What October feels like in Dublin
Mid-autumn arrives in Dublin with October. Expect cool, jacket-on afternoons — comfortable for a long walk. The gap between afternoon and night is small, so nights are cool and the temperature hardly changes after dark. The air is damp, which makes cool temperatures feel colder, particularly in wind.
Rain in Dublin in October
Dry days are the exception, with rain on about one day in 2. A rainy day brings about 6.7 mm (0.3 in) on average — steady rain rather than a passing shower. The yearly figure is similar, around 5.8 mm per wet day. It is among the three wettest months of the year.
Daylight and sunshine in October
Mid-month, Dublin gets 10 h 42 min of daylight, from sunrise near 7:50 am to sunset near 6:32 pm. Days are getting shorter: 2 h 5 min less daylight than in mid-September. The sun is out for roughly 57% of those daylight hours, so sun and cloud share the day.
How October compares to the rest of the year
In Dublin's temperature order, October sits as the 6th warmest month. Against September, the average high is 2.8°C (5°F) lower, with 8 mm more rain. Temperatures keep falling into November. By November, typical highs are 10.4°C (50.7°F).
Who October suits
- Sightseeing: a good fit — daytime temperatures are fine for walking around.
- Parks & outdoor: less ideal — too cool to sit outside for long.
- Beach: less ideal — the sea air is too cool.
Tips for visiting Dublin in October
Rain Protection
Keep a small umbrella in your bag and wear shoes that cope with puddles.
Light Jacket
Bring a sweater or light coat for cool afternoons.
Quick questions
How warm is Dublin in October?
Expect around 14°C (57.2°F) in the afternoon and 9.2°C (48.6°F) at night, which most visitors would call cool.
Does it rain a lot in Dublin in October?
It does: about 13 rainy days bring roughly 87 mm, so plan some indoor options.
What should I wear in Dublin in October?
The numbers point to rain protection and a light jacket. Evenings feel similar to the day, so the same clothes work from morning to night.
Is October or November better for visiting Dublin?
October, clearly: it ranks #6 of 12 among Dublin's months, against #10 for the other. November is cooler.