Biržai Weather in September
Biržai in September sees pleasant temperatures, with highs around 18°C (64°F) and overnight lows of 9°C (48°F). Rainfall is fairly high at around 61 mm (2.4 in) on average, so pack waterproofs just in case.
Rainfall in Biržai in September
Typically around 17 days of rainfall are expected, averaging 61 mm (2.4 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Biržai in September
September in Biržai sees highs of 18°C (64°F) and lows of 9°C (48°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Biržai's climate page.
Biržai Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
18°C (64°F)
Chance of Rain
55%
Precipitation
61 mm (2.4 in)
Rainy days
17 days
Daily Historical Temperatures
32-year average (1994-2025)
Based on our historical records, temperatures in Biržai 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
32-year average (1994-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Biržai in September
Browse day-by-day weather records for Biržai spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Biržai historical weather extremes in September
Based on weather observations in Biržai between 1994 and 2025, these are the recorded extremes during September.
- The warmest day in September was on September 7, 2008, with a maximum of 29°C (84°F).
- Biržai experienced its chilliest September day on September 30, 1998, reaching only 7°C (45°F).
- The lowest overnight temperature recorded in September was -2°C (28°F) (September 23, 1996).
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
pleasant
tolerable
unpleasant
poor
What to Wear in Biržai in September
For Biržai in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket.What To Do in Biržai 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 Biržai's climate page.
See the full Biržai climate overview or explore weather in Lithuania.
