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
- 8°
- 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
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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 |
| Avg low (°C) | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 15 | 10 |
| 2 | 15 | 10 |
| 3 | 15 | 10 |
| 4 | 15 | 10 |
| 5 | 15 | 9 |
| 6 | 14 | 9 |
| 7 | 14 | 9 |
| 8 | 14 | 9 |
| 9 | 14 | 9 |
| 10 | 14 | 9 |
| 11 | 13 | 9 |
| 12 | 13 | 8 |
| 13 | 13 | 8 |
| 14 | 13 | 8 |
| 15 | 12 | 8 |
| 16 | 12 | 8 |
| 17 | 12 | 7 |
| 18 | 12 | 7 |
| 19 | 12 | 7 |
| 20 | 11 | 7 |
| 21 | 11 | 7 |
| 22 | 11 | 7 |
| 23 | 11 | 6 |
| 24 | 11 | 6 |
| 25 | 11 | 6 |
| 26 | 10 | 6 |
| 27 | 10 | 6 |
| 28 | 10 | 6 |
| 29 | 10 | 6 |
| 30 | 10 | 5 |
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.
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.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 7° / 3° | 77 | 9.1 | 0.9 | 8.9 | 1.1 |
| Feb | 9° / 3° | 85 | 8.5 | 1.5 | 10.1 | 1.6 |
| Mar | 12° / 6° | 86 | 9.3 | 0.7 | 11.6 | 3.3 |
| Apr | 16° / 9° | 95 | 11.2 | 0.2 | 13.2 | 4.8 |
| May | 20° / 14° | 103 | 11.7 | 0 | 14.7 | 6.2 |
| Jun | 24° / 18° | 85 | 10.1 | 0 | 15.4 | 7.0 |
| Jul | 27° / 20° | 62 | 8.2 | 0 | 15.1 | 7.2 |
| Aug | 27° / 20° | 89 | 8.5 | 0 | 13.9 | 7.1 |
| Sep | 22° / 16° | 147 | 10.3 | 0 | 12.3 | 6.8 |
| Oct | 18° / 12° | 157 | 12.2 | 0 | 10.7 | 5.5 |
| Nov | 12° / 8° | 167 | 12.7 | 0.3 | 9.3 | 3.1 |
| Dec | 8° / 4° | 112 | 9.9 | 0.9 | 8.6 | 1.5 |
Cloud cover in November
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%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 44 | 42 | 41 | 41 | 40 | 41 | 40 | 39 | 39 | 40 | 40 | 40 | 41 | 41 | 41 | 41 | 41 | 41 | 40 | 40 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 42 |
| Cloudier (%) | 56 | 58 | 59 | 59 | 60 | 59 | 60 | 61 | 61 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 59 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 58 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 44 | 56 |
| 2 | 42 | 58 |
| 3 | 41 | 59 |
| 4 | 41 | 59 |
| 5 | 40 | 60 |
| 6 | 41 | 59 |
| 7 | 40 | 60 |
| 8 | 39 | 61 |
| 9 | 39 | 61 |
| 10 | 40 | 60 |
| 11 | 40 | 60 |
| 12 | 40 | 60 |
| 13 | 41 | 59 |
| 14 | 41 | 59 |
| 15 | 41 | 59 |
| 16 | 41 | 59 |
| 17 | 41 | 59 |
| 18 | 41 | 59 |
| 19 | 40 | 60 |
| 20 | 40 | 60 |
| 21 | 41 | 59 |
| 22 | 41 | 59 |
| 23 | 41 | 59 |
| 24 | 41 | 59 |
| 25 | 41 | 59 |
| 26 | 41 | 59 |
| 27 | 41 | 59 |
| 28 | 41 | 59 |
| 29 | 41 | 59 |
| 30 | 42 | 58 |
Chance of precipitation in November
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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 41 | 42 | 42 | 43 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 43 | 42 | 42 | 41 | 41 | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 37 | 37 | 36 |
| Snow chance (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 41 | 0 |
| 2 | 42 | 0 |
| 3 | 42 | 0 |
| 4 | 43 | 0 |
| 5 | 44 | 0 |
| 6 | 44 | 0 |
| 7 | 45 | 0 |
| 8 | 45 | 0 |
| 9 | 45 | 0 |
| 10 | 45 | 0 |
| 11 | 45 | 0 |
| 12 | 45 | 1 |
| 13 | 45 | 1 |
| 14 | 44 | 1 |
| 15 | 44 | 1 |
| 16 | 43 | 1 |
| 17 | 42 | 1 |
| 18 | 42 | 2 |
| 19 | 41 | 2 |
| 20 | 41 | 2 |
| 21 | 40 | 2 |
| 22 | 40 | 2 |
| 23 | 39 | 2 |
| 24 | 39 | 2 |
| 25 | 38 | 2 |
| 26 | 38 | 2 |
| 27 | 37 | 1 |
| 28 | 37 | 1 |
| 29 | 37 | 1 |
| 30 | 36 | 1 |
Humidity in November
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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 85 | 86 | 88 | 88 | 89 | 89 | 90 | 90 | 92 | 92 | 93 | 93 | 94 | 94 | 95 | 95 | 95 | 96 | 96 | 97 | 97 | 97 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 |
| Comfortable (%) | 13 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
| Humid (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 85 | 13 | 2 |
| 2 | 86 | 12 | 2 |
| 3 | 88 | 11 | 1 |
| 4 | 88 | 11 | 1 |
| 5 | 89 | 10 | 1 |
| 6 | 89 | 10 | 1 |
| 7 | 90 | 9 | 1 |
| 8 | 90 | 9 | 1 |
| 9 | 92 | 8 | 0 |
| 10 | 92 | 8 | 0 |
| 11 | 93 | 7 | 0 |
| 12 | 93 | 7 | 0 |
| 13 | 94 | 6 | 0 |
| 14 | 94 | 6 | 0 |
| 15 | 95 | 5 | 0 |
| 16 | 95 | 5 | 0 |
| 17 | 95 | 5 | 0 |
| 18 | 96 | 4 | 0 |
| 19 | 96 | 4 | 0 |
| 20 | 97 | 3 | 0 |
| 21 | 97 | 3 | 0 |
| 22 | 97 | 3 | 0 |
| 23 | 98 | 2 | 0 |
| 24 | 98 | 2 | 0 |
| 25 | 98 | 2 | 0 |
| 26 | 99 | 1 | 0 |
| 27 | 99 | 1 | 0 |
| 28 | 99 | 1 | 0 |
| 29 | 99 | 1 | 0 |
| 30 | 99 | 1 | 0 |
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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
Sunrise & sunset in November
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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.9 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.6 | 9.6 | 9.5 | 9.5 | 9.4 | 9.4 | 9.4 | 9.3 | 9.3 | 9.2 | 9.2 | 9.2 | 9.1 | 9.1 | 9.1 | 9.0 | 9.0 | 9.0 | 8.9 | 8.9 | 8.9 | 8.8 | 8.8 | 8.8 |
| Sunrise (AM) | 6:52 | 6:53 | 6:55 | 6:56 | 6:58 | 6:59 | 7:00 | 7:02 | 7:03 | 7:05 | 7:06 | 7:07 | 7:09 | 7:10 | 7:12 | 7:13 | 7:14 | 7:16 | 7:17 | 7:18 | 7:20 | 7:21 | 7:22 | 7:23 | 7:25 | 7:26 | 7:27 | 7:28 | 7:29 | 7:31 |
| Sunset (PM) | 4:45 | 4:44 | 4:43 | 4:41 | 4:40 | 4:39 | 4:37 | 4:36 | 4:35 | 4:34 | 4:33 | 4:32 | 4:31 | 4:30 | 4:29 | 4:28 | 4:27 | 4:26 | 4:25 | 4:24 | 4:24 | 4:23 | 4:22 | 4:21 | 4:21 | 4:20 | 4:20 | 4:19 | 4:19 | 4:18 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.9 | 6:52 | 4:45 |
| 2 | 9.8 | 6:53 | 4:44 |
| 3 | 9.8 | 6:55 | 4:43 |
| 4 | 9.8 | 6:56 | 4:41 |
| 5 | 9.7 | 6:58 | 4:40 |
| 6 | 9.7 | 6:59 | 4:39 |
| 7 | 9.6 | 7:00 | 4:37 |
| 8 | 9.6 | 7:02 | 4:36 |
| 9 | 9.5 | 7:03 | 4:35 |
| 10 | 9.5 | 7:05 | 4:34 |
| 11 | 9.4 | 7:06 | 4:33 |
| 12 | 9.4 | 7:07 | 4:32 |
| 13 | 9.4 | 7:09 | 4:31 |
| 14 | 9.3 | 7:10 | 4:30 |
| 15 | 9.3 | 7:12 | 4:29 |
| 16 | 9.2 | 7:13 | 4:28 |
| 17 | 9.2 | 7:14 | 4:27 |
| 18 | 9.2 | 7:16 | 4:26 |
| 19 | 9.1 | 7:17 | 4:25 |
| 20 | 9.1 | 7:18 | 4:24 |
| 21 | 9.1 | 7:20 | 4:24 |
| 22 | 9.0 | 7:21 | 4:23 |
| 23 | 9.0 | 7:22 | 4:22 |
| 24 | 9.0 | 7:23 | 4:21 |
| 25 | 8.9 | 7:25 | 4:21 |
| 26 | 8.9 | 7:26 | 4:20 |
| 27 | 8.9 | 7:27 | 4:20 |
| 28 | 8.8 | 7:28 | 4:19 |
| 29 | 8.8 | 7:29 | 4:19 |
| 30 | 8.8 | 7:31 | 4:18 |
Solar energy in November
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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.0 | 1.9 | 1.9 | 1.9 | 1.8 | 1.8 | 1.8 | 1.7 | 1.7 | 1.7 | 1.6 | 1.6 | 1.6 | 1.6 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| Level | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.0 | Dim |
| 2 | 1.9 | Dim |
| 3 | 1.9 | Dim |
| 4 | 1.9 | Dim |
| 5 | 1.8 | Dim |
| 6 | 1.8 | Dim |
| 7 | 1.8 | Dim |
| 8 | 1.7 | Dim |
| 9 | 1.7 | Dim |
| 10 | 1.7 | Dim |
| 11 | 1.6 | Dim |
| 12 | 1.6 | Dim |
| 13 | 1.6 | Dim |
| 14 | 1.6 | Dim |
| 15 | 1.5 | Dim |
| 16 | 1.5 | Dim |
| 17 | 1.5 | Dim |
| 18 | 1.5 | Dim |
| 19 | 1.5 | Dim |
| 20 | 1.4 | Dim |
| 21 | 1.4 | Dim |
| 22 | 1.4 | Dim |
| 23 | 1.4 | Dim |
| 24 | 1.4 | Dim |
| 25 | 1.4 | Dim |
| 26 | 1.3 | Dim |
| 27 | 1.3 | Dim |
| 28 | 1.3 | Dim |
| 29 | 1.3 | Dim |
| 30 | 1.3 | Dim |
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).
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.
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 11 | 10 | 10 | 13 | 18 | 23 | 25 | 25 | 23 | 19 | 16 | 13 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 11 | Bracing |
| Feb | 10 | Bracing |
| Mar | 10 | Bracing |
| Apr | 13 | Bracing |
| May | 18 | Cool |
| Jun | 23 | Refreshing |
| Jul | 25 | Warm |
| Aug | 25 | Warm |
| Sep | 23 | Refreshing |
| Oct | 19 | Cool |
| Nov | 16 | Cool |
| Dec | 13 | Bracing |
UV index in Koper in November
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 7 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 7 | High |
| May | 7 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | Very high |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Koper in November
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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 22 | 20 | 20 | 19 | 16 | 16 | 16 | 13 | 12 | 14 | 14 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 22 | Moderate |
| Feb | 20 | Moderate |
| Mar | 20 | Moderate |
| Apr | 19 | Moderate |
| May | 16 | Moderate |
| Jun | 16 | Moderate |
| Jul | 16 | Moderate |
| Aug | 13 | Moderate |
| Sep | 12 | Moderate |
| Oct | 14 | Moderate |
| Nov | 14 | Moderate |
| Dec | 18 | Moderate |
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.
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.
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
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).