Sun, sea & sand

Westerland, Sylt weather in May

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

28

Holiday weather in May

Poor

Best time to visit: April – August

What is the weather like in Westerland, Sylt in May?

In May, Westerland, Sylt is cool: daytime highs average 14 °C, and nights cool down to about 10 °C. The sea averages 11.3 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain is frequent, with about 10 rainy days and 53 mm in total. It is often windy, with gusts of around 32 km/h. All in all, May is not an ideal month for a holiday in Westerland, Sylt.

May compared

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

AprilAprMayMayJuneJun
Score242826
Day10°14°17°
Night6°10°13°
Sea7°11°15°
Sun7 h8 h8 h
Rain days91011

More details for May

Daylight
16 h 4 min05:21 – 21:25
UV index
6 · highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or more
Wind
32 km/haverage daily peak
Cloud cover
58 %on average
Hot days
0 days30 °C or more
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC+2Europe/Berlin

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %85 %
  • Few rainy daysweight 20 %55 %

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
  • Windproof jacket

Westerland, Sylt in May: quick answers

Is Westerland, Sylt hot in May?

No. In May, Westerland, Sylt is cool: daytime highs average 14 °C and nights drop to about 10 °C.

Can you swim in Westerland, Sylt in May?

Only if you don't mind cold water: in May the sea averages just 11.3 °C. Comfortable swimming temperatures are not reached at any time of year.

Does it rain much in Westerland, Sylt in May?

Rain is frequent, with about 10 rainy days and 53 mm in total.

Westerland, Sylt 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)