Monthly climate guide
Westerland weather in September
Expect mild weather in Westerland in September: afternoons reach about 17°C (62°F), while nights drop to around 15°C (59°F). Around 91 mm of rain falls over the month (wet), and skies are often cloudy. Daytime highs are 2°C cooler than August and 4°C warmer than October.
What stands out in September
- Just 190 km apart, but Westerland runs about 2°C cooler than Hamburg this month.
- Only 2 months are warmer in Westerland than September.
- There's little difference between day and night (around 2°C).
- It cools down fast from here: October is about 4°C cooler.
Avg high
17°C
62°F
Avg low
15°C
59°F
Rainfall
91 mm
wet
Humidity
81%
relative
Sky
73%
cloud · often cloudy
Westerland weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 5°C / 40°F | 3°C / 37°F | 84 mm | 88% | 86% |
| February | 4°C / 39°F | 2°C / 36°F | 65 mm | 88% | 84% |
| March | 5°C / 41°F | 3°C / 38°F | 54 mm | 89% | 76% |
| April | 9°C / 47°F | 6°C / 43°F | 43 mm | 86% | 66% |
| May | 13°C / 55°F | 10°C / 50°F | 49 mm | 84% | 67% |
| June | 16°C / 60°F | 14°C / 56°F | 75 mm | 84% | 71% |
| July | 18°C / 64°F | 16°C / 60°F | 72 mm | 83% | 68% |
| August | 19°C / 66°F | 17°C / 62°F | 90 mm | 81% | 69% |
| September | 17°C / 62°F | 15°C / 59°F | 91 mm | 81% | 73% |
| October | 13°C / 56°F | 11°C / 53°F | 91 mm | 84% | 79% |
| November | 9°C / 49°F | 8°C / 46°F | 79 mm | 86% | 83% |
| December | 7°C / 45°F | 5°C / 41°F | 102 mm | 88% | 89% |
What to pack for September
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is September a good time to visit Westerland?
Compare the months in the chart above to find your ideal window.
Best time to visit Westerland →Other Germany cities in September
Cite or embed this data
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Westerland weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/germany/westerland/september
<a href="https://weathercompare.eu/weather/germany/westerland/september">Westerland weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/germany/westerland" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Westerland weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/germany/westerland/september">Westerland weather in September</a> – WeatherCompare</p>
Westerland in September: quick answers
Is September a good time to visit Westerland?
September is one of the wetter months in Westerland, with about 91 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Westerland in September?
Average highs are about 17°C (62°F) and average lows about 15°C (59°F), based on 10 years of daily data.
Does it rain a lot in Westerland in September?
Westerland typically gets around 91 mm of rain in September — wet.
Figures are long-term averages for the area around Westerland (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.