Solothurn

Find the latest weather forecast for Solothurn to help you plan your trip. This section provides current meteorological data and temperature trend charts.

The climate in Solothurn is moderate, typical of the Swiss Plateau. The weather here is mild without extreme temperature fluctuations, making the city an attractive destination year-round. The influence of the mountains and rivers creates a comfortable atmosphere, though travelers should be prepared for some variability in weather conditions.

The city experiences four distinct seasons. Summer is warm and pleasant, with average highs reaching 24°C in July—ideal for strolling along the Aare embankment. Winter is cool but not severe: temperatures often stay just above freezing, only occasionally dropping slightly below zero at night. Spring and autumn serve as smooth transition periods with moderate coolness and a gradual change in nature's colors.

A characteristic feature of Solothurn's weather is its relatively high humidity and regular precipitation throughout the year. According to statistics, the number of rainy days remains stable month to month (averaging 12 to 19 days), with May often being the "wettest" month. Therefore, regardless of the season, tourists are advised to carry an umbrella or raincoat, as brief showers can refresh the city even in the height of summer.

The climate in Solothurn is characterized by distinct seasonality, allowing tourists to enjoy a variety of weather conditions throughout the year. The coldest month is traditionally January, when the average temperature drops to 1.5°C. Winters can be described as moderately cool but not harsh: while night temperatures often dip slightly below zero (averaging -1.4°C), the air usually warms up to 4-5°C above zero during the day. This creates a classic winter atmosphere suitable for walking, provided you wear warm clothes.

The summer period brings pleasant warmth to the city, which rarely turns into exhausting heat. Temperatures peak in July, when average daily highs reach a comfortable 24.1°C. June and August also enjoy mild weather with daytime figures around 22-23°C. These conditions are ideal for excursions and outdoor recreation, as summer weather in Switzerland is generally fresh and invigorating without excessive stuffiness.

Travelers should take into account the noticeable temperature drops between day and night, which are especially felt during the warm season. In summer, the difference can be about 10 degrees: after a sunny day with a temperature of 24°C, the night brings freshness as the thermometer drops to 14°C. Transitional seasons, such as September, still retain pleasant warmth with highs around 19.5°C, but by November, the city cools down rapidly, approaching winter levels.

Precipitation in Solothurn is distributed fairly evenly throughout the year, so travelers should be prepared for changeable weather in any season. There is no pronounced dry period, though the nature of the precipitation changes depending on the time of year. In winter, when temperatures often hover around zero or drop below, snowfall is likely, especially in December and January. December also stands out for its high frequency of precipitation—about 18 days a month.

The spring period, especially May, is considered the wettest time of year. This month sees the highest number of rainy days (up to 19 days), as well as the greatest volume of rainfall. In summer, rain continues to fall quite often (averaging 16–17 days per month), but thanks to the warm weather, it often takes the form of brief showers or thunderstorms that refresh the air and are quickly followed by sunshine.

According to statistics, the "driest" month is February, when the number of days with precipitation drops to 12 and the total volume is minimal. Autumn, particularly September and October, also offers relatively comfortable conditions with a moderate frequency of rain (about 13–14 days). Nevertheless, when planning a trip to this picturesque corner of Switzerland, it is always recommended to have an umbrella or raincoat on hand so that bad weather doesn't catch you off guard.

When preparing for a trip to Solothurn, it's important to consider the variability of the local weather and the relatively high number of wet days throughout the year. Dressing in layers is a versatile solution for any season, allowing you to easily adapt to temperature changes during the day. Be sure to pack comfortable, waterproof, flat-soled shoes, as you will be doing a lot of walking while sightseeing. Given the precipitation statistics, a compact umbrella or a quality raincoat will be essential items, regardless of the month of your visit.

If your trip falls during the winter period, from November to March, be prepared for cool weather with temperatures often dropping to zero or slightly below. You will need a warm jacket or down coat, a hat, a scarf, and gloves. Thermal underwear can also be useful for long walks around the city. Spring and autumn here can be quite rainy and cool, so a windproof windbreaker and a warm sweater will come in very handy.

Summer in Solothurn is usually mild and comfortable, without exhausting heat: the average temperature stays around +19°C, sometimes rising to +24°C. Light clothing made of natural fabrics, T-shirts, and shorts are suitable for the summer months. However, even in the middle of July, evenings can be crisp, so bring a hoodie or a light jacket. Also, don't forget sunglasses and sunscreen to stay comfortable on sunny days.