Sun, sea & sand

Kalmar weather in May

Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

33

Holiday weather in May

Poor

Best time to visit: April – August

What is the weather like in Kalmar in May?

In May, Kalmar is cool: daytime highs average 13 °C, and nights cool down to about 8 °C. The sea averages 8.2 °C – swimming is only for the hardy. With around 9 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 9 rainy days and 42 mm in total. All in all, May is not an ideal month for a holiday in Kalmar.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score323333
Day8°13°18°
Night3°8°12°
Sea4°8°13°
Sun8 h9 h10 h
Rain days699

More details for May

Daylight
16 h 22 min04:39 – 21:02
UV index
5 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
20 km/haverage daily peakAll months
Cloud cover
54 %on averageAll months
Hot days
0 days30 °C or more
Snow days
0 days1 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 %100 %
  • Few rainy daysweight 20 %64 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in May

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella

Kalmar in May: quick answers

Is Kalmar hot in May?

No. In May, Kalmar is cool: daytime highs average 13 °C and nights drop to about 8 °C.

Can you swim in Kalmar in May?

Only if you don't mind cold water: in May the sea averages just 8.2 °C. Comfortable swimming temperatures are not reached at any time of year.

Does it rain much in Kalmar in May?

Rain is frequent, with about 9 rainy days and 42 mm in total.

Kalmar month by month

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