Turku
City in Finland
Turku is a city in Finland with a population of about 210,000 as of 2025. Located 150 kilometers from Helsinki, it is known for its historic sites, including Turku Castle and Turku Cathedral.
What to see
The city features two primary historic landmarks. Visitors can explore the medieval Turku Castle or visit the Turku Cathedral.
When to go
The warmest months are June, July, and August, with daily highs ranging from 18 °C to 21 °C. July is the warmest month but also sees significant rain, with 81 mm over about 13 days. From November through March, temperatures frequently drop below freezing, with January and February experiencing daily lows of -7 °C and -8 °C respectively. These winter months are also characterized by frequent rainy or snowy days, occurring on about 11 to 15 days each month.
Getting there
The nearest airport is Turku Airport, located 7 kilometers from the city.
Top sights in Turku
Weather by month
The warmest month is July, with an average high of 21 °C. Rain is spread fairly evenly through the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | -2 | -3 | 1 | 8 | 14 | 18 | 21 | 20 | 14 | 8 | 3 | 0 |
| Average low, °C | -7 | -8 | -5 | 0 | 5 | 10 | 13 | 12 | 8 | 4 | -1 | -5 |
| Rainfall, mm | 59 | 40 | 42 | 36 | 39 | 61 | 81 | 94 | 68 | 86 | 82 | 70 |
| Rainy days | 15 | 11 | 10 | 9 | 8 | 8 | 13 | 13 | 10 | 13 | 15 | 15 |
Temperatures and rainfall: 1981–2010 averages for Turku (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.