How humid is Estonia in 2026?

Ilmateenistus 1991–2020 normals average about 82% relative humidity across the station network. Tallinn-Harku sits near 81% for the year, with January and November–December often near 89%. Tartu-Tõravere runs a little drier on the annual mean (about 79%) and usually bottoms out in May around the mid-60s before climbing again through autumn: Living in Tallinn and Living in Tartu.

Island and west-coast stations such as Sõrve (about 84% annual), Vilsandi, Ristna, and Kihnu stay moister than inland south-east sites. Pärnu’s annual mean sits near Tallinn’s band with the same winter spike: Living in Pärnu. That damp air pairs with year-round rain risk and freeze-thaw snow: Rain and Snow.

Ask about ventilation, bathroom fans, and drying space before you sign a wooden-house or panel-block lease: How to rent a home. Closed flats with wet coats drying indoors all winter need a dehumidifier plan, especially when heat is billed separately: Utilities and Winter cold.

Rare warm sticky spells still hit dense courtyards when breezes die; that overlap belongs with Summer heat. Coast wind can feel raw even when humidity is high: Wind. National framing: Weather in Estonia and Best climate.