Radroute Saar-Mosel-Main, stage 1: Sarreguemines → Trier
On stage 1 (Sarreguemines → Trier, 120 km) the best month is September: 78% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.2 km/h on average; ERA5 2006–2025, 9:00–18:00).
← Radroute Saar-Mosel-Main (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 | 4% | 30% | 91 | 4 °C | 0% | 91% | 8.6 † |
| February | 13% | 26% | 70 | 6 °C | 0% | 82% | 10.1 † |
| March | 38% | 28% | 72 | 10 °C | 0% | 51% | 11.7 |
| April | 64% | 26% | 56 | 15 °C | 0% | 20% | 13.7 |
| May | 68% | 30% | 80 | 18 °C | 0% | 3% | 15.3 |
| June | 68% | 27% | 75 | 22 °C | 5% | 0% | 16.2 |
| July | 65% | 25% | 69 | 24 °C | 11% | 0% | 15.9 |
| August | 67% | 24% | 72 | 23 °C | 9% | 0% | 14.4 |
| September | 78% | 21% | 71 | 19 °C | 1% | 0% | 12.5 |
| October | 65% | 24% | 78 | 14 °C | 0% | 14% | 10.7 † |
| November | 22% | 29% | 82 | 8 °C | 0% | 67% | 9.0 † |
| December | 6% | 29% | 99 | 5 °C | 0% | 88% | 8.2 † |
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 Sarreguemines → Trier, km/h | Headwind > 15 km/h, Sarreguemines → Trier | Headwind > 15 km/h, Trier → Sarreguemines | Better way |
|---|---|---|---|---|
| January | +2.0 | 3% | 7% | Sarreguemines → Trier |
| February | +2.2 | 3% | 8% | Sarreguemines → Trier |
| March | +0.4 | 4% | 6% | either |
| April | −0.5 | 4% | 3% | either |
| May | −0.9 | 4% | 3% | either |
| June | −1.2 | 3% | 2% | either |
| July | −1.3 | 2% | 2% | either |
| August | −0.3 | 2% | 2% | either |
| September | +0.2 | 2% | 3% | either |
| October | +2.5 | 2% | 6% | Sarreguemines → Trier |
| November | +3.1 | 2% | 8% | Sarreguemines → Trier |
| December | +3.0 | 2% | 8% | Sarreguemines → Trier |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | NW | −0.6 |
| 25–51 | NW | −0.9 |
| 51–76 | NW | −0.5 |
| 76–101 | N | +1.0 |
| 101–120 | N | +2.2 |
Other stages
- Sarreguemines → Trier 120 km
- Trier → Cochem 141 km
- Cochem → Mainz 153 km
- Mainz → Miltenberg 132 km
- Miltenberg → Würzburg 132 km
- Würzburg → Haßfurt 121 km
- Haßfurt → Bayreuth 133 km
- Bayreuth → Hohenberg an der Eger 85 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.