Kalmar Weather in May
Thinking of visiting Kalmar in May? Expect moderate temperatures reaching 15°C (59°F) during the day, dropping to 7°C (45°F) at night, with some rainfall likely.
Rainfall in Kalmar in May
This month experiences about 10 days of rain according to historical data, averaging 46 mm (1.8 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Kalmar in May
If you're visiting Kalmar in May, expect highs of 15°C (59°F) and overnight lows around 7°C (45°F). The difference between afternoon and evening temperatures is usually noticeable. 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 Kalmar in May
The month enjoys around 261 hours of sunshine, creating mostly sunny days despite the cool temperatures.
Average water temperature in May
At 7°C (45°F), the water is very cold. Most people find it too uncomfortable for anything beyond a brief wade.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Kalmar.
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 Kalmar's climate page.
Kalmar Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
15°C (59°F)
Water Temperature
7°C (45°F)
Chance of Rain
32%
Precipitation
46 mm (1.8 in)
Rainy days
10 days
Humidity
76%
Sunshine
261 hours
Percentage Sunshine
52%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kalmar typically rise from around 13°C (55°F) at the start of May to approximately 17°C (63°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 8°C (46°F).
Average temperatures in May
Historical weather for Kalmar in May
Browse day-by-day weather records for Kalmar spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kalmar historical weather extremes in May
Based on weather observations in Kalmar between 1976 and 2025, these are the recorded extremes during May.
- The hottest May day on record in Kalmar reached 29°C (84°F) (May 27, 2017).
- The coldest May day was on May 12, 1978, with a maximum of 3°C (37°F).
- Nighttime temperatures dropped to -4°C (25°F) on May 5, 2023, marking the coldest May night on record.
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 Kalmar in May
The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. Expect water temperatures of around 7°C (45°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Kalmar 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 Kalmar's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Kalmar climate overview or explore weather in Sweden.
