gowhereandwhen.comGo from May to September for the mildest weather, the longest days and the greenest scenery. There is no dry season, so showers are likely any month, but spring and summer give the best odds of bright spells.
A 0 to 100 comfort rating from daytime heat, overnight chill, rainfall and storm risk, for Dublin. Higher is better. Some booking links earn us a commission, at no extra cost to you.
The steadiest weather, peaking around Jul.
Other months to compare; prices and crowds depend on your destination and dates.
The quietest, cheapest stretch of the year.
The year at a glance
Ireland is famously green for a reason: it is mild and wet all year, kept gentle by the Atlantic. Dublin anchors the ratings, where the best stretch runs from late spring to early autumn, when the days are long and the weather at its kindest.
Summer is the peak, with warm, light evenings and a full calendar, though even then a dry day is never guaranteed. Winter is dark and damp rather than cold, with cosy pubs and quiet sights making up for the short daylight.
Ireland month by month
Highs, lows, rainfall and the rating, for Dublin.
JanuaryCold with a little rain.Good 47
- Daytime high
- 8°C / 46°F
- Overnight low
- 3°C / 37°F
- Rainfall
- 63 mm
Cold with a little rain.
FebruaryCold and dry.Good 48
- Daytime high
- 8°C / 46°F
- Overnight low
- 3°C / 37°F
- Rainfall
- 50 mm
Cold and dry.
MarchCool and dry.Great 58
- Daytime high
- 10°C / 50°F
- Overnight low
- 4°C / 39°F
- Rainfall
- 54 mm
Cool and dry.
AprilCool and dry.Great 66
- Daytime high
- 12°C / 54°F
- Overnight low
- 5°C / 41°F
- Rainfall
- 51 mm
Cool and dry.
MayCool with a little rain.Ideal 78
- Daytime high
- 15°C / 59°F
- Overnight low
- 7°C / 45°F
- Rainfall
- 55 mm
Cool with a little rain.
JuneMild with a little rainIdeal 91
- Daytime high
- 18°C / 64°F
- Overnight low
- 10°C / 50°F
- Rainfall
- 57 mm
Mild with a little rain.
JulyMild and dryIdeal 98
- Daytime high
- 20°C / 68°F
- Overnight low
- 12°C / 54°F
- Rainfall
- 50 mm
Mild and dry.
AugustMild with a little rainIdeal 91
- Daytime high
- 19°C / 66°F
- Overnight low
- 12°C / 54°F
- Rainfall
- 66 mm
Mild with a little rain.
SeptemberMild with a little rain.Ideal 87
- Daytime high
- 17°C / 63°F
- Overnight low
- 10°C / 50°F
- Rainfall
- 57 mm
Mild with a little rain.
OctoberCool with a little rain.Great 72
- Daytime high
- 14°C / 57°F
- Overnight low
- 8°C / 46°F
- Rainfall
- 80 mm
Cool with a little rain.
NovemberCool with a little rain.Good 56
- Daytime high
- 10°C / 50°F
- Overnight low
- 5°C / 41°F
- Rainfall
- 73 mm
Cool with a little rain.
DecemberCold with a little rain.Good 48
- Daytime high
- 8°C / 46°F
- Overnight low
- 4°C / 39°F
- Rainfall
- 77 mm
Cold with a little rain.
Where you go changes when you go
Dublin and the east
The driest corner of a wet country, best from May to September for the city and the nearby coast and mountains.
The Wild Atlantic Way
The western coast and cliffs are dramatic year round but kindest in summer, when the long days suit the scenic drives.
The countryside and castles
The green heart of the island is at its most vivid from late spring, when the hedgerows and fields are thick and green.
Best time to visit Ireland for
Road trips and coast
June to August for the Wild Atlantic Way, with the longest days and the best chance of clear skies.
Cities and culture
May to September for Dublin, Galway and Cork, with mild weather and lively festivals.
Green landscapes
Late spring, when the countryside is at its greenest after the winter rains.
Quiet and value
Autumn and winter, outside the holidays, for cheaper, atmospheric trips with fewer crowds.
What is on, and when
St Patrick's Day, March
The whole island, and Dublin especially, throws its biggest celebration in mid March.
Long summer evenings, June
Around midsummer the light lingers past 10pm, perfect for the coast and the countryside.
Where to stay in Ireland
Compare places to stay around Dublin. Choose your dates on the booking site.
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- Read cancellation terms before you book.
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Good to know
What is the best time to visit Ireland?
Does it always rain in Ireland?
Is Ireland worth visiting in winter?
Where else, and when
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