Westerland, Sylt weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Poor
Best time to visit: April – August
What is the weather like in Westerland, Sylt in August?
In August, Westerland, Sylt is mild: daytime highs average 19 °C, and nights cool down to about 16 °C. The sea averages 18.6 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. It rains often – on about 14 days, adding up to 99 mm. It is often windy, with gusts of around 31 km/h. All in all, August is not an ideal month for a holiday in Westerland, Sylt.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 26 | 28 | 16 |
| Day | 19° | 19° | 17° |
| Night | 15° | 16° | 14° |
| Sea | 18° | 19° | 17° |
| Sun | 8 h | 8 h | 6 h |
| Rain days | 14 | 14 | 13 |
More details for August
- Daylight
- 15 h 3 min06:00 – 21:03
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or more
- Wind
- 31 km/haverage daily peak
- Cloud cover
- 59 %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 %3 %
- Seaweight 25 %23 %
- Sunshineweight 20 %78 %
- Few rainy daysweight 20 %28 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
- Windproof jacket
Westerland, Sylt in August: quick answers
Is Westerland, Sylt hot in August?
No. In August, Westerland, Sylt is mild: daytime highs average 19 °C and nights drop to about 16 °C.
Can you swim in Westerland, Sylt in August?
Only if you don't mind cold water: in August the sea averages just 18.6 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Westerland, Sylt in August?
It rains often – on about 14 days, adding up to 99 mm.
Westerland, Sylt month by month
The whole year in Westerland, SyltAll destinations: GermanyWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)