Sun, sea & sand

Kallithea, Halkidiki weather in May

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

47

Holiday weather in May

Fair

Best time to visit: June – September

What is the weather like in Kallithea, Halkidiki in May?

In May, Kallithea, Halkidiki is mild: daytime highs average 20 °C, and nights cool down to about 16 °C. The sea averages 18.8 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 46 mm. All in all, May is a so-so month for a holiday in Kallithea, Halkidiki.

May compared

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

AprilAprMayMayJuneJun
Score304794
Day16°20°25°
Night12°16°21°
Sea15°19°23°
Sun7 h8 h10 h
Rain days775

More details for May

Daylight
14 h 22 min06:11 – 20:33
UV index
9 · very highclear sky, noon (estimate)All months
Muggy days
1 daydew point 18 °C or more
Wind
15 km/haverage daily peak
Cloud cover
43 %on average
Hot days
0 days30 °C or more
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC+3Europe/Athens

How the score comes together

  • Temperatureweight 35 %20 %
  • Seaweight 25 %26 %
  • Sunshineweight 20 %90 %
  • Few rainy daysweight 20 %79 %

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

What to pack in May

  • Wetsuit for longer swims
  • Sunscreen
  • Sunglasses & sun hat

Kallithea, Halkidiki in May: quick answers

Is Kallithea, Halkidiki hot in May?

No. In May, Kallithea, Halkidiki is mild: daytime highs average 20 °C and nights drop to about 16 °C.

Can you swim in Kallithea, Halkidiki in May?

Only if you don't mind cold water: in May the sea averages just 18.8 °C. Comfortable swimming is possible from June to October.

Does it rain much in Kallithea, Halkidiki in May?

Rain falls on about 7 days, adding up to 46 mm.

Kallithea, Halkidiki 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)