Ostseeküsten-Radweg, stage 4: Grossenbrode → Wismar
On stage 4 (Grossenbrode → Wismar, 138 km) the best month is September: 80% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.7 km/h on average; ERA5 2006–2025, 9:00–18:00).
← Ostseeküsten-Radweg (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 | 2% | 24% | 59 | 4 °C | 0% | 96% | 7.9 † |
| February | 5% | 21% | 47 | 4 °C | 0% | 93% | 9.7 † |
| March | 22% | 20% | 41 | 8 °C | 0% | 74% | 11.7 |
| April | 55% | 22% | 41 | 12 °C | 0% | 35% | 14.0 |
| May | 73% | 24% | 59 | 16 °C | 0% | 5% | 16.0 |
| June | 75% | 25% | 65 | 20 °C | 1% | 0% | 17.1 |
| July | 68% | 29% | 72 | 22 °C | 3% | 0% | 16.6 |
| August | 73% | 25% | 68 | 22 °C | 2% | 0% | 14.8 |
| September | 80% | 20% | 52 | 18 °C | 0% | 0% | 12.6 |
| October | 68% | 23% | 63 | 13 °C | 0% | 12% | 10.4 † |
| November | 24% | 21% | 53 | 8 °C | 0% | 69% | 8.4 † |
| December | 6% | 22% | 60 | 5 °C | 0% | 91% | 7.4 † |
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 Grossenbrode → Wismar, km/h | Headwind > 15 km/h, Grossenbrode → Wismar | Headwind > 15 km/h, Wismar → Grossenbrode | Better way |
|---|---|---|---|---|
| January | −1.9 | 23% | 15% | either |
| February | −1.7 | 21% | 15% | either |
| March | 0.0 | 17% | 16% | either |
| April | +1.4 | 12% | 16% | either |
| May | +1.6 | 12% | 15% | either |
| June | +1.8 | 10% | 15% | either |
| July | +1.2 | 11% | 15% | either |
| August | −0.1 | 12% | 12% | either |
| September | −0.7 | 16% | 14% | either |
| October | −2.4 | 21% | 13% | Wismar → Grossenbrode |
| November | −2.9 | 22% | 12% | Wismar → Grossenbrode |
| December | −2.6 | 23% | 14% | Wismar → Grossenbrode |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 342–367 | S | −3.1 |
| 367–393 | SW | −5.4 |
| 393–418 | SW | −4.8 |
| 418–443 | E | +5.0 |
| 443–468 | SE | +2.6 |
| 468–480 | E | +3.9 |
Other stages
- Flensburg → Eckernförde 118 km
- Eckernförde → Oldenburg in Holstein 122 km
- Oldenburg in Holstein → Grossenbrode 103 km
- Grossenbrode → Wismar 138 km
- Wismar → Zingst 135 km
- Zingst → Universitäts- und Hansestadt Greifswald 96 km
- Universitäts- und Hansestadt Greifswald → Swinemünde 89 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.