Weather in Pori

To ensure your trip is as comfortable as possible, check out the latest weather report for the city of Pori. In this section, you will find fresh data on temperature and a detailed forecast for the near future, which will help you plan the perfect day.

The climate in Pori can be described as moderately cold, typical for the western coast of Finland. All four seasons are distinct here, each bringing its own unique colours and atmosphere. Proximity to the Gulf of Bothnia has a softening effect on the weather, preventing extreme temperature spikes, although tourists should always be prepared for a fresh sea breeze.

Summer in the city is usually mild and comfortable, without exhausting heat. The warmest month is July, when the air warms up to an average of 17–20°C, creating ideal conditions for long walks and attending the famous jazz festivals. Winter, on the other hand, is snowy and frosty: from December to March, the temperature consistently stays below zero, reaching its minimums in February. This time of year turns the city into a true northern fairytale.

Precipitation falls quite regularly throughout the year, with the highest number of rainy days occurring in August and autumn. Even during the driest spring period, such as in May, the weather can be changeable. Therefore, when planning a trip to Pori, it is recommended to bring waterproof clothing and dress in layers to feel cosy in any season.

The temperature regime in Pori is characterized by distinct seasonality, typical of the Finnish climate. The coldest month of the year is traditionally February, when the average temperature drops to -3.5°C, and nighttime readings can reach -5.8°C. Winters here are moderately frosty: the thermometer consistently stays below zero from December to March, creating a classic winter atmosphere, although extreme cold spells are infrequent.

The summer period in the city is distinguished by its mildness and comfort, making it attractive for tourists who cannot tolerate intense heat. The peak warmth occurs in July, when the air warms up to an average of 17.1°C, and daytime maximums reach a pleasant 20.2°C. June and August also delight with moderate weather, with average values around 15–16°C. This time of year can be described as fresh and pleasantly warm, perfectly suitable for long walks in the fresh air.

Daily temperature fluctuations in Pori are noticeable but not sharp. In summer, the difference between the daily maximum and nightly minimum is usually around 6–7 degrees. Even in the warmest month, July, night temperatures drop to 13.9°C, bringing noticeable coolness after a sunny day. In spring and autumn, this contrast is felt more strongly, so layered clothing will be the best choice for a comfortable stay in the city at any time of day.

The nature of precipitation in Pori is closely linked to seasonal temperature changes. In winter, when the thermometer consistently stays below zero (from December to March), precipitation falls mainly as snow. January is one of the snowiest months: on average, about 15 days with precipitation are recorded here, creating classic Finnish winter landscapes.

With the arrival of spring, the number of inclement days decreases noticeably. The period from April to May can be called a relatively dry season; in May, for example, it rains the least—about 8 days per month. This time is excellent for walks, as the probability of getting wet is minimal compared to the rest of the year.

In summer and early autumn, humidity rises again. The peak of precipitation falls at the end of summer: August is the wettest month of the year, when rain can occur up to 16 days a month, and the volume of falling moisture reaches its annual maximum. In autumn, especially in October, rainy weather persists, gradually turning into wet snow by November.

When packing for Pori, it is important to remember the changeable Finnish climate and the influence of the Baltic Sea. In winter and early spring, when temperatures stay below freezing, your main rule should be layering. Be sure to bring high-quality thermal underwear, warm woollen sweaters, and a reliable windproof down jacket. Since humidity here can be high and the wind from the sea piercing, do not forget a hat, scarf, and mittens to feel comfortable during walks.

Summer in Pori is mild and pleasant, but do not expect strong heat: the average temperature in July is about +17°C. For a summer trip, T-shirts and light trousers are suitable, but be sure to grab a windbreaker or fleece jacket for cool evenings. If you plan to visit the famous Yyteri beach, don't forget a swimsuit and sunscreen—even the northern sun requires protection.

Precipitation in the region falls quite regularly throughout the year, with the number of rainy days varying from 8 to 16 per month. Therefore, a compact umbrella or a light raincoat will become indispensable companions in any season. Pay special attention to footwear: it should be comfortable and waterproof. In winter, choose insulated boots with thick soles, and in summer, comfortable sneakers for long walks around the city and nature.