August weather forecast
Ystradgynlais, United Kingdom

August

Weather in August

The last month of the summer, August, is another comfortable month in Ystradgynlais, United Kingdom, with an average temperature ranging between min 12.9°C (55.2°F) and max 17.9°C (64.2°F).

Temperature

As August takes hold, the average high-temperature is a still enjoyable 17.9°C (64.2°F), nearly mirroring that of the previous month. August nighttime temperatures hover close to the daytime peak with an average of 12.9°C (55.2°F).

Humidity

In August, the average relative humidity is 85%.

Rainfall

In Ystradgynlais, in August, during 16 rainfall days, 53mm (2.09") of precipitation is typically accumulated. Throughout the year, in Ystradgynlais, there are 181.3 rainfall days, and 568mm (22.36") of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Ystradgynlais.

Daylight

In Ystradgynlais, the average length of the day in August is 14h and 35min.
On the first day of the month, sunrise is at 5:38 am and sunset at 9:03 pm. On the last day of August, sunrise is at 6:26 am and sunset at 8:03 pm BST.

Sunshine

The average sunshine in August in Ystradgynlais is 7.3h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 4 in August, converts into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

What is the usual temperature for Ystradgynlais in August?
An average high-temperature, in August, in Ystradgynlais, is 17.9°C (64.2°F) and the average low-temperature is 12.9°C (55.2°F).
What is the average humidity in August in Ystradgynlais?
In August, the average relative humidity is 85%.
How many days does it rain in August in Ystradgynlais?
In Ystradgynlais, in August, during 16 rainfall days, 53mm (2.09") of precipitation is typically accumulated.
When it does not snow in Ystradgynlais?
April through November are months without snowfall in Ystradgynlais, United Kingdom.
What is the average length of the day in August in Ystradgynlais?
In Ystradgynlais, United Kingdom, the average day length in August is 14h and 35min.
When are sunrise and sunset in August in Ystradgynlais?
On the first day of August in Ystradgynlais, sunrise is at 5:38 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:03 pm BST.
How many hours of sunshine does Ystradgynlais have in August?
In August, the average sunshine duration is 7.3h.
When is the highest UV index in Ystradgynlais?
May through September, with an average maximum UV index of 4, are months with the highest UV index.
What is the UV index reading in August in Ystradgynlais?
The average daily maximum UV index in August in Ystradgynlais, United Kingdom, is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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
Ystradgynlais, United Kingdom
  • Average high temperature in August: 17.9°C

The warmest month (with the highest average high temperature) is July (18.2°C).
The months with the lowest average high temperature are January and February (7.3°C).

  • Average low temperature in August: 12.9°C

The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is February (3.8°C).

Average pressure in August
Ystradgynlais, United Kingdom
  • Average pressure in August: 1014.5mbar

The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

Average wind speed in August
Ystradgynlais, United Kingdom
  • Average wind speed in August: 16.2km/h

The windiest month (with the highest average wind speed) is December (22.4km/h).
The calmest month (with the lowest average wind speed) is June (14.9km/h).

Average humidity in August
Ystradgynlais, United Kingdom
  • Average humidity in August: 85%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (81%).

Average rainfall in August
Ystradgynlais, United Kingdom
  • Average rainfall in August: 53mm

The wettest months (with the highest rainfall) are November and December (66mm).
The driest month (with the least rainfall) is May (31mm).

Average rainfall days in August
Ystradgynlais, United Kingdom
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (12.6 days).

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

The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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

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

Average daylight in August /
Average sunshine in August
Ystradgynlais, United Kingdom
  • Average daylight in August: 14h and 4min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in August: 7h and 2min

The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Ystradgynlais, United Kingdom
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is July (10.3 days).

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

The months with the highest UV index are May, June, July, 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
Ystradgynlais, United Kingdom
  • Average cloud cover in August: 54

The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 47).

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

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

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