August weather forecastTrefriw, United Kingdom
August
Weather in August
August, the last month of the summer in Trefriw, is another refreshing month, with an average temperature varying between 12.8°C (55°F) and 16.8°C (62.2°F).Temperature
As Trefriw transitions from July to August, the average high-temperatures adjust to a still refreshing 16.8°C (62.2°F), nearly the same as the previous 16.9°C (62.4°F). August's average low-temperature in Trefriw is a fresh 12.8°C (55°F), reflecting a minor difference from the day's peak temperatures.Humidity
January and August, with an average relative humidity of 85%, are the most humid months in Trefriw.Rainfall
In Trefriw, during August, the rain falls for 21.6 days and regularly aggregates up to 59mm (2.32") of precipitation. In Trefriw, during the entire year, the rain falls for 228.5 days and collects up to 604mm (23.78") of precipitation.Snowfall
May through October are months without snowfall in Trefriw.Daylight
In Trefriw, the average length of the day in August is 14h and 43min.On the first day of August, sunrise is at 5:33 am and sunset at 9:09 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:06 pm BST.
Sunshine
In Trefriw, the average sunshine in August is 7.3h.UV index
The months with the highest UV index in Trefriw are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 4 during August translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Trefriw, United Kingdom
- Average high temperature in August: 16.8°C
The warmest month (with the highest average high temperature) is July (16.9°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in August: 12.8°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).
Average pressure in August
Trefriw, United Kingdom
- Average pressure in August: 1013.2mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in August
Trefriw, United Kingdom
- Average wind speed in August: 16.7km/h
The windiest month (with the highest average wind speed) is December (23.8km/h).
The calmest month (with the lowest average wind speed) is June (14.4km/h).
Average humidity in August
Trefriw, United Kingdom
- Average humidity in August: 85%
The months with the highest relative humidity are January and August (85%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in August
Trefriw, 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 (31mm).
Average rainfall days in August
Trefriw, United Kingdom
- Average rainfall days in August: 21.6 days
The month with the highest number of rainy days is December (22.5 days).
The month with the least rainy days is February (15.8 days).
Average snowfall in August
Trefriw, United Kingdom
- Average snowfall in August: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in August
Trefriw, United Kingdom
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.3 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
Trefriw, United Kingdom
- Average daylight in August: 14h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in August: 7h and 18min
The months with the most sunshine are May and June (Average sunshine: 7h and 42min).
The month with the least sunshine is November (Average sunshine: 3h and 36min).
Average sunshine days in August
Trefriw, United Kingdom
- Average sunshine days in August: 6.3 days
The months with the most sunshine days are March and May (11 days).
The month with the least sunshine days is November (5.2 days).
Average UV index in August
Trefriw, 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, March, November and December (UV index 2).
Average cloud cover in August
Trefriw, United Kingdom
- Average cloud cover in August: 55
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is May (Cloud cover 49).
Average visibility in August
Trefriw, United Kingdom
- Average visibility in August: 9km
The months with the highest visibility are March, September and October (10km).
The months with the lowest visibility are January, February, April, May, June, July, August, November and December (9km).





