Fietsen naar Praag, stage 1: Spijk → Haltern am See
On stage 1 (Spijk → Haltern am See, 116 km) the best month is September: 77% of days were dry with highs of 10–30 °C, and riding Spijk → Haltern am See meant an average tailwind of 3.0 km/h (ERA5 2006–2025, 9:00–18:00).
← Fietsen naar Praag (Whole route)
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 6% | 30% | 78 | 5 °C | 0% | 86% | 8.3 † |
| February | 16% | 26% | 66 | 7 °C | 0% | 75% | 9.9 † |
| March | 43% | 26% | 59 | 10 °C | 0% | 47% | 11.7 |
| April | 68% | 23% | 46 | 15 °C | 0% | 16% | 13.8 |
| May | 71% | 28% | 66 | 19 °C | 1% | 2% | 15.6 |
| June | 71% | 25% | 68 | 22 °C | 5% | 0% | 16.6 |
| July | 62% | 29% | 85 | 24 °C | 10% | 0% | 16.2 |
| August | 65% | 28% | 82 | 23 °C | 7% | 0% | 14.6 |
| September | 77% | 22% | 60 | 20 °C | 1% | 0% | 12.6 |
| October | 69% | 25% | 74 | 15 °C | 0% | 8% | 10.5 † |
| November | 33% | 26% | 68 | 10 °C | 0% | 53% | 8.7 † |
| December | 11% | 27% | 77 | 7 °C | 0% | 80% | 7.8 † |
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 Spijk → Haltern am See, km/h | Headwind > 15 km/h, Spijk → Haltern am See | Headwind > 15 km/h, Haltern am See → Spijk | Better way |
|---|---|---|---|---|
| January | +4.4 | 3% | 18% | Spijk → Haltern am See |
| February | +2.7 | 5% | 15% | Spijk → Haltern am See |
| March | +2.5 | 6% | 14% | Spijk → Haltern am See |
| April | +1.7 | 6% | 11% | either |
| May | +2.4 | 4% | 12% | Spijk → Haltern am See |
| June | +3.9 | 2% | 11% | Spijk → Haltern am See |
| July | +5.9 | 1% | 14% | Spijk → Haltern am See |
| August | +4.8 | 1% | 12% | Spijk → Haltern am See |
| September | +3.0 | 3% | 11% | Spijk → Haltern am See |
| October | +2.5 | 3% | 11% | Spijk → Haltern am See |
| November | +2.6 | 2% | 12% | Spijk → Haltern am See |
| December | +3.9 | 3% | 15% | Spijk → Haltern am See |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | SE | +2.0 |
| 25–51 | SE | +1.1 |
| 51–77 | E | +3.5 |
| 77–102 | E | +4.5 |
| 102–116 | NE | +4.9 |
Other stages
- Spijk → Haltern am See 116 km
- Haltern am See → Lippstadt 109 km
- Lippstadt → Warburg 107 km
- Warburg → Witzenhausen 106 km
- Witzenhausen → Philippsthal 130 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.