Weather in Koper in April
Climate normals based on 10 years of historical data for Koper, Slowenien.
Average high
17°C
Average low
9°C
Rainfall
89 mm
10 rainy days
Sunshine
4.8h/day
Luftfeuchtigkeit
70%
How Hot Is Koper in April?
Daytime temperatures in Koper climb to about 17°C in April, cooling to 9°C overnight as the city shakes off winter.
Sunshine Hours in April
Koper's April mixes long daylight with frequent cloud — 4.8h of direct sun on average.
Does It Rain In Koper In April?
Showers come almost daily: 89mm in 10 days in Koper.
Is Koper Humid In April?
Mugginess defines the air in Koper: 70% humidity, especially heavy after rain.
Wind In Koper In April
Breezes around 16 kph in Koper this April — comfortable for outdoor activity.
Cloud Cover In Koper In April
Grey, cloudy days are the norm: 56% average cover in Koper.
Cities With Similar Weather In April
Weather in Koper, month by month
| Month | High / Low | Regen | |
|---|---|---|---|
| Wetter im Januar | 8°C / 2°C | 82mm | Details → |
| Wetter im Februar | 10°C / 3°C | 103mm | Details → |
| Wetter im März | 13°C / 5°C | 87mm | Details → |
| Wetter im April | 17°C / 9°C | 89mm | |
| Wetter im Mai | 21°C / 13°C | 139mm | Details → |
| Wetter im Juni | 26°C / 18°C | 96mm | Details → |
| Wetter im Juli | 29°C / 20°C | 85mm | Details → |
| Wetter im August | 29°C / 21°C | 109mm | Details → |
| Wetter im September | 24°C / 16°C | 180mm | Details → |
| Wetter im Oktober | 19°C / 12°C | 143mm | Details → |
| Wetter im November | 13°C / 7°C | 150mm | Details → |
| Wetter im Dezember | 10°C / 4°C | 119mm | Details → |