AI-generatedTurku at a glance
- Best time
- Jun – Aug
- Warmest month
- Jul · 21°
- Warmest sea
- Aug · 17.3°
- Sunshine a year
- 1,860 h
- Rain a year
- 670 mm
- Climate
- Continental
- Time zone
- UTC+2 / UTC+3
- Elevation
- 22 m
Climate in Turku
Turku has warm to hot summers and cold winters with occasional snow. July is the warmest month with average highs of 21 °C, while February is the coolest at −2 °C. With around 1,860 hours of sunshine a year, Turku is moderately sunny; July is the sunniest month with 9.5 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: June – August
A typical day in October
- Morning, 08:00: about 5°
- Midday, 13:00: about 8°
- Afternoon, 16:00: about 9°
- Evening, 20:00: about 7°
- Night, 23:00: about 6°
08:0918:25
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:42–09:08 · evening 17:25–18:51
- Blue hour
- Morning 07:26–07:42 · evening 18:51–19:07
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Turku in October?
In October, Turku is cold: daytime highs average 9 °C, and nights cool down to about 4 °C. The sea averages 10.5 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 11 rainy days and 60 mm in total. All in all, October is not an ideal month for a holiday in Turku.
More details for October
- Daylight
- 10 h 16 min08:09 – 18:25
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 73 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 1 day1 cm or more of fresh snowAll months
- Time zone
- UTC+3Europe/Helsinki
How the score comes together
- Temperatureweight 50 %7 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %51 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Warm jacket
- Rain jacket or umbrella
Sea temperature in Turku
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 9.2 – 11.9 °C
Swimming season: Never above 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Turku ranges from 0.9 °C in February to 17.3 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea warms up slowly: it is warmest in August, while the air already peaks in July. From October to February the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 15.8 and 18.8 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 2.1° | 0.6° | 3.6° | cold |
| FebruaryFeb | 0.9° | −0.1° | 2.2° | cold |
| MarchMar | 0.9° | 0.1° | 2.1° | cold |
| AprilApr | 2.5° | 1.2° | 3.8° | cold |
| MayMay | 6.5° | 5.5° | 7.7° | cold |
| JuneJun | 12.0° | 10.2° | 14.4° | cold |
| JulyJul | 16.6° | 14.8° | 18.4° | cold |
| AugustAug | 17.3° | 15.8° | 18.8° | fresh |
| SeptemberSep | 14.4° | 13.3° | 15.8° | cold |
| OctoberOct | 10.5° | 9.2° | 11.9° | cold |
| NovemberNov | 7.3° | 5.9° | 8.5° | cold |
| DecemberDec | 4.4° | 2.9° | 5.7° | cold |
Sunshine hours in Turku
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 2.8 of 10.3 hours of daylight in Turku, 27 % of the day.
Sunshine hours: measured at the weather station 5 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Turku
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 1 · lowLittle protection needed; sunglasses on bright days.
The sun is strongest in June (UV 6).
Minutes until sunburn in October
- Very fair skin
- over 2 h
- Fair skin
- over 2 h
- Light brown skin
- over 2 h
- Olive skin
- over 2 h
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Turku: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Turku has about 11 rainy days with 60 mm of rain in total.
Wind and clouds in Turku
How breezy and how cloudy Turku is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Turku typically peaks at 18 km/h during the day: Beaufort 3, light breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 73 % of the sky over Turku: mostly cloudy, with about 2.8 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Snow in Turku
When Turku is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, Turku has about 1 days with at least 1 cm of fresh snow, 2 cm in total. The chance of seeing snow during a week's stay is 7 out of 100: hardly any.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Turku
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 4°. The room should be heated.
The coolest nights are in February (−7°), the warmest in July (14°). Nights fall below 8 °C on average from October to May, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 16 | −2° | −6° | 2.1° | 1.3 h | 10 | 50 |
| FebruaryFeb | 20 | −2° | −7° | 0.9° | 2.4 h | 9 | 39 |
| MarchMar | 27 | 2° | −5° | 0.9° | 4.5 h | 8 | 32 |
| AprilApr | 35 | 8° | 0° | 2.5° | 6.8 h | 8 | 33 |
| MayMay | 70 | 14° | 6° | 6.5° | 9.1 h | 9 | 42 |
| JuneJun | 86 | 19° | 11° | 12.0° | 9.4 h | 11 | 67 |
| JulyJul | 79 | 21° | 14° | 16.6° | 9.5 h | 14 | 92 |
| AugustAug | 76 | 20° | 13° | 17.3° | 7.7 h | 13 | 86 |
| SeptemberSep | 62 | 15° | 9° | 14.4° | 5.4 h | 9 | 59 |
| OctoberOct | 19 | 9° | 4° | 10.5° | 2.8 h | 11 | 60 |
| NovemberNov | 15 | 4° | 1° | 7.3° | 1.1 h | 11 | 55 |
| DecemberDec | 14 | 0° | −3° | 4.4° | 0.8 h | 12 | 56 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
60.45° N, 22.27° E · 22 m · Europe/Helsinki
Best time to visit Turku
The best time to visit Turku is from June to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 17.3 °C. For sightseeing, day trips and hiking, conditions are most comfortable in June and in September. Rain is most frequent from July to August; the wettest month is July with 92 mm.
Turku through the seasons
How the weather changes over the seasons, with averages for each.
Turku in spring
Mar – May
Fair
- 2–14 °C by day
- Sea 3 °C
- 7 h of sun a day
- 25 rainy days in all
Turku in summer
Jun – Aug
Excellent
- 19–21 °C by day
- Sea 15 °C
- 9 h of sun a day
- 37 rainy days in all
Turku in autumn
Sep – Nov
Poor
- 4–15 °C by day
- Sea 11 °C
- 3 h of sun a day
- 31 rainy days in all
Turku in winter
Dec – Feb
Poor
- -2–0 °C by day
- Sea 3 °C
- 2 h of sun a day
- 31 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Turku for you.
Your best months: July
Based on the climate averages; tap a month to see its details.
Compare two months in Turku
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
June has the better holiday weather in Turku: score 86 against 19. In June, days are 10 °C warmer than in October. The sea is 2 °C warmer in June. The sun shines 7 hours longer a day in June.
| Month | October | June |
|---|---|---|
| Weather score | 19 | 86better |
| Day high | 9° | 19° |
| Night low | 4° | 11° |
| Sea | 10.5° | 12.0° |
| Sunshine | 2.8 h | 9.4 hbetter |
| Rainy days | 11 | 11 |
| Rainfall | 60 mm | 67 mm |
Based on the climate averages 1996–2025.
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Jun, Sep
15–28 °C and not too much rain
Rainy months
Jul – Aug
12 or more rainy days
Snow
Nov – Mar
Snow on 2 or more days
Turku month by month
The typical weather for every month at a glance.
16January-2° · Sea 2° · 1 h
In January, Turku is freezing cold: daytime highs average −2 °C, and nights often drop below freezing (−6 °C). The sea averages 2.1 °C – swimming is only for the hardy. The sun is scarce, with only about 1 hours a day. Precipitation, often as snow, falls on about 10 days, totalling 50 mm. Snow falls on about 7 days. All in all, January is not an ideal month for a holiday in Turku.
Turku in January20February-2° · Sea 1° · 2 h
In February, Turku is freezing cold: daytime highs average −2 °C, and nights often drop below freezing (−7 °C). The sea averages 0.9 °C – swimming is only for the hardy. The sun is scarce, with only about 2 hours a day. Precipitation, often as snow, falls on about 9 days, totalling 39 mm. Snow falls on about 6 days. All in all, February is not an ideal month for a holiday in Turku.
Turku in February27March2° · Sea 1° · 5 h
In March, Turku is freezing cold: daytime highs average 2 °C, and nights often drop below freezing (−5 °C). The sea averages 0.9 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Precipitation, often as snow, falls on about 8 days, totalling 32 mm. Snow falls on about 4 days. All in all, March is not an ideal month for a holiday in Turku.
Turku in March35April8° · Sea 3° · 7 h
In April, Turku is cold: daytime highs average 8 °C, and nights cool down to about 0 °C. The sea averages 2.5 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain falls on about 8 days, adding up to 33 mm. All in all, April is not an ideal month for a holiday in Turku.
Turku in April70May14° · Sea 7° · 9 h
In May, Turku is cool: daytime highs average 14 °C, and nights cool down to about 6 °C. The sea averages 6.5 °C – swimming is only for the hardy. With around 9 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 9 rainy days and 42 mm in total. All in all, May is a good month for a holiday in Turku.
Turku in May86June19° · Sea 12° · 9 h
In June, Turku is mild: daytime highs average 19 °C, and nights cool down to about 11 °C. The sea averages 12.0 °C – swimming is only for the hardy. With around 9 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 11 rainy days and 67 mm in total. All in all, June is an excellent month for a holiday in Turku.
Turku in June79July21° · Sea 17° · 10 h
In July, Turku is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 16.6 °C – swimming is only for the hardy. With around 10 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 14 rainy days and 92 mm in total. All in all, July is a good month for a holiday in Turku.
Turku in July76August20° · Sea 17° · 8 h
In August, Turku is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 17.3 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain is frequent, with about 13 rainy days and 86 mm in total. All in all, August is a good month for a holiday in Turku.
Turku in August62September15° · Sea 14° · 5 h
In September, Turku is cool: daytime highs average 15 °C, and nights cool down to about 9 °C. The sea averages 14.4 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 59 mm in total. All in all, September is a good month for a holiday in Turku.
Turku in September19October9° · Sea 11° · 3 h
In October, Turku is cold: daytime highs average 9 °C, and nights cool down to about 4 °C. The sea averages 10.5 °C – swimming is only for the hardy. The sun is scarce, with only about 3 hours a day. Rain is frequent, with about 11 rainy days and 60 mm in total. All in all, October is not an ideal month for a holiday in Turku.
Turku in October15November4° · Sea 7° · 1 h
In November, Turku is cold: daytime highs average 4 °C, and nights cool down to about 1 °C. The sea averages 7.3 °C – swimming is only for the hardy. The sun is scarce, with only about 1 hours a day. Precipitation, often as snow, falls on about 11 days, totalling 55 mm. Snow falls on about 3 days. All in all, November is not an ideal month for a holiday in Turku.
Turku in November14December0° · Sea 4° · 1 h
In December, Turku is freezing cold: daytime highs average 0 °C, and nights often drop below freezing (−3 °C). The sea averages 4.4 °C – swimming is only for the hardy. The sun is scarce, with only about 1 hours a day. Precipitation, often as snow, falls on about 12 days, totalling 56 mm. Snow falls on about 5 days. All in all, December is not an ideal month for a holiday in Turku.
Turku in DecemberTurku compared
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Turku vs. Espoo
In October the holiday weather in Turku and Espoo is about equally good (score 19 vs. 17). During the day it is about as warm in Espoo as in Turku. The sea is about equally warm.
| in October | Turku | Espoo |
|---|---|---|
| Holiday score | 19 | 17 |
| Daytime high | 9° | 9° |
| Sea | 11° | 11° |
| Sunshine | 3 h | 3 h |
| Rainy days | 11 | 11 |
| Best time | Jun – Aug | Jun – Aug |
Through the year
Finland in October: the best places
In October, Turku ranks 1 of 7 destinations in this country.
- TurkuThis page9°11°19
- 2Espoo9°11°17
- 3Helsinki9°11°16
- 4Rovaniemi4°16
- 5Oulu5°8°15
- 6Vaasa7°9°11
- 7Porvoo8°11°10
Planning a trip to Turku
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Turku in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Turku has its best school-holiday weather during the summer holidays (score 77) and its weakest during the Christmas holidays (score 15).
- 33
Easter holidays
Mar – Apr
Poor
- 6 °C by day
- Sea 2 °C
- 6.1 h of sun a day
- 8 rainy days a month
Keep in mind: Snow
- 73
May half-term
May – Jun
Good
- 15 °C by day
- Sea 8 °C
- 9.2 h of sun a day
- 10 rainy days a month
- 77
Summer holidays
Jul – Aug
GoodBest holidays
- 21 °C by day
- Sea 17 °C
- 8.3 h of sun a day
- 13 rainy days a month
Keep in mind: Frequent rain
- 19
October half-term
Oct
Poor
- 9 °C by day
- Sea 11 °C
- 2.8 h of sun a day
- 11 rainy days a month
- 15
Christmas holidays
Dec – Jan
Poor
- −1 °C by day
- Sea 3 °C
- 1.1 h of sun a day
- 11 rainy days a month
Keep in mind: Snow
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 2 h 35 min
- Distance
- 1,720 km
- Time zone
- UTC+3
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Turku
When is the best time to visit Turku?
The best time to visit Turku is from June to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Turku?
The sea temperature in Turku ranges from 0.9 °C in February to 17.3 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Turku in October?
Only if you don't mind cold water: in October the sea averages just 10.5 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Turku?
July is the warmest month, with average highs of 21 °C and nights around 14 °C. February is the coolest month at −2 °C.
When does it rain most in Turku?
Rain is most frequent from July to August; the wettest month is July with 92 mm. The driest month is March with 32 mm.
How many hours of sunshine does Turku get?
Turku gets around 1,860 hours of sunshine a year. The sunniest month is July with 9.5 hours a day; in December there are 0.8 hours a day.
What time zone is Turku in?
Turku uses the time zone Europe/Helsinki: UTC+2 in January and UTC+3 in July.
How long is the flight from London to Turku?
A nonstop flight from London to Turku takes about 2 h 35 min, for a straight-line distance of about 1,720 km.
Which school holidays are best for Turku?
Turku has its best school-holiday weather during the summer holidays (score 77) and its weakest during the Christmas holidays (score 15). Holiday ratings (0–100): Easter holidays 33, May half-term 73, Summer holidays 77, October half-term 19, Christmas holidays 15.
Near Turku
Other destinations close by.
Places with a climate like Turku
Destinations whose weather through the year is closest to Turku's – good alternatives.