Koper, Slovenia’s only major port city, sits on the short stretch of Adriatic coastline the country has, and receives around 1,000 mm (about 39 inches) of rain a year, with a Mediterranean-influenced climate bringing the heaviest rain in autumn and a drier summer. Intense autumn storms moving in off the Adriatic can bring torrential short-term rainfall, sometimes causing coastal and urban flooding in the low-lying port area. As Slovenia’s main maritime gateway, sudden weather shifts here carry real operational significance for shipping. Because the coast introduces a genuinely different weather dynamic than Slovenia’s Alpine interior, radar tracking of approaching Adriatic storms is a valuable practical tool. Slovenia’s ARSO operates the national radar network.
Learn more: Hurricane Season Radar Guide · Open the full Rain Map
Frequently Asked Questions
Is it raining in Koper right now?
The live radar map above shows precipitation over Koper, Littoral in real time. Blue shades indicate light rain, while yellow, orange, and red mark heavier downpours. If no colored echoes appear over Koper, no significant rain is currently being detected.
How often does the Koper rain radar update?
The radar refreshes continuously, typically every few minutes, so the map reflects current conditions rather than an hours-old forecast. Press play to animate the most recent frames.
Can I see if a storm is heading toward Koper?
Yes. Press play on the radar to animate the last few hours of rainfall and watch which way rain cells over Littoral are moving – the clearest way to judge whether a shower will reach Koper or pass by.
Is this Koper rain radar free to use?
Yes, completely free – no account, app download, or sign-up required. It works in any browser on desktop and mobile.