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Banja Luka in September: Weather, Average temperature and Climate

Discover the weather for Banja Luka in September and if it’s a good time to travel (based on historical data).
Check flight prices to Banja Luka on Avionero:
September

Weather in Banja Luka in September 2024

Good Weather
Warm
☁️
Cloudy
Weather for Banja Luka in September is typically good with an average maximum temperature of +23°C during the day, and approximately 8 sunny days monthly. Typically, there are about 8 rainy days with the total average precipitation that falls in September around 92 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+23°C
Avg. max. temperature
+1°C
Min.
+39°C
Max.
92 mm
Total precipitation
78%
Avg. humidity
0 m/s
Avg. wind
8 ☀️
Sunny Days
14 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: Banja Luka has good weather in September.

Average temperature in Banja Luka in September

Here are the expected maximum, average and minimum temperatures in Banja Luka for September based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in September is +23°C with a maximum of +32°C and a minimum of +5°C.

The average maximum temperature goes up 19% by the end of the month, compared with the beginning of the month, from +20°C to +25°C.

Is Banja Luka warm or cold in September?

Banja Luka is typically warm in September.

Maximum temperatures go down compared to the previous month from +28°C to +23°C. The minimum temperature also goes down from +16°C to +12°C.

It’s generally warm, but pack a long-sleeve shirt for evenings.

Take a look at how September is compared to other months in Banja Luka:

Climate in Banja Luka in September

Banja Luka weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+28°C+23°C+18°C
Min. temperature
+8°C+1°C-5°C
Max. temperature
+41°C+39°C+30°C
Rainfall
78 mm92 mm78 mm
Wind
0 m/s0 m/s0 m/s
Humidity
74%78%81%
Air pressure
1014 HPa1016 HPa1018 HPa
Sunny days
1286
Cloudy days
121418
Rainy days
787
Snowy days
000

September weather is still as good as in August. It’s getting colder in September. From +28°C in the day, the average maximum temperature lowers to +23°C. Prepare for more rain. Average rainfall goes from 78 mm to 92 mm. Humidity rises from 74% to 78%. The average wind speed doesn’t change much during September, staying around 0 m/s. The days becoming less sunny, going from 12 sunny days in August to 8 in September.

Next month (October) brings a further decline in the weather.

Wind

Wind speed in Banja Luka in September based on historical data.
Last Year
Historical Data

The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Banja Luka is gradually increasing during September, going from 1 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Banja Luka based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 57%, leading to total precipitation of around 134 mm. The maximum amount of rainfall per day is around 25 mm, which is moderate rain. September is a pretty wet month with over 17 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Banja Luka wettest month is May, where a typical day has a 32% chance of precipitation and 112 mm of rainfall per day. January, on the other hand, is the driest month with a mere 13% chance of precipitation and 39 mm of rainfall per day.

How was the weather last September in Banja Luka?

This is the weather in Banja Luka in September 2023:
1 September
🌧️
+20°C
2 September
☁️
+21°C
3 September
☁️
+25°C
4 September
🌧️
+26°C
5 September
☀️
+28°C
6 September
☀️
+30°C
7 September
☁️
+31°C
8 September
☁️
+32°C
9 September
🌧️
+27°C
10 September
☁️
+24°C
11 September
☁️
+23°C
12 September
☀️
+24°C
13 September
☀️
+28°C
14 September
☁️
+30°C
15 September
☁️
+28°C
16 September
🌧️
+22°C
17 September
🌧️
+15°C
18 September
☀️
+21°C
19 September
☁️
+15°C
20 September
☀️
+19°C
21 September
☁️
+16°C
22 September
☁️
+17°C
23 September
☀️
+19°C
24 September
☁️
+23°C
25 September
☁️
+23°C
26 September
☁️
+21°C
27 September
☁️
+22°C
28 September
☁️
+22°C
29 September
☁️
+24°C
30 September
☁️
+25°C
In September 2023 Banja Luka had 7 sunny days, 18 cloudy days, and 5 rainy days. The average maximum temperature was +23°C, with an absolute maximum of +32°C and a minimum of +15°C. The average humidity was 81%, with a maximum of 100% and a minimum of 37%. The average wind speed was 1 m/s, with a maximum of 5 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change over Years

This is how Banja Luka climate have been changing during last 43 years period.

The climate in Banja Luka in September has not changed much over the last 43 years.

The average temperature was the lowest in 1996 (+19°C) and the highest in 2011 (+30°C). The driest year was 1985 with only 12 mm of rainfall, and the wettest year was 2001 with 257 mm.

FAQ

Frequently asked questions about the weather in Banja Luka in September:

Is September a good time to visit Banja Luka?

September is a really good time to go to Banja Luka. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Banja Luka.

Can you sunbathe in Banja Luka in September?

September is warm in Banja Luka. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Banja Luka rainy in September?

Banja Luka is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Banja Luka in September?

Usually, it’s not very sunny in Banja Luka in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Bosnia and Herzegovina

Check out the weather for other cities in Bosnia and Herzegovina.

Monthly weather in Banja Luka

Source of the data

For this page, we’ve looked at the typical weather in Banja Luka, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.