Karlskrona Weather in May
With daytime temperatures of 14°C (57°F) and nighttime lows of 7°C (45°F), May in Karlskrona brings moderate temperatures during the day. Some rainfall is to be expected during the month.
Rainfall in Karlskrona in May
Historically, the month has about 11 days of rain, averaging 45 mm (1.8 in) in total. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Karlskrona in May
In May, Karlskrona sees moderate temperatures, with highs of 14°C (57°F). Nights drop to around 7°C (45°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Karlskrona in May
Expect sunny days throughout the month, with an estimated 261 hours of sunshine. Despite the cool temperatures, the sunny skies make it a pleasant time to visit Karlskrona.If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Sweden, check out our Karlskrona's climate page.
Karlskrona Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
14°C (57°F)
Chance of Rain
35%
Precipitation
45 mm (1.8 in)
Rainy days
11 days
Humidity
76% *
Sunshine
261 hours *
Percentage Sunshine
52% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Karlskrona typically rise from around 12°C (54°F) at the start of May to approximately 16°C (61°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 9°C (48°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Karlskrona in May
Browse day-by-day weather records for Karlskrona spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Karlskrona historical weather extremes in May
According to our 50 years of weather records for Karlskrona, the following extremes were recorded between 1976 and 2026.
- The hottest May day on record in Karlskrona reached 28°C (82°F) (May 21, 1993).
- Karlskrona experienced its chilliest May day on May 1, 1985, reaching only 3°C (37°F).
- The lowest overnight temperature recorded in May was -4°C (25°F) (May 7, 1999).
Best Places in Sweden in May
Find out more about the weather in Sweden and which places have the best travel conditions in this month. See all of Sweden in May →
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What to Wear in Karlskrona in May
Pack for changing conditions in Karlskrona in May. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Karlskrona in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Sweden, check out our Karlskrona's climate page.
Temperature Rainfall Sunshine Humidity
See the full Karlskrona climate overview or explore weather in Sweden.
