Kirkjubæjarklaustur Weather in September
Kirkjubæjarklaustur in September averages 12°C (54°F) during the day and 6°C (43°F) at night. This is the wettest month of the year.
Rainfall in Kirkjubæjarklaustur in September
Kirkjubæjarklaustur is in the rainy season in September, with rain on around 18 days and an average of 217 mm (8.5 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Kirkjubæjarklaustur in September
September in Kirkjubæjarklaustur brings typical temperatures with highs around 12°C (54°F) and lows of 6°C (43°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Kirkjubæjarklaustur in September
The area experiences a moderate amount of sunshine, with approximately 110 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.
Wind Speed in Kirkjubæjarklaustur in September
Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.September in Kirkjubæjarklaustur 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 Kirkjubæjarklaustur's climate page.
Kirkjubæjarklaustur Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
12°C (54°F)
Chance of Rain
61%
Precipitation
217 mm (8.5 in)
Rainy days
18 days
Humidity
79%
Windspeed
3 m/s (6 knots)
Sunshine
110 hours
Percentage Sunshine
28%
Daily Historical Temperatures
43-year average (1983-2025)
Based on our historical records, temperatures in Kirkjubæjarklaustur typically drop from around 13°C (55°F) at the start of September to approximately 10°C (50°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 8°C (46°F).
Average temperatures in September
Daily Historical Precipitation
43-year average (1983-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Kirkjubæjarklaustur in September
Browse day-by-day weather records for Kirkjubæjarklaustur spanning 45 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kirkjubæjarklaustur historical weather extremes in September
Our historical data for Kirkjubæjarklaustur spans 1990 to 2025, revealing these weather extremes.
- Kirkjubæjarklaustur recorded its highest September temperature of 19°C (66°F) on September 11, 1996.
- On September 27, 1995, Kirkjubæjarklaustur saw its coldest September day with temperatures maxing out at 0°C (32°F).
- Kirkjubæjarklaustur registered its coldest September night on September 28, 2021, with temperatures dropping to -4°C (25°F).
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
What to Wear in Kirkjubæjarklaustur 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Kirkjubæjarklaustur 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 Kirkjubæjarklaustur's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Kirkjubæjarklaustur climate overview or explore weather in Iceland.
