Bijeljina Weather in September
September in Bijeljina sees daytime temperatures around 25°C (77°F) and lows of 13°C (55°F) at night. With around 64 mm (2.5 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Bijeljina in September
Expect around 9 days of rain based on historical data, with 64 mm (2.5 in) average. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Bijeljina in September
If you're visiting Bijeljina in September, expect perfect temperatures with highs of 25°C (77°F) and overnight lows of 13°C (55°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Bijeljina in September
The days are predominantly sunny, with an estimated total of around 205 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If your ideal day consists of dry skies and pleasant temperatures, May, June and September typically offer the best circumstances for Bijeljina.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bosnia and Herzegovina, check out our Bijeljina's climate page.
Bijeljina Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
25°C (77°F)
Chance of Rain
31%
Precipitation
64 mm (2.5 in)
Rainy days
9 days
Humidity
72% *
Sunshine
205 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Bijeljina typically drop from around 25°C (77°F) at the start of September to approximately 21°C (70°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 14°C (57°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 Bijeljina in September
Browse day-by-day weather records for Bijeljina spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bijeljina historical weather extremes in September
Based on weather observations in Bijeljina between 1976 and 2025, these are the recorded extremes during September.
- The hottest September day on record in Bijeljina reached 38°C (100°F) (September 17, 2015).
- The lowest overnight temperature recorded in September was -1°C (30°F) (September 27, 2018).
Best Places in Bosnia and Herzegovina in September
Find out more about the weather in Bosnia and Herzegovina and which places have the best travel conditions in this month. See all of Bosnia and Herzegovina in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Bijeljina in September
For Bijeljina 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Bijeljina 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 Bosnia and Herzegovina, check out our Bijeljina's climate page.
Temperature Rainfall Sunshine Humidity
See the full Bijeljina climate overview or explore weather in Bosnia and Herzegovina.
