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Weather in Herceg Novi for September 2025

Your guide to Herceg Novi weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Yellow Wind Warning - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Herceg Novi has been nearly identical to the historical average, with a temperature of 25.3 °C (showing only a slight deviation of -0.4 °C).

  • Expect cooler weather in the next days in Herceg Novi with the forecast suggesting a temperature of 23.4 °C, lower than the historical average.

  • In general, the average temperature in Herceg Novi at the beginning of September is 26.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.3 °C by the end of September.

    • Rain 🌧️

  • Herceg Novi in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 101.6 mm.

Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/16°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
63 %
Avg humidity

Herceg Novi Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
26°
2
Sunny
28°
3
Patchy rain possible
27°
4
Patchy rain possible
26°
5
Sunny
27°
6
Partly cloudy
27°
7
Patchy rain possible
27°
8
Sunny
27°
9
Sunny
26°
10
Sunny
26°
11
Sunny
25°
12
Sunny
25°
13
Sunny
24°
14
Partly cloudy
22°
15
Partly cloudy
23°
16
Sunny
22°
17
Weather Alert Sunny
26°
18
Sunny
25°
19
Sunny
26°
20
Sunny
26°
21
Sunny
25°
22
Sunny
25°
23
Sunny
24°
24
Patchy rain possible
21°
25
Patchy rain possible
23°
26
Patchy rain possible
22°
27
Patchy rain possible
21°
28
Patchy rain possible
20°
29
Sunny
20°
30
Sunny
22°

Temperatures trend during September in Herceg Novi

See the weather trend as well as the moving average line

September weather in Herceg Novi day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 26° /17° 0 mm 6
2 Sept. Sunny
Sunny
 28° /18° 0 mm 7
3 Sept. Patchy rain possible
Patchy rain possible
 27° /18° 0.7 mm 6
4 Sept. Patchy rain possible
Patchy rain possible
 26° /18° 1.5 mm 6
5 Sept. Sunny
Sunny
 27° /18° 0 mm 7
6 Sept. Partly cloudy
Partly cloudy
 27° /18° 4.9 mm 6
7 Sept. Patchy rain possible
Patchy rain possible
 27° /18° 0.4 mm 6
8 Sept. Sunny
Sunny
 27° /18° 0.1 mm 7
9 Sept. Sunny
Sunny
 26° /17° 10.8 mm 7
10 Sept. Sunny
Sunny
 26° /17° 7.8 mm 6
11 Sept. Sunny
Sunny
 25° /15° 12.1 mm 6
12 Sept. Sunny
Sunny
 25° /16° 1.9 mm 6
13 Sept. Sunny
Sunny
 24° /16° 16.5 mm 6
14 Sept. Partly cloudy
Partly cloudy
 22° /14° 4.1 mm 5
15 Sept. Partly cloudy
Partly cloudy
 23° /14° 0.1 mm 6
16 Sept. Sunny
Sunny
 22° /15° 0.3 mm 6
17 Sept. Sunny
Sunny
 26° /13° 0.1 mm 1.1
18 Sept. Sunny
Sunny
 25° /14° 0 mm 1.5
19 Sept. Sunny
Sunny
 26° /16° 0 mm 1.5
20 Sept. Sunny
Sunny
 26° /17° 0 mm 1.8
21 Sept. Sunny
Sunny
 25° /16° 0 mm 5
22 Sept. Sunny
Sunny
 25° /17° 0 mm 6
23 Sept. Sunny
Sunny
 24° /16° 0 mm 5
24 Sept. Patchy rain possible
Patchy rain possible
 21° /14° 1.7 mm 4
25 Sept. Patchy rain possible
Patchy rain possible
 23° /15° 0.4 mm 4
26 Sept. Patchy rain possible
Patchy rain possible
 22° /12° 1.3 mm 4
27 Sept. Patchy rain possible
Patchy rain possible
 21° /12° 1.9 mm 4
28 Sept. Patchy rain possible
Patchy rain possible
 20° /10° 0.4 mm 4
29 Sept. Sunny
Sunny
 20° /10° 0 mm 4
30 Sept. Sunny
Sunny
 22° /11° 0 mm 6
Next
Important Notice
Our weather forecast for Herceg Novi in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Herceg Novi forecast closer to your planned date for the most up-to-date weather information.
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Herceg Novi in September - FAQ

What are the expected maximum and minimum temperatures in Herceg Novi during September?
During September, expect a variety of temperatures with highs around 24° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Herceg Novi during September?
Significant rainfall exceeding 101.6 mm is expected in Herceg Novi during September, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Herceg Novi during September?
The average wind speed in Herceg Novi during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

Herceg Novi water temperatures in September

The average water temperature of the Adriatic Sea near Herceg Novi in September is 24.8 °C. At the beginning of September temperatures are around 24.7 °C; by the end of the month they stay fairly steady and reach 25 °C.

What is the water temperature in Herceg Novi in September?
The average water temperature in Herceg Novi in September is 24.8 °C.
Can you swim in Herceg Novi in September?
Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.

September rainfall patterns in Herceg Novi

Explore the daily rainfall trends and prepare for Herceg Novis September weather 💧

UV exposure in Herceg Novi during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Herceg Novi?

Get accurate weather forecasts for Herceg Novi, located at latitude 42.453 and longitude 18.538. Stay updated with localized weather information tailored for Herceg Novi.

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