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Fjall Weather in September
Fjall in September sees moderate temperatures, with highs around 12°C (54°F) and overnight lows of 6°C (43°F). Rainfall is fairly high at around 180 mm (7.1 in) on average, so pack waterproofs just in case.
Rainfall in Fjall in September
Historically, approximately 17 days this month are expected to have rain, averaging 180 mm (7.1 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Fjall in September
Expect highs of 12°C (54°F) in Fjall in September, with nights dropping to around 6°C (43°F). Conditions are often most pleasant around the middle of the day. Nights fall to 6°C (43°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Fjall in September
The area enjoys a balanced 121 hours of sunlight, ensuring it's neither too overcast nor too sunny.September in Fjall can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Fjall Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
12°C (54°F)
Chance of Rain
57%
Precipitation
180 mm (7.1 in)
Rainy days
17 days
Humidity
79% *
Sunshine
121 hours *
Percentage Sunshine
30% *
* Data from: Reykjavík, Iceland (64 KM, 40 Miles).
Fjall Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Fjall - and find the best time to visit.
Best Places in Iceland in September
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Fjall in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Fjall in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports5/10
Fjall 3-Day Forecast
More climate data for Fjall
Temperature Rainfall Sunshine Humidity
See the full Fjall climate overview or explore weather in Iceland.
Popular in September
Where to go in September - average daytime high across popular destinations.
Reykjavík
12°C (54°F) Kópavogur12°C (54°F) Hella
13°C (55°F) Selfoss12°C (54°F) Keflavík12°C (54°F) Höfn10°C (50°F) Egilsstadir
10°C (50°F) Akureyri9°C (48°F) Bucket list
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