Dublin weather by month & the best time to visit
🇮🇪 Ireland · city break · oceanic / maritime climate
The best time to visit Dublin is July — its sunniest month (Sunshine Score 60/100), with August close behind. Dublin averages about 1,488 hours of sunshine a year. Daytime highs around 18°C / 64°F and roughly 80 mm of rain in July.
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- Sun hours / year
- 1,488
- Sunniest month
- July
- Peak score
- 60/100
- Rain / year
- 982 mm
- Midday UV at peak
- 5 (moderate)
- Sea at warmest
- 17°C / 63°F
- Population
- 1.1M
- Elevation
- 65 m
When is the best time to visit Dublin?
For sunshine, the best time to visit Dublin is July, then August. The dullest month is January (0/100, 86 mm of rain). The full month-by-month picture is in the table below.
How sunny is Dublin?
Dublin isn't a sunny place by world standards: about 1,488 hours of sunshine a year. 60 Sunshine Score points separate July (60) from January (0), so the month you pick matters. It ranks #2 of 10 destinations in Ireland for annual sunshine, above the national median of 1,418 hours. The year's 982 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 7° / 45°F | 4° / 39°F | 86 mm | 0 | 7° / 45°F |
| February | 0 | 7° / 45°F | 4° / 39°F | 70 mm | 1 | 8° / 46°F |
| March | 6 | 9° / 48°F | 4° / 39°F | 70 mm | 2 | 8° / 46°F |
| April | 19 | 11° / 52°F | 6° / 43°F | 61 mm | 3 | 10° / 50°F |
| May | 37 | 14° / 57°F | 8° / 46°F | 67 mm | 5 | 14° / 57°F |
| June | 49 | 16° / 61°F | 11° / 52°F | 76 mm | 5 | 15° / 59°F |
| July | 60 | 18° / 64°F | 12° / 54°F | 80 mm | 5 | 16° / 61°F |
| August | 59 | 18° / 64°F | 12° / 54°F | 91 mm | 4 | 17° / 63°F |
| September | 49 | 16° / 61°F | 11° / 52°F | 76 mm | 3 | 16° / 61°F |
| October | 28 | 13° / 55°F | 9° / 48°F | 102 mm | 2 | 13° / 55°F |
| November | 11 | 10° / 50°F | 6° / 43°F | 106 mm | 1 | 12° / 54°F |
| December | 0 | 8° / 46°F | 5° / 41°F | 97 mm | 0 | 8° / 46°F |
Sea temperature in Dublin by month
The sea off Dublin is warmest in August at around 17°C / 63°F, and coolest in January at 7°C / 45°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Dublin on the interactive sunshine globe →
Nearby places for sunshine
- Castletown Isle of Man · 130 km · best in Jul · 1,459 h sun/yr
- Belfast United Kingdom · 137 km · best in Jul · 1,263 h sun/yr
- Charlestown Ireland · 177 km · best in Jul · 1,412 h sun/yr
- Shannon Ireland · 195 km · best in Jul · 1,468 h sun/yr
- Liverpool United Kingdom · 227 km · best in Jul · 1,453 h sun/yr
- Cork Ireland · 232 km · best in Jul · 1,693 h sun/yr
Nearest destinations
- Derry United Kingdom · 189 km · 1,326 h sun/yr · best in Jul
- Connemara Ireland · 214 km · 1,410 h sun/yr · best in Jul
Head-to-head
How Dublin compares month by month: Dublin vs Belfast · Dublin vs Cork · Dublin vs Shannon · Dublin vs Castletown · all comparisons
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