Sønderby Weather in September
In Sønderby, September brings moderate daytime temperatures around 18°C (64°F), with nights cooling to 12°C (54°F). Expect quite a bit of rainfall this month.
Rainfall in Sønderby in September
Typically around 14 days of rainfall are expected, averaging 74 mm (2.9 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Sønderby in September
Daytime highs in Sønderby in September reach 18°C (64°F), with nights around 12°C (54°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Sønderby in September
The month brings about 167 hours of sunlight, offering a comfortable mix of sun and overcast.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Sønderby.
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 Sønderby's climate page.
Sønderby Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
18°C (64°F)
Chance of Rain
48%
Precipitation
74 mm (2.9 in)
Rainy days
14 days
Sunshine
167 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sønderby 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 8°C (46°F) to 11°C (52°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 Sønderby in September
Browse day-by-day weather records for Sønderby spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sønderby historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Sønderby.
- The warmest day in September was on September 3, 1991, with a maximum of 27°C (81°F).
- The coldest September day was on September 16, 1993, with a maximum of 9°C (48°F).
- Nighttime temperatures dropped to -1°C (30°F) on September 30, 1979, marking the coldest September night on record.
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
poor
What to Wear in Sønderby in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Sønderby 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 Sønderby's climate page.
See the full Sønderby climate overview or explore weather in Denmark.
