Reykjavík weather in September (Capital Region, Iceland)

What is the weather forecast for Reykjavík in September? Use this page to get an overview of the month’s weather conditions.

Temperatures

In September, Reykjavík usually has moderate temperatures and high rainfall. Daytime temperatures hover around 12°C, while nights can cool down to about 6°C.

Precipitation

Reykjavík in September usually receives high rainfall, averaging around 145 mm for the month. Past climate data indicates that roughly 18 days will see rain.

Average sunshine

With about 121 hours of sunshine, the area enjoys a nice balance of sun and clouds, creating a pleasant environment.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Reykjavík. June and July typically offer the best circumstances. While January, February, March, April, September, October, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Reykjavík climate page with graphs.

 

Reykjavík, monthly averages in September

Min Temperature 6°C  

Max Temperature 12°C  

Water Temperature 10°C  

Chance of Rain 60%  

Precipitation 145 mm  

Rainy days 18 days  

Humidity 79%  

Windspeed 18 km/h  

Sunshine 121 hours  

Percentage Sunshine 30%  

Where to go in Iceland in September

Find out more about the weather in Iceland and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay. With a water temperature of around 10°C there is no need to bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

5/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Reykjavík.

Our site offers climate and forecast data for every country in the world. Are you going to Iceland? On this website you can find historical weather averages for many cities in Iceland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.