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Weather in Iceland in December

Facts verified 2026-08-04Updated 2026-08-04Weather

The bottom of the year, precisely: 12.6 sunshine hours all month, the 4h08m solstice day on the table — and the turn already visible by New Year’s Eve.

A black ribbon of two-lane road curving through a completely snow-covered white landscape in Iceland, yellow marker posts along the verge and a snowy mountain ridge on the horizon.
December’s contract: a black road through a white world, photographed 3 December. CC0, via Wikimedia Commons.
Short answer

December weather in Iceland: the year’s bottom, measured — 12.6 sunshine hours in the entire month, the 4 h 08 m solstice day computed below, the wettest normals in the table (94.9 mm) and records to −16.8°C. Yet milder than the latitude suggests — and the turn arrives before New Year. Live reading below.

What is the weather in Iceland right now?

TownNowWindSky
Vík4°C3 m/sLight drizzle
Ísafjörður5°C11 m/sMostly clear
Akureyri3°C8 m/sMostly clear
Landmannalaugar0°C9 m/sClear sky

Live Open-Meteo readings for our reference towns, fetched at render. The full live board — roads, alerts, aurora, webcams — is Iceland Pulse.

December in Reykjavík — the whole table

MetricValueWhat it means
Mean daily high3.3°CMilder than the latitude suggests
Mean daily low−1.6°CFreeze-thaw is the daily rhythm
Record high12.9°CA rogue Atlantic warm sector
Record low−16.8°CThe table’s deepest capital cold
Precipitation94.9 mmThe wettest month in the table
Sunshine12.6 hFor the ENTIRE month — ~24 min/day

Two rows define the month: 12.6 sunshine hours — not per day, for the month — and 94.9 mm, the table’s wettest. December is dim and damp by declaration, which is precisely why its plans should be built around pools, lights and sky — the full-year table shows how singular that combination is.

How much daylight does December have?

DateSunriseSunsetDay length
12-0110:4415:505 h 06 m
12-1011:0615:354 h 29 m
12-2111:2215:294 h 08 m
12-3111:2115:394 h 18 m

Computed, not copied — sunrise and sunset for 2026 at Reykjavík’s own coordinates (64.15, -21.94), NOAA solar algorithm. Read the 21st — the solstice, the year’s shortest day — then read the 31st: already longer. December contains the turn; the light starts back before the fireworks do. The twenty-hour nights meanwhile belong to the aurora forecast.

How cold is Iceland in December, really?

Milder than the map implies — the honest surprise of the Icelandic winter. The North Atlantic current holds Reykjavík’s December normals at −1.6°C to 3.3°C, gentler than many cities far to the south. What makes it FEEL arctic is the wind, and what makes it dangerous is the freeze-thaw glaze on pavements and tarmac — the photo’s black road turns black-ice road overnight. The winter-driving guide and the live route verdicts carry that discipline.

The record row keeps everyone honest: −16.8°C has happened, on still clear nights when the ocean’s protection stands down. For the month’s soul — Yule Lads, solstice, fireworks — the December pillar takes over, and January continues the light’s return.

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December weather — questions people actually ask

What is the weather like in Iceland in December?
The year's bottom, measured exactly: normals of −1.6°C to 3.3°C in Reykjavík, the wettest month in the table (94.9 mm over 14.6 days, falling as rain, sleet and snow in rotation), and 12.6 hours of sunshine for the entire month — roughly twenty-four minutes a day. The computed table shows the solstice day at 4 hours 8 minutes. It is a month of twilight, pools, fairy lights and aurora — and honest pages say so.
How cold is Iceland in December, really?
Less cold than the map suggests — that is the genuine surprise. The North Atlantic current keeps Reykjavík's December normals at −1.6°C to 3.3°C, milder than many mainland European and North American cities far to the south. The catch is threefold: the wind makes every degree feel colder, the freeze-thaw cycle glazes pavements daily, and the records (−16.8°C) show what a still, clear spell can deliver. Cold here is a wind story, not a thermometer story.
How dark is Iceland in December?
The solstice row on this page reads sunrise 11:22, sunset 15:29 — a 4-hour-8-minute day, with the sun grazing the horizon even at noon. But read the 31 December row too: the day is already longer than the solstice's. The month contains the turn. Practically, everything bright happens between about 11:00 and 15:30, and the other twenty hours belong to lights, pools and — on clear nights — the aurora.
Does it snow in Iceland in December?
Yes, and it usually stays — December is the first month of dependable lowland cover in most years. But the freeze line still flips: with normals straddling zero, the same front can deliver snow, sleet and rain in one afternoon, and Reykjavík's streets cycle between white and wet. The mountains and the north hold their snow more faithfully. For drivers the story is the photo above: black tarmac through a white world, until it isn't.
What should I wear in Iceland in December?
The full winter system plus traction: insulated waterproof parka, warm mid-layer, thermals, hat, gloves, scarf — and shoe grippers, because the freeze-thaw pavement glaze injures more visitors than the cold does. Daylight's narrowness means you dress once and stay out through the whole window. The swimsuit remains non-negotiable: December's 38°C geothermal water under falling snow is the argument that wins everyone over.
Is driving hard in Iceland in December?
It demands winter discipline: studded or winter tyres (standard on rentals), the live road state before every departure, storm days treated as rest days, and the four-hour daylight window planned around. Roads are ploughed and the Ring Road stays open in all but the worst weather, but black ice owns the mornings. The route-verdict tool and the storm-driving guide carry the details; the rule of rules is simple — when Vegagerðin says closed, it is closed.
Is December good for northern lights in Iceland?
The calendar's maximum darkness — twenty-hour nights — makes December statistically generous, with one caveat this page quantifies: it is also the wettest month (94.9 mm), so cloud is the gatekeeper. The working method: watch the live cloud-cover map, keep evenings flexible, and treat any clear window after 18:00 as an appointment. City lights matter less than people fear; a dark beach twenty minutes out does the job.

Photograph: a December road in Iceland (3 December), CC0, via Wikimedia Commons. Climate normals 1991–2020 (including the record rows): Icelandic Met Office, as published in the Reykjavík climate table, read 4 August 2026. Daylight computed at render (NOAA solar algorithm, Reykjavík coordinates; Iceland keeps UTC year-round). Live reading: Open-Meteo via our Pulse feed at render time, shown only when the feed answers.