August weather forecast
Castlewellan, United Kingdom

August

Weather in August

August, the last month of the summer in Castlewellan, is another comfortable month, with temperature in the range of an average high of 16.6°C (61.9°F) and an average low of 12.1°C (53.8°F).

Temperature

During July and August, Castlewellan registers its highest temperatures, averaging a high of 16.6°C (61.9°F).

Humidity

August is the most humid month in Castlewellan, with an average relative humidity of 87%.

Rainfall

In Castlewellan, in August, it is raining for 18.3 days, with typically 59mm (2.32") of accumulated precipitation. In Castlewellan, during the entire year, the rain falls for 181.5 days and collects up to 542mm (21.34") of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Castlewellan, United Kingdom, the average length of the day in August is 14h and 50min.
On the first day of the month, sunrise is at 5:37 am and sunset at 9:22 pm. On the last day of August, in Castlewellan, sunrise is at 6:30 am and sunset at 8:16 pm BST.

Sunshine

In August, the average sunshine in Castlewellan is 7h.

UV index

June, August and September, with an average maximum UV index of 4, are months with the highest UV index in Castlewellan. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 4 during August translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

What month is the hottest in Castlewellan?
July and August, with an average high-temperature of 16.6°C (61.9°F), are marked as the warmest months in Castlewellan, United Kingdom.
What are August temperatures in Castlewellan?
The average high-temperature and low-temperature in Castlewellan during August are 16.6°C (61.9°F) and 12.1°C (53.8°F) respectively.
What is the most humid month in Castlewellan?
With an average relative humidity of 87%, August is the most humid month in Castlewellan.
What is the average humidity in August in Castlewellan?
The average relative humidity in August in Castlewellan, United Kingdom, is 87%.
How many days does it rain in August in Castlewellan?
In Castlewellan, United Kingdom, during August, the rain falls for 18.3 days and regularly aggregates up to 59mm (2.32") of precipitation.
When it does not snow in Castlewellan?
April through October are months without snowfall.
How many hours of daylight does Castlewellan have in August?
In August, the average day length is 14h and 50min.
When is the sunrise / sunset in August in Castlewellan?
In August, on the first day of the month, sunrise is at 5:37 am and sunset at 9:22 pm. On the last day of the month, in Castlewellan, sunrise is at 6:30 am and sunset at 8:16 pm BST.
How many hours of sunshine does Castlewellan have in August?
The average sunshine duration in August in Castlewellan is 7h.
What are the months with the highest UV index in Castlewellan?
June, August and September, with an average maximum UV index of 4, are months with the highest UV index in Castlewellan.
What is the UV index reading in August in Castlewellan?
In August, the average daily maximum UV index in Castlewellan, United Kingdom, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Castlewellan, United Kingdom
  • Average high temperature in August: 16.6°C

The warmest months (with the highest average high temperature) are July and August (16.6°C).
The month with the lowest average high temperature is February (7.1°C).

  • Average low temperature in August: 12.1°C

The months with the highest average low temperature are July and August (12.1°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).

Average pressure in August
Castlewellan, United Kingdom
  • Average pressure in August: 1012.2mbar

The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.6mbar).

Average wind speed in August
Castlewellan, United Kingdom
  • Average wind speed in August: 17km/h

The windiest month (with the highest average wind speed) is December (24.4km/h).
The calmest month (with the lowest average wind speed) is July (15km/h).

Average humidity in August
Castlewellan, United Kingdom
  • Average humidity in August: 87%

The month with the highest relative humidity is August (87%).
The months with the lowest relative humidity are March, April and May (83%).

Average rainfall in August
Castlewellan, United Kingdom
  • Average rainfall in August: 59mm

The wettest month (with the highest rainfall) is November (68mm).
The driest month (with the least rainfall) is May (32mm).

Average rainfall days in August
Castlewellan, United Kingdom
  • Average rainfall days in August: 18.3 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is September (11.5 days).

Average snowfall in August
Castlewellan, United Kingdom
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in August
Castlewellan, United Kingdom
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Castlewellan, United Kingdom
  • Average daylight in August: 14h and 5min

The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).

  • Average sunshine in August: 7h and 0min

The month with the most sunshine is June (Average sunshine: 7h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).

Average sunshine days in August
Castlewellan, United Kingdom
  • Average sunshine days in August: 10.2 days

The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is July (9.2 days).

Average UV index in August
Castlewellan, United Kingdom
  • Average UV index in August: 4

The months with the highest UV index are June, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Castlewellan, United Kingdom
  • Average cloud cover in August: 55

The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 51).

Average visibility in August
Castlewellan, United Kingdom
  • Average visibility in August: 9km

The months with the highest visibility are February, March, September, October, November and December (10km).
The months with the lowest visibility are January, April, May, June, July and August (9km).

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