Looking for things to do in Helsinki? Start at Senate Square and its white cathedral, walk along Market Square to the Orthodox Uspenski Cathedral, take the ferry to the Suomenlinna sea fortress, step into the rock-hewn Temppeliaukio Church, visit the Oodi library and try a public sauna by the sea. To visit Helsinki, allow 2 to 3 days, plus a day trip to Tallinn by ferry if you like. The best time is May to August: in June, the sun sets around 10:48 p.m.
The capital of Finland, on the Baltic, Helsinki is a human-scale city, easy to explore on foot and by tram. This guide covers the highlights, the public saunas, the Tallinn day trip, an itinerary, the neighborhoods, the official climate and our month-by-month calculation of day length and sunset time.
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LanguagesFinnish and Swedish (bilingual signs); English very widely spoken
Currencyeuro (€)
Time zoneUTC+2 (UTC+3 in summer): 2 hours ahead of London and 7 hours ahead of New York for most of the year
AirportHelsinki-Vantaa (HEL), linked to the city center by commuter train
EntrySchengen area: UK citizens need no visa for up to 90 days in any 180-day period; US citizens need a passport valid at least 3 months beyond their stay (travel.state.gov, GOV.UK)
Ideal length2 to 3 days, 4 with Tallinn
Best timeMay to August; December for the Christmas atmosphere
Things to do in Helsinki: the highlights
Senate Square and the cathedral
The neoclassical heart of the city, Senate Square is dominated by the Lutheran Helsinki Cathedral, white with green domes, at the top of a great flight of steps. Around it stand the Government Palace and the main building of the university.
Market Square, the Old Market Hall and Uspenski
On the South Harbour, Market Square (Kauppatori) has stalls of local produce and small eateries; the neighboring brick Old Market Hall is covered. Just to the east, on a hill, the red-brick Orthodox Uspenski Cathedral with its golden domes recalls the city’s Russian period. The SkyWheel and Allas Sea Pool, with pools and a sauna on the harbor, are a few steps away.
Suomenlinna fortress
A UNESCO World Heritage Site, the Suomenlinna sea fortress spreads across several islands linked by bridges. A ferry on the HSL public transport network leaves from Market Square all year. People come for the ramparts, cannons, museums and waterside picnics; allow half a day.
Temppeliaukio, the rock church
Temppeliaukio Church was hewn into a granite outcrop and topped with a copper dome. Its acoustics also make it a concert venue. It is closed to visitors during services and ceremonies: check the opening times.
Oodi, Ateneum, Kiasma and the Design District
Around Railway Square and Kansalaistori square you will find the Oodi library (free, with a terrace on the top floor), the Ateneum museum (classic Finnish art) and the Kiasma museum of contemporary art. Further south, the Design District brings together designer shops, galleries and the Design Museum.
Public saunas
The sauna is part of Finnish life. Helsinki has several public saunas, often by the sea with a chance to swim: Löyly in the Hernesaari district, Allas Sea Pool on the harbor, or historic neighborhood saunas. Book online for evening slots. Etiquette: shower first, swimwear depending on the venue, a towel to sit on.
Sibelius Park, Seurasaari and nature
The Sibelius Monument, made of steel tubes that evoke organ pipes, stands in a seaside park. The island of Seurasaari, reached by a bridge, holds an open-air museum of old rural houses. For a real forest, Nuuksio National Park can be reached by public transport.
Day trip to Tallinn by ferry
Tallinn, the capital of Estonia, lies across the Gulf of Finland. Several companies (Tallink Silja, Viking Line, Eckerö Line) run daily crossings between the two ports, making a day trip or a two-capital combination possible. Crossing times and schedules vary by ship and season: check the companies’ websites. Carry your passport and check Estonia’s entry rules on travel.state.gov or GOV.UK.
Itinerary: Helsinki in 3 days
Day 1: Senate Square and the cathedral, Market Square, the Old Market Hall, Uspenski, the Esplanadi; sauna in the evening
Day 2: Suomenlinna in the morning; in the afternoon Temppeliaukio, Oodi, Ateneum or Kiasma
Day 3: Design District, Sibelius Park and Seurasaari; or a day trip to Tallinn, or Porvoo, a small old town to the east
Daylight: day length and sunset in Helsinki
At 60° north, Helsinki swings from very short winter days to very bright summer nights. We calculated day length and sunset time on the 15th of each month, compared with London.
Month
Day length in Helsinki
Sunset (local time)
Day length in London
January
6 h 45
3:52 p.m.
8 h 20
February
9 h 15
5:12 p.m.
9 h 55
March
11 h 45
6:24 p.m.
11 h 45
April
14 h 35
8:40 p.m.
13 h 50
May
17 h 10
9:54 p.m.
15 h 35
June
18 h 55
10:48 p.m.
16 h 35
July
18 h 05
10:30 p.m.
16 h 15
August
15 h 40
9:16 p.m.
14 h 40
September
12 h 55
7:42 p.m.
12 h 45
October
10 h 15
6:12 p.m.
10 h 45
November
7 h 30
3:50 p.m.
8 h 55
December
5 h 55
3:12 p.m.
7 h 55
Destination de Voyage calculation: sun above the horizon (−0.833° threshold, refraction included; NOAA solar algorithm, 2 to 5-minute steps), on the 15th of each month of 2026, Helsinki time (UTC+2, UTC+3 in summer). London day length: same method, rounded to 5 minutes.
In June, with 18 h 55 of daylight and sunset around 10:48 p.m., the evenings are almost nightless; Midsummer (Juhannus) celebrates the longest day of the year, and many residents head to the countryside (MyHelsinki, the city’s official site).
In December, the day lasts only about 5 h 55 and the sun sets around 3:12 p.m.: plan outdoor visits for late morning.
For the northern lights, head to Lapland instead: they are rarely visible in Helsinki because of the latitude and city lights.
When to go to Helsinki
Go between May and August: July is the warmest month (average high 21.9 °C, or 71 °F) and June the sunniest (297 hours). August is the wettest (81 mm, or 3.2 in). In winter, highs stay around 0 °C (32 °F) from December to February, the sea can freeze near the shore and the days are short; it is sauna season and, in December, Christmas market time (see our selection of Christmas markets in Europe).
Month
High
Low
Precip.
Sunshine (h)
Verdict
January
−0.7 °C (31 °F)
−5.6 °C (22 °F)
53 mm (2.1 in)
37
⚠️ Cold, very short days
February
−1.3 °C (30 °F)
−6.3 °C (21 °F)
38 mm (1.5 in)
71
⚠️ The coldest month
March
2.3 °C (36 °F)
−3.6 °C (26 °F)
34 mm (1.3 in)
140
⚠️ Still cold, more light
April
8.1 °C (47 °F)
1.1 °C (34 °F)
34 mm (1.3 in)
195
⚠️ Cool spring
May
14.6 °C (58 °F)
6.4 °C (44 °F)
38 mm (1.5 in)
285
✅ Bright and mild
June
18.8 °C (66 °F)
11.2 °C (52 °F)
60 mm (2.4 in)
297
✅ Sunniest, bright nights
July
21.9 °C (71 °F)
14.5 °C (58 °F)
57 mm (2.2 in)
291
✅ Warmest
August
20.5 °C (69 °F)
13.5 °C (56 °F)
81 mm (3.2 in)
239
✅ Warm but wetter
September
15.4 °C (60 °F)
9.3 °C (49 °F)
56 mm (2.2 in)
150
✅ Mild, fewer people
October
9.2 °C (49 °F)
4.2 °C (40 °F)
73 mm (2.9 in)
93
⚠️ Rain, shortening days
November
4.4 °C (40 °F)
0.4 °C (33 °F)
69 mm (2.7 in)
36
❌ Grey, dark and damp
December
1.4 °C (35 °F)
−2.9 °C (27 °F)
58 mm (2.3 in)
28
⚠️ Dark but Christmas markets
Source: 1991-2020 normals for the Helsinki Kaisaniemi station (city center) published by the Finnish Meteorological Institute (FMI).
From the airport: according to HSL, the regional transport authority (hsl.fi, checked 26 October 2026), the I and P commuter trains link the airport to the city center in about 30 minutes; you need an HSL ticket for zones ABC, sold in the HSL app and at ticket machines, not on board.
In the city: trams, metro, buses and the Suomenlinna ferry on the HSL network; tickets in the HSL app.
On foot: the center, from the station to Market Square, is easy to cover on foot.
Winter: wear footwear suited to snow and ice, even in the city.
Where to stay in Helsinki
Area
Best for
Highlights
Kluuvi and Kamppi (center)
First visit
Station, airport trains, shops, everything on foot
Kruununhaka and Katajanokka
Quiet, near the harbor
Market Square, Uspenski, ferry terminals
Punavuori and the Design District
Shops and restaurants
Neighborhood feel, close to the sea
Kallio
Tight budget, nightlife
Bars, neighborhood saunas, metro
Entry requirements, health and safety
US citizens: Finland is in the Schengen area. Your passport should be valid for at least three months beyond your stay, and you need sufficient proof of funds and a return ticket (U.S. Department of State, travel.state.gov, last updated May 14, 2026).
UK citizens: no visa for up to 90 days in any 180-day period as a tourist; your passport must have been issued less than 10 years before you arrive and be valid at least 3 months after you leave the Schengen area. You may be asked for proof of accommodation, a return ticket and sufficient funds. The EU Entry/Exit System (EES) is being implemented: fingerprints and a photo may be taken at your first entry (GOV.UK, updated 11 August 2026).
Health: GOV.UK lists insect bites and ticks among health risks in Finland; UK travellers need a GHIC or EHIC for state healthcare, and everyone should have travel insurance that covers medical costs.
Safety: according to GOV.UK, pickpockets may target tourists in crowded areas in the tourist season; the State Department describes Finland’s crime rate as low.
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