Iceland weather in September
What is the weather like in Iceland in September?
The weather conditions in Iceland in September are generally poor.
During September in Iceland, the average maximum temperature varies from low in Jokulsarlon Glacial Lagoon with 8°C (47°F) to moderate in Hella with 13°C (55°F). Minimum nighttime temperatures generally drop to 7°C (44°F) in Hella and 4°C (40°F) in Jokulsarlon Glacial Lagoon.
Precipitation in September varies from moderate in Raufarhöfn with an average of 85mm (3.36 inches) of rainfall to heavy in Jokulsarlon Glacial Lagoon with 304mm (12 inches).
It is also generally a
moderately sunny
time of year with an average of 121 hours of sunshine in Reykjavík during the entire month.
To learn more about the weather conditions in specific areas of Iceland, check out the map below.
Where to go in Iceland in September
perfect weather
pleasant
tolerable
unpleasant
poor
Popular destinations in Iceland
What is the weather like in September for the 5 most popular destinations in Iceland?
Average weather in Reykjavík
In September Reykjavík generally has moderate temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.
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Average weather in Akureyri
In September Akureyri generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 3°C (37°F) and high monthly rainfall. So on average the conditions are poor that month.
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Average weather in Keflavík
In September Keflavík generally has low temperatures with maximum daytime temperatures around 12°C (53°F), minimum nighttime temperatures around 8°C (46°F) and high monthly rainfall. So on average the conditions are poor that month.
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Average weather in Höfn
In September Höfn generally has low temperatures with maximum daytime temperatures around 10°C (51°F), minimum nighttime temperatures around 6°C (43°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Selfoss
In September Selfoss generally has moderate temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 7°C (44°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Is your destination not in the list? Have a look at other destinations in Iceland.
Is September the best time to go to Iceland?
In our opinion September is not the best time to visit Iceland with commonly poor weather in Reykjavík.
On average the best time to visit Iceland is in June and July with generally tolerable weather in Reykjavík.
The worst months are January, February, March, April, September, October, November and December that can have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Iceland.
Interested in the weather conditions in a specific month? Select the month below.
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.
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.