Finland in August: Weather, Crowds & What to Expect
Climate Map for August
Average temperature across Finland in August.
City Weather in August
| City | High | Low | Rain | UV | Feels |
|---|---|---|---|---|---|
| Helsinki | 19° | 12° | 76 mm | moderate | Cool |
| Espoo | 19° | 11° | 78 mm | moderate | Cool |
| Tampere | 20° | 10° | 75 mm | moderate | Cool |
| Vantaa | 20° | 11° | 80 mm | moderate | Cool |
| Oulu central locality | 18° | 10° | 63 mm | moderate | Cool |
| Turku | 20° | 11° | 77 mm | moderate | Cool |
| Jyväskylä | 18° | 10° | 90 mm | moderate | Cool |
High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.
Southern Finland (Helsinki, Espoo, Porvoo)
August in Southern Finland is a late-summer month of warm afternoons and fresher nights; beaches remain pleasant and Helsinki’s outdoor events continue through the first weeks. Rain becomes a bit more frequent and occasional thunderstorms are possible, which can interrupt island excursions. Crowds thin from late August; bring versatile clothing for warm days and cool, damp evenings.
Southwest Finland & Åland Archipelago (Turku, Turku Archipelago, Åland)
August maintains warm days and provides a calmer alternative to July crowds later in the month; the sea is at its warmest and visibility is good for kayaking and water activities. Occasional thunderstorms can roll through, brief but intense, sometimes disrupting smaller-boat plans. This is a good month for photography - low-angle light and less saturated crowds make island villages easy to explore.
Lakeland & Eastern Finland (Tampere, Kuopio, Savonlinna, Koli)
August keeps summer warmth but the first cool nights arrive by month’s end; late-summer sunsets are long, and the berry-and-mushroom season is in full swing across forests. Water levels can drop late in dry summers, affecting small-boat navigation, and some hiking trails become quieter as locals prepare for autumn. Pack for warm days and bring pockets of insulating layers for cooler mornings.
Central & Western Finland (Jyväskylä, Vaasa, Päijänne)
August remains warm but with more frequent afternoon thunderstorms, especially inland; these are usually brief but can affect outdoor plans. Berry and mushroom picking starts to bloom in the forest understory, and fishermen report good late-summer catches. Early bookings taper off after the first two weeks, making late-August a quieter time to explore.
Lapland & Northern Finland (Rovaniemi, Inari, Kilpisjärvi, Saariselkä)
August brings long days and gradual cooling; the first crispness creeps into nights late in the month and some tourists swap summer trekking for early autumn walks. Berry and mushroom picking is at its peak-locals welcome foragers-and the region feels less hectic than July while still offering full services. Pack for variable weather: warm layers for mornings and repellents for marshy areas.