Selfoss weather in September (South Iceland, Iceland)

How is the weather in Selfoss in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

In September, Selfoss generally has moderate temperatures and heavy rainfall. Anticipate daytime temperatures around 12°C, while night temperatures can drop to 7°C.

Selfoss in September usually receives heavy rainfall, averaging around 177 mm for the month. This month marks the year's heaviest rainfall, with frequent intense rainshowers. It's advisable to be prepared with appropriate rain gear to stay dry. Rain is expected on roughly 18 days.

The area experiences a moderate amount of sunshine, with approximately 121 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

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

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

 

Selfoss, monthly averages in September

Min TemperatureMin Temperature 7°C  
Max TemperatureMax Temperature 12°C  
Chance of RainChance of Rain 59%  
PrecipitationPrecipitation 177 mm  
Rainy daysRainy days 18 days  
HumidityHumidity 79% *  
SunshineSunshine 121 hours *  
Percentage SunshinePercentage Sunshine 30% *  
* Data from: Reykjavík, Iceland (48 KM, 30 Miles).

Where to go in Iceland in September

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

Map not visible? Whoops sorry! Please refresh the page.
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 Selfoss in September?

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.

What To Do

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

Swimming
5/10
Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
5/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Selfoss.

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 climate conditions. Find out where to go with our weather planner.