In this guide
💡 The Short Version: Go between June and August for the warmest weather and the longest days; go from 20 November to 6 January for the Christmas market. Average daily highs reach 19°C to 22°C in summer and fall below freezing from December to February. Daylight runs from about 6 hours at the winter solstice to about 18 hours 40 minutes at midsummer. Some sights are summer-only: the Town Hall and its tower are walk-in from 1 June to 31 August, and the St. Olaf’s tower is open from 1 April to 31 October. Or book a tour: a guided Old Town historical walking tourad runs in any season and covers the Old Town in two hours.
⚠️ In winter, Monday is the day to check. Kumu and the Kadriorg Art Museum close on Mondays all year; from October to April Kiek in de Kök and Seaplane Harbour do too. The Town Hall is open by appointment only from September to May. Plan the museum days for Tuesday to Sunday; the table of closures below has the rest.
Weather by month
Averages for 1991 to 2020 from the Estonian Weather Service.
| Month | Average daily high | Average daily low | Days with 1 mm or more of rain | Hours of sunshine |
|---|---|---|---|---|
| January | -0.7°C | -5.5°C | 12.7 | 29.7 |
| February | -1.0°C | -6.2°C | 10.6 | 58.8 |
| March | 2.8°C | -3.7°C | 9.0 | 148.4 |
| April | 9.5°C | 0.7°C | 7.5 | 217.3 |
| May | 15.4°C | 5.2°C | 7.3 | 306.0 |
| June | 19.2°C | 9.8°C | 9.5 | 294.3 |
| July | 22.2°C | 13.1°C | 9.1 | 312.1 |
| August | 21.0°C | 12.3°C | 10.3 | 255.6 |
| September | 16.1°C | 8.4°C | 10.1 | 162.3 |
| October | 9.5°C | 3.7°C | 12.9 | 88.3 |
| November | 4.1°C | -0.2°C | 12.3 | 29.1 |
| December | 1.2°C | -3.1°C | 13.1 | 20.7 |
The warmest month is July and the coldest is February. December has the least sunshine, at 20.7 hours for the whole month. The record low is -32.2°C in December and the record high 34.3°C in July.
Daylight
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 21 December 2026 (shortest day) | 09:18 | 15:21 | 6 h 03 min |
| 20 March 2026 (spring equinox) | 06:24 | 18:34 | 12 h 10 min |
| 21 June 2026 (longest day) | 04:04 | 22:43 | 18 h 39 min |
| 22 September 2026 (autumn equinox) | 07:05 | 19:24 | 12 h 19 min |
Plan outdoor sights for the middle of the day in December and January. Times are local, and the solstice and equinox dates shift by a day or so from year to year.
What is open when
| Sight | Opening pattern |
|---|---|
| Town Hall | Walk-in 1 June to 31 August. Other months by appointment, Monday to Friday. Open 11:00 to 16:00 from 28 to 30 December 2026. |
| Town Hall tower | 1 June to 31 August, daily 11:00 to 18:00. Closed the rest of the year. |
| St. Olaf’s Church tower | 1 April to 31 October, daily 10:00 to 18:00. |
| Kiek in de Kök | October to April Tuesday to Sunday 11:00 to 18:00; May to September daily. |
| Hellemann Tower | Closed on Tuesdays from 15 October to 15 April. |
| Seaplane Harbour | October to April Tuesday to Sunday 10:00 to 18:00; May to September daily 10:00 to 19:00. |
| Kumu | Closed on Mondays all year. |
| Kadriorg Art Museum | Closed on Mondays all year. The Japanese Garden is generally closed in winter. |
| TV Tower | All year. The Edge Walk runs April to October. |
| Alexander Nevsky Cathedral | Hours are published for 1 May to 30 September, 08:00 to 18:00 (Saturday to 19:00). |
Public holidays close many museums. Kumu is shut on 24 and 25 December, 31 December and 1 January, and the Tallinn City Museum, which runs Kiek in de Kök, is shut on public holidays including 23 and 24 June, 20 August and 24 to 26 December.
Summer: June to August
Summer is the only season when everything is open. The Town Hall and its 64-metre tower are open without booking, St. Olaf’s tower is open, and Seaplane Harbour opens until 19:00. The daily high is 19°C to 22°C and the sun rises at 04:04 on 21 June.
Old Town from the Patkuli viewing platform at sunrise. Photo: Hendrik Mändla, Wikimedia Commons, CC BY-SA 4.0.
- Old Town Days: a three-day festival in the Old Town in early June; the 2026 edition ran from 5 to 7 June.
- Midsummer: 23 June (Victory Day) and 24 June (St. John’s Day) are public holidays. Museums and the Town Hall are shut on both.
- Cruise ships: they dock at the Old City Harbour, and the Port of Tallinn publishes the calls on its cruise schedule, with the arrival and departure time of each ship.
Autumn: September to October
The average high drops from 16.1°C in September to 9.5°C in October, and rain falls on about 13 days in October. The sun sets at 19:24 at the September equinox. St. Olaf’s tower is open until 31 October. From 15 October, Hellemann Tower is closed on Tuesdays, and from October the main museums close on Mondays.
Winter: November to February
Daily highs sit between -1.0°C and 4.1°C and the sun shows for 20 to 59 hours a month. Several things happen anyway:
- Black Nights Film Festival (PÖFF): 6 to 22 November 2026, with screenings in Tallinn and Tartu.
- Christmas market: 20 November 2026 to 6 January 2027 on Town Hall Square. See Tallinn Christmas market and winter.
- Old Town Ice Rink: on Harju street, opening on 14 November 2026.
The TV Tower and Seaplane Harbour stay open, and the free viewpoints on Toompea are open 24 hours.
Old Town roofs in winter. Photo: Wittylama, Wikimedia Commons, CC BY-SA 4.0.
Spring: March to May
The average high is 2.8°C in March, 9.5°C in April and 15.4°C in May, and sunshine rises from 148 hours in March to 306 in May.
- Tallinn Music Week: the 19th edition runs from 8 to 11 April 2027.
- St. Olaf’s tower: it opens on 1 April.
- Hellemann Tower: it is open daily again from 16 April.
- Alexander Nevsky Cathedral: the published hours start on 1 May.
Swan Pond, Kadriorg Park. Photo: Veterine, Wikimedia Commons, CC BY-SA 4.0.
Plan the rest
For day trips that work in each season see day trips from Tallinn, for the cold-weather basics is Tallinn safe, and for getting around public transport in Tallinn. Two-day and three-day routes that avoid the closed days are in Tallinn in 1 or 2 days and 3 days in Tallinn. For the same months across other cities, see where to go by month.
Common questions
What is the best month to visit Tallinn?
June to August is the warmest period, with average daily highs of 19°C to 22°C and up to 18 hours 40 minutes of daylight. It is also the only time the Town Hall and its tower are open without an appointment. If you want the Christmas market, go between 20 November 2026 and 6 January 2027.
How cold does Tallinn get in winter?
The average daily high is -0.7°C in January, -1.0°C in February and 1.2°C in December, and the average daily low is between -3.1°C and -6.2°C. The lowest temperature on record is -32.2°C, in December.
How many hours of daylight does Tallinn get?
On the shortest day, 21 December 2026, the sun rises at 09:18 and sets at 15:21, about 6 hours. On the longest day, 21 June 2026, it rises at 04:04 and sets at 22:43, about 18 hours 40 minutes.
When is the Tallinn Christmas Market?
The 2026 market runs from 20 November 2026 to 6 January 2027 on Town Hall Square, daily 10:00 to 20:00. Hot drinks are served until 22:00, and until 23:00 on Fridays and Saturdays.
Which Tallinn sights are closed in winter?
The St. Olaf's Church tower is open only from 1 April to 31 October, and the Town Hall and its tower are walk-in visits only from 1 June to 31 August. Kumu and the Kadriorg Art Museum are closed on Mondays all year, and from October to April Kiek in de Kök and Seaplane Harbour are too.
