January in Jökulsárlón — the hardest end of the year
Hardest · 1/10January averages -1°C (30°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
249 mm of rain puts this in monsoon territory — about 0 sunny days across the whole month, and multi-day washouts are normal.
It scores 1/10 here, 12th of 12 months, against 7.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, July is materially better in Jökulsárlón — 6.6 points higher on the same scale.
February in Jökulsárlón — the hardest end of the year
Hardest · 1.6/10February averages -1°C (30°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
237 mm of rain puts this in monsoon territory — about 0 sunny days across the whole month, and multi-day washouts are normal.
It scores 1.6/10 here, 10th of 12 months, against 7.6/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, July is materially better in Jökulsárlón — 6 points higher on the same scale.
March in Jökulsárlón — the hardest end of the year
Hardest · 2.4/10March averages -1°C (31°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
295 mm of rain puts this in monsoon territory — about 2 sunny days across the whole month, and multi-day washouts are normal.
It scores 2.4/10 here, 8th of 12 months, against 7.6/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, July is materially better in Jökulsárlón — 5.2 points higher on the same scale.
April in Jökulsárlón — workable with trade-offs
Trade-offs · 5.2/10April averages 2°C (35°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
At 160 mm this is a genuinely wet month: about 16 sunny days in total, and outdoor plans need an indoor fallback.
It scores 5.2/10 here, 5th of 12 months, against 7.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, July is materially better in Jökulsárlón — 2.4 points higher on the same scale.
May in Jökulsárlón — workable with trade-offs
Trade-offs · 6.3/10May averages 5°C (40°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 150 mm this is a genuinely wet month: about 30 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.3/10 here, 3rd of 12 months, against 7.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
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.
June in Jökulsárlón — reliably good (2nd best month)
Good · 7.3/10June averages 7°C (44°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 100 mm this is a genuinely wet month: about 30 sunny days in total, and outdoor plans need an indoor fallback.
It scores 7.3/10 here, 2nd of 12 months, against 7.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
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.
July in Jökulsárlón — the year's strongest window
Best window · 7.6/10July averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 93 mm, so plan one flexible day in three; you still get about 26 sunny days and 19.2 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Jökulsárlón at 7.6/10 — the reference point every other month on this page is measured against.
Expect peak pricing, and 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 a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer, footwear you can get muddy.
August in Jökulsárlón — workable with trade-offs
Trade-offs · 6.2/10August averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 150 mm this is a genuinely wet month: about 16 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.2/10 here, 4th of 12 months, against 7.6/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here.
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.
September in Jökulsárlón — the hardest end of the year
Hardest · 4.3/10September averages 6°C (42°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 173 mm this is a genuinely wet month: about 3 sunny days in total, and outdoor plans need an indoor fallback.
It scores 4.3/10 here, 6th of 12 months, against 7.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
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, July is materially better in Jökulsárlón — 3.3 points higher on the same scale.
October in Jökulsárlón — the hardest end of the year
Hardest · 2.9/10October averages 3°C (37°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
At 162 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 2.9/10 here, 7th of 12 months, against 7.6/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, July is materially better in Jökulsárlón — 4.7 points higher on the same scale.
November in Jökulsárlón — the hardest end of the year
Hardest · 1.7/10November averages 2°C (36°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
240 mm of rain puts this in monsoon territory — about 0 sunny days across the whole month, and multi-day washouts are normal.
It scores 1.7/10 here, 9th of 12 months, against 7.6/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, July is materially better in Jökulsárlón — 5.9 points higher on the same scale.
December in Jökulsárlón — the hardest end of the year
Hardest · 1.3/10December averages -2°C (28°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
At 143 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 1.3/10 here, 11th of 12 months, against 7.6/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, July is materially better in Jökulsárlón — 6.3 points higher on the same scale.
