Gedser–Helsingør: which way and when to ride
The best month for Gedser–Helsingør is September: 80% of days were dry with highs of 10–30 °C. In September, riding Gedser → Helsingør meant an average tailwind of 4.2 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 | 1% | 23% | 57 | 3 °C | 0% | 99% | 7.7 † |
| February | 1% | 17% | 43 | 4 °C | 0% | 98% | 9.6 † |
| March | 13% | 18% | 40 | 7 °C | 0% | 85% | 11.7 |
| April | 52% | 19% | 35 | 11 °C | 0% | 42% | 14.1 |
| May | 75% | 22% | 50 | 16 °C | 0% | 5% | 16.1 |
| June | 78% | 21% | 59 | 19 °C | 0% | 0% | 17.4 |
| July | 72% | 27% | 75 | 21 °C | 1% | 0% | 16.9 |
| August | 73% | 27% | 81 | 21 °C | 0% | 0% | 15.0 |
| September | 80% | 20% | 54 | 18 °C | 0% | 0% | 12.6 |
| October | 66% | 22% | 64 | 13 °C | 0% | 15% | 10.3 † |
| November | 21% | 21% | 52 | 8 °C | 0% | 72% | 8.2 † |
| December | 3% | 20% | 54 | 5 °C | 0% | 96% | 7.1 † |
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 Gedser → Helsingør, km/h | Headwind > 15 km/h, Gedser → Helsingør | Headwind > 15 km/h, Helsingør → Gedser | Better way |
|---|---|---|---|---|
| January | +5.6 | 9% | 28% | Gedser → Helsingør |
| February | +4.2 | 11% | 25% | Gedser → Helsingør |
| March | +2.6 | 11% | 21% | Gedser → Helsingør |
| April | +1.4 | 9% | 14% | either |
| May | +1.6 | 9% | 15% | either |
| June | +2.7 | 7% | 16% | Gedser → Helsingør |
| July | +3.9 | 6% | 19% | Gedser → Helsingør |
| August | +4.7 | 5% | 21% | Gedser → Helsingør |
| September | +4.2 | 8% | 22% | Gedser → Helsingør |
| October | +5.3 | 9% | 27% | Gedser → Helsingør |
| November | +5.5 | 9% | 27% | Gedser → Helsingør |
| December | +6.4 | 7% | 30% | Gedser → Helsingør |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | N | +1.4 |
| 25–50 | E | +6.2 |
| 50–75 | N | +4.5 |
| 75–101 | NE | +6.0 |
| 101–126 | NW | +0.1 |
| 126–152 | NE | +6.3 |
| 152–177 | NE | +6.5 |
| 177–203 | NW | −0.9 |
| 203–228 | NE | +5.6 |
| 228–255 | NE | +5.6 |
| 255–280 | N | +5.1 |
| 280–304 | N | +4.1 |
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.