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During August, Flensburg experiences high daytime temperatures of 22°C (72°F) and cooler nights around 13°C (55°F). As the wettest month of the year, and part of the summer season, expect frequent rainfall.
If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Flensburg.
Pick a month to see the average temperature, rainfall and sunshine in Flensburg - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Flensburg typically stay consistent throughout August, with daily highs averaging around 22°C (72°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 14°C (57°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Flensburg spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Flensburg spans 1976 to 2026, revealing these weather extremes.
Find out more about the weather in Germany and which places have the best travel conditions in this month. See all of Germany in August →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Comfortable temperatures call for an easy wardrobe in August. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Flensburg climate overview or explore weather in Germany.
Where to go in August - average daytime high across popular destinations.
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