Nasjonal sykkelrute 7 Lillehammer-Trondheim, stage 4: near Berkåk → Trondheim
On stage 4 (near Berkåk → Trondheim, 101 km) the best month is September: 55% of days were dry with highs of 10–30 °C, and riding near Berkåk → Trondheim meant an average tailwind of 2.3 km/h (ERA5 2006–2025, 9:00–18:00).
← Nasjonal sykkelrute 7 Lillehammer-Trondheim (Whole route)
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 0% | 30% | 100 | -1 °C | 0% | 100% | 5.7 † |
| February | 0% | 33% | 85 | 0 °C | 0% | 100% | 8.6 † |
| March | 3% | 36% | 109 | 4 °C | 0% | 97% | 11.5 |
| April | 23% | 38% | 81 | 8 °C | 0% | 74% | 14.8 |
| May | 48% | 40% | 84 | 13 °C | 0% | 36% | 18.0 |
| June | 55% | 43% | 116 | 16 °C | 0% | 9% | 20.4 |
| July | 55% | 43% | 117 | 19 °C | 2% | 1% | 19.3 |
| August | 55% | 45% | 129 | 18 °C | 0% | 1% | 16.2 |
| September | 55% | 41% | 112 | 14 °C | 0% | 14% | 12.8 |
| October | 21% | 36% | 109 | 8 °C | 0% | 71% | 9.7 † |
| November | 3% | 31% | 89 | 3 °C | 0% | 96% | 6.6 † |
| December | 0% | 32% | 99 | 0 °C | 0% | 100% | 4.7 † |
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 Berkåk → Trondheim, km/h | Headwind > 15 km/h, near Berkåk → Trondheim | Headwind > 15 km/h, Trondheim → near Berkåk | Better way |
|---|---|---|---|---|
| January | +5.4 | 0% | 7% | near Berkåk → Trondheim |
| February | +4.4 | 0% | 4% | near Berkåk → Trondheim |
| March | +3.3 | 0% | 5% | near Berkåk → Trondheim |
| April | +1.4 | 0% | 3% | either |
| May | +0.5 | 0% | 3% | either |
| June | −0.6 | 0% | 2% | either |
| July | −0.6 | 0% | 1% | either |
| August | +0.6 | 0% | 2% | either |
| September | +2.3 | 0% | 4% | near Berkåk → Trondheim |
| October | +3.4 | 0% | 4% | near Berkåk → Trondheim |
| November | +4.5 | 0% | 4% | near Berkåk → Trondheim |
| December | +5.5 | 0% | 5% | near Berkåk → Trondheim |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 338–364 | N | +2.3 |
| 364–389 | N | +2.4 |
| 389–414 | E | +1.9 |
| 414–439 | NE | +2.7 |
Other stages
- Lillehammer → Otta 118 km
- Otta → near Dombås 110 km
- near Dombås → near Berkåk 110 km
- near Berkåk → Trondheim 101 km
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.