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Weather in Dublin in October (Need-to-Knows)

Weather in Dublin in October (Need-to-Knows)

The weather in Dublin in October tends to be cool and crisp.

But, as we hammer home in every guide that mentions the weather in Dublin, it can be very unpredictable.

The LTA (Long Term Average) temperature in Dublin in October 10.3°C/50.54°F with rainfall measuring 79.0mm.

Below, you’ll discover everything you know, from rainfall in October in Dublin to lots more.

Some quick need-to-knows about the weather in Dublin 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 Dublin in October:

1. The season

September, October and November are fall in Dublin. 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 Dublin. 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 LTA (Long Term Average) temperature in Dublin in October 10.3°C/50.54°F with rainfall measuring 79.0mm.

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 Dublin, but at a glance there are heaps of festivals in Ireland running in this month and there’s endless things to do in Dublin to choose from.

The average temperature in Dublin in October

The average temperature in Dublin 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 Dublin in October weather data is via Met Eireann – the Irish Meteorological Service.

A comparison of October weather in Dublin in recent years

County202220212020
Dublin12.0°C/53.6°F11.9°C/53.42°F9.5°C/49.1°F
Galway11.7°C/53.06°F11.5°C/52.7°F9.7°C/49.96°F
Cork13.1°C/55.58°F12.4°C/54.32°F11.0°C/51.8°F
Kerry13.2°C/55.76°F12.4°C/54.32°F11.3°C/52.34°F

The LTA (Long Term Average) temperature in Dublin in October 10.3°C/50.54°F with rainfall measuring 79.0mm.

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 Dublin in October is fairly steady across the different years and in the various counties.

Rain in Dublin in October

County202220212020
Dublin106.879.880.6
Galway199.3164.0168.0
Cork175.4187.094.5
Kerry255.9264.9228.1

We get asked ‘Does in rain in Dublin in October?’ quite a bit. The answer is yes, yes it does (see our guide on what to wear in Dublin 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 Dublin, usually the west coast, get more rainfall than the east coast. This can be seen in the figures in the table above.

FAQs about the weather in Dublin in October

We’ve had a lot of questions over the years asking about everything from ‘Is the weather in fall in Dublin bad?’ to ‘Does it rain during fall in Dublin?’.

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 Dublin in October?

The Weather in Dublin in October tens to be cool and crisp. The LTA (Long Term Average) temperature in Dublin in October 10.3°C/50.54°F with rainfall measuring 79.0mm.

Does it rain a lot in Dublin 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 79.0mm in Dublin and 128.9mm in Kerry.

What is the average temperature in Dublin in October?

The LTA (Long Term Average) temperature in Dublin in October 10.3°C/50.54°F with rainfall measuring 79.0mm.

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