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Official Languages: Swedish

English is commonly spoken in tourism businesses, hotels, restaurants, and transport services. Swedish is the main local language, and some people also speak Finnish.

Mobile Network: Mobile coverage is generally good in Mariehamn and on main inhabited islands, but signal can be weaker on remote islands, at sea, or during ferry crossings.

Roaming/SIM/eSIM: If you arrive from another EU or EEA country, roaming may often be the simplest option, but check your operator because Aland Islands can be treated differently from mainland Finland by some providers. A local SIM from a Finnish operator may work well for longer stays, though availability on the islands can be more limited than in large mainland cities. eSIM is usually the easiest choice for short stays if your phone supports it, especially if you want data ready on arrival without searching for a shop.

Cards are widely accepted in hotels, restaurants, supermarkets, ferries, and many small businesses. Contactless payment is common, but carrying a small amount of cash is useful for small purchases, rural kiosks, markets, or places with temporary card issues.

Tipping is not obligatory. Service is usually included in prices. In restaurants and taxis, people commonly round up the bill or leave a small extra amount for very good service, but there is no strong expectation.

Plug Type: Type C and Type F

Voltage: 230 V, 50 Hz

Adapter: If you come from most of continental Europe, typically no adapter is needed. Visitors from the UK, Ireland, North America, and many other regions usually need a plug adapter, and some countries also require a voltage-compatible device or converter.