Niš Weather in September
Niš in September sees high daytime temperatures of 25°C (77°F) and nighttime lows of 12°C (54°F). Moderate rainfall is typical, with around 41 mm (1.6 in) for the month.
Rainfall in Niš in September
You can typically expect 7 days of rain this month, averaging around 41 mm (1.6 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Niš in September
September is a perfect month in Niš, with 25°C (77°F) during the day and 12°C (54°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Niš in September
Expect a lot of sunshine this month, with about 203 hours of sun. These sunny conditions add to the overall experience.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June and September typically offer the best weather for Niš.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Serbia, check out our Niš's climate page.
Niš Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
25°C (77°F)
Chance of Rain
23%
Precipitation
41 mm (1.6 in)
Rainy days
7 days
Humidity
72%
Sunshine
203 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Niš typically drop from around 26°C (79°F) at the start of September to approximately 22°C (72°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°F) to 15°C (59°F).
Average temperatures in September
Daily Historical Precipitation
49-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 Niš in September
Browse day-by-day weather records for Niš spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Niš historical weather extremes in September
Based on 19 years of weather observations in Niš between 2006 and 2025, these are the recorded extremes.
- On September 18, 2015, temperatures climbed to 38°C (100°F), marking the warmest September day on record.
- The coldest September day was on September 20, 2008, with a maximum of 11°C (52°F).
- Niš registered its coldest September night on September 27, 2018, with temperatures dropping to -3°C (27°F).
Best Places in Serbia in September
Find out more about the weather in Serbia and which places have the best travel conditions in this month. See all of Serbia in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Niš in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Niš 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 Serbia, check out our Niš's climate page.
Temperature Rainfall Sunshine Humidity
See the full Niš climate overview or explore weather in Serbia.
