Month by month
| Month | Afternoon | Sea | Rain | Verdict |
|---|---|---|---|---|
| January | 8.3 °C | — | 13 days | Unfavourable season |
| February | 9.1 °C | — | 13 days | Unfavourable season |
| March | 10.1 °C | — | 14 days | Unfavourable season |
| April | 11.6 °C | — | 12 days | Unfavourable season |
| May | 14.9 °C | — | 12 days | Possible, with trade-offs |
| June | 17.6 °C | — | 13 days | Possible, with trade-offs |
| July | 19.1 °C | — | 15 days | Possible, with trade-offs |
| August | 18.9 °C | — | 14 days | Possible, with trade-offs |
| September | 16.9 °C | — | 13 days | Possible, with trade-offs |
| October | 14.1 °C | — | 14 days | Possible, with trade-offs |
| November | 10.8 °C | — | 13 days | Unfavourable season |
| December | 9.5 °C | — | 15 days | Unfavourable season |
Nearby in January
Before you go
Three things to check once you have picked your dates.
Entry
No visa needed. No passport is legally required under the Common Travel Area, but some airlines and ferry operators require a valid passport as ID.
For a British passport, per the UK Foreign Office on 4 September 2026. Rules change: check before booking.
Safety
No specific restrictions
Usual precautions apply.
Official advice updated 4 September 2026
Health
Vaccines · hepatitis B if you are not already vaccinated; hepatitis A depending on activities and areas visited. Routine vaccines up to date (measles in particular).
Yellow fever · No yellow fever locally, vaccine not recommended. No entry requirement.
Malaria · None.
Per the CDC (page reviewed 25 August 2026); see a travel clinic a few weeks before departure.
Beau Fixe is not a safety or health authority. These notes summarise dated public texts and link to their source: France Diplomatie (Licence Ouverte 2.0), Foreign, Commonwealth & Development Office (gov.uk, Open Government Licence v3.0), Centers for Disease Control and Prevention (Source: CDC). Only the competent authorities are authoritative.
FAQ
Can you swim in Dublin in January?
Dublin is not a seaside destination (no sea data).
How hot is Dublin in January?
Expect 8.3°C in the afternoon and 3.7°C at night, averaged over the last 10 years.
Does it rain a lot in Dublin in January?
Around 13 days with rain (≥ 1 mm) in the month — 40% of days.