Sverigeleden (19): which way and when to ride
The best month for Sverigeleden (19) is September: 76% of days were dry with highs of 10–30 °C. In September, riding near Askersund → near Borlänge meant an average tailwind of 2.6 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% | 19% | 51 | -1 °C | 0% | 100% | 6.7 † |
| February | 1% | 15% | 36 | 0 °C | 0% | 99% | 9.1 † |
| March | 11% | 15% | 34 | 4 °C | 0% | 89% | 11.6 |
| April | 45% | 17% | 36 | 10 °C | 0% | 51% | 14.4 |
| May | 68% | 26% | 62 | 15 °C | 0% | 13% | 17.0 |
| June | 70% | 30% | 74 | 20 °C | 1% | 0% | 18.7 |
| July | 65% | 33% | 95 | 21 °C | 2% | 0% | 18.0 |
| August | 66% | 34% | 96 | 20 °C | 0% | 0% | 15.6 |
| September | 76% | 21% | 60 | 16 °C | 0% | 4% | 12.7 |
| October | 35% | 21% | 62 | 9 °C | 0% | 55% | 10.0 † |
| November | 5% | 21% | 52 | 4 °C | 0% | 93% | 7.4 † |
| December | 0% | 20% | 52 | 1 °C | 0% | 99% | 6.0 † |
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 Borlänge → near Askersund, km/h | Headwind > 15 km/h, near Borlänge → near Askersund | Headwind > 15 km/h, near Askersund → near Borlänge | Better way |
|---|---|---|---|---|
| January | −1.5 | 9% | 3% | either |
| February | −1.5 | 7% | 3% | either |
| March | −0.7 | 6% | 4% | either |
| April | +0.1 | 5% | 5% | either |
| May | −1.1 | 6% | 5% | either |
| June | −2.0 | 5% | 3% | near Askersund → near Borlänge |
| July | −2.4 | 5% | 2% | near Askersund → near Borlänge |
| August | −3.2 | 6% | 2% | near Askersund → near Borlänge |
| September | −2.6 | 8% | 3% | near Askersund → near Borlänge |
| October | −2.3 | 9% | 4% | near Askersund → near Borlänge |
| November | −1.8 | 8% | 5% | either |
| December | −2.2 | 11% | 3% | near Askersund → near Borlänge |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–26 | S | −1.7 |
| 26–51 | SE | −1.0 |
| 51–76 | SW | −3.1 |
| 76–102 | S | −3.0 |
| 102–127 | SW | −3.5 |
| 127–152 | S | −2.6 |
| 152–178 | S | −3.2 |
| 178–203 | S | −2.8 |
| 203–220 | S | −2.5 |
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.