Archipelago Sea Saaristomeri
Archipelago Sea is a sea in the Eastern Baltic. It is one of the 17 sights in Finland featured on this site and is the 8th most looked-up sight in the country on English Wikipedia.
Planning a visit
The warmest months are July and August, with average temperatures of 16 °C. The coldest period is between January and March, when average temperatures are between -4 °C and -2 °C. Rainfall is highest in August and October, with about 71 mm recorded in each month.
Mariehamn Airport is the nearest airport, located 59 km away. Turku Airport is 79 km from the sea, and the site is 221 km from Helsinki. Visitors can combine a trip to the archipelago with a visit to Kastelholm Castle, which is about 47 km away.
Weather by month
The warmest month is August, averaging 16 °C. Rain is spread fairly evenly through the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average temperature, °C | -2 | -4 | -2 | 2 | 7 | 12 | 16 | 16 | 13 | 8 | 4 | 1 |
| Rainfall, mm | 47 | 32 | 34 | 28 | 32 | 48 | 49 | 71 | 57 | 71 | 69 | 59 |
| Rainy days | 14 | 10 | 9 | 8 | 7 | 6 | 11 | 13 | 11 | 13 | 14 | 15 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
