August weather forecast
Vianden, Luxembourg

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Weather in August

In contrast to July, the city of Vianden, Luxembourg, in August, starts to experience a slight dip in temperature as it gets ready to bid adieu to the summer season. The change is however marginal, keeping the climate for the most part warm, with carrying overs of the heat wave from July. Sunshine hours reduce slightly, a sign of the waning summer days. Rainfall increases slightly compared to July, and winds slightly pick up, signaling the approaching change in season. Despite these beginning shifts, August remains predominantly summery.

Temperature

During the warmest month in Vianden, August, temperatures average a high of 20.9°C (69.6°F) and a low of 11.1°C (52°F).

Humidity

In August, the average relative humidity is 81%.

Rainfall

In Vianden, in August, during 17.8 rainfall days, 58mm (2.28") of precipitation is typically accumulated. Throughout the year, there are 189.4 rainfall days, and 645mm (25.39") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 14h and 25min.
On the first day of the month, sunrise is at 06:05 and sunset at 21:17. On the last day of August, sunrise is at 06:49 and sunset at 20:21 CEST.

Sunshine

The average sunshine in August is 8.6h.

UV index

In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: During August, 4 as the daily maximum UV index converts into the following advice:
Heed the precautions - It is counselled to guard against solar damage. When the Sun is at its strongest around midday, find shade and limit exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

What is the hottest time of year in Vianden?

August is the warmest month of the year in Vianden, registering average temperatures as high as 20.9°C (69.6°F) and as low as 11.1°C (52°F).

What are the temperatures in Vianden in August?

In August, in Vianden, the average high-temperature is 20.9°C (69.6°F), and the average low-temperature is 11.1°C (52°F).

What is the average humidity in August in Vianden?

In Vianden, the average relative humidity in August is 81%.

How many days does it rain in August in Vianden?

In August, the rain falls for 17.8 days. Throughout August, 58mm (2.28") of precipitation is accumulated.

When it does not snow in Vianden?

In Vianden, snow does not fall in June through September.

What is the average length of the day in August in Vianden?

The average day length in August in Vianden, Luxembourg, is 14h and 25min.

When are sunrise and sunset in August in Vianden?

On the first day of August in Vianden, Luxembourg, sunrise is at 06:05 and sunset at 21:17. On the last day of the month, sunrise is at 06:49 and sunset at 20:21 CEST.

How many hours of sunshine does Vianden have in August?

In August, the average sunshine duration in Vianden, Luxembourg, is 8.6h.

What is the UV index reading in August in Vianden?

The average daily maximum UV index in August in Vianden is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Vianden, Luxembourg

Average temperature in August - Vianden, Luxembourg
  • Average high temperature in August: 20.9°C

The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (2.5°C).

  • Average low temperature in August: 11.1°C

The months with the highest average low temperature are July and August (11.1°C).
The coldest months (with the lowest average low temperature) are January and February (-1.8°C).

Average pressure in August
Vianden, Luxembourg

Average pressure in August - Vianden, Luxembourg
  • Average pressure in August: 1015.9mbar

The months with the highest atmospheric pressure are September and December (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.8mbar).

Average wind speed in August
Vianden, Luxembourg

Average wind speed in August - Vianden, Luxembourg
  • Average wind speed in August: 10km/h

The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).

Average humidity in August
Vianden, Luxembourg

Average humidity in August - Vianden, Luxembourg
  • Average humidity in August: 81%

The month with the highest relative humidity is December (93%).
The month with the lowest relative humidity is April (79%).

Average rainfall in August
Vianden, Luxembourg

Average rainfall in August - Vianden, Luxembourg
  • Average rainfall in August: 58mm

The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is April (37mm).

Average rainfall days in August
Vianden, Luxembourg

Average rainfall days in August - Vianden, Luxembourg
  • Average rainfall days in August: 17.8 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (11.1 days).

Average snowfall in August
Vianden, Luxembourg

Average snowfall in August - Vianden, Luxembourg
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (90mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in August
Vianden, Luxembourg

Average snowfall days in August - Vianden, Luxembourg
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Vianden, Luxembourg

Average daylight in August / Average sunshine in August - Vianden, Luxembourg
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in August: 8h and 4min

The month with the most sunshine is July (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).

Average sunshine days in August
Vianden, Luxembourg

Average sunshine days in August - Vianden, Luxembourg
  • Average sunshine days in August: 10.8 days

The month with the most sunshine days is September (13 days).
The month with the least sunshine days is June (7.2 days).

Average UV index in August
Vianden, Luxembourg

Average UV index in August - Vianden, Luxembourg
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in August
Vianden, Luxembourg

Average cloud cover in August - Vianden, Luxembourg
  • Average cloud cover in August: 44

The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 44).

Average visibility in August
Vianden, Luxembourg

Average visibility in August - Vianden, Luxembourg
  • Average visibility in August: 8km

The month with the highest visibility is April (9km).
The months with the lowest visibility are January, October, November and December (7km).

Vianden, Luxembourg

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