worldweather31°Cexceptionally warm
usually 22°C–28°C
warmer than 97% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: lighter than usual
Weather in Herceg Novi - 14-day forecast
Detailed weather forecast for Herceg Novi, Montenegro: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Herceg Novi
today☀️
31°💧 26.8 mm
Sun☀️
30°💧 0.4 mm
Mon☀️
29°💧 4.2 mm
Tue🌧️
28°💧 0.2 mm
Wed☀️
28°💧 0.1 mm
Thu☀️
28°💧 4.1 mm
Fri🌧️
27°💧 0.8 mm
Sat☀️
26°💧 10.1 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Saturday 5 Sept in Herceg Novi, the forecast high is 31°C. Typical daytime temperatures at this time of year range from 22°C to 28°C, so it will be exceptionally warm. It is warmer than 97% of similar days.
30°Cexceptionally warm
usually 22°C–28°C
warmer than 94% of similar days
night: exceptionally warm
rain: typical rainfall
wind: typical
29°Cexceptionally warm
usually 22°C–28°C
warmer than 90% of similar days
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
28°Cwarmer than usual
usually 21°C–28°C
warmer than 85% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
28°Cwarmer than usual
usually 21°C–27°C
warmer than 82% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
28°Cwarmer than usual
usually 21°C–27°C
warmer than 84% of similar days
night: exceptionally warm
rain: more rain than usual
wind: typical
27°Cwarmer than usual
usually 21°C–27°C
warmer than 83% of similar days
night: exceptionally warm
rain: typical rainfall
wind: lighter than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 24°C by day. The coolest year was 2007 (19°C) and the warmest was 2008 (30°C). The current forecast averages 29°C - higher than in 93% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
Weather warnings - Herceg Novi
Heatorange level
from 4 Sept, 12:00 to 6 Sept, 23:59
Areas: Adriatic coast
High temperatures and risk of overheating. Drink plenty of water, avoid the midday sun and look after the elderly.
Fire riskorange level
from 5 Sept, 00:01 to 6 Sept, 23:59
Areas: Adriatic coast
High fire risk. Be careful with fire and follow local bans.
Strong windyellow level
from 6 Sept, 00:00 to 6 Sept, 23:59
Areas: Adriatic coast
Wind gusts can break branches and make driving harder. Watch for falling objects and stay away from trees.
Source: national weather service via Meteoalarm (EUMETNET). Yellow - be aware, orange - be prepared, red - take action.
14-day forecast - Herceg Novi
Herceg Novi 30 & 45-day weather - long-range outlook
Next 16 days · forecast
28°
around 26° at night · days with rain: 6
Weeks 3-4 · avg for September
25°
around 18° at night · rain chance 29%
Weeks 5-7 · avg for October
21°
around 13° at night · rain chance 36%
The 30 & 45-day outlook for Herceg Novi: the next 16 days are a numerical forecast updated daily - on average 28° by day and 26° at night. Further out we rely on multi-year climate averages: around 25° in September, and about 21° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Herceg Novi
Saturday5 September 2026
☀️31°clear sky
Sunday6 September 2026
☀️30°clear sky
Monday7 September 2026
☀️29°clear sky
Tuesday8 September 2026
🌧️28°light rain
Wednesday9 September 2026
☀️28°clear sky
Thursday10 September 2026
☀️28°clear sky
Friday11 September 2026
🌧️27°light rain
Saturday12 September 2026
☀️26°clear sky
Sunday13 September 2026
🌤️25°a few clouds
Monday14 September 2026
🌧️26°light rain
Tuesday15 September 2026
☀️26°clear sky
Wednesday16 September 2026
☀️27°clear sky
Thursday17 September 2026
🌧️28°light rain
Friday18 September 2026
☁️28°broken clouds
Saturday19 September 2026
☁️28°broken clouds
Sunday20 September 2026
☀️27°clear sky
UV index in Herceg Novi - is it safe to sunbathe?
Today the UV index in Herceg Novi is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.
Pollen in Herceg Novi - info for allergy sufferers
Today ragweed pollen is highest in Herceg Novi - about 35 grains/m³, high level. Allergy sufferers should limit time outdoors on dry, windy days and take medication as advised. Pollen levels are a CAMS model forecast and are indicative.
Sea temperature - Herceg Novi
Water today
28°C
Week avg
28°C
Waves today
0.2 m
How's the water?
very warm
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Herceg Novi weather through the year
Warmest, driest months on average: April, May, June, July.
Upcoming public holidays in Montenegro: New Year's Day — 1 January · New Year's Day — 2 January · Labour Day — 1 May.
Nearby and related places
FAQ - Herceg Novi weather
What is the weather like in Herceg Novi today?
Today it is about 31° during the day and 27° at night, clear sky.
How far ahead can I check the forecast for Herceg Novi?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.