The hottest month in Reykjavik is typically July, with daytime highs averaging around 13.4°C (56°F), based on 10 years of historical weather data. Overnight lows during this period average near 8.8°C (48°F).

What is the coldest month in Reykjavik?

The coldest month in Reykjavik is typically January, with overnight lows averaging around -3°C (27°F) and daytime highs near 1.6°C (35°F), based on 10 years of historical weather data. Freezing overnight temperatures are common during this month, so plan for icy conditions in the early morning.

Does Reykjavik have a rainy season?

Reykjavik doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. January is the wettest month on average (about 158 mm), while July is the driest (about 83 mm).

What's the best time of year to visit Reykjavik?

The best time to visit Reykjavik is typically July to August, when daytime highs average a comfortable 13.2°C (56°F). Rainfall during this window averages around 97 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.

Is Reykjavik's air quality safe right now?

As of the latest reading, Reykjavik's air quality index (AQI) is 18, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.

Atmospheric Details

Wind

21 km/h

SW · Moderate Breeze · Max 22 km/h

Humidity

63 %

Comfortable

UV Index

Moderate

Visibility

10 km

Excellent

Pressure

982 hPa

Low · change likely

Dew Point

2°C

Dry air

Today vs Normal

9°C-1° below normal

The long-term average high for today is 10°C.

8 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running below normal.

Red = above normal, blue = at or below · last 12 days

Air Quality

Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.

Health & Activity Advice

✅ Good for Outdoors

UV index is 3 today — low. Minimal sun protection is needed for most outdoor activity.

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.

Conditions are comfortable for outdoor activity at most points during the day today.

It will feel cold outside — dress in layers if you're heading out.