Ólafsfjörður Weather in September
September in Ólafsfjörður brings low temperatures, with daytime highs of 9°C (48°F) and nights around 4°C (39°F). Quite a bit of rainfall is expected, around 141 mm (5.6 in), so pack an umbrella.
Rainfall in Ólafsfjörður in September
On average, there are about 16 days with rain during this month, averaging 141 mm (5.6 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Ólafsfjörður in September
September in Ólafsfjörður sees highs of 9°C (48°F) and lows of 4°C (39°F) overnight. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Ólafsfjörður in September
The month is characterized by fewer sunny days, with roughly 85 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.September in Ólafsfjörður has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Ólafsfjörður's climate page.
Ólafsfjörður Temperature in September
Min Temperature
4°C (39°F)
Max Temperature
9°C (48°F)
Chance of Rain
53%
Precipitation
141 mm (5.6 in)
Rainy days
16 days
Humidity
77% *
Sunshine
85 hours *
Percentage Sunshine
20% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ólafsfjörður typically drop from around 12°C (54°F) at the start of September to approximately 8°C (46°F) by the end. Nights are cold, with lows typically ranging from 1°C (34°F) to 6°C (43°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Ólafsfjörður in September
Browse day-by-day weather records for Ólafsfjörður spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ólafsfjörður historical weather extremes in September
Based on 49 years of weather observations in Ólafsfjörður between 1976 and 2025, these are the recorded extremes.
- Ólafsfjörður recorded its highest September temperature of 22°C (72°F) on September 4, 2010.
- Ólafsfjörður experienced its chilliest September day on September 29, 1988, reaching only 1°C (34°F).
- The lowest overnight temperature recorded in September was -12°C (10°F) (September 29, 1977).
- The wettest day in September Ólafsfjörður was on September 22, 1984 with 92 mm (3.6 in) of precipitation.
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 →
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What to Wear in Ólafsfjörður in September
We recommend to layer up for chilly conditions in Ólafsfjörður in September. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Ólafsfjörður in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Ólafsfjörður's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ólafsfjörður climate overview or explore weather in Iceland.
