Koper
April
Weather in Koper for April 2026
Your guide to Koper weather in April - trends and predictions
In general, the average temperature in Koper at the beginning of April is 15.6 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 18.1 °C by the end of April.
The climate of Koper in April is notably wet, with an average of 15 rainy days, and a total of 93.3 mm of precipitation.
Temperatures
Rain 🌧️
15
Dry days
15
Rainy days
0
Snow days
17°/8°
Temperatures
15 km/h
Avg max wind
71 %
Avg humidity
Koper Weather April
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Temperatures trend during April in Koper
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April weather in Koper day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Apr. |  Moderate or heavy rain shower | 14° /7° | 9.9 mm | 4 | |
| 2 Apr. |  Patchy light rain with thunder | 16° /7° | 2.8 mm | 4 | |
| 3 Apr. |  Patchy light drizzle | 15° /6° | 0.9 mm | 4 | |
| 4 Apr. |  Patchy rain possible | 17° /7° | 0.1 mm | 5 | |
| 5 Apr. | Patchy rain possible | 17° /7° | 0.4 mm | 5 | |
| 6 Apr. |  Partly cloudy | 15° /6° | 0.1 mm | 4 | |
| 7 Apr. |  Sunny | 15° /5° | 0 mm | 5 | |
| 8 Apr. |  Overcast | 18° /7° | 0 mm | 5 | |
| 9 Apr. | Overcast | 18° /7° | 0 mm | 5 | |
| 10 Apr. | Overcast | 18° /7° | 0 mm | 5 | |
| 11 Apr. | Partly cloudy | 19° /8° | 0 mm | 6 | |
| 12 Apr. | Sunny | 22° /10° | 0 mm | 6 | |
| 13 Apr. | Sunny | 22° /10° | 0.7 mm | 6 | |
| 14 Apr. | Partly cloudy | 18° /12° | 14.7 mm | 5 | |
| 15 Apr. | Partly cloudy | 18° /11° | 20.9 mm | 5 | |
| 16 Apr. | Light drizzle | 20° /7° | 3.6 mm | 5 | |
| 17 Apr. | Light rain shower | 17° /5° | 2.3 mm | 4 | |
| 18 Apr. | Patchy rain possible | 13° /6° | 1.1 mm | 3 | |
| 19 Apr. | Partly cloudy | 15° /6° | 0.5 mm | 4 | |
| 20 Apr. | Light drizzle | 15° /6° | 0.5 mm | 4 | |
| 21 Apr. | Overcast | 17° /8° | 0 mm | 4 | |
| 22 Apr. |  Moderate rain | 17° /8° | 7.4 mm | 4 | |
| 23 Apr. | Light drizzle | 16° /7° | 6.7 mm | 4 | |
| 24 Apr. | Light rain shower | 15° /7° | 10.8 mm | 4 | |
| 25 Apr. | Light rain shower | 12° /6° | 3.8 mm | 3 | |
| 26 Apr. | Light rain shower | 13° /7° | 3.4 mm | 3 | |
| 27 Apr. | Light rain shower | 19° /7° | 1.5 mm | 5 | |
| 28 Apr. | Overcast | 21° /10° | 0 mm | 5 | |
| 29 Apr. | Sunny | 23° /10° | 0 mm | 6 | |
| 30 Apr. | Patchy rain possible | 24° /10° | 1 mm | 6 | |
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Important Notice
Our weather forecast for Koper in April is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Koper forecast closer to your planned date for the most up-to-date weather information.
Change Month
Koper in April - FAQ
What are the expected maximum and minimum temperatures in Koper during April?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Koper during April?
Moderate rainfall is anticipated in Koper during April, with a total of 93.3 mm spread over approximately 15 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Koper during April?
The average wind speed in Koper during April is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
April rainfall patterns in Koper
Explore the daily rainfall trends and prepare for Kopers April weather 💧
UV exposure in Koper during April
Stay informed about UV levels for safe outdoor activities throughout the month of April ☀️
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