Ireland Dublin Weather in October — Climate Guide
October in Dublin is moderate
October is moderate for Dublin.
October turns properly autumnal — cooler, wetter, and grayer, averaging 14°C/8°C, with the parks in fall color and the days shortening fast (the clocks go back at the end of the month, bringing dark early evenings).
The weather is changeable and increasingly damp, so a good waterproof and warm layers matter. There are still crisp, bright autumn days, but more rain than the summer months.
Travel score
Dublin October Weather Stats
Avg High
14°C
Avg Low
8°C
Rainy Days
13
80mm total
Sunshine
3.2h
Daily avg
Humidity
83%
damp
UV Index
2
Low
Wind
16 km/h
Gusts 34
Crowds
Moderate
At attractions
October Sunrise & Sunset
Air Quality
PM2.5
9 μg/m³
PM10
17 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
12°C
Nighttime
5°C
Humidity and wind affect how the actual temperature feels.
Wind
16 km/h
Max gust 34 km/h
Activities Recommended for October
October Travel Pros & Cons
Pros
- Bram Stoker / Halloween festival atmosphere
- Shoulder-season value and quieter city
- Autumn color in the parks
- Good mix of indoor and crisp outdoor days
Cons
- Cooler, wetter, and grayer
- Days shorten sharply (clocks back)
- More rain than summer
- Changeable weather
October Events & Festivals
- Bram Stoker Festival (around Halloween) — Dublin's Dracula author celebrated
- Halloween / Samhain (Oct 31) — a festival of Celtic origin
- October bank holiday (last Monday)
- Clocks go back (late October) — earlier evenings
Dublin in October — Full Picture
October turns properly autumnal — cooler, wetter, and grayer, averaging 14°C/8°C, with the parks in fall color and the days shortening fast (the clocks go back at the end of the month, bringing dark early evenings).
The weather is changeable and increasingly damp, so a good waterproof and warm layers matter. There are still crisp, bright autumn days, but more rain than the summer months.
Crowds and prices ease into a comfortable shoulder range — better value and a quieter city than peak season. It's a good time for indoor Dublin (museums, the Guinness Storehouse, pubs) balanced with brisk park and coastal walks.
Halloween has Celtic roots in the festival of Samhain, and Dublin leans into it — most famously the Bram Stoker Festival around Halloween, celebrating the Dublin-born author of Dracula with tours, theatre, and events. A characterful, atmospheric time to visit.
Note: pack for cool, wet autumn and early darkness. The end of the month feels much darker once the clocks change.
What to Wear & What to Pack
Autumn proper — cool and wetter at around 14°C/8°C, with a big day-night swing. A waterproof jacket, sweater or fleece, and layers; waterproof shoes. Days shorten sharply (clocks back late Oct).
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
12.3°C
5.7°C
11/mo
Summer (Jun·Jul·Aug)
19°C
11.7°C
11/mo
Autumn (Sep·Oct·Nov)
Current13.7°C
7.7°C
12.3/mo
Winter (Dec·Jan·Feb)
8°C
3°C
12.3/mo
Dublin Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 8° | 3° | 13d·65mm | 1.8h | 85% | 1 | Quiet | Low season | |
| 8° | 3° | 11d·50mm | 2.6h | 84% | 1 | Quiet | Low season | |
| 10° | 4° | 11d·55mm | 3.5h | 81% | 2 | Busy | Peak | |
| 12° | 5° | 11d·55mm | 5.2h | 78% | 3 | Moderate | Shoulder | |
| May (Best) | 15° | 8° | 11d·60mm | 6h | 77% | 4 | Busy | Peak |
| June (Best) | 18° | 11° | 11d·65mm | 6h | 76% | 5 | Very busy | Peak |
| July (Best) | 20° | 12° | 11d·55mm | 5.5h | 76% | 5 | Very busy | Peak |
| August (Best) | 19° | 12° | 11d·70mm | 5h | 78% | 4 | Very busy | Peak |
| 17° | 10° | 11d·65mm | 4.2h | 80% | 3 | Busy | Peak | |
| 14° | 8° | 13d·80mm | 3.2h | 83% | 2 | Moderate | Shoulder | |
| 10° | 5° | 13d·75mm | 2h | 85% | 1 | Quiet | Low season | |
| 8° | 3° | 13d·75mm | 1.6h | 86% | 1 | Busy | Peak |
View Other Months
Dublin October Hotel Picks
Frequently Asked Questions
Is October a good time to visit Dublin?
Dublin in October is moderate. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Dublin in October?
Dublin October averages a high of 14°C and a low of 8°C.
Does it rain much in Dublin in October?
Dublin October averages 80mm of rainfall over about 13 rainy days.
What should I wear in Dublin in October?
Autumn proper — cool and wetter at around 14°C/8°C, with a big day-night swing. A waterproof jacket, sweater or fleece, and layers; waterproof shoes. Days shorten sharply (clocks back late Oct).
What time are sunrise and sunset in Dublin in October?
Dublin October sunrise is 07:50 and sunset is 18:30, with 10h 40min of daylight.
What's the air quality like in Dublin in October?
Dublin October air quality (AQI) averages 28, rated Good. PM2.5 averages 9μg/m³.
What activities are recommended in Dublin in October?
In October, Dublin is great for Bram Stoker Festival (around Halloween), Guinness Storehouse + Gravity Bar, Free museums + atmospheric pubs.
Is October peak season in Dublin?
Dublin October crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Dublin
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.