Østkystruten, stage 5: Fredericia → Haderslev
On stage 5 (Fredericia → Haderslev, 100 km) the best month is September: 75% of days were dry with highs of 10–30 °C, and riding Haderslev → Fredericia meant an average tailwind of 4.8 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% | 23% | 63 | 4 °C | 0% | 98% | 7.7 † |
| February | 2% | 20% | 50 | 4 °C | 0% | 97% | 9.5 † |
| March | 17% | 20% | 44 | 7 °C | 0% | 82% | 11.7 |
| April | 53% | 22% | 45 | 12 °C | 0% | 38% | 14.1 |
| May | 71% | 26% | 60 | 16 °C | 0% | 5% | 16.2 |
| June | 74% | 26% | 69 | 19 °C | 0% | 0% | 17.4 |
| July | 68% | 32% | 84 | 21 °C | 0% | 0% | 16.9 |
| August | 69% | 30% | 80 | 21 °C | 0% | 0% | 15.0 |
| September | 75% | 25% | 64 | 17 °C | 0% | 0% | 12.6 |
| October | 64% | 26% | 71 | 13 °C | 0% | 13% | 10.3 † |
| November | 21% | 23% | 56 | 8 °C | 0% | 71% | 8.2 † |
| December | 4% | 22% | 64 | 5 °C | 0% | 94% | 7.1 † |
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 Fredericia → Haderslev, km/h | Headwind > 15 km/h, Fredericia → Haderslev | Headwind > 15 km/h, Haderslev → Fredericia | Better way |
|---|---|---|---|---|
| January | −6.0 | 27% | 6% | Haderslev → Fredericia |
| February | −4.8 | 24% | 8% | Haderslev → Fredericia |
| March | −3.2 | 20% | 9% | Haderslev → Fredericia |
| April | −1.5 | 14% | 9% | either |
| May | −1.8 | 15% | 8% | either |
| June | −3.5 | 16% | 4% | Haderslev → Fredericia |
| July | −5.0 | 18% | 3% | Haderslev → Fredericia |
| August | −5.7 | 20% | 3% | Haderslev → Fredericia |
| September | −4.8 | 21% | 5% | Haderslev → Fredericia |
| October | −5.8 | 25% | 6% | Haderslev → Fredericia |
| November | −5.6 | 25% | 6% | Haderslev → Fredericia |
| December | −6.9 | 28% | 5% | Haderslev → Fredericia |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 496–522 | SW | −6.4 |
| 522–547 | S | −2.9 |
| 547–572 | S | −4.0 |
| 572–596 | SW | −6.0 |
Other stages
- near Skagen → Hals 96 km
- Hals → Grenaa 139 km
- Grenaa → Horsens 148 km
- Horsens → Fredericia 117 km
- Fredericia → Haderslev 100 km
- Haderslev → Sønderborg 68 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.