Búðardalur Weather in September
September in Búðardalur sees daytime temperatures around 11°C (52°F) and lows of 5°C (41°F) at night. With around 121 mm (4.8 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Búðardalur in September
You can typically expect 17 days of rain this month, averaging around 121 mm (4.8 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 Búðardalur in September
In September, Búðardalur gets low temperatures, with highs of 11°C (52°F). Nights cool to around 5°C (41°F). Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. At 5°C (41°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Búðardalur in September
With about 106 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Búðardalur. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Búðardalur's climate page.
Búðardalur Temperature in September
Min Temperature
5°C (41°F)
Max Temperature
11°C (52°F)
Chance of Rain
56%
Precipitation
121 mm (4.8 in)
Rainy days
17 days
Humidity
79% *
Sunshine
106 hours *
Percentage Sunshine
27% *
Daily Historical Temperatures
44-year average (1976-2025)
Based on our historical records, temperatures in Búðardalur 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 4°C (39°F) to 7°C (45°F).
Average temperatures in September
Daily Historical Precipitation
44-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 Búðardalur in September
Browse day-by-day weather records for Búðardalur spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Búðardalur historical weather extremes in September
According to our 29 years of weather records for Búðardalur, the following extremes were recorded between 1996 and 2025.
- On September 3, 2010, temperatures climbed to 18°C (64°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 3°C (37°F), recorded on September 23, 2005.
- Búðardalur registered its coldest September night on September 25, 2020, with temperatures dropping to -6°C (21°F).
- The wettest September day on record brought 61 mm (2.4 in) of precipitation to Búðardalur (September 17, 2008).
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
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poor
What to Wear in Búðardalur in September
Pack for changing conditions in Búðardalur in September. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Búðardalur 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 Búðardalur's climate page.
Temperature Rainfall Sunshine Humidity
See the full Búðardalur climate overview or explore weather in Iceland.
