | 61°F | ||
| Lowest temperature | 56°F | ||
| Sea temperature | 59°F | ||
| Rainfall | 5.5in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 88% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 58% | ||
| Length of day | 12:41 | ||
| Our opinion at whereandwhen.net | tolerable |
All cities in Ireland in september
| Dublin in september | good weather |
| Cork in september | good weather |
| Galway in september | tolerable weather |
| Achill Island in september | tolerable weather |
| Aran Islands in september | tolerable weather |
| Ardmore in september | good weather |
| Ballycastle in september | tolerable weather |
| Belmullet in september | tolerable weather |
| Birr in september | tolerable weather |
| Bundoran in september | tolerable weather |
| Burren National Park in september | tolerable weather |
| Cashel in september | tolerable weather |
| Castletownbere in september | tolerable weather |
| Connemara National Park in september | tolerable weather |
| Dalkey Island in september | good weather |
| Derrybeg in september | tolerable weather |
| Donegal in september | tolerable weather |
| Dunfanaghy in september | tolerable weather |
| Dungloe in september | tolerable weather |
| Cliffs of Moher in september | tolerable weather |
| Gleann Cholm Cille in september | tolerable weather |
Weather data for Ireland in september:
Weather data for Ireland in september is derived from an average of the weather forecast since 2009 in Ireland. There is a margin of error and these forecasts are to be considered as general information only. The weather in Ireland can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Ireland.