The Finnish archipelago is not an easy navigational area and extremely demanding. Ideal for sporty and adventurous sailors.
The Finnish archipelago is very demanding navigationally and a real challenge for sailors. The sailing area’s buoyage takes some getting used to as the barrels are not always easy to identify. It is recommended to study sea charts in detail. The listed waters are full off rocks above and below the water, and not all of the dangerous ones are well marked. This can be hazardous and problematic when anchoring. The archipelago is a difficult area and not for beginners or less experienced charter crews.
Sailing season runs from mid-May to mid-September in the archipelago. The weather is warmer on the islands than on the Finnish mainland. In summer the temperature ranges from 15 to 25 °C. The winds from the southwest blow weak to moderate, yet there are strong wind changes by the Cape and jet effects occur between the islands. In early summer the large temperature difference between cold water and heated air make strong sea winds and short, steep waves. The first autumn storms are expected at the end of September.