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Contents
- The climate of Turku
- The best time to visit Turku
- The worst time to visit Turku
- Spring weather in Turku
- Summer weather in Turku
- Autumn weather in Turku
- Winter weather in Turku
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average UV index
The climate of Turku
Turku, a city elusively nestled in Finland, boasts a Dfb Köppen climate classification. This category denotes a Humid continental climate with no dry season and warm summers, aligning it with regions sharing similar conditions distinguished by significant seasonal temperature oscillations. The comprehensive climatic data unfolds the tale of Turku's seasonally variant weather manifestations.
Weather parameters in Turku fluctuate throughout the year, painting a manifold picture of the city climate. Temperature spans reach from a chilling low of -8.3°C (17.1°F) in February to a warm 22.3°C (72.1°F) in July, rendering a conspicuously broad temperature spectrum. Correspondingly, rainfall spreads across the year with a prevalence towards autumn months. The summer season receives an increased share of sunlight and warmth, with sunshine hours cresting at 9.3 hours in July and temperatures peaking in the same month, while the UV index also maxes out. Sea temperatures range from a frosty -0.4°C (31.3°F) during February to a fairly warm 12.8°C (55°F) in August.
Emphasising Turku's singular climate manifestations reveals August and November as months with the heftiest rainfall, 80mm (3.15") and 78mm (3.07") respectively. Inversely, April records the least precipitation with an average of 32mm (1.26"). The coldest month is February, with temperatures dipping below freezing, while the hottest is July.
Weather parameters in Turku fluctuate throughout the year, painting a manifold picture of the city climate. Temperature spans reach from a chilling low of -8.3°C (17.1°F) in February to a warm 22.3°C (72.1°F) in July, rendering a conspicuously broad temperature spectrum. Correspondingly, rainfall spreads across the year with a prevalence towards autumn months. The summer season receives an increased share of sunlight and warmth, with sunshine hours cresting at 9.3 hours in July and temperatures peaking in the same month, while the UV index also maxes out. Sea temperatures range from a frosty -0.4°C (31.3°F) during February to a fairly warm 12.8°C (55°F) in August.
Emphasising Turku's singular climate manifestations reveals August and November as months with the heftiest rainfall, 80mm (3.15") and 78mm (3.07") respectively. Inversely, April records the least precipitation with an average of 32mm (1.26"). The coldest month is February, with temperatures dipping below freezing, while the hottest is July.
The best time to visit Turku
Choosing the ideal timing to visit Turku hinges primarily on individual temperature preference and tolerance of rainfall. With temperatures arousing to a comfortable range between 8.8°C (47.8°F) to 22.3°C (72.1°F), rainfall averaging around 59mm (2.32"), and daylight extending from 14.7 hours to 18.9 hours, the period from April to September offers optimal conditions for most tourists. In particular, daylight lingers longest in June and July, ensuring ample time to explore.
The worst time to visit Turku
The coldest months of Turku, falling between December to February—where temperatures plummet to freezing levels and daylight contracts to less than 10 hours—may not appeal to all visitors. Particularly, January and February stand out, with harsh low temperatures reaching -8.3°C (17.1°F) and -7.3°C (18.9°F) respectively, compounded by scant sunlight durations of 1.3 hours and 0.9 hours.
Spring weather in Turku
Descending upon Turku in the spring hints at a revival from the Winter cold. From March to May, temperatures ascend from lows of -4.9°C (23.2°F) to highs of 15.5°C (59.9°F). Rainfall remains modest, with monthly averages from 32mm (1.26") to 39mm (1.54"). A noticeable increase in sunshine hours from 4.3 to 9.2 hours and daylight from 11.8 to 17.3 hours provides a refreshing contrast to the preceding winter gloom.
Summer weather in Turku
Summers in Turku, lasting from June to August, are typically mild to warm. Temperature highs reach up to 22.3°C (72.1°F) in July, whereas the low temperatures remain comfortably above 9.3°C (48.7°F). Rainfall begins to intensify while still averaging between 59mm (2.32") to 80mm (3.15"), and daylight hours reach their climax, lingering from 15.6 to 18.9 hours. With these comfortable climate conditions, summers in Turku offer an inviting environment for outdoor activities.
Autumn weather in Turku
Autumn manifests itself in Turku between September and November, with temperatures stooping from highs of 14.9°C (58.8°F) to a low of -0.1°C (31.8°F) as the season progresses. Rainfall dominates the period, particularly in November with an average of 76mm (2.99"). Daylight gradually contracts, with durations diminishing from 12.9 hours in September to a shorter 7.5 hours in November.
Winter weather in Turku
During Winter, Turku transforms into a snow-kissed wonderland from December to February, with sub-zero temperatures hovering from lows of -5.6°C (21.9°F) to highs of -1.7°C (28.9°F), and a bare minimum of 1.3 hours of sunshine is observed. December sees the shortest daylight duration of 5.9 hours. Coupled with the frosty sea conditions, this period truly encapsulates the chilling beauty of Scandinavian winters.
Weather in January
The year starts off cold in Turku, Finland, with January's temperatures lower than in December. Icy conditions persist throughout the month, notably marked by a high of -1.7°C (28.9°F) and a low of -7.3°C (18.9°F). In addition to the chill, cloud cover is predominant, reducing the sunlight hours and making it a more gray and dreary period. Weather in January »
Weather in February
February continues to experience winter's harshness in Turku, although not as severe as the preceding month. The temperature drops marginally further, with the sea freezing and icy winds contributing to the frigid sensation. Despite the slight increase in daylight hours, sunshine durations remain relatively minimal, depriving the city of much-needed warmth. Weather in February »
Weather in March
The arrival of March signifies an ever-so-slight hint of spring in Turku's weather as temperatures rise a fraction in comparison to February. It is a transitional period, with warming trends nudging the freeze aside in favor of mild cold. Weather in March »
Weather in April
April sees visible progress towards spring, with Turku's weather displaying noticeable warmth compared to March. Frost-bound terrain gives way to softer views as plant life stirs back after a long slumber. The rapidly increasing daylight duration and warming sea also reflect the shift towards open skies and revived greenery. Weather in April »
Weather in May
May is a welcoming month in Turku, with a substantial difference in weather from April. It is when the city is fully immersed in spring and the temperatures tread into the comfortable range. The increase in sunshine duration and sea temperatures aligns to the pleasant weather creating a serene outdoor experience. Weather in May »
Weather in June
The Turku weather in June transitions towards summer with much warmer temperatures than seen in May. Long daylight hours and plenty of sunshine is a norm, resulting in raised sea temperatures as well. Despite the rise in temperatures, rainfall persists, behaving reminiscent of a typical northern European summer. Weather in June »
Weather in July
July, being the peak summertime, distinguishes itself with the city’s maximum average high temperature of 22.3°C (72.1°F) and rainfall of 79mm (3.11"). Turku witnesses a mix of sun-filled, and, paradoxically, rain-filled days as well. Weather in July »
Weather in August
August, succeeding July, observes a slight dip in temperature but continues to display summer traits in Turku. High daylight hours coupled with significant sunshine offer pleasant and favourable conditions for sightseeing and outdoor adventures. Weather in August »
Weather in September
September marks Autumn's arrival in Turku, exhibiting a more noticeable drop in temperature compared to August. In accordance with it, daylight hours diminish as well, but still allow for substantially bright days. Though cool, the sea remains suitable for a quick swim, at least at the start of the month. Weather in September »
Weather in October
October, representing the heart of Autumn, experiences a push towards colder conditions in Turku as compared to September. Shortened daytime duration coupled with reduced sunshine indicates the transition towards winter. The sea temperature plummets, signaling the cessation of water-related activities, and rainfall increases as well. Weather in October »
Weather in November
November experiences a significant downturn in Turku's weather, with the transition from autumn to winter becoming more apparent. When considering October, it is a considerably colder month with a marked decrease in exposure to sunlight. Weather in November »
Weather in December
December, taking over the narrative from November, fully embraces winter in Turku. It has minimum daylight hours, further dimmed by the omnipresent cloud cover, which leads to short and dark days. The temperature, having plunged to a yearly low, and the frozen sea echo the harsh, yet enchanting winter conditions. Weather in December »
[Resources]Frequently asked questions
How much does it rain in Turku?
In Turku, during the entire year, the rain falls for 116 days and collects up to 723mm (28.46") of precipitation.
When is the lowest UV index in Turku?
January, February, November and December, with an average maximum UV index of 0, are months with the lowest UV index.
What are the coldest months in Turku?
February is the month that records the lowest temperatures in Turku, with averages ranging from a high of -2.1°C (28.2°F) to a low of -8.3°C (17.1°F).
What is the month with the coldest sea water in Turku?
With an average sea temperature of -0.4°C (31.3°F), February is the month with the coldest seawater in Turku, Finland.
What is the driest month in Turku?
April is the month with the least rainfall in Turku, Finland. Rain falls for 7 days and accumulates 32mm (1.26") of precipitation.
When are the longest days in Turku?
The month with the longest days in Turku, Finland, is June, with an average of 18h and 54min of daylight.
What are the months with the highest UV index in Turku?
The months with the highest UV index in Turku are June and July, with an average maximum UV index of 5.
What time of the year is the hottest in Turku?
July, with its average high-temperature of 22.3°C (72.1°F) and an average low-temperature of 12.6°C (54.7°F), holds the record as the warmest month in Turku, Finland.
What month has the most sunshine in Turku?
July has the most sunshine of the year in Turku, with an average of 9.3h of sunshine.
What is the rainiest month in Turku?
The month with the most rainfall is August, when the rain falls for 11 days and typically aggregates up to 80mm (3.15") of precipitation.
When is the sea warmest in Turku?
August is the month with the warmest seawater, with an average sea temperature of 12.8°C (55°F).
When is Daylight Saving Time (DST) in Turku?
On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 03:00, and the time zone reverts from EET to EEST.
What is the month with the shortest days in Turku?
With an average of 5h and 54min of daylight, December has the shortest days of the year in Turku, Finland.
What is the month with the least sunshine in Turku?
With an average of 0.9h of sunshine, December has the least sunshine of the year.
Average temperature
Turku, Finland
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is February (-2.1°C).
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).
Average rainfall
Turku, Finland
The wettest month (with the highest rainfall) is August (80mm).
The driest month (with the least rainfall) is April (32mm).
Average rainfall days
Turku, Finland
- Average rainfall days in January:
11 days - Average rainfall days in February:
8 days - Average rainfall days in March:
9 days - Average rainfall days in April:
7 days - Average rainfall days in May:
7 days - Average rainfall days in June:
8 days
- Average rainfall days in July:
9 days - Average rainfall days in August:
11 days - Average rainfall days in September:
9 days - Average rainfall days in October:
12 days - Average rainfall days in November:
13 days - Average rainfall days in December:
12 days
The month with the highest number of rainy days is November (13 days).
The months with the least rainy days are April and May (7 days).
Average sea temperature
Turku, Finland
The best month for swimming (with the highest average sea temperature) is August (12.8°C).
The coldest month (with the lowest average sea temperature) is February (-0.4°C).
Average daylight / Average sunshine
Turku, Finland
- Average daylight in January:
6h and 5min - Average daylight in February:
9h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 4min - Average daylight in May:
17h and 2min - Average daylight in June:
18h and 5min
- Average daylight in July:
18h and 1min - Average daylight in August:
15h and 4min - Average daylight in September:
12h and 5min - Average daylight in October:
10h and 1min - Average daylight in November:
7h and 3min - Average daylight in December:
5h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in January:
1h and 2min - Average sunshine in February:
2h and 4min - Average sunshine in March:
4h and 2min - Average sunshine in April:
6h and 5min - Average sunshine in May:
9h and 1min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 2min - Average sunshine in August:
7h and 2min - Average sunshine in September:
5h and 1min - Average sunshine in October:
2h and 5min - Average sunshine in November:
1h and 2min - Average sunshine in December:
0h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average UV index
Turku, Finland
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 0).
Turku, Finland
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