When is the best time to go to Tallinn: monthly weather and seasons

Tallinn sits on the shore of the Gulf of Finland, and the weather here is changeable. Even in the height of summer, the water in the gulf stays cool (as of 09/2026, visittallinn.ee). The warm season is short, but winter drags on for a long time.

Your travel dates matter more than your hotel in Tallinn. The month determines air temperature, rain, the price of a night in the center, and lines at museum ticket offices. Below you will find monthly weather, the four seasons, opening hours for the main museums, and the honest catches of each period.

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Best time to visit Tallinn

💡 In short:

• Best time to go: from the second half of May through August. This is when temperatures are highest and there is the most sun.
• Swimming is comfortable only in July and August; in June the water is around 11 °C.
• Prices and museum opening hours: 09/2026, checked on the official Kumu website.

Tallinn lies almost on the 60th parallel, right on the Gulf of Finland. The difference between seasons here is huge: both the weather and the length of daylight change dramatically (according to the city tourist office). In June the evenings are long; in December it gets dark by midday.

For walking around the Old Town, the best months are June and July. The days are long, the terraces on Town Hall Square are open, and museums stay open until 18:00. In May the city is emptier, but the weather is changeable: night frosts happen even at the end of the month.

September and October suit those who want to walk around without crowds. You get low accommodation prices and empty streets, but rain falls more often and the sun sets earlier.

Climate by month: temperature, precipitation, and sun

Below are the monthly averages for Tallinn: air temperature, precipitation, sun, rainy days, gulf water temperature, and humidity (as of 09/2026, visittallinn.ee).

January and February are the coldest, and July is the warmest. Rain falls here all year round, and the wettest months are July and August. The shortest days come in December, when the sun shines for less than an hour a day.

April is the most changeable month. Over the past 20 years, the thermometer in April has shown both +28 °C and -10 °C (according to the Tallinn tourist office). In May the average high is only 13.2 °C, but the city is already filling up with visitors.

Seasons in Tallinn: winter, spring, summer, and fall

Winter (December-March). Snow usually lies from December through March, and the most common winter temperature is between 0 and -10 °C. In a cold winter, the first snow falls as early as late October and stays until April; in a warm winter it arrives only in late December (according to visittallinn.ee). The lowest temperature ever recorded in Tallinn is -34.4 °C, and that was in February.

Spring (April-May). The sea breeze in May can drop the temperature by 10 °C within minutes. You won't get far walking along the waterfront in just a sweater. Night frosts are common in April and May, and in rare years snow falls even in the first half of May.

Summer (June-August). Typical summer temperatures are 15-20 °C, in a warm summer 22-27 °C, and above 30 °C is rare. The season brings 10-15 thunderstorm days, most often in July. In August the rains get heavier, especially if the summer turned out cool.

Autumn (September-November). Autumn in Tallinn is cloudy and windy, with rain falling for days at a time. The first night frosts in the suburbs come in October, sometimes as early as late September. On the plus side, museums shift into a quieter mode, and the halls are peaceful.

What to see in Tallinn

Tallinn Old Town (Vanalinn) is listed as a UNESCO World Heritage Site in its entirety. Its walls, towers, and Town Hall Square have survived, so you should set aside at least half a day to explore.

Old Town and Town Hall Square. The easiest starting point for a first walk: you go on foot, no transport or tickets needed. Town Hall Square, the narrow streets, and the towers give you a clear picture of the city in a couple of hours.

Lennusadam (Seaplane Harbour). A former seaplane hangar houses the submarine Lembit, and you can go inside it. The underground passages of the bastions are also open to visitors, so you won't get bored on a rainy day.

Kumu. The main building of the Art Museum of Estonia shows local painting from the 18th century to the present day, and the building itself is built into a hillside. The catch: the museum is closed on Mondays, except from May 25 to September 30.

Kadriorg and Kadrioru loss. The baroque palace built for Peter the Great houses the Kadriorg Art Museum with European and Russian painting (as of 09/2026, official museum website). The palace is surrounded by a park for strolling.

Kalamaja. A wooden district near the center, worth visiting to get away from the tourist streets. Pirita. The city's beach district: people come here to swim once the bay water warms up.

If you want to cover the main sights with a guide, check out Tallinn tours on GetYourGuide.

Museums: hours and tickets

Below are the opening hours of the two main museums, verified on 03.09.2026 on the official website of the Art Museum of Estonia (as of 09/2026, kumu.ekm.ee).

Ticket sales end 30 minutes before closing (as of 09/2026, official website). Check ticket prices on the Art Museum of Estonia page). In high season, it is more convenient to buy tickets online, so you won't have to stand in line.

When to book accommodation

In summer, a room in the center costs more than in November, and there is less choice. If you are traveling in July or on a long weekend, check hotel prices in Tallinn on Trip.com in advance. In winter, you get the low season and short daylight hours: you can enjoy the city, but you will have to plan your walks around the schedule.

⁉️🤔 Frequently asked questions

When is the best weather in Tallinn?

The warm months are late May, June, July, and August. In summer it is usually 15-20 °C, and in a warm year 22-27 °C, with fewer rainy days than in September and November (according to the Tallinn tourist office). Plan your trip for the second half of June or July. September is also mild, but it rains more often.

Can you swim in Tallinn in summer?

The water in the bay warms up slowly: 15 °C in July, 16 °C in August (as of 09/2026, visittallinn.ee). Swimming is not comfortable for everyone, although the Pirita beach area operates all summer. You will not spend long in the water. If the sea is your main goal, Tallinn is better left for the city and museums.

How many days do you need in Tallinn?

Two or three days are enough for a first visit. One day goes to the Old Town and Town Hall Square, the second to Kumu and Kadriorg, the third to Lennusadam and Kalamaja. If you are just passing through, the center can realistically be walked in a few hours.

What to do in Tallinn when it rains?

Rain is no reason to stay in your room. Head to the museums: Kumu, Lennusadam with its submarine, the underground bastion passages. Buy tickets online so you do not have to get wet in line. August is the wettest month of the year, so keep a raincoat handy in summer.

Do you need a car in Tallinn?

Tallinn is a compact city, and in the Old Town a car only gets in the way: the streets are narrow and parking is paid. From the airport to the center is easy by public transport, about 4 km (on the map). A car is worth renting only if you plan trips around Estonia outside the capital.

In short: what to book

If you are short on time: take the Old Town together with Lennusadam, both are close to the center. If you are traveling with kids: the Lembit submarine and Kumu will give you a couple of calm hours. If you are going in summer: book accommodation in advance and compare hotel prices in Tallinn on Trip.com. Tallinn is good all year round, but the warm season is short, so it is better to pick your dates based on your preferred weather, not the other way around.