August weather forecast
Grandes Capelles, Guernsey

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Weather in August

August in Grandes Capelles sees a continuation of warm summer weather. It is the month with the highest low temperature, averaging at 15.8°C (60.4°F). The relief of cool winds is optimum as it ensures a balance between warmth and comfort. Despite the dominance of the sun, rainfall tends to slightly increase compared to July, bringing occasional downpours. Still, most days are sun-drenched and inviting for outdoor enthusiasts.

Temperature

Grandes Capelles notes the warmest temperatures in August, with a high average of 17.8°C (64°F) and a low of 15.8°C (60.4°F).

Humidity

In Grandes Capelles, the average relative humidity in August is 82%.

Rainfall

In Grandes Capelles, 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

In Grandes Capelles, snow does not fall in February through December.

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 Grandes Capelles, the average sunshine in August is 9.2h.

UV index

July through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 5 in August transforms into this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

What month is the hottest in Grandes Capelles?

Grandes Capelles, Guernsey, records the warmest temperatures in August, averaging a high of 17.8°C (64°F) and a low of 15.8°C (60.4°F).

What are the temperatures in Grandes Capelles in August?

The high-temperature, in August, in Grandes Capelles, records 17.8°C (64°F), while the low-temperature is 15.8°C (60.4°F).

What is the average humidity in August in Grandes Capelles?

In Grandes Capelles, Guernsey, the average relative humidity in August is 82%.

How much does it rain in Grandes Capelles 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 Grandes Capelles?

February through December are months without snowfall in Grandes Capelles, Guernsey.

What is the average length of the day in August in Grandes Capelles?

In August, the average day length in Grandes Capelles is 14h and 22min.

What time are sunrise and sunset in August in Grandes Capelles?

On the first day of August in Grandes Capelles, Guernsey, 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 Grandes Capelles have in August?

In Grandes Capelles, the average sunshine duration in August is 9.2h.

What is the month with the highest UV index in Grandes Capelles?

July through September, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in August in Grandes Capelles?

In Grandes Capelles, Guernsey, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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 temperature in August
Grandes Capelles, Guernsey

Average temperature in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average pressure in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average wind speed in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average humidity in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average rainfall in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average rainfall days in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average snowfall in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average snowfall days in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average daylight in August / Average sunshine in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average sunshine days in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average UV index in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average cloud cover in August - Grandes Capelles, 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
Grandes Capelles, Guernsey

Average visibility in August - Grandes Capelles, 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).

Grandes Capelles, Guernsey

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