Reykjavík Weather by Month

Last updated: 2026-09-01 · Totally Iceland Team

Reykjavík is coastal, windy and changeable

Reykjavík's North Atlantic location keeps it milder than many inland places at the same latitude. The Icelandic Meteorological Office's 1991–2020 climate reference puts Reykjavík's long-term annual mean at about 5.2°C.

That does not mean the city feels mild every day. Wind, damp air and passing rain can make a modest temperature feel much colder, while a calm sunny day can feel surprisingly comfortable.

The practical rule is simple: plan for layers and weather changes, not one forecast icon.

Winter: December to February

Winter brings the shortest days, frequent wind and a mix of rain, sleet and snow.

Typical daytime temperatures often hover only a few degrees above or below freezing rather than sitting in severe deep-freeze territory. Roads and pavements can still become icy, especially after thaw/refreeze cycles.

December

Expect very short daylight around the winter solstice. City sightseeing works well if you put outdoor walks into the brightest part of the day and use museums, pools, cafés and restaurants before and after.

January

January is dark, exposed and often windy. Build flexibility into northern-lights plans rather than assuming one booked evening will be clear.

February

Daylight increases quickly. Winter weather is still very possible, but the extra light gives you more room for city walks and short excursions.

Spring: March to May

Spring in Reykjavík is a transition rather than a clean switch to warm weather.

March

Daylight lengthens rapidly, but winter road and weather conditions can still return. Pack for cold rain and wind rather than treating March like a European city spring.

April

Longer days make sightseeing easier. Conditions can range from calm sunshine to sleet in a short period.

May

May is one of the more comfortable shoulder periods for city travel. Days become very long, but evenings can still feel cold near the water.

Summer: June to August

Summer is cool rather than hot, with extraordinarily long daylight.

June

Around the summer solstice, Reykjavík never becomes properly dark. Bring an eye mask if you are sensitive to light while sleeping.

July

July is usually among the mildest months, but "Icelandic summer" still calls for a jacket. A sunny 14–16°C day can feel pleasant; the same temperature in strong wind and rain feels very different.

August

Daylight starts shortening noticeably, especially later in the month. Weather remains relatively mild, but rain and wind can interrupt outdoor plans.

Autumn: September to November

Autumn brings a fast return of darkness, cooler air and increasingly changeable conditions.

September

September can still be comfortable for city travel, while darker nights make aurora viewing possible again when skies are clear and activity cooperates.

October

Expect stronger autumn weather, shorter days and a greater chance of wintry conditions. Keep day trips flexible.

November

Daylight becomes limited quickly. Rain, sleet, wind and occasional snow all belong in the planning range.

Temperature is not the whole story

The Icelandic Met Office reported Reykjavík's 2024 annual mean temperature at 4.3°C, which was 0.9°C below the 1991–2020 mean. That illustrates why a single recent year should not be treated as the "normal" climate.

For travellers, wind speed and precipitation often matter more than whether the forecast says 4°C or 7°C.

Rain and wind

Reykjavík gets precipitation throughout the year. The city is not defined by constant heavy rain, but showers, drizzle and wet windy spells are common enough that waterproof clothing earns its luggage space.

A good shell is usually more useful than an umbrella. Strong wind can make umbrellas awkward and can dramatically increase wind chill.

Daylight changes are enormous

Daylight is one of the biggest seasonal differences in Reykjavík.

• Midwinter: only a few hours of usable daylight.
• March and September: day length changes quickly around the equinoxes.
• Late spring and summer: extremely long days.
• Around the June solstice: there is no true night darkness.

This matters for photography, driving, sleep and how much outdoor sightseeing fits comfortably into a day.

Is Reykjavík weather a reason to cancel a city day?

Usually, no. Reykjavík is easier to adapt to bad weather than a remote road trip.

You can switch between:

• museums and galleries;
• geothermal swimming pools;
• cafés and food halls;
• churches and cultural venues; and
• short outdoor walks between indoor stops.

Severe weather warnings are different. If authorities advise against travel or conditions make walking unsafe, change the plan rather than treating it as normal rain.

What to pack for Reykjavík

Year-round, a practical base kit is:

• waterproof outer shell;
• warm mid-layer;
• shoes with good grip;
• hat and gloves outside the mildest summer days;
• light layers you can add or remove indoors; and
• sunglasses, because low-angle sun and bright summer nights can both surprise you.

In winter, consider traction aids where appropriate and take extra care on icy pavements.

Where to check the forecast

Use the Icelandic Meteorological Office (vedur.is) for current forecasts, warnings, wind, precipitation and weather-station information.

Check again on the morning of any day trip. A forecast read two days earlier is useful for packing; it is not a substitute for the live conditions you will actually drive into.

For road trips, pair the weather forecast with current road and safety information rather than making decisions from a generic phone weather app alone.

The best weather mindset for Reykjavík

Do not wait for a perfect forecast. Dress for the conditions, leave some slack in outdoor plans, and use Reykjavík's indoor attractions when a squall moves through.

The city is visitable in every month. What changes most is not whether you can enjoy it, but how much daylight you have, how much weather margin you need and what kind of Iceland trip can safely sit around the city stay.