Weather in Savonlinna

To make your trip to Savonlinna as comfortable as possible, check out the current weather forecast. In this section, you will find up-to-date data and visual charts to help you properly plan your day.

The climate in Savonlinna can be described as moderate continental, typical of the Finnish Lakeland. All four seasons are clearly expressed here, making the city attractive to visit at any time of the year, depending on the goals of your trip. The weather is characterized by a lack of extreme heat in summer and a true northern winter with snow and sub-zero temperatures.

Summer in the region is mild and comfortable, ideal for walks and water cruises. The warmest period falls in July, when the average temperature holds around +17.8°C, and during the day the air often warms up to +20°C and above. Winters here are snowy and frosty: from December to February, the thermometer consistently drops below zero, reaching an average of -6°C, which creates a fairytale atmosphere for a winter holiday.

A feature of the local climate is the fairly even distribution of precipitation throughout the year. Although the total amount in millimeters is small, the number of days with precipitation remains stable — from 10 to 16 days per month. This means that tourists should be prepared for changeable weather: short rains are possible in summer, and frequent snowfalls in winter. It is recommended to bring layered clothing to feel cozy regardless of nature's whims.

The climate in Savonlinna is distinguished by pronounced seasonality, characteristic of the lake region of Finland. The annual temperature graph shows a significant contrast: from real northern frosts in winter to mild and comfortable warmth in summer. The coldest months of the year are January and February with averages of about -6.2°C, while night temperatures often drop to -8°C and below. The warmest month is traditionally considered July, when the air warms up to an average of +17.8°C, and daytime highs often exceed the +20°C mark.

The summer season here can be characterized as moderately warm and very pleasant for active recreation. Stifling heat in this region is a rarity. In June and August, the average temperature holds at the level of +16°C, creating ideal conditions for excursions and boat trips. However, tourists should take into account daily temperature fluctuations: even in the warmest months, the difference between daytime warmth and evening cool can be 5-6 degrees, so having a cozy sweater for evening walks will be useful.

Winter in Savonlinna sets in quite early and lasts a long time. Already in November, the average temperature approaches zero, and a stable "minus" is established from December to March. Winter days are usually frosty and fresh, without sudden thaws. The transition to warmth in spring happens smoothly but steadily: while freezing temperatures persist in March (-3.3°C), a sharp warming occurs in May to an average of +10°C, marking the beginning of the comfortable travel season.

Precipitation in Savonlinna is distributed fairly evenly throughout the year, but its character depends heavily on the season. In winter, when the average temperature drops below zero (from December to March), precipitation falls mainly in the form of snow. Snowfalls here are a frequent but cozy phenomenon: for example, up to 15–16 days with precipitation are recorded in December and January, creating picturesque snowy landscapes characteristic of the Finnish winter.

The summer period brings a shift from snow to rain. The "wettest" months can be called July and August, when the highest number of rainy days is registered (up to 15 per month) and a slightly higher level of precipitation compared to the rest of the year. However, summer rains in this lake region are often short-lived, refreshing the air and not interfering with walks.

The driest time of the year is considered spring, especially April. In this month, the amount of precipitation reaches its annual minimum, and the likelihood of cloudy weather decreases — only about 10 days with precipitation. This is a great time for those who prefer drier weather, although it is worth remembering that the spring air still remains cool.

When packing for Savonlinna, it is important to remember the changeable Finnish climate, so the principle of layering in clothing will be relevant at any time of the year. In winter, when the temperature consistently stays below zero, the basis of your wardrobe should be high-quality thermal underwear, woolen items, and windproof outerwear. Be sure to bring a warm hat, scarf, and gloves, as well as insulated shoes with non-slip soles for safe walks on snowy streets.

In summer, the weather becomes comfortable for long walks, but evenings by the lakes can be cool. We recommend taking not only T-shirts but also a light jacket or hoodie. Since light precipitation is possible throughout the year, there should always be room in your suitcase for a compact umbrella or raincoat. For visiting attractions, such as the ancient fortress, choose comfortable and proven walking shoes.