Nasjonal sykkelrute 5, stage 2: Kongsberg → Rødberg
On stage 2 (Kongsberg → Rødberg, 112 km) the best month is June: 63% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.1 km/h on average; ERA5 2006–2025, 9:00–18:00).
← Nasjonal sykkelrute 5 (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% | 26% | 84 | -4 °C | 0% | 100% | 6.7 † |
| February | 0% | 22% | 59 | -2 °C | 0% | 100% | 9.0 † |
| March | 5% | 21% | 62 | 3 °C | 0% | 95% | 11.6 |
| April | 26% | 22% | 55 | 7 °C | 0% | 73% | 14.5 |
| May | 53% | 32% | 90 | 13 °C | 0% | 31% | 17.1 |
| June | 63% | 36% | 110 | 17 °C | 0% | 3% | 18.8 |
| July | 58% | 42% | 142 | 19 °C | 0% | 0% | 18.1 |
| August | 60% | 40% | 130 | 17 °C | 0% | 1% | 15.6 |
| September | 58% | 31% | 120 | 13 °C | 0% | 19% | 12.7 |
| October | 18% | 27% | 105 | 7 °C | 0% | 78% | 10.0 † |
| November | 2% | 26% | 95 | 1 °C | 0% | 98% | 7.4 † |
| December | 0% | 27% | 81 | -3 °C | 0% | 100% | 5.9 † |
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 Kongsberg → Rødberg, km/h | Headwind > 15 km/h, Kongsberg → Rødberg | Headwind > 15 km/h, Rødberg → Kongsberg | Better way |
|---|---|---|---|---|
| January | −2.3 | 2% | 1% | Rødberg → Kongsberg |
| February | −0.9 | 1% | 1% | either |
| March | −0.8 | 2% | 1% | either |
| April | −0.9 | 5% | 0% | either |
| May | +0.2 | 2% | 1% | either |
| June | +1.1 | 2% | 1% | either |
| July | +1.8 | 1% | 0% | either |
| August | +2.1 | 1% | 1% | Kongsberg → Rødberg |
| September | +0.7 | 2% | 1% | either |
| October | +0.1 | 1% | 1% | either |
| November | −1.5 | 1% | 0% | either |
| December | −2.4 | 1% | 1% | Rødberg → Kongsberg |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in June, km/h |
|---|---|---|
| 106–131 | N | +1.8 |
| 131–156 | NW | +1.5 |
| 156–182 | NW | +1.3 |
| 182–207 | NW | +0.8 |
| 207–218 | NW | −0.5 |
Other stages
- Larvik → Kongsberg 106 km
- Kongsberg → Rødberg 112 km
- Rødberg → Gol 112 km
- Gol → near Vang 112 km
- near Vang → Vinstra 116 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.