Karlskrona weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Poor
Best time to visit: April – August
What is the weather like in Karlskrona in April?
In April, Karlskrona is cold: daytime highs average 9 °C, and nights cool down to about 4 °C. The sea averages 4.6 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 30 mm. All in all, April is not an ideal month for a holiday in Karlskrona.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 14 h 8 min05:54 – 20:02
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 57 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 1 day1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Stockholm
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %78 %
- Few rainy daysweight 20 %80 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in April
- Sunscreen
- Warm jacket
Karlskrona in April: quick answers
Is Karlskrona hot in April?
No. In April, Karlskrona is cold: daytime highs average 9 °C and nights drop to about 4 °C.
Can you swim in Karlskrona in April?
Only if you don't mind cold water: in April the sea averages just 4.6 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Karlskrona in April?
Rain falls on about 7 days, adding up to 30 mm.
Karlskrona month by month
The whole year in KarlskronaAll destinations: SwedenWhere to go in AprilSea temperature in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences