What to Wear in Dublin
Ireland · 6 monthly packing guides
Dublin runs Irish-Celtic heritage — Aran sweater (the Aran Islands hand-knit wool with bobble-and-cable patterns), Avoca (Wicklow 1723, the heritage Irish wool — multiple Dublin flagships), Sphere One (Irish cashmere), Magee 1866 (Donegal handwoven tweed since 1866), Foxford Woollen Mills (1892 Mayo wool), Aran Sweater Market, Carolyn Donnelly The Edit, Louise Kennedy (Irish luxury), Lainey Keogh knitwear. Trinity College + Book of Kells, Dublin Castle, Christ Church Cathedral, St Patrick's Cathedral, Phoenix Park (Europe's largest enclosed urban park, larger than New York's Central Park), Temple Bar (cultural-tourist quarter). Bloomsday (June 16) is the heritage James Joyce literary celebration with re-traced Ulysses pub-crawl. Atlantic-coast cool keeps Dublin mild and wet year-round; pack the Mackintosh-equivalent rain shell.
Choose your month below to match your layers and shoes to the weather. Across the months covered, average daily lows reach 2°C / 36°F in January; average highs reach 21°C / 70°F in July.
Compare Dublin by month
Monthly averages help compare packing needs; check the forecast before departure. Only months with published guides are listed. See the source notes below for station and measurement differences. Scroll across the table to see all weather details on a small screen.
| Month | Average low | Average high | Rain days | Daylight |
|---|---|---|---|---|
| January packing guide | 2°C / 36°F | 8°C / 46°F | 18 | 8h 5m |
| May packing guide | 7°C / 45°F | 16°C / 61°F | 13 | 16h 5m |
| June packing guide | 10°C / 50°F | 19°C / 66°F | 12 | 17h |
| July packing guide | 12°C / 54°F | 21°C / 70°F | 13 | 16h 30m |
| August packing guide | 12°C / 54°F | 21°C / 70°F | 13 | 15h |
| December packing guide | 3°C / 37°F | 9°C / 48°F | 18 | 7h 30m |
Choose your Dublin packing list
Dublin in January: 8°C / 46°F afternoons, 2°C / 36°F nights, about 18 wet days, the windiest month at the airport, and TradFest from 20 to 24 January.
In this capsule: Navy diamond-quilted jacket, cord collar; Bottle green hooded waterproof jacket, check lining; Wine fine merino crew.
Dublin in May is Irish-Celtic late spring — 16°C / 61°F afternoons, 7°C / 45°F mornings, 13 rain days, the Trinity College cobble walking weather peak.
In this capsule: Aran sweater (Aran Islands heritage hand-knit wool); Cotton/merino-wool blend long-sleeve base; Packable rain shell — Patagonia, Magee 1866 wax-cotton.
Dublin in June is Irish-Celtic early summer — 19°C / 66°F afternoons, 10°C / 50°F mornings, 12 rain days, daylight 17h.
In this capsule: Aran sweater or mid-weight wool sweater; Cotton/merino-wool blend long-sleeve base; Packable rain shell — Patagonia, Magee 1866 wax-cotton.
Dublin in July is peak Irish summer — 21°C / 70°F afternoons, 12°C / 54°F nights, 13 rain days. Mild by Mediterranean standards.
In this capsule: Aran sweater or mid-weight wool sweater; Cotton/merino-wool blend long-sleeve base; Packable rain shell — Patagonia, Magee 1866 wax-cotton.
Dublin in August is late Irish summer — 21°C / 70°F afternoons, 12°C / 54°F nights, 13 rain days. Heritage Week mid-August.
In this capsule: Aran sweater or mid-weight wool sweater; Cotton/merino-wool blend long-sleeve base; Packable rain shell.
Dublin in December: 9°C / 48°F afternoons, 3°C / 37°F nights, about 18 wet days, and two days at Christmas when the trains stop.
In this capsule: Charcoal hooded insulated parka, hip length; Cream Aran crew with cable and diamond panels; Dark indigo straight-leg jeans.
Climate sources by month
These credits follow the source recorded on each monthly guide. Climate figures inform the packing advice; outfit combinations and illustrations are editorial suggestions.
- January: NOAA NCEI · Dublin Airport · 1991–2020 normalsMet Éireann operates the station; NOAA NCEI computed this month's figures from its 03969099999 global-summary-of-the-day record, 29 complete Januaries. Rain days count days with 0.01 in (0.25 mm) or more; about 14 of them reach 1 mm.
- May: Met Éireann · Dublin Airport · 1991–2020 normals
- June: Met Éireann · Dublin Airport · 1991–2020 normals
- July: Met Éireann · Dublin Airport · 1991–2020 normals
- August: Met Éireann · Dublin Airport · 1991–2020 normals
- December: NOAA NCEI · Dublin Airport · 1991–2020 normalsMet Éireann operates the station; NOAA NCEI computed this month's figures from its 03969099999 global-summary-of-the-day record, 30 complete Decembers. Rain days count days with 0.01 in (0.25 mm) or more; about 14 of them reach 1 mm.
Frequently asked questions
Start with your travel month. The 6 published guides cover January, May, June, July, August, December. Compare the average low as well as the high: among these months, January has the lowest average low at 2°C / 36°F, while July has the highest average high at 21°C / 70°F. For a trip spanning two months, read both lists before deciding which layers to bring.
No. They are monthly climate averages for planning, not temperatures promised for a particular day or hour. Check the local forecast close to departure and adjust your layers and rain protection. The source, station and averaging period are listed for each month where recorded; different stations or rain-day definitions can affect comparisons.
No. Treat the capsule as a set of clothing functions: walking shoes, a base outfit, weather protection and any change for dinner or a venue's dress code. Start with equivalents you own. Adjust quantities to your trip length and laundry access; the illustrations are outfit suggestions, not a shopping requirement.