The sea temperature in Koper today is +27°C. Over the next 14 days, the water temperature is expected to stay between +25°C and +27°C. The water is warm enough for swimming and beach time. For a longer view, open the 30-day water temperature forecast.
Day and night air temperature
Day +31°C
Night +23°C
Sea water temperature by day
Water +27°C
Tap a date to open detailed daily weather
| Date | Day | Night | Sea t° | Wind | Precipitation | Humidity |
|---|---|---|---|---|---|---|
| 20 Mon |
+31°C
|
+23°C
|
+27°C | 4 m/s | 0.1 mm65% | 50% |
| 21 Tue |
+30°C
|
+21°C
|
+27°C | 4 m/s | 2.7 mm65% | 51% |
| 22 Wed |
+29°C
|
+18°C
|
+26°C | 5 m/s | 0 mm10% | 46% |
| 23 Thu |
+28°C
|
+20°C
|
+26°C | 3 m/s | 0.1 mm65% | 49% |
| 24 Fri |
+28°C
|
+18°C
|
+25°C | 3 m/s | 0 mm10% | 45% |
| 25 Sat |
+28°C
|
+20°C
|
+26°C | 3 m/s | 0.1 mm65% | 54% |
| 26 Sun |
+29°C
|
+21°C
|
+26°C | 4 m/s | 3.2 mm65% | 62% |
| 27 Mon |
+30°C
|
+22°C
|
+27°C | 3 m/s | 4.9 mm65% | 68% |
| 28 Tue |
+32°C
|
+23°C
|
+27°C | 3 m/s | 1.2 mm65% | 56% |
| 29 Wed |
+18°C
|
+14°C
|
+27°C | 2 m/s | 0.1 mm65% | 88% |
| 30 Thu |
+27°C
|
+15°C
|
+26°C | 3 m/s | 0 mm15% | 59% |
| 31 Fri |
+28°C
|
+16°C
|
+26°C | 3 m/s | 0 mm15% | 60% |
| 1 Sat |
+28°C
|
+17°C
|
+25°C | 3 m/s | 0 mm15% | 59% |
| 2 Sun |
+26°C
|
+17°C
|
+25°C | 4 m/s | 2.6 mm65% | 82% |