Turku weather by month & the best time to visit
🇫🇮 Finland · seaside town · continental climate
The best time to visit Turku is July — its sunniest month (Sunshine Score 76/100), with August and June close behind. Turku averages about 1,640 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 64 mm of rain in July.
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- Sun hours / year
- 1,640
- Sunniest month
- July
- Peak score
- 76/100
- Rain / year
- 723 mm
- Snow / year
- ≈1.5 m
- Midday UV at peak
- 4 (moderate)
- Sea at warmest
- 22°C / 72°F
- Population
- 207k
- Elevation
- 47 m

When is the best time to visit Turku?
For sunshine, the best time to visit Turku is July, then August and June. The dullest month is January (0/100, 60 mm of rain). The full month-by-month picture is in the table below.
How sunny is Turku?
Turku isn't a sunny place by world standards: about 1,640 hours of sunshine a year. 76 Sunshine Score points separate July (76) from January (0), so the month you pick matters. It ranks #10 of 20 destinations in Finland for annual sunshine, above the national median of 1,638 hours. The year's 723 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | -3° / 27°F | -7° / 19°F | 60 mm | 0 | 0° / 32°F |
| February | 0 | -2° / 28°F | -8° / 18°F | 47 mm | 0 | 0° / 32°F |
| March | 0 | 2° / 36°F | -5° / 23°F | 42 mm | 1 | 1° / 34°F |
| April | 0 | 8° / 46°F | -1° / 30°F | 41 mm | 2 | 4° / 39°F |
| May | 46 | 15° / 59°F | 5° / 41°F | 47 mm | 3 | 14° / 57°F |
| June | 70 | 19° / 66°F | 9° / 48°F | 65 mm | 4 | 21° / 70°F |
| July | 76 | 22° / 72°F | 13° / 55°F | 64 mm | 4 | 22° / 72°F |
| August | 75 | 21° / 70°F | 12° / 54°F | 72 mm | 3 | 21° / 70°F |
| September | 51 | 16° / 61°F | 8° / 46°F | 63 mm | 2 | 17° / 63°F |
| October | 0 | 8° / 46°F | 3° / 37°F | 78 mm | 1 | 11° / 52°F |
| November | 0 | 3° / 37°F | 0° / 32°F | 74 mm | 0 | 5° / 41°F |
| December | 0 | 0° / 32°F | -4° / 25°F | 70 mm | 0 | 1° / 34°F |
Sea temperature in Turku by month
The sea off Turku is warmest in July at around 22°C / 72°F, and coolest in January at 0°C / 32°F. The water sits at a comfortable 21°C or warmer roughly 3 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Turku on the interactive sunshine globe →
Nearby places for sunshine
- Helsinki (Vantaa) Finland · 150 km · best in Jul · 1,584 h sun/yr
- Tallinn Estonia · 188 km · best in Jul · 1,693 h sun/yr
- Stockholm Sweden · 259 km · best in Jul · 1,710 h sun/yr
- Umeå Sweden · 379 km · best in Jul · 1,887 h sun/yr
- Riga Latvia · 412 km · best in Jul · 1,691 h sun/yr
- St. Petersburg Russia · 449 km · best in Jul · 1,522 h sun/yr
Nearest destinations
- Pori Finland · 108 km · 1,876 h sun/yr · best in Jul
- Tampere / Pirkkala Finland · 124 km · 1,564 h sun/yr · best in Aug
- Mariehamn Finland · 137 km · 1,841 h sun/yr · best in Jul
- Kärdla Estonia · 172 km · 1,751 h sun/yr · best in Jul
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