Østersøruten, stage 4: Stege → Klinteby Frihed
On stage 4 (Stege → Klinteby Frihed, 129 km) the best month is September: 80% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.9 km/h on average; 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% | 56 | 3 °C | 0% | 99% | 7.7 † |
| February | 1% | 16% | 41 | 4 °C | 0% | 98% | 9.6 † |
| March | 14% | 17% | 38 | 7 °C | 0% | 84% | 11.7 |
| April | 53% | 19% | 35 | 11 °C | 0% | 40% | 14.0 |
| May | 76% | 21% | 48 | 16 °C | 0% | 5% | 16.1 |
| June | 79% | 20% | 58 | 19 °C | 0% | 0% | 17.4 |
| July | 73% | 26% | 73 | 22 °C | 1% | 0% | 16.8 |
| August | 75% | 25% | 76 | 21 °C | 0% | 0% | 14.9 |
| September | 80% | 20% | 52 | 18 °C | 0% | 0% | 12.6 |
| October | 68% | 21% | 60 | 13 °C | 0% | 14% | 10.3 † |
| November | 22% | 20% | 50 | 8 °C | 0% | 71% | 8.3 † |
| December | 3% | 19% | 52 | 5 °C | 0% | 97% | 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 Stege → Klinteby Frihed, km/h | Headwind > 15 km/h, Stege → Klinteby Frihed | Headwind > 15 km/h, Klinteby Frihed → Stege | Better way |
|---|---|---|---|---|
| January | −1.5 | 23% | 19% | either |
| February | −0.9 | 22% | 20% | either |
| March | −1.2 | 22% | 19% | either |
| April | −0.9 | 21% | 18% | either |
| May | −1.0 | 21% | 19% | either |
| June | −2.3 | 24% | 16% | Klinteby Frihed → Stege |
| July | −2.7 | 25% | 16% | Klinteby Frihed → Stege |
| August | −1.6 | 21% | 16% | either |
| September | −0.9 | 23% | 20% | either |
| October | −0.5 | 22% | 19% | either |
| November | −0.3 | 19% | 18% | either |
| December | −1.6 | 23% | 17% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 376–401 | E | +5.7 |
| 401–426 | W | −5.3 |
| 426–452 | W | −4.3 |
| 452–477 | N | +1.9 |
| 477–502 | NW | −3.0 |
| 502–505 | NW | +1.4 |
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.