August weather forecast
Les Quartiers, Guernsey

August

Weather in August

August mirrors many of the climatic features of July in Les Quartiers, Guernsey. The consistency in temperature from the previous month is marked, with the highest average temperature of the year, 17.8°C (64°F), making its presence felt. The incoming month of September introduces a potential decline in temperatures, marking the advent of fall. More rainfall is expected, increasing to approximately 41mm (1.61") which is dispersed across 14 days. The daylight hours begin to shorten, indicating an ongoing transition into the next season.

Temperature

August is the warmest month, exhibiting average temperatures of 17.8°C (64°F) at the peak and 15.8°C (60.4°F) at the base.

Humidity

In Les Quartiers, the average relative humidity in August is 82%.

Rainfall

In Les Quartiers, during August, the rain falls for 14 days and regularly aggregates up to 41mm (1.61") of precipitation. Throughout the year, there are 196.3 rainfall days, and 557mm (21.93") of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

The average length of the day in August is 14h and 22min.
On the first day of August, sunrise is at 05:42 and sunset at 20:50. On the last day of the month, sunrise is at 06:25 and sunset at 19:55 BST.

Sunshine

In August, the average sunshine is 9.2h.

UV index

The months with the highest UV index are July through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the maximum UV index of 5 suggests this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.

Frequently asked questions

What month is the hottest?
August stands out as Les Quartiers's warmest month, with temperatures ranging between an average high of 17.8°C (64°F) and a low of 15.8°C (60.4°F).
What are August temperatures?
During August, Les Quartiers experiences an average high-temperature of 17.8°C (64°F) and a low-temperature of 15.8°C (60.4°F).
What is the average humidity in August?
In Les Quartiers, the average relative humidity in August is 82%.
How many days does it rain in August?
In August, the rain falls for 14 days. Throughout August, 41mm (1.61") of precipitation is accumulated.
When it does not snow?
In Les Quartiers, Guernsey, snow does not fall in February through December.
How many hours of daylight does Les Quartiers have in August?
In Les Quartiers, the average day length in August is 14h and 22min.
What time are sunrise and sunset in August?
In August, on the first day of the month, sunrise is at 05:42 and sunset at 20:50. On the last day of the month, sunrise is at 06:25 and sunset at 19:55 BST.
How many hours of sunshine does Les Quartiers have in August?
In Les Quartiers, the average sunshine duration in August is 9.2h.
What are the months with the highest UV index?
July through September, with an average maximum UV index of 5, are months with the highest UV index.
What is the UV index intensity in August?
The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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 - Les Quartiers, Guernsey
Average temperature in August
Les Quartiers, Guernsey
  • Average high temperature in August: 17.8°C

The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).

  • Average low temperature in August: 15.8°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).

Average pressure in August - Les Quartiers, Guernsey
Average pressure in August
Les Quartiers, Guernsey
  • Average pressure in August: 1016.4mbar

The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).

Average wind speed in August - Les Quartiers, Guernsey
Average wind speed in August
Les Quartiers, Guernsey
  • Average wind speed in August: 22.8km/h

The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).

Average humidity in August - Les Quartiers, Guernsey
Average humidity in August
Les Quartiers, Guernsey
  • Average humidity in August: 82%

The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).

Average rainfall in August - Les Quartiers, Guernsey
Average rainfall in August
Les Quartiers, Guernsey
  • Average rainfall in August: 41mm

The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).

Average rainfall days in August - Les Quartiers, Guernsey
Average rainfall days in August
Les Quartiers, Guernsey
  • Average rainfall days in August: 14 days

The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).

Average snowfall in August - Les Quartiers, Guernsey
Average snowfall in August
Les Quartiers, Guernsey
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in August - Les Quartiers, Guernsey
Average snowfall days in August
Les Quartiers, Guernsey
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in August / Average sunshine in August - Les Quartiers, Guernsey
Average daylight in August /
Average sunshine in August
Les Quartiers, Guernsey
  • Average daylight in August: 14h and 2min

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

  • Average sunshine in August: 9h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).

Average sunshine days in August - Les Quartiers, Guernsey
Average sunshine days in August
Les Quartiers, Guernsey
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).

Average UV index in August - Les Quartiers, Guernsey
Average UV index in August
Les Quartiers, Guernsey
  • Average UV index in August: 5

The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).

Average cloud cover in August - Les Quartiers, Guernsey
Average cloud cover in August
Les Quartiers, Guernsey
  • Average cloud cover in August: 40

The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in August - Les Quartiers, Guernsey
Average visibility in August
Les Quartiers, Guernsey
  • Average visibility in August: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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