Denmark in September: Weather, Tips and More!

Denmark's September weather sees a transition from summer to fall season, resulting in mild and pleasant weather conditions across the country. Temperatures range from 15˚C (59˚F) to 22˚C (72˚F), with warm sunny days during the early part of the month. Evenings and nights start to become cooler as autumn sets in. Days become shorter as the month progresses, but you can still enjoy 12 to 14 hours of daylight. Rain showers become common but are scattered and interspersed with periods of sunshine. Denmark’s weather in September often features a mix of sunny and cloudy days, with an increase in cloud cover towards the month's latter half.

Read our article on the best time to visit Denmark for a more detailed month-by-month overview.

September is a lovely time to visit Denmark as the weather is still good and days are still long. The changing foliage paints the landscape glowing golden, and coffee shops often have warm, welcoming fires. Here are some top reasons to plan your trip to Denmark in September:

• Outdoor activities: With its mild weather, long days, and spectacular autumnal scenery, September is ideal for outdoor activities, such as cycling, hiking, and surfing. Denmark's extensive network of cycling routes makes it a paradise for cyclists. September's mild temperatures and vibrant autumn colors provide the perfect backdrop for a leisurely bike ride. Meanwhile, swells on the west coast of Jutland pick up, making it a good month for surfing and kitesurfing. Head to Klitmøller to surf at the famous ‘Cold Hawaii.’ From cycling and hiking along Denmark’s rugged coastline to kayaking, canoeing, and kitesurfing, there's no shortage of outdoor adventures in Denmark in September.
• Festivals and Events: From food fairs to water sports festivals, you’ll find many fun events in Denmark in September. Popular festivals include WATERZ, Scandinavia's biggest water sports festival, in Hvide Sande; Rømø Kite Festival, the largest kite festival in Europe, in the island of Rømø in Southwest Jutland; Midtfyns Festival in Funen, and Ry Outdoor Festival in the town of Ry.
• Harvest Season: The end of September marks the beginning of the harvest season in Denmark. Visit local farms and orchards to pick ripe apples, berries, and other seasonal fruits. Visit the Fjordvang Fruit Plantation on North Fyn and pick old Danish varieties like Discovery, Filippa, and Aroma.

Autumn is a wonderful time to explore Denmark's vibrant capital city, and you’ll find a wealth of things to do in Copenhagen in September. Celebrate the city's rich history at the Golden Days Festival, which features different activities throughout the metro. Visit exhibitions and film screenings, enjoy lectures and theater performances, and take guided walks. Enjoy free open-air music concerts in the famous Tivoli Gardens every Friday throughout September as part of the Fredagsrock event. From pop and rock to rap and jazz, you can listen to a range of music surrounded by the park's spectacular scenery. If you prefer classical music, the Haydn Festival celebrates the orchestra of great Danish musician and composer Joseph Haydn at the Concert Hall of the Conservatory in Frederiksberg in Copenhagen in September.

September is the best time to watch the Black Sun or Sort Sol. This incredible natural spectacle occurs when vast flocks of migratory starlings gather in the marshlands, creating mesmerizing patterns in the sky as they move in unison during sunrise or sunset. The phenomenon gets its name from the dark, swirling formations that resemble a dark cloud or veil covering the sun. Head to the Wadden Sea Centre in Ribe on the west coast of Jutland to join a guided tour and watch millions of starlings take to the skies and perform synchronized aerial maneuvers.

In September, Denmark offers ideal conditions for cycling adventures, with mild weather, spectacular landscapes, and vibrant autumn colors. Embark on a scenic cycling journey along the Baltic Sea Route, which stretches along Denmark's eastern coastline. Pedal through picturesque fishing villages, sandy beaches, and charming coastal towns like Gilleleje and Nysted. Explore Denmark's western coast on the North Sea Cycle Route, one of the world's longest continuous cycling routes. Ride through windswept dunes, rolling countryside, and historic seaside towns such as Skagen and Esbjerg. Discover the tranquil beauty of Denmark's lake district by cycling through the scenic countryside around Silkeborg and Skanderborg. Pedal along peaceful lakeshores, through lush forests, and past idyllic villages nestled amidst the rolling hills. Take advantage of a visit to Himmelbjerget, Denmark's highest natural point.

From scenic cycling routes along the coastline to fun festivals for the whole family, September in Denmark has something for everyone to enjoy. Whether exploring historic cities, meandering through charming villages, or soaking in the natural beauty of the Danish countryside, September offers a perfect blend of relaxation, exploration, and cultural discovery.

For a hassle-free trip, contact our local travel experts to organize a customized Denmark trip for a one-of-a-kind summer adventure.

More information:
Denmark in August