The weather in Ireland in October tends to be cool and crisp.
But, as we hammer home in every guide that mentions the weather in Ireland, it can be very unpredictable.
The average temperature in Ireland in October see average average highs of 13°C/55°F and average lows of 6°C/42°F
Below, you’ll discover everything you know, from rainfall in October in Ireland to lots more.
Some quick need-to-knows about the weather in Ireland in October
OK, let’s get you up-to-speed nice and quickly. The points below will give you a quick insight into the weather in Ireland in October:
1. The season
September, October and November are fall in Ireland. October is the ‘Shoulder Season’ from a tourist perspective – i.e. the season between peak and off-season.
2. The weather in general
October is, in my opinion, one of the best months to visit Ireland. There’s orange leaves on the trees and covering the ground and the weather is often cool, dry and crisp. There are exceptions (see below).
3. Average temperatures
The average temperature in Ireland in October sees average highs of 13°C/55°F and average lows of 6°C/42°F
4. Still good daylight hours
At the start of the month the sun rises at 07:33 and sets at 19:09. For those of you planning your, Ireland itinerary this gives you plenty of daylight to work with.
5. Lots to do
We go into the various things to see and do in our guide to October in Ireland, but at a glance there are heaps of festivals in Ireland running in this month and there’s endless things to do in Ireland to choose from.
The average temperature in Ireland in October
The average temperature in Ireland in October is pretty good, as you can see from the graphic above, with average highs of 13°C/55°F and average lows of 6°C/42°F.
The LTA (Long Term Average) temperature for the month in Dublin, for example, is 10.3°C/50.54°F, which is pretty mild.
Now, this can vary quite a bit year to year, so I’ll pop in a chart comparing recent years from different weather stations.
Please note that all of the Ireland in October weather data is via Met Eireann – the Irish Meteorological Service.
A comparison of October weather in Ireland in recent years
The table above will give you a sense of the average temperature in Dublin in October along with Galway, Cork and Kerry over the last number of years.
As you can see, the average temperature in Ireland in October is fairly steady across the different years and in the various counties.
Rain in Ireland in October
We get asked ‘Does in rain in Ireland in October?’ quite a bit. The answer is yes, yes it does (see our guide on what to wear in Ireland in October).
However, it rains considerably less during October than it does in the other months of the year.
Now, it’s also worth noting that certain parts of Ireland, usually the west coast, get more rainfall than the east coast. This can be seen in the figures in the table above.
Weather in Dublin in October
The weather in Dublin in October tends to be fairly similar to the weather in many other parts of the country (flick back up to the tables above to compare).
For example, last year, in 2022, the average temperature in Dublin in October was 12.0°C/53.6°F
When we look at the rainy weather in Dublin in October last year, the capital recorded 106.8
See our more detailed guide to the weather in Dublin in October here.
FAQs about the weather in Ireland in October
We’ve had a lot of questions over the years asking about everything from ‘Is the weather in fall in Ireland bad?’ to ‘Does it rain during fall in Ireland?’.
In the section below, we’ve popped in the most FAQs that we’ve received. If you have a question that we haven’t tackled, ask away in the comments section below.
What is the weather like in Ireland in October?
The Weather in Ireland in October tens to be cool and crisp with average highs of 13°C/55°F and average lows of 6°C/42°F. Do note that we have had both cooler and warmer Octobers in the past.
Does it rain a lot in Ireland in October?
Using LTAs (Long Term Averages) as provided by Met Eireann, the Irish Meteorological Service, we can see that the LTA of rainfall (in mm) is 79.0 in Dublin and 128.9 in Kerry.
What is the average temperature in Ireland in October?
The average temperature in Ireland in October sees average highs of 13°C/55°F and average lows of 6°C/42°F.
Keith O’Hara has lived in Ireland for 34 years and has spent most of the last 10 years creating what is now The Irish Road Trip guide. Over the years, the website has published thousands of meticulously researched Ireland travel guides, welcoming 30 million+ visitors along the way. In 2022, the Irish Road Trip team published the world’s largest collection of Irish Road Trip itineraries. Keith lives in Dublin with his dog Toby and finds writing in the 3rd person minus craic altogether.