Aland Islands
Intermediate
Best conditions around July 27
Finnish-Swedish archipelago — quiet, technical pilotage.
Best time to sail
The best time to sail in Finland is July to August, with peak conditions in July and August.
That verdict comes from 1991–2020 climate normals — wind, rain, sunshine, and air temperature — scored week by week for charter conditions across 1 sailing area.
Mean weekly values across our sailing areas in Finland. The sail score weighs wind, rain, sun, and temperature — and discounts tropical-storm season where one applies.
| Month | Sail score | Wind (kn) | Rain (mm/day) | Sun (h/day) | Temp (°C) |
|---|---|---|---|---|---|
| January | Fair | 12 | 1.2 | 12 | -1 |
| February | Fair | 11 | 1 | 12 | -1 |
| March | Fair | 10 | 1.1 | 12 | 1 |
| April | Fair | 9 | 1.1 | 12 | 4 |
| May | Fair | 8 | 1.2 | 12 | 9 |
| June | Fair | 7 | 1.3 | 12 | 13 |
| July | Excellent | 8 | 1.4 | 12 | 17 |
| August | Excellent | 9 | 1.9 | 12 | 17 |
| September | Fair | 10 | 1.9 | 12 | 13 |
| October | Fair | 11 | 1.8 | 12 | 8 |
| November | Fair | 11 | 1.5 | 12 | 3 |
| December | Fair | 12 | 1.5 | 12 | 1 |
Every area below is scored individually in the interactive calendar; where we have an in-depth guide, it's linked.
Intermediate
Best conditions around July 27
Finnish-Swedish archipelago — quiet, technical pilotage.
July to August offers the most reliable conditions, with July and August scoring best for wind, rain, sunshine, and temperature in the 1991–2020 climate normals.
Around 17 °C air temperature on average in July, with about 12 hours of sun a day.