Cetinje weather in September

In September, Cetinje sees average daytime highs of 23°C and overnight lows near 13°C, with 225 mm of rain across 10.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 20°C by the end. The sky is clear or mostly clear about 47% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Cetinje's 4th-clearest and 9th-windiest month. For the whole year in context, see Cetinje's year-round climate.

Daytime high
23°
4th warmest
Overnight low
13°
9th coldest
Rainfall
225 mm
10.8 wet days
Daylight
12 h 18 min
5:30 AM – 5:47 PM
Cloud cover
46%
4th clearest
Wind
5 km/h
9th windiest
Solar energy
4.35 kWh/m²
Travel score
6.8
out of 10

Cetinje is Old Royal Capital of Montenegro.

Density
17/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 20°C by the end.

A typical September day in Cetinje reaches about 23°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, September runs about 5°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12516
22515
32515
42515
52415
62415
72415
82414
92414
102314
112314
122314
132314
142314
152313
162213
172213
182213
192213
202213
212213
222112
232112
242112
252112
262112
272112
282012
292012
302011

How September really feels in Cetinje

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Cetinje weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°21412.45.39.30.7
Feb / 22312.35.810.31.2
Mar12° / 21312.93.811.62.8
Apr16° / 19314.41.113.14.3
May20° / 11°16414.5014.45.8
Jun24° / 15°10612.50156.7
Jul27° / 17°8010.7014.86.9
Aug27° / 17°8610.6013.76.8
Sep23° / 13°22510.8012.36.8
Oct18° / 27511.70.210.85.6
Nov12° / 35113.819.63.1
Dec / 30113.73.991.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27426
37327
47228
57030
67030
76931
86931
96832
106733
116733
126634
136634
146535
156436
166337
176337
186238
196238
206139
216040
225941
235941
245941
255743
265743
275644
285644
295644
305545

Chance of precipitation in September

Any precipitation

Cetinje gets around 225 mm of rain over 10.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
134
234
334
435
535
635
735
836
936
1036
1137
1237
1337
1437
1537
1637
1737
1837
1937
2037
2137
2237
2337
2437
2537
2637
2738
2838
2938
3039

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1304228
2324226
3334224
4354222
5374221
6394219
7404217
8424216
9434215
10444214
11454213
12464212
13474211
14494110
1550419
1651409
1753398
1855387
1956377
2057367
2160346
2261336
2362326
2465305
2566295
2667285
2768275
2870264
2971254
3072244

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 5:14 AM to 5:46 AM, and sunset from 6:14 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:146:14
213.05:156:13
312.95:166:11
412.95:176:09
512.85:186:07
612.85:196:05
712.75:206:04
812.75:216:02
912.65:236:00
1012.65:245:58
1112.55:255:56
1212.55:265:54
1312.45:275:53
1412.45:285:51
1512.35:295:49
1612.35:305:47
1712.25:315:45
1812.25:325:43
1912.15:335:42
2012.15:355:40
2112.05:365:38
2212.05:375:36
2311.95:385:34
2411.95:395:32
2511.85:405:31
2611.85:415:29
2711.75:425:27
2811.75:445:25
2911.65:455:23
3011.65:465:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.35 kWh/m².

For context, solar energy here swings from a low near 1.43 kWh/m² to a high of 6.61 kWh/m² in July across the year — September's 4.35 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
54.9Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.3Bright
174.3Bright
184.2Bright
194.2Bright
204.1Bright
214.1Bright
224.0Bright
234.0Moderate
243.9Moderate
253.9Moderate
263.8Moderate
273.8Moderate
283.7Moderate
293.7Moderate
303.6Moderate
Planning a trip in September

Is September a good time to visit Cetinje?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.8
Sightseeing
2nd-best month of the year
4.9
Beach & pool
4th-best month of the year

September is a reasonable time to visit Cetinje for sightseeing.

What to pack for Cetinje in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Cetinje sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

Sea temperature near Cetinje in September

The nearest coast averages about 24°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 24 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from May 26 to Oct 29 — about 5.2 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May19Cool
Jun23Refreshing
Jul25Warm
Aug26Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Cetinje in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cetinje peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowJul 17UV 9Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5High
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Cetinje?

Cetinje sits at 42.4°N, 18.9°E, 686 m above sea level, in Montenegro. The nearest listed city is Bečići, 12 km away.

BečićiKotorBudvaTivatPerastPodgoricaHerceg NoviBar

Topography around Cetinje

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cetinje.

Within 3 km, the terrain around Cetinje has large variations in elevation — a maximum elevation change of 644 m around an average of 798 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,738 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,600 m.

The land around Cetinje is covered by trees (57%) and grassland (24%) within 3 km, trees (66%) and grassland (20%) within 16 km, and trees (44%), water (28%) and grassland (21%) within 80 km.

3 km
644 m
16 km
1,738 m
80 km
2,600 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Bečići 12 km · Kotor 12 km · Budva 13 km · Tivat 19 km · Perast 21 km · Podgorica 29 km · Herceg Novi 32 km · Bar 36 km

Montenegro travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 42% of US
price level, 2025
GDP per capita
$14,817
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
86%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
7.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Orthodox 72%Muslim 19%Catholic 3%other 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Cetinje (42.3906°, 18.9142°, elevation 686 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).