January in Cliffs of Moher — the hardest end of the year
Hardest · 3.9/10January averages 7°C (45°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 102 mm this is a genuinely wet month: almost no days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 3.9/10 here, 11th of 12 months, against 8.4/10 in the destination's best month.
Figure on mid-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? May scores 4.5 points higher here — enough to change the trip.
February in Cliffs of Moher: expect compromises
Hardest · 4/10February averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 124 mm this is a genuinely wet month: almost no days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 4/10 here, 9th of 12 months, against 8.4/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? May scores 4.4 points higher here — enough to change the trip.
March in Cliffs of Moher: expect compromises
Hardest · 4.6/10Expect 8°C (46°F) in March. A good month for city streets, viewpoints and long meals; leave swimming for another season.
137 mm of rain signals a properly wet month, with only about 3 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 4.6/10 on the same scale — 7th of 12 months, versus 8.4/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Cliffs of Moher — 3.8 points higher on the same scale.
April in Cliffs of Moher — reliably good (5th best month)
Good · 7/10April averages 10°C (49°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 77 mm, so plan one flexible day in three; you still get about 12 days with 6+ hours of sunshine and 13.7 hours of daylight.
It scores 7/10 here, 5th of 12 months, against 8.4/10 in the destination's best month.
Plan for mid-season pricing, with crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer, footwear you can get muddy.
May in Cliffs of Moher — the year's strongest window
Best window · 8.4/10Temperatures hover around 13°C (55°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 66 mm of rain this month — a flexible day or two helps — with about 19 days with 6+ hours of sunshine and 15.6 hours of daylight to work around it.
On our climate-comfort scale this is the top-ranked month of the year for Cliffs of Moher at 8.4/10 — the reference point every other month on this page is measured against.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.
June in Cliffs of Moher — reliably good (2nd best month)
Good · 8.4/10June averages 14°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 90 mm, so plan one flexible day in three; you still get about 21 days with 6+ hours of sunshine and 16.6 hours of daylight.
It scores 8.4/10 here, 2nd of 12 months, against 8.4/10 in the destination's best month.
Plan for peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.
July in Cliffs of Moher: strong conditions, 3rd of 12
Good · 7.7/10July averages 15°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 106 mm this is a genuinely wet month: about 17 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 7.7/10 here, 3rd of 12 months, against 8.4/10 in the destination's best month.
Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
August holds up well in Cliffs of Moher — 4th best month
Good · 7.7/10Temperatures hover around 16°C (61°F) — the kind of month where neither heat nor cold forces the schedule.
101 mm of rain signals a properly wet month, with only about 16 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 7.7/10 on the same scale — 4th of 12 months, versus 8.4/10 for the best month here.
Budget for peak pricing, and this is one of the busiest months here.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
September in Cliffs of Moher — middling scores, decent value
Trade-offs · 6.3/10Temperatures hover around 15°C (58°F) — the kind of month where neither heat nor cold forces the schedule.
105 mm of rain signals a properly wet month, with only about 6 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 6.3/10 on the same scale — 6th of 12 months, versus 8.4/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Cliffs of Moher — 2.1 points higher on the same scale.
October in Cliffs of Moher — off-season conditions
Hardest · 4.6/10October averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 165 mm this is a genuinely wet month: almost no days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 4.6/10 here, 8th of 12 months, against 8.4/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? May scores 3.8 points higher here — enough to change the trip.
November in Cliffs of Moher — off-season conditions
Hardest · 4/10November averages 10°C (50°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 144 mm this is a genuinely wet month: almost no days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 4/10 here, 10th of 12 months, against 8.4/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? May scores 4.4 points higher here — enough to change the trip.
December in Cliffs of Moher: expect compromises
Hardest · 3.1/10Expect 8°C (46°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Expect monsoon-level rainfall at 216 mm: only almost no days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 3.1/10 on the same scale — 12th of 12 months, versus 8.4/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Cliffs of Moher — 5.3 points higher on the same scale.
