Cykelspåret (20): which way and when to ride
The best month for Cykelspåret (20) is June: 78% of days were dry with highs of 10–30 °C. In June, riding Norrfjärden → Töre meant an average tailwind of 2.0 km/h (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 | 0% | 18% | 48 | -6 °C | 0% | 100% | 4.6 † |
| February | 0% | 15% | 34 | -5 °C | 0% | 100% | 8.1 † |
| March | 0% | 11% | 30 | -1 °C | 0% | 100% | 11.4 |
| April | 7% | 13% | 34 | 4 °C | 0% | 93% | 15.2 |
| May | 48% | 15% | 41 | 11 °C | 0% | 48% | 18.9 |
| June | 78% | 20% | 56 | 16 °C | 0% | 3% | 23.0 |
| July | 76% | 23% | 67 | 19 °C | 1% | 0% | 20.7 |
| August | 75% | 25% | 71 | 18 °C | 0% | 1% | 16.7 |
| September | 64% | 23% | 68 | 13 °C | 0% | 17% | 12.9 |
| October | 12% | 19% | 66 | 6 °C | 0% | 85% | 9.4 † |
| November | 0% | 20% | 54 | 0 °C | 0% | 100% | 5.8 † |
| December | 0% | 24% | 60 | -3 °C | 0% | 100% | 3.2 † |
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 Norrfjärden → Töre, km/h | Headwind > 15 km/h, Norrfjärden → Töre | Headwind > 15 km/h, Töre → Norrfjärden | Better way |
|---|---|---|---|---|
| January | +1.1 | 7% | 13% | either |
| February | +2.0 | 5% | 13% | Norrfjärden → Töre |
| March | +2.3 | 4% | 12% | Norrfjärden → Töre |
| April | +0.7 | 6% | 6% | either |
| May | +1.4 | 5% | 8% | either |
| June | +2.0 | 5% | 8% | Norrfjärden → Töre |
| July | +1.5 | 5% | 7% | either |
| August | +2.4 | 5% | 11% | Norrfjärden → Töre |
| September | +3.2 | 6% | 13% | Norrfjärden → Töre |
| October | +2.1 | 8% | 12% | Norrfjärden → Töre |
| November | +2.1 | 6% | 13% | Norrfjärden → Töre |
| December | +2.1 | 7% | 14% | Norrfjärden → Töre |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in June, km/h |
|---|---|---|
| 0–25 | NE | +2.3 |
| 25–51 | E | −0.1 |
| 51–78 | NE | +3.3 |
| 78–103 | N | +3.7 |
| 103–128 | NE | +1.4 |
| 128–137 | SE | +0.4 |
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.