Herceg-Novi Weather in September
In Herceg-Novi, September brings high daytime temperatures around 23°C (73°F), with nights cooling to 16°C (61°F). Expect quite a bit of rainfall this month.
Rainfall in Herceg-Novi in September
Rain is expected on roughly 8 days, totalling around 145 mm (5.7 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Herceg-Novi in September
In September, expect high temperatures in Herceg-Novi, with highs of 23°C (73°F) and lows of 16°C (61°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 16°C (61°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Herceg-Novi in September
Expect sunny days throughout the month, with an estimated 251 hours of sunshine. This makes it a pleasant time to visit Herceg-Novi.Should you favor a climate that's both dry and comfortably warm, June, July and August typically offer the most agreeable 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 Montenegro, check out our Herceg-Novi's climate page.
Herceg-Novi Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
23°C (73°F)
Chance of Rain
28%
Precipitation
145 mm (5.7 in)
Rainy days
8 days
Humidity
70%
Sunshine
251 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Herceg-Novi typically drop from around 27°C (81°F) at the start of September to approximately 24°C (75°F) by the end. Nights are pleasant, with lows typically ranging from 14°C (57°F) to 17°C (63°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 Herceg-Novi in September
Browse day-by-day weather records for Herceg-Novi spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Herceg-Novi historical weather extremes in September
According to our 49 years of weather records for Herceg-Novi, the following extremes were recorded between 1976 and 2025.
- The hottest September day on record in Herceg-Novi reached 36°C (97°F) (September 16, 1987).
- Herceg-Novi experienced its chilliest September day on September 28, 2002, reaching only 17°C (63°F).
- Herceg-Novi registered its coldest September night on September 30, 1977, with temperatures dropping to 6°C (43°F).
Best Places in Montenegro in September
Find out more about the weather in Montenegro and which places have the best travel conditions in this month. See all of Montenegro in September →
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What to Wear in Herceg-Novi in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Herceg-Novi 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 Montenegro, check out our Herceg-Novi's climate page.
Temperature Rainfall Sunshine Humidity
See the full Herceg-Novi climate overview or explore weather in Montenegro.
