Sverigeleden (9): which way and when to ride
The best month for Sverigeleden (9) is June: 74% of days were dry with highs of 10–30 °C. In June the wind barely favours either direction — on average 0.1 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% | 20% | 49 | -4 °C | 0% | 100% | 5.6 † |
| February | 0% | 14% | 31 | -3 °C | 0% | 100% | 8.6 † |
| March | 2% | 13% | 31 | 2 °C | 0% | 98% | 11.5 |
| April | 23% | 16% | 34 | 7 °C | 0% | 76% | 14.8 |
| May | 57% | 22% | 51 | 13 °C | 0% | 31% | 18.0 |
| June | 74% | 25% | 62 | 18 °C | 0% | 2% | 20.4 |
| July | 69% | 31% | 84 | 20 °C | 1% | 0% | 19.3 |
| August | 69% | 31% | 86 | 18 °C | 0% | 0% | 16.2 |
| September | 64% | 25% | 69 | 13 °C | 0% | 16% | 12.8 |
| October | 16% | 22% | 64 | 6 °C | 0% | 81% | 9.6 † |
| November | 1% | 19% | 49 | 1 °C | 0% | 99% | 6.5 † |
| December | 0% | 21% | 54 | -2 °C | 0% | 100% | 4.6 † |
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 Åsele → near Sundsvall, km/h | Headwind > 15 km/h, Åsele → near Sundsvall | Headwind > 15 km/h, near Sundsvall → Åsele | Better way |
|---|---|---|---|---|
| January | −0.4 | 5% | 4% | either |
| February | −0.7 | 4% | 4% | either |
| March | −0.2 | 4% | 5% | either |
| April | +1.3 | 3% | 7% | either |
| May | −0.2 | 4% | 6% | either |
| June | +0.1 | 3% | 6% | either |
| July | −0.7 | 3% | 4% | either |
| August | −1.6 | 4% | 3% | either |
| September | −1.6 | 5% | 4% | either |
| October | −0.8 | 4% | 4% | either |
| November | −0.6 | 4% | 4% | either |
| December | −0.6 | 5% | 3% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in June, km/h |
|---|---|---|
| 0–26 | S | −0.5 |
| 26–51 | SW | −1.0 |
| 51–76 | SW | −2.3 |
| 76–101 | S | −0.2 |
| 101–127 | S | −0.1 |
| 127–153 | SE | +2.3 |
| 153–178 | SE | +1.7 |
| 178–203 | SE | +2.0 |
| 203–229 | S | +0.3 |
| 229–254 | S | −0.2 |
| 254–268 | SW | −0.8 |
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.