January in Þingvellir — off-season conditions
Hardest · 0.3/10At -5°C (23°F) this is proper winter weather in January: layer up and split the day between outdoor highlights and indoor stops.
182 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 4.8 hours of daylight.
That is 0.3/10 on the same scale — 12th of 12 months, versus 7.5/10 for the best month here.
Budget for 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 Þingvellir — 7.2 points higher on the same scale.
February in Þingvellir — the hardest end of the year
Hardest · 1.1/10At -4°C (24°F) this is proper winter weather in February: layer up and split the day between outdoor highlights and indoor stops.
153 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 8 hours of daylight.
That is 1.1/10 on the same scale — 10th of 12 months, versus 7.5/10 for the best month here.
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 Þingvellir — 6.4 points higher on the same scale.
March in Þingvellir — the hardest end of the year
Hardest · 2.3/10March averages -3°C (26°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
At 120 mm of water-equivalent precipitation this is a snowy month at resort level — that is snowpack, not lost days — with almost no days with 6+ hours of sunshine and 11.2 hours of daylight.
It scores 2.3/10 here, 8th of 12 months, against 7.5/10 in the destination's best month.
Plan for low-season pricing, with 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.
Flexible dates? July scores 5.2 points higher here — enough to change the trip.
April in Þingvellir — middling scores, decent value
Trade-offs · 5.5/10At 1°C (34°F) this is proper winter weather in April: layer up and split the day between outdoor highlights and indoor stops.
Budget for roughly 79 mm of rain this month — a flexible day or two helps — with about 12 days with 6+ hours of sunshine and 14.7 hours of daylight to work around it.
That is 5.5/10 on the same scale — 5th of 12 months, versus 7.5/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
If your dates are flexible, July is materially better in Þingvellir — 2 points higher on the same scale.
May in Þingvellir — workable with trade-offs
Trade-offs · 6/10May averages 5°C (41°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 146 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 6/10 here, 4th of 12 months, against 7.5/10 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 proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? July scores 1.5 points higher here — enough to change the trip.
June in Þingvellir — reliably good (2nd best month)
Good · 7/10Expect 8°C (46°F) in June. A good month for city streets, viewpoints and long meals; leave swimming for another season.
108 mm of rain signals a properly wet month, with only about 17 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 7/10 on the same scale — 2nd of 12 months, versus 7.5/10 for the best month here.
Budget for 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 Þingvellir — the year's strongest window
Best window · 7.5/10Expect 10°C (50°F) in July. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 88 mm of rain this month — a flexible day or two helps — with about 16 days with 6+ hours of sunshine and 19.3 hours of daylight to work around it.
On our climate-comfort scale this is the top-ranked month of the year for Þingvellir at 7.5/10 — 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 Þingvellir: mixed conditions, plan around the weather
Trade-offs · 6.3/10August averages 9°C (48°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 101 mm this is a genuinely wet month: about 9 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 6.3/10 here, 3rd of 12 months, against 7.5/10 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 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 Þingvellir: expect compromises
Hardest · 4.4/10September averages 6°C (42°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 116 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 4.4/10 here, 6th of 12 months, against 7.5/10 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 proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? July scores 3.1 points higher here — enough to change the trip.
October in Þingvellir — the hardest end of the year
Hardest · 2.6/10At 1°C (33°F) this is proper winter weather in October: layer up and split the day between outdoor highlights and indoor stops.
124 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 9.3 hours of daylight.
That is 2.6/10 on the same scale — 7th of 12 months, versus 7.5/10 for the best month here.
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 Þingvellir — 4.9 points higher on the same scale.
November in Þingvellir — off-season conditions
Hardest · 1.9/10At -1°C (30°F) this is proper winter weather in November: layer up and split the day between outdoor highlights and indoor stops.
96 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 5.9 hours of daylight.
That is 1.9/10 on the same scale — 9th of 12 months, versus 7.5/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
If your dates are flexible, July is materially better in Þingvellir — 5.6 points higher on the same scale.
December in Þingvellir — off-season conditions
Hardest · 0.6/10December averages -7°C (20°F) — deep-winter cold that dictates the whole trip: short outdoor stints, indoor plans on standby, and no expectation of long walking days.
At 130 mm of water-equivalent precipitation this is a snowy month at resort level — that is snowpack, not lost days — with almost no days with 6+ hours of sunshine and 3.5 hours of daylight.
It scores 0.6/10 here, 11th of 12 months, against 7.5/10 in the destination's best month.
Figure on low-season pricing, with 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.
Flexible dates? July scores 6.9 points higher here — enough to change the trip.
