Radweg D11: Ostsee – Oberbayern, stage 12: Freising → Rosenheim
On stage 12 (Freising → Rosenheim, 105 km) the best month is September: 71% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.1 km/h on average; ERA5 2006–2025, 9:00–18:00).
← Radweg D11: Ostsee – Oberbayern (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% | 25% | 79 | 3 °C | 0% | 92% | 8.8 † |
| February | 19% | 23% | 59 | 5 °C | 0% | 79% | 10.1 † |
| March | 39% | 26% | 70 | 10 °C | 0% | 53% | 11.8 |
| April | 60% | 30% | 72 | 15 °C | 0% | 24% | 13.6 |
| May | 57% | 42% | 143 | 18 °C | 0% | 6% | 15.2 |
| June | 57% | 38% | 134 | 22 °C | 5% | 1% | 16.0 |
| July | 55% | 37% | 132 | 24 °C | 9% | 0% | 15.7 |
| August | 57% | 35% | 136 | 23 °C | 9% | 0% | 14.3 |
| September | 71% | 28% | 99 | 19 °C | 0% | 3% | 12.5 |
| October | 65% | 23% | 77 | 14 °C | 0% | 21% | 10.7 † |
| November | 28% | 21% | 67 | 8 °C | 0% | 67% | 9.2 † |
| December | 7% | 27% | 77 | 4 °C | 0% | 91% | 8.4 † |
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 Freising → Rosenheim, km/h | Headwind > 15 km/h, Freising → Rosenheim | Headwind > 15 km/h, Rosenheim → Freising | Better way |
|---|---|---|---|---|
| January | +0.4 | 2% | 2% | either |
| February | +0.8 | 1% | 2% | either |
| March | +1.4 | 1% | 3% | either |
| April | +2.0 | 1% | 2% | either |
| May | +2.0 | 0% | 1% | Freising → Rosenheim |
| June | +2.3 | 0% | 1% | Freising → Rosenheim |
| July | +2.1 | 0% | 1% | Freising → Rosenheim |
| August | +1.3 | 0% | 0% | either |
| September | +1.1 | 0% | 1% | either |
| October | +0.5 | 0% | 1% | either |
| November | 0.0 | 1% | 1% | either |
| December | −0.4 | 1% | 1% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 1,420–1,445 | SW | −0.1 |
| 1,445–1,472 | S | +0.8 |
| 1,472–1,497 | SE | +2.2 |
| 1,497–1,525 | E | +1.3 |
Other stages
- Warnemünde → Waren 142 km
- Waren → Zehdenick 138 km
- Zehdenick → Potsdam 122 km
- Potsdam → Gräfenhainichen 124 km
- Gräfenhainichen → Halle (Saale) 142 km
- Halle (Saale) → Jena 114 km
- Jena → Rosenthal 137 km
- Rosenthal → Lichtenfels 134 km
- Lichtenfels → Nuremberg 117 km
- Nuremberg → Kelheim 128 km
- Kelheim → Freising 127 km
- Freising → Rosenheim 105 km
- Rosenheim → Freilassing 90 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.