Zelena Linija Save: which way and when to ride
The best month for Zelena Linija Save is October: 82% of days were dry with highs of 10–30 °C. In October the wind barely favours either direction — on average 0.1 km/h along the route (ERA5 2006–2025, daytime 9:00–18:00).
Also passes through Croatia
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 20% | 18% | 58 | 6 °C | 0% | 76% | 9.1 † |
| February | 36% | 20% | 55 | 9 °C | 0% | 57% | 10.3 † |
| March | 60% | 21% | 62 | 13 °C | 0% | 28% | 11.8 |
| April | 72% | 24% | 62 | 19 °C | 1% | 7% | 13.4 |
| May | 67% | 29% | 93 | 23 °C | 5% | 0% | 14.8 |
| June | 47% | 26% | 74 | 27 °C | 30% | 0% | 15.6 |
| July | 38% | 19% | 63 | 29 °C | 46% | 0% | 15.3 |
| August | 40% | 14% | 53 | 29 °C | 48% | 0% | 14.1 |
| September | 69% | 18% | 65 | 24 °C | 13% | 0% | 12.4 |
| October | 82% | 15% | 57 | 18 °C | 0% | 5% | 10.9 † |
| November | 53% | 19% | 66 | 12 °C | 0% | 37% | 9.5 † |
| December | 19% | 17% | 64 | 6 °C | 0% | 77% | 8.8 † |
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 Koraće → Brcko, km/h | Headwind > 15 km/h, Koraće → Brcko | Headwind > 15 km/h, Brcko → Koraće | Better way |
|---|---|---|---|---|
| January | +0.1 | 1% | 1% | either |
| February | +0.1 | 1% | 2% | either |
| March | +0.2 | 2% | 3% | either |
| April | +0.3 | 2% | 2% | either |
| May | +0.4 | 1% | 2% | either |
| June | +0.5 | 1% | 1% | either |
| July | +0.4 | 0% | 1% | either |
| August | 0.0 | 0% | 1% | either |
| September | +0.1 | 1% | 1% | either |
| October | −0.1 | 1% | 1% | either |
| November | −0.3 | 1% | 1% | either |
| December | +0.1 | 1% | 1% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in October, km/h |
|---|---|---|
| 0–9 | SW | +2.0 |
| 9–34 | NW | +0.3 |
| 34–58 | W | +1.6 |
| 58–84 | N | −1.7 |
| 84–109 | E | −1.1 |
| 109–134 | E | −1.0 |
| 134–159 | E | −0.6 |
| 159–185 | S | +0.8 |
| 185–190 | SE | 0.0 |
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.