Østersøruten, stage 5: Klinteby Frihed → Svendborg
On stage 5 (Klinteby Frihed → Svendborg, 130 km) the best month is September: 80% of days were dry with highs of 10–30 °C, and riding Svendborg → Klinteby Frihed meant an average tailwind of 4.6 km/h (ERA5 2006–2025, 9:00–18:00).
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 1% | 22% | 57 | 4 °C | 0% | 98% | 7.7 † |
| February | 2% | 17% | 43 | 4 °C | 0% | 98% | 9.6 † |
| March | 13% | 17% | 37 | 7 °C | 0% | 85% | 11.7 |
| April | 52% | 19% | 36 | 11 °C | 0% | 41% | 14.1 |
| May | 75% | 23% | 53 | 16 °C | 0% | 5% | 16.1 |
| June | 78% | 22% | 61 | 19 °C | 0% | 0% | 17.4 |
| July | 74% | 25% | 73 | 21 °C | 1% | 0% | 16.9 |
| August | 75% | 24% | 73 | 21 °C | 0% | 0% | 15.0 |
| September | 80% | 20% | 56 | 18 °C | 0% | 0% | 12.6 |
| October | 68% | 21% | 63 | 13 °C | 0% | 14% | 10.3 † |
| November | 21% | 22% | 52 | 8 °C | 0% | 72% | 8.2 † |
| December | 3% | 19% | 54 | 5 °C | 0% | 95% | 7.2 † |
Best months are all months within 3 percentage points of the best one. † less than 11 hours of daylight — long stages get tight.
Wind by month
| Month | Wind Klinteby Frihed → Svendborg, km/h | Headwind > 15 km/h, Klinteby Frihed → Svendborg | Headwind > 15 km/h, Svendborg → Klinteby Frihed | Better way |
|---|---|---|---|---|
| January | −6.0 | 31% | 11% | Svendborg → Klinteby Frihed |
| February | −4.2 | 27% | 14% | Svendborg → Klinteby Frihed |
| March | −3.4 | 25% | 14% | Svendborg → Klinteby Frihed |
| April | −2.2 | 20% | 13% | Svendborg → Klinteby Frihed |
| May | −2.3 | 21% | 14% | Svendborg → Klinteby Frihed |
| June | −4.8 | 24% | 9% | Svendborg → Klinteby Frihed |
| July | −6.4 | 27% | 7% | Svendborg → Klinteby Frihed |
| August | −5.7 | 26% | 8% | Svendborg → Klinteby Frihed |
| September | −4.6 | 27% | 11% | Svendborg → Klinteby Frihed |
| October | −4.8 | 29% | 12% | Svendborg → Klinteby Frihed |
| November | −4.6 | 28% | 11% | Svendborg → Klinteby Frihed |
| December | −6.8 | 33% | 9% | Svendborg → Klinteby Frihed |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 504–530 | W | −4.4 |
| 530–556 | NW | −0.8 |
| 556–581 | W | −5.7 |
| 581–607 | S | −5.6 |
| 607–635 | SW | −6.3 |
Other stages
- Padborg → Svendborg 128 km
- Svendborg → Maribo 134 km
- Maribo → Stege 119 km
- Stege → Klinteby Frihed 129 km
- Klinteby Frihed → Svendborg 130 km
- Svendborg → Fredericia 134 km
- Fredericia → near Flensburg 127 km
How to read the numbers
Wind is the 10 m wind of a 25-km grid cell, daytime hours 9:00–18:00 local solar time; at saddle height in a sheltered valley it is weaker, on a coast or ridge stronger. A positive value is a tailwind. ERA5 slightly over-counts days with ≥ 1 mm of rain (by about 5–7 percentage points) and underestimates daily highs by 1–2 °C. Good day = less than 1 mm of rain between 9:00 and 18:00 (riding hours, local solar time) and a high between 10 and 30 °C; rain at night or in the evening does not spoil it.