Kaunas

Climate Characteristics of Kaunas

General Overview

Kaunas is located in central Lithuania, at the confluence of the two largest rivers, Nemunas and Neris. Due to its geographical position, it tends to be slightly warmer than Vilnius during the summer. The meeting of the rivers and the valley topography where the Old Town sits result in higher humidity and frequent morning mists. The climate is temperate-continental, with distinct seasons—from a lush, vibrant summer to a snowy, cold winter that freezes the riverbanks.

Temperatures and Daily Variations

In summer, daytime temperatures range from 23°C to 26°C (73-79°F), often crossing 30°C (86°F) during heatwaves. In winter, the average daytime temperature is around -2°C (28°F), dropping to -8°C (18°F) or lower at night. Due to its valley location, nighttime temperatures can be slightly higher than in surrounding open areas, but the humidity makes the cold feel more piercing.

Precipitation Seasons (June-August)

Summer is the wettest period, with strong thunderstorms and heavy summer rains being very common. The abundant water around the city contributes to rapid cloud development in the afternoons. In winter, snow is very common and stays on the ground for long periods, giving Kaunas Castle and the famous Laisvės alėja a classic snowy European look.

Dry and Comfortable Seasons (May and September)

May is one of the most beautiful months in Kaunas, with blooming at its peak and humidity still low. September offers relatively stable weather with crisp days and clear skies. This is a great time for walks along the river promenades and in the city's parks before the autumn humidity sets in.

Weather in Kaunas by Month

January

The coldest month. Daytime temperatures are around -3°C (27°F) and drop to -9°C (16°F) at night. The city is usually covered in snow, and the rivers may freeze at the edges. The air is humid and freezing, and days are very short.

February

Cold and stable winter. -2°C (28°F) daytime. Snow depth on the ground is usually at its peak. Skies are mostly grey and winds can be very cold, especially near the open water areas.

March

Start of gradual thawing. 4°C (39°F) daytime. The sun begins to warm and snow disappears from the main streets. Nights are still frozen, but afternoons begin to feel spring-like and more pleasant.

April

Spring awakens rapidly. 12°C (54°F) daytime. Snow disappears completely and trees and grass begin to turn green. Weather is volatile—warm days alternate with cold rain or occasional late snow flurries.

May

The most pleasant month for visiting. 18°C (64°F) daytime. Clear skies and blooming at its peak. The air is fresh and crisp; ideal for sitting in outdoor cafes on the famous "Freedom Avenue."

June

Start of summer. 22°C (72°F) daytime. Days are very long and the city is vibrant. A warm and pleasant month with occasional summer showers and thunderstorms cooling the air after hot days.

July

The warmest month. 25°C (77°F) daytime and 14°C (57°F) at night. Temperatures can be quite high and humidity rises due to river proximity. Heavy showers may occur but usually pass quickly.

August

Continuation of warm summer. 24°C (75°F) daytime. Nights start to cool slightly but days remain summery and very pleasant. Toward the end of the month, morning mists over the river become more frequent.

September

Golden and clear autumn. 17°C (63°F) daytime. Skies return to blue and the air becomes crisp and fresh. Autumn colors appear in the many parks, and visibility along the river valley is at its best.

October

Significant cooling to 10°C (50°F) daytime. Days shorten significantly and become greyer and rainier. A windy month characterized by a melancholic and magical autumn atmosphere along the castle walls.

November

A dark and grey month. 4°C (39°F) daytime. Almost no sunshine hours and high humidity. Cold rains and heavy fogs are the main features. Chance of first snow toward the end of the month.

December

Winter officially returns. -1°C (30°F) daytime and -5°C (23°F) at night. The city is decorated with Christmas lights, and the atmosphere in the Town Hall Square becomes warm and festive despite the cold and beginning snow.