Koper weather in November

In November, Koper sees average daytime highs of 12°C and overnight lows near 8°C, with 167 mm of precipitation across 12.7 wet days and about 9.3 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 10°C by the end. The sky is clear or mostly clear about 29% of the time in November, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of November to 8 h 48 min by month's end. Set against the rest of the year, November is Koper's 12th-clearest and 1st-windiest month. For the whole year in context, see Koper's year-round climate.

Daytime high
12°
8th warmest
Overnight low
5th coldest
Precipitation
167 mm
12.7 wet days
Daylight
9 h 12 min
7:13 AM – 4:28 PM
Cloud cover
62%
12th clearest
Wind
11 km/h
1st windiest
Solar energy
1.53 kWh/m²
Travel score
3.1
out of 10

Koper is city in southwest Slovenia.

Air quality
Good
PM10 16.8 µg/m³ · 2019
Density
1,981/km²
people per km²

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

Temperature in November

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 15°C in the first days to 10°C by the end.

A typical November day in Koper reaches about 12°C in the afternoon and slips back to 8°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 16°C. Set against its neighbours, November runs about 5°C cooler than October and about 4°C warmer than December.

10°15°20°151015202530
Avg high (°C)Avg low (°C)
11510
21510
31510
41510
5159
6149
7149
8149
9149
10149
11139
12138
13138
14138
15128
16128
17127
18127
19127
20117
21117
22117
23116
24116
25116
26106
27106
28106
29106
30105

How November really feels in Koper

Once humidity and wind are folded in, November 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

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

Koper weather by month

How November compares with the rest of the year at a glance. November is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 779.10.98.91.1
Feb / 858.51.510.11.6
Mar12° / 869.30.711.63.3
Apr16° / 9511.20.213.24.8
May20° / 14°10311.7014.76.2
Jun24° / 18°8510.1015.47.0
Jul27° / 20°628.2015.17.2
Aug27° / 20°898.5013.97.1
Sep22° / 16°14710.3012.36.8
Oct18° / 12°15712.2010.75.5
Nov12° / 16712.70.39.33.1
Dec / 1129.90.98.61.5

Cloud cover in November

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in November, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of November, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24258
34159
44159
54060
64159
74060
83961
93961
104060
114060
124060
134159
144159
154159
164159
174159
184159
194060
204060
214159
224159
234159
244159
254159
264159
274159
284159
294159
304258

Chance of precipitation in November

Any precipitationSnow

Koper gets around 167 mm of rain and snow over 12.7 wet days in November, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 42% and peaks near 45% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1410
2420
3420
4430
5440
6440
7450
8450
9450
10450
11450
12451
13451
14441
15441
16431
17421
18422
19412
20412
21402
22402
23392
24392
25382
26382
27371
28371
29371
30361

Humidity in November

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, November lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
185132
286122
388111
488111
589101
689101
79091
89091
99280
109280
119370
129370
139460
149460
159550
169550
179550
189640
199640
209730
219730
229730
239820
249820
259820
269910
279910
289910
299910
309910

Wind in November

Winds average 11 km/h in November, the windiest month of the year.

Across November, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in November

DaylightNight

Daylight runs from about 9 h 54 min at the start of November to 8 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over November. Sunrise moves from 6:52 AM to 7:31 AM, and sunset from 4:45 PM to 4:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:524:45
29.86:534:44
39.86:554:43
49.86:564:41
59.76:584:40
69.76:594:39
79.67:004:37
89.67:024:36
99.57:034:35
109.57:054:34
119.47:064:33
129.47:074:32
139.47:094:31
149.37:104:30
159.37:124:29
169.27:134:28
179.27:144:27
189.27:164:26
199.17:174:25
209.17:184:24
219.17:204:24
229.07:214:23
239.07:224:22
249.07:234:21
258.97:254:21
268.97:264:20
278.97:274:20
288.87:284:19
298.87:294:19
308.87:314:18

Solar energy in November

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in November, about 1.53 kWh/m².

For context, solar energy here swings from a low near 1.2 kWh/m² to a high of 6.47 kWh/m² in July across the year — November's 1.53 kWh/m² sits near the bottom.

00.511.522.5151015202530
Solar energy (kWh/m²)Level
12.0Dim
21.9Dim
31.9Dim
41.9Dim
51.8Dim
61.8Dim
71.8Dim
81.7Dim
91.7Dim
101.7Dim
111.6Dim
121.6Dim
131.6Dim
141.6Dim
151.5Dim
161.5Dim
171.5Dim
181.5Dim
191.5Dim
201.4Dim
211.4Dim
221.4Dim
231.4Dim
241.4Dim
251.4Dim
261.3Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
Planning a trip in November

Is November a good time to visit Koper?

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

3.1
Sightseeing
9th-best month of the year
0.0
Beach & pool
8th-best month of the year

November is a weaker month for outdoor sightseeing in Koper.

What to pack for Koper in November

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

In November, Koper sees daytime highs around 12°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Koper in November

The nearest coast averages about 16°C in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 25°C and coldest in February near 10°C.

It's comfortable for a long swim from May 31 to Oct 9 — about 4.3 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar10Bracing
Apr13Bracing
May18Cool
Jun23Refreshing
Jul25Warm
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Koper in November

LowModerateHighVery highExtreme

Clear-sky midday UV in November peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Koper peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May7High
Jun8Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Koper in November

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where November falls, not just the annual average.

Air quality in Koper is worst in January — around 22 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (September, 12 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1822 µg/m³Sep 1412 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb20Moderate
Mar20Moderate
Apr19Moderate
May16Moderate
Jun16Moderate
Jul16Moderate
Aug13Moderate
Sep12Moderate
Oct14Moderate
Nov14Moderate
Dec18Moderate
Location & terrain

Where is Koper?

Koper sits at 45.5°N, 13.7°E, 12 m above sea level, in Slovenia. The nearest listed city is Trieste, 12 km away.

DivačaMonfalconeGoriziaPostojnaNova Gorica

Topography around Koper

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

Within 3 km, the terrain around Koper has only modest variations in elevation — a maximum elevation change of 238 m around an average of 24 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 575 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,150 m.

The land around Koper is covered by water (34%) and artificial surfaces (23%) within 3 km, trees (46%) and water (34%) within 16 km, and trees (48%) and water (29%) within 80 km.

3 km
238 m
16 km
575 m
80 km
2,150 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
November weather nearby: Trieste 12 km · Piran 13 km · Divača 24 km · Monfalcone 32 km · Gorizia 44 km · Postojna 45 km · Nova Gorica 46 km · Rovinj 52 km

Slovenia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 63% of US
price level, 2025
GDP per capita
$37,376
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
Religion
Catholic 69%atheist 14%Orthodox 4%non-believer/agnostic 4%

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 Koper (45.5482°, 13.7296°, elevation 12 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).