5-day weather forecast Reykjavík Sep 27, 2026
7°Weather forecast Reykjavík today Sep 27, 2026: overcast, temperature from 4 °C to 7 °C.
Precipitation probability 49%. Wind up to 6.5 m/s (gusts 9.69 m/s). Air humidity 76–96%, atmospheric pressure 740–743 mm Hg, UV index up to 0.7.
5 days at a glance — tap a day to open it
Sunrise 07:25
Sunset 19:11
Sunset 19:11
Waning Gibbous96% illuminated
Moonrise 18:31 · Moonset 08:54
Moonrise 18:31 · Moonset 08:54
Chart
TableSun, Sep 27, 2026
Forecast from 4 °C to 7 °C and precipitation
Cloud cover and precipitation probability
Wind speed and direction
Air humidity
Atmospheric pressure
Ultraviolet index
Air quality & pollen
Sun, Sep 27, 2026
Frequently asked questions about the 5-day weather in Reykjavík
What will the weather be like in Reykjavík over the next 5 days?
Over the next 5 days in Reykjavík the temperature is expected to range from about 4 to 12 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Reykjavík?
The chance of rain in Reykjavík over the next 5 days reaches 84%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Reykjavík?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Reykjavík will be the warmest and which the coolest?
Over the next 5 days the temperature in Reykjavík ranges from about 4 to 12 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Reykjavík over the next 5 days?
Over the next 5 days the wind in Reykjavík picks up to 18 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Reykjavík is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 84%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Reykjavík?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
Will I need an umbrella or sunscreen in Reykjavík this week?
Rain reaches a 84% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 0.7; sunscreen is worth it from about 3 upwards.
Reykjavík on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.