Radroute Saar-Mosel-Main: which way and when to ride
The best month for Radroute Saar-Mosel-Main is September: 79% of days were dry with highs of 10–30 °C. In September the wind barely favours either direction — on average 1.5 km/h along the route (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 | 4% | 27% | 74 | 3 °C | 0% | 94% | 8.5 † |
| February | 11% | 24% | 57 | 5 °C | 0% | 86% | 10.0 † |
| March | 36% | 26% | 61 | 9 °C | 0% | 57% | 11.7 |
| April | 64% | 24% | 50 | 14 °C | 0% | 23% | 13.7 |
| May | 69% | 30% | 77 | 18 °C | 0% | 4% | 15.4 |
| June | 68% | 28% | 73 | 22 °C | 5% | 0% | 16.3 |
| July | 63% | 27% | 73 | 24 °C | 11% | 0% | 15.9 |
| August | 66% | 25% | 74 | 23 °C | 9% | 0% | 14.4 |
| September | 79% | 20% | 63 | 19 °C | 1% | 1% | 12.5 |
| October | 64% | 22% | 65 | 14 °C | 0% | 19% | 10.6 † |
| November | 21% | 25% | 66 | 8 °C | 0% | 71% | 8.9 † |
| December | 4% | 27% | 79 | 4 °C | 0% | 92% | 8.1 † |
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 Sarreguemines → Hohenberg an der Eger, km/h | Headwind > 15 km/h, Sarreguemines → Hohenberg an der Eger | Headwind > 15 km/h, Hohenberg an der Eger → Sarreguemines | Better way |
|---|---|---|---|---|
| January | +3.5 | 2% | 14% | Sarreguemines → Hohenberg an der Eger |
| February | +2.5 | 4% | 12% | Sarreguemines → Hohenberg an der Eger |
| March | +1.7 | 4% | 11% | either |
| April | +0.5 | 4% | 7% | either |
| May | +1.0 | 3% | 7% | either |
| June | +1.6 | 2% | 6% | either |
| July | +3.2 | 1% | 8% | Sarreguemines → Hohenberg an der Eger |
| August | +2.7 | 1% | 6% | Sarreguemines → Hohenberg an der Eger |
| September | +1.5 | 2% | 6% | either |
| October | +2.1 | 2% | 9% | Sarreguemines → Hohenberg an der Eger |
| November | +2.7 | 2% | 11% | Sarreguemines → Hohenberg an der Eger |
| December | +3.6 | 2% | 13% | Sarreguemines → Hohenberg an der Eger |
Stages
The route is split into 8 stages of about 100–150 km between towns; each stage has its own page.
| Stage | km | Best month | Tailwind Sarreguemines → Hohenberg an der Eger in September, km/h |
|---|---|---|---|
| 1. Sarreguemines → Trier | 120 | September | +0.2 |
| 2. Trier → Cochem | 141 | September | +2.6 |
| 3. Cochem → Mainz | 153 | September | +1.4 |
| 4. Mainz → Miltenberg | 132 | September | +1.2 |
| 5. Miltenberg → Würzburg | 132 | September | +1.5 |
| 6. Würzburg → Haßfurt | 121 | September | +1.3 |
| 7. Haßfurt → Bayreuth | 133 | September | +1.7 |
| 8. Bayreuth → Hohenberg an der Eger | 85 | September | +2.4 |
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.