Kaunas Weather in September
In Kaunas, September brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 9°C (48°F). Some rainfall is to be expected.
Rainfall in Kaunas in September
Typically around 15 days of rainfall are expected, averaging 59 mm (2.3 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Kaunas in September
Daytime temperatures in Kaunas reach 19°C (66°F) in September, dropping to 9°C (48°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Kaunas in September
The area enjoys a balanced 160 hours of sunlight, ensuring it's neither too overcast nor too sunny.
Wind Speed in Kaunas in September
September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.If your ideal day consists of dry skies and pleasant temperatures, June, July and August typically offer the best circumstances for Kaunas.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Lithuania, check out our Kaunas's climate page.
Kaunas Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
19°C (66°F)
Chance of Rain
49%
Precipitation
59 mm (2.3 in)
Rainy days
15 days
Humidity
79%
Windspeed
3 m/s (6 knots)
Sunshine
160 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kaunas typically drop from around 19°C (66°F) at the start of September to approximately 15°C (59°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 11°C (52°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Kaunas in September
Browse day-by-day weather records for Kaunas spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kaunas historical weather extremes in September
Our historical data for Kaunas spans 1976 to 2025, revealing these weather extremes.
- The warmest day in September was on September 3, 2024, with a maximum of 29°C (84°F).
- The lowest overnight temperature recorded in September was -3°C (27°F) (September 24, 2019).
Best Places in Lithuania in September
Find out more about the weather in Lithuania and which places have the best travel conditions in this month. See all of Lithuania in September →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Kaunas in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Kaunas in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Lithuania, check out our Kaunas's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Kaunas climate overview or explore weather in Lithuania.
