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Photo by Szilas, Public domain, via Wikimedia Commons.
Best time to visit Koper
Slovenia · Europe
All twelve months scored on daily temperature, rainfall, humidity and holiday crowding.
The year in Koper
Tap a month for its page
- JanJKoper in January: ok
- FebFKoper in February: ok
- MarMKoper in March: ok
- AprAKoper in April: sweet spot
- MayMKoper in May: good
- JunJKoper in June: sweet spot, busy
- JulJKoper in July: sweet spot, busy
- AugAKoper in August: sweet spot, busy
- SepSKoper in September: good
- OctOKoper in October: good
- NovNKoper in November: ok
- DecDKoper in December: ok
- Sweet spot
- Good
- OK
- Avoid
- Busy
Plan this trip
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Flights
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Where to stay
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Luxury
Things to do
Car hire
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Travel insurance
Check whether your bank card or home insurance already covers this trip.
If the trip needs a visa, the travel agent or visa centre usually sells the cover it asks for.
Mobile data (eSIM)
Your own plan's EU roaming may already cover this.
Renting a pocket Wi-Fi is the other common way to stay connected.
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Things to do in Koper
- Pretorian Palace Venetian Gothic palace in Koper, Slovenia
- Tartini Square Main town square in Piran
- St. George, Piran parish church Slovenian catholic church
- Holy Trinity Church Church in Hrastovlje, Slovenia
- Assumption of Mary Church, Koper Church in Koper, Slovenia
- Loggia Palace It was used as a debate club for all the townsmen, with their discussions considered by the city council as well.
- Da Ponte Fountain The biggest city fountain is a reproduction of the Rialto Bridge in Venice.
Tours and tickets in Koper
Each site opens on its own search: choose your dates there. A few open on their home page, where you type the place too. Links marked Ad pay us a commission if you book, at no extra cost to you; most pay nothing, and what a site pays never decides whether it is listed or where. How we rank
Sights and their lines from Wikivoyage (Koper), licensed CC BY-SA 4.0, and Wikidata; in order of how often each one's Wikipedia article was read on phones in the last 12 months.
Month by month
| Month | Max °C | Rain days | Humidity | Sun h/day | Verdict | Why |
|---|---|---|---|---|---|---|
| Jan | 9° | 7d | 72% | 5.9h | ok | 9C max, 7 rainy days |
| Feb | 11° | 8d | 72% | 7.0h | ok | 11C max, 8 rainy days |
| Mar | 14° | 8d | 66% | 9.1h | ok | 14C max, 8 rainy days |
| Apr | 17° | 8d | 64% | 10.5h | sweet spot | 17C max, 8 rainy days |
| May | 21° | 12d | 69% | 11.2h | good | 21C max, 12 rainy days |
| Jun | 27° | 5d | 64% | 13.2h | sweet spot busy | busier than usual |
| Jul | 29° | 6d | 61% | 13.2h | sweet spot busy | busier than usual |
| Aug | 30° | 5d | 60% | 12.3h | sweet spot busy | busier than usual |
| Sep | 24° | 8d | 68% | 10.1h | good | 24C max, 8 rainy days |
| Oct | 19° | 8d | 74% | 8.3h | good | 19C max, 8 rainy days |
| Nov | 14° | 10d | 74% | 6.1h | ok | 14C max, 10 rainy days |
| Dec | 11° | 10d | 75% | 5.0h | ok | 11C max, 10 rainy days |
Rain days are the days with at least 1 mm of rain, as a weather station counts them.
Weather read at the old town: ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.
A busy month is a crowded one, not a bad one — usually it is crowded because the weather is good. It is flagged rather than scored down, and crowds alone never make a month “avoid”: that is reserved for weather worth skipping.
How busy it gets
Then and now
Koper's June days now average 27.0°C, 4.6°C warmer than in 1981–1990. 12 of 12 months are clearly warmer.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981–90 | 7.2° | 7.8° | 11.2° | 14.8° | 19.3° | 22.4° | 26.1° | 25.7° | 22.5° | 17.9° | 11.8° | 8.8° |
| 2017–26 | 8.9° | 10.8° | 13.6° | 17.3° | 21.0° | 27.0° | 29.0° | 29.5° | 24.2° | 19.5° | 14.1° | 10.6° |
| Change | +1.7° | +3.0° | +2.4° | +2.5° | +1.7° | +4.6° | +2.9° | +3.8° | +1.8° | +1.5° | +2.3° | +1.8° |
The average daily high, month by month, for the nearest ERA5 grid cell. Bold is a clear change; grey is within the ordinary spread between years. Every destination, ranked.
Getting there
Fly into Ronchi dei Legionari/Trieste (TRS), then drive. The flights under Where to book are to Ronchi dei Legionari/Trieste.
| Ronchi dei Legionari/Trieste (TRS) | the drive is not measured yet |
|---|---|
| Zgornji Brnik (LJU) | the drive is not measured yet |
The drive from each airport is the road's, from openrouteservice.org by HeiGIT: typical, not a schedule.
How far Koper is depends on where you set off from — the months above do not.
Open in Rome2rio for every way from to Koper, flying or not.
Before you go
Type C and F plugs at 230 V. Drives on the right. The currency is the Euro. No UK Foreign Office advice against travel. Global Affairs Canada: Exercise normal security precautions. US State Department: Level 1: Exercise Normal Precautions. Everything for Slovenia: cost of living, languages, emergency numbers and health.
Being there
On arrival
- Paying — Slovenia uses the euro. Cash still settles nearly two-thirds of payments in shops, cafés and the like (64% in 2024, by the European Central Bank's count), and ATMs are rare in the mountains and small villages, so carry enough cash there.
- UPI, for visitors from India — Not accepted for paying here; bring a card that works abroad.
- Tipping — Not generally practised: people may round up to the next euro, or tip for truly exceptional service.
Getting around Koper
- Apps — Rides: Uber, Wizi. Maps: Google Maps, Apple Maps. Use only officially marked taxis, and confirm the fare in advance or insist that the driver uses the meter, as you may be overcharged.
Koper's Old City can easily be covered on foot. There are a number local buses that can take you from the main bus station to the old city centre or the newer urban and industrial area. More on Wikivoyage
From the Wikivoyage article on Koper, written by travellers and licensed CC BY-SA 4.0.
Help
- Emergency — police 113 · ambulance and fire 112. For mountain rescue, call 112.
TravelCharika is not an emergency service: we cannot call for help or send anyone. Numbers can change; if one fails, ask someone local or your hotel.
Your embassy — : how to reach your embassy or consulate abroad. A guess from your city, : a city is not a passport.
Put together by hand from the sources listed, checked 8 October 2026. Apps, cards and rules change, so check before you rely on one.
Sources (17)
- gov.uk/foreign-travel-advice/slovenia/getting-help
- gov.uk/foreign-travel-advice/slovenia/safety-and-security
- travel.gc.ca/destinations/slovenia
- uber.com/global/en/r/slovenia/cities
- wizi.si/mesta/ljubljana
- apps.apple.com/si/app/wizi/id1078895979
- ecb.europa.eu/stats/ecb_surveys/space/html/ecb.space2024~19d46f0f17.en.html
- slovenia.info/en/plan-your-trip/getting-to-and-around-slovenia/to-slovenia-by-air
- slovenia.info/en/plan-your-trip/practical-information
- ap-ljubljana.si/en/bus-transport-in-republic-of-slovenia
- lpp.si/en/payment-methods
- lpp.si/en/frequently-asked-questions-and-answers
- en.wikivoyage.org/wiki/Slovenia
- developers.google.com/maps/coverage
- apple.com/ios/feature-availability
- pib.gov.in/PressReleasePage.aspx?PRID=2286608
- rbidocs.rbi.org.in/rdocs/AnnualReport/PDFs/09PAYMENT290526C6588B796E664822A2BD0DEB6452CAD4.PDF
Koper in pictures
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MrPanyGoff, CC BY-SA 4.0, via Wikimedia Commons
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MrPanyGoff, CC BY-SA 4.0, via Wikimedia Commons
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Aktron, CC BY-SA 4.0, via Wikimedia Commons
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Aktron, CC BY-SA 4.0, via Wikimedia Commons
What Koper is like
Koper (Italian: Capodistria) is Slovenia's only commercial port and one of its oldest towns with a very rich history. More on Wikivoyage
- Worth seeing
- Koper old town Koper's main sight of interest is the Venetian-era old city, of which the main structures and squares have been fully renovated and restored. More on Wikivoyage
- Worth doing
- There is a public beach in the sea just west of the marina. Football: FC Koper play soccer in PrvaLiga, the top tier. More on Wikivoyage
- Getting in
- The nearest airport is in Trieste (TRS IATA - 64 km), with Pula (PUY IATA - 102 km), Ljubljana (LJU IATA - 124 km), and Venice airports (VCE IATA, TSF IATA - about 174 km) as options. More on Wikivoyage
From the Wikivoyage article on Koper, written by travellers and licensed CC BY-SA 4.0; the full article has far more. The numbers above are measured; this is experience.
Around Koper
Also in Slovenia
Nearby
Kind of place
Koper is in Slovenia, Europe. Distances are great-circle, so a short one can still be a long way round.
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