Weather in Vaasa

Stay up to date with weather conditions in Vaasa to plan your perfect trip. Below you will find the latest data, temperature charts, and detailed forecasts.

The climate of Vaasa can be described as temperate with a distinct maritime influence, typical of the western coast of Finland. The change of seasons is pronounced here, offering travellers completely different experiences depending on the month of their visit. Generally, the weather is fresh and invigorating: even in the height of summer, stifling heat is rare, and winters, while frosty, are often softened by the proximity of the Gulf of Bothnia.

Summer is the most popular time for trips, when the average air temperature fluctuates within the comfortable range of 14–17°C, and in July the thermometer can approach the 20°C mark. This is the ideal period for walking and enjoying nature. Winter in Vaasa is authentic and northern, but not extremely harsh: from December to February, temperatures stay below freezing (averaging around -4°C), creating wonderful conditions for winter activities.

It is worth noting that the weather can be changeable, especially during the transitional seasons. Autumn arrives quite early, and already in September the air cools noticeably, while the number of rainy days increases, peaking in August and October. Spring arrives gradually, and stable warmth usually settles in only by May. Travellers are advised to always carry layered clothing to feel comfortable during any whims of the Baltic weather.

The temperature pattern in Vaasa is characterized by distinct seasonality, typical of Finland's west coast. The coldest month of the year is traditionally February, when the average temperature drops to -4.5°C, and night frosts can reach -6.7°C. The winter period here is long and consistently frosty: from December to March, the thermometer stays confidently below zero, creating ideal conditions for lovers of a true Scandinavian winter.

Summer in this region can be described as mild and refreshing, without sweltering heat. The warmest month is July, with an average figure of about 16.8°C and daily highs reaching a comfortable 19.8°C. This time is perfect for walks and active leisure, as the air warms up to pleasant levels but rarely becomes stuffy. In June and August, moderate warmth also persists with average temperatures of 14.6°C and 16.0°C respectively.

It is worth noting that Vaasa does not experience sharp fluctuations between day and night temperatures. Even in the height of summer, the difference between the daily minimum and maximum is usually only 4–6 degrees (for example, in July from 13.9°C at night to 19.8°C during the day). This means that summer evenings remain sufficiently warm, although a light jacket might be useful, and in winter the temperature changes smoothly throughout the day, without extreme spikes.

Precipitation in Vaasa is distributed quite unevenly throughout the year, and its nature depends directly on the temperature regime. Winter months, especially January and February, are characterized by sub-zero temperatures (averaging down to -4.5°C), so the city is covered in snow at this time. Snowfalls create a real northern fairytale, although the number of days with precipitation in winter is moderate — about 8–12 days per month.

The wettest period, judging by the frequency of precipitation, falls on the second half of summer and the middle of autumn. The peak of "wet" days is observed in August, when it can rain for about 16 days a month. July and October are also distinguished by high humidity (14 and 15 days with precipitation respectively), so tourists planning a trip at this time are recommended to take waterproof clothing and an umbrella.

If you are looking for the driest season to visit, it is worth paying attention to spring. April and May are the months with the fewest rainy days (averaging just 8 per month). As it gets warmer, when the average temperature in May rises to 8.6°C, the weather becomes more favourable for long walks in the fresh air without the risk of getting soaked.

In autumn, the weather becomes more capricious: already in September and October, the number of rainy days increases. Closer to November, when the air temperature drops to 1.3°C, rain begins to give way to sleet, heralding the imminent arrival of winter.

A trip to Vaasa requires a careful approach to your wardrobe, as the weather on the Finnish coast can be changeable and windy. The main secret of comfort here at any time of the year is the principle of layering. In winter, when the temperature consistently stays below freezing, you will definitely need high-quality thermal underwear, woollen sweaters, and a windproof jacket or down coat. Do not forget a warm hat, scarf, and mittens, as the sea breeze can make the air feel significantly colder than the actual thermometer readings.

In summer, the climate becomes mild and pleasant, with temperatures rarely exceeding 20°C, but do not expect sweltering heat. Even in the warmest months, such as July, evenings can be cool, so a light windbreaker or fleece jacket should always be at hand. Considering that rainy days in Vaasa happen regularly (especially in August and autumn), a compact umbrella or a quality raincoat will become indispensable items in your luggage.

Pay special attention to footwear: it must be comfortable and waterproof, as you will be walking a lot. For winter trips, choose insulated boots with non-slip soles to feel confident on snowy streets. On sunny days, whether summer or winter, sunglasses will not be superfluous, protecting your eyes from bright light or glare on the snow.