Daytime highs, nighttime lows and the warmest cities in South Iceland, Iceland this September.
South Iceland, Iceland, a region in Iceland, experiences maximum daytime temperatures in September ranging from 9°C (48°F) in Hali to 13°C (55°F) in Hella. Nighttime temperatures generally drop to 7°C (45°F) in Hella and 4°C (39°F) in Hali.
Explore the map below to discover average September temperatures at the top destinations in South Iceland. For a deeper dive, simply click on any destination dot.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across South Iceland.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Average daytime highs in South Iceland, Iceland during September reach about 10°C (50°F) in Höfn.
Nighttime temperatures in Höfn typically drop to around 6°C (43°F) in September.
Hella tops the warmest city list in our database with average maximum daytime temperatures around 13°C (55°F) and a minimum nighttime temperature of around 7°C (45°F).
The coldest city in September in South Iceland, Iceland is Hali when we check our database. The maximum daytime temperatures are around 9°C (48°F) and minimum nighttime temperatures fall around 4°C (39°F).
Most areas experience a moderate amount of sunshine, with approximately 114 hours of sunlight expected in Höfn. This makes it neither too gloomy nor overly bright.
We have much more information about the climate in South Iceland.
Weather and climate has detailed information for every country in the world. Are you going to Iceland? Get detailed historical weather averages for many cities in Iceland.
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