Sverigeleden (4): which way and when to ride
The best month for Sverigeleden (4) is June: 75% of days were dry with highs of 10–30 °C. In June the wind barely favours either direction — on average 0.2 km/h along the route (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% | 17% | 47 | -5 °C | 0% | 100% | 5.3 † |
| February | 0% | 14% | 34 | -4 °C | 0% | 100% | 8.4 † |
| March | 1% | 12% | 30 | 1 °C | 0% | 99% | 11.5 |
| April | 17% | 14% | 33 | 6 °C | 0% | 82% | 14.9 |
| May | 56% | 20% | 44 | 13 °C | 0% | 35% | 18.4 |
| June | 75% | 24% | 62 | 17 °C | 0% | 3% | 21.1 |
| July | 67% | 32% | 86 | 20 °C | 1% | 0% | 19.8 |
| August | 70% | 29% | 81 | 18 °C | 0% | 1% | 16.4 |
| September | 65% | 22% | 62 | 13 °C | 0% | 17% | 12.9 |
| October | 13% | 21% | 66 | 6 °C | 0% | 84% | 9.5 † |
| November | 1% | 20% | 50 | 0 °C | 0% | 99% | 6.2 † |
| December | 0% | 24% | 58 | -3 °C | 0% | 100% | 4.1 † |
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 near Lycksele → Holmsund, km/h | Headwind > 15 km/h, near Lycksele → Holmsund | Headwind > 15 km/h, Holmsund → near Lycksele | Better way |
|---|---|---|---|---|
| January | +1.7 | 6% | 8% | either |
| February | +1.1 | 5% | 6% | either |
| March | +1.7 | 4% | 9% | either |
| April | +2.0 | 3% | 10% | near Lycksele → Holmsund |
| May | +0.1 | 4% | 8% | either |
| June | +0.2 | 4% | 9% | either |
| July | −1.4 | 4% | 5% | either |
| August | −1.7 | 5% | 4% | either |
| September | −0.5 | 7% | 7% | either |
| October | +1.0 | 5% | 7% | either |
| November | +1.2 | 5% | 6% | either |
| December | +1.6 | 6% | 7% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in June, km/h |
|---|---|---|
| 0–25 | SE | +2.5 |
| 25–50 | S | +0.9 |
| 50–75 | SE | +1.4 |
| 75–101 | SE | +0.9 |
| 101–127 | S | −0.9 |
| 127–152 | SE | −0.2 |
| 152–177 | SE | −1.7 |
| 177–187 | S | −2.6 |
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.