January in Giant's Causeway — off-season conditions
Hardest · 3.8/10January averages 6°C (42°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 75 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 7.5 hours of daylight.
It scores 3.8/10 here, 11th of 12 months, against 8.8/10 in the destination's best month.
Plan for 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 packable rain layer, footwear you can get muddy.
Flexible dates? June scores 5 points higher here — enough to change the trip.
February in Giant's Causeway — off-season conditions
Hardest · 4.1/10February averages 6°C (44°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 84 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 9.3 hours of daylight.
It scores 4.1/10 here, 9th of 12 months, against 8.8/10 in the destination's best month.
Plan for 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 packable rain layer, footwear you can get muddy.
Flexible dates? June scores 4.7 points higher here — enough to change the trip.
March in Giant's Causeway — the hardest end of the year
Hardest · 4.7/10Expect 7°C (44°F) in March. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 100 mm of rain this month — a flexible day or two helps — with about 2 days with 6+ hours of sunshine and 11.5 hours of daylight to work around it.
That is 4.7/10 on the same scale — 8th of 12 months, versus 8.8/10 for the best month here.
Budget for 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 packable rain layer, footwear you can get muddy.
If your dates are flexible, June is materially better in Giant's Causeway — 4.1 points higher on the same scale.
April in Giant's Causeway — workable with trade-offs
Trade-offs · 6.7/10April averages 8°C (47°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 82 mm, so plan one flexible day in three; you still get about 12 days with 6+ hours of sunshine and 13.8 hours of daylight.
It scores 6.7/10 here, 5th of 12 months, against 8.8/10 in the destination's best month.
Figure on 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.
Flexible dates? June scores 2.1 points higher here — enough to change the trip.
May in Giant's Causeway: strong conditions, 2nd of 12
Good · 8.2/10Expect 12°C (53°F) in May. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 69 mm of rain this month — a flexible day or two helps — with about 18 days with 6+ hours of sunshine and 15.9 hours of daylight to work around it.
That is 8.2/10 on the same scale — 2nd of 12 months, versus 8.8/10 for the best month here.
Expect mid-season pricing, and 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.
June in Giant's Causeway — the year's strongest window
Best window · 8.8/10June averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 65 mm, so plan one flexible day in three; you still get about 22 days with 6+ hours of sunshine and 17.1 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Giant's Causeway at 8.8/10 — the reference point every other month on this page is measured against.
Figure on 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 Giant's Causeway — reliably good (3rd best month)
Good · 7.8/10July averages 15°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 97 mm, so plan one flexible day in three; you still get about 17 days with 6+ hours of sunshine and 16.6 hours of daylight.
It scores 7.8/10 here, 3rd of 12 months, against 8.8/10 in the destination's best month.
Plan for 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 packable rain layer, footwear you can get muddy.
August in Giant's Causeway: strong conditions, 4th of 12
Good · 7.3/10Temperatures hover around 15°C (59°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 87 mm of rain this month — a flexible day or two helps — with about 12 days with 6+ hours of sunshine and 14.8 hours of daylight to work around it.
That is 7.3/10 on the same scale — 4th of 12 months, versus 8.8/10 for the best month here.
Expect 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 packable rain layer, footwear you can get muddy.
If your dates are flexible, June is materially better in Giant's Causeway — 1.5 points higher on the same scale.
September in Giant's Causeway: mixed conditions, plan around the weather
Trade-offs · 5.9/10Temperatures hover around 14°C (56°F) — the kind of month where neither heat nor cold forces the schedule.
116 mm of rain signals a properly wet month, with only about 4 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 5.9/10 on the same scale — 6th of 12 months, versus 8.8/10 for the best month here.
Budget for 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, June is materially better in Giant's Causeway — 2.9 points higher on the same scale.
October in Giant's Causeway — the hardest end of the year
Hardest · 4.8/10October averages 11°C (52°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 119 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 4.8/10 here, 7th of 12 months, against 8.8/10 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? June scores 4 points higher here — enough to change the trip.
November in Giant's Causeway: expect compromises
Hardest · 4.1/10November averages 9°C (47°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 98 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 8 hours of daylight.
It scores 4.1/10 here, 10th of 12 months, against 8.8/10 in the destination's best month.
Plan for 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 packable rain layer, footwear you can get muddy.
Flexible dates? June scores 4.7 points higher here — enough to change the trip.
December in Giant's Causeway: expect compromises
Hardest · 3.2/10Expect 6°C (44°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
122 mm of rain signals a properly wet month, with only almost no days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 3.2/10 on the same scale — 12th of 12 months, versus 8.8/10 for the best month here.
Budget for 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, June is materially better in Giant's Causeway — 5.6 points higher on the same scale.
