Hanzeroute: which way and when to ride
The best month for Hanzeroute is September: 76% of days were dry with highs of 10–30 °C. In September, riding Tolkamer → Kampen meant an average tailwind of 2.0 km/h (ERA5 2006–2025, daytime 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 | 6% | 28% | 71 | 6 °C | 0% | 87% | 8.2 † |
| February | 15% | 26% | 62 | 7 °C | 0% | 78% | 9.8 † |
| March | 41% | 25% | 56 | 10 °C | 0% | 50% | 11.7 |
| April | 65% | 24% | 46 | 15 °C | 0% | 17% | 13.8 |
| May | 70% | 29% | 67 | 18 °C | 0% | 2% | 15.7 |
| June | 71% | 26% | 68 | 21 °C | 4% | 0% | 16.7 |
| July | 60% | 33% | 88 | 23 °C | 8% | 0% | 16.3 |
| August | 64% | 31% | 82 | 22 °C | 6% | 0% | 14.7 |
| September | 76% | 23% | 59 | 19 °C | 1% | 0% | 12.6 |
| October | 70% | 25% | 72 | 15 °C | 0% | 7% | 10.5 † |
| November | 33% | 26% | 63 | 10 °C | 0% | 54% | 8.7 † |
| December | 11% | 24% | 70 | 7 °C | 0% | 80% | 7.7 † |
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 Kampen → Tolkamer, km/h | Headwind > 15 km/h, Kampen → Tolkamer | Headwind > 15 km/h, Tolkamer → Kampen | Better way |
|---|---|---|---|---|
| January | −4.6 | 19% | 5% | Tolkamer → Kampen |
| February | −4.1 | 18% | 5% | Tolkamer → Kampen |
| March | −0.9 | 12% | 7% | either |
| April | +0.9 | 8% | 8% | either |
| May | +1.1 | 7% | 9% | either |
| June | +1.0 | 6% | 7% | either |
| July | −0.4 | 7% | 6% | either |
| August | −1.7 | 8% | 4% | either |
| September | −2.0 | 10% | 4% | Tolkamer → Kampen |
| October | −4.8 | 17% | 3% | Tolkamer → Kampen |
| November | −5.8 | 20% | 3% | Tolkamer → Kampen |
| December | −6.1 | 22% | 3% | Tolkamer → Kampen |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | SE | +1.4 |
| 25–51 | S | −2.2 |
| 51–76 | S | −2.2 |
| 76–102 | S | −3.4 |
| 102–128 | SW | −4.3 |
| 128–136 | SE | −0.1 |
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.