Harboør Weather in September
Harboør in September sees moderate daytime temperatures of 17°C (63°F) and nighttime lows of 12°C (54°F). Rainfall is fairly high this month at around 106 mm (4.2 in), so pack a rain jacket to stay dry.
Rainfall in Harboør in September
Historically, approximately 17 days this month are expected to have rain, averaging 106 mm (4.2 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Harboør in September
September in Harboør brings typical temperatures with highs around 17°C (63°F) and lows of 12°C (54°F). The summer season takes place during September. Conditions are often most pleasant around the middle of the day. Nights cool down to 12°C (54°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Harboør in September
With about 165 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.
Wind Speed in Harboør in September
September sees wind speeds averaging 6 m/s (12 knots). You'll experience strong winds that cause whole trees to sway and require effort when walking against them. As an average, expect variation from moderate breezes to particularly windy days that affect daily routines.
Average water temperature in September
The water is 15°C (59°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.For Harboør itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Denmark, check out our Harboør's climate page.
Harboør Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
17°C (63°F)
Water Temperature
15°C (59°F) *
Chance of Rain
56%
Precipitation
106 mm (4.2 in)
Rainy days
17 days
Humidity
82% *
Windspeed
6 m/s (12 knots) *
Sunshine
165 hours *
Percentage Sunshine
43% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Harboør typically drop from around 18°C (64°F) at the start of September to approximately 15°C (59°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 12°C (54°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 Harboør in September
Browse day-by-day weather records for Harboør spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Harboør historical weather extremes in September
Based on 49 years of weather observations in Harboør between 1976 and 2025, these are the recorded extremes.
- The warmest day in September was on September 1, 1983, with a maximum of 28°C (82°F).
- On September 16, 1993, Harboør saw its coldest September day with temperatures maxing out at 9°C (48°F).
- Harboør registered its coldest September night on September 30, 1987, with temperatures dropping to 1°C (34°F).
Best Places in Denmark in September
Find out more about the weather in Denmark and which places have the best travel conditions in this month. See all of Denmark in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Harboør in September
For Harboør in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 15°C (59°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Harboør 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 Denmark, check out our Harboør's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Harboør climate overview or explore weather in Denmark.
