August weather forecastMostyn, United Kingdom

August

Weather in August

August, the last month of the summer in Mostyn, is another comfortable month, with an average temperature varying between 18.1°C (64.6°F) and 13.2°C (55.8°F).

Temperature

August's average high-temperature stands at a still comfortable 18.1°C (64.6°F), showing little deviation from July's 18.3°C (64.9°F). An average low-temperature of 13.2°C (55.8°F) characterizes Mostyn's August nights.

Humidity

In Mostyn, United Kingdom, the average relative humidity in August is 81%.

Rainfall

The month with the most rainfall in Mostyn is August, when the rain falls for 22.7 days and typically aggregates up to 74mm (2.91") of precipitation.

Snowfall

In Mostyn, snow does not fall in May through November.

Sea temperature

The month with the warmest seawater in Mostyn is August, with an average sea temperature of 16.7°C (62.1°F).
Note: For the majority, swimming in water with a temperature of 16.7°C (62.1°F) is not enjoyable. The difficulty in managing breathing rises as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in August is 14h and 44min.
On the first day of August in Mostyn, sunrise is at 5:30 am and sunset at 9:08 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:04 pm BST.

Sunshine

The average sunshine in August in Mostyn is 7.6h.

UV index

May through September, with an average maximum UV index of 4, are months with the highest UV index in Mostyn, United Kingdom. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 4 in August suggests the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

The average high-temperature, in August, in Mostyn, is 18.1°C (64.6°F), while the average low-temperature is 13.2°C (55.8°F).

In August, the average relative humidity is 81%.

The month with the most rainfall in Mostyn, United Kingdom, is August, when the rain falls for 22.7 days and typically aggregates up to 74mm (2.91") of precipitation.

In Mostyn, in August, it is raining for 22.7 days, with typically 74mm (2.91") of accumulated precipitation.

In Mostyn, snow does not fall in May through November.

The month with the warmest seawater in Mostyn is August, with an average sea temperature of 16.7°C (62.1°F).

In August, the average sea temperature in Mostyn is 16.7°C (62.1°F). For swimming, a surface water temperature of 16.7°C (62.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

In August, the average day length in Mostyn, United Kingdom, is 14h and 44min.

In August, on the first day of the month, sunrise is at 5:30 am and sunset at 9:08 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:04 pm BST.

In August, the average sunshine duration is 7.6h.

The months with the highest UV index in Mostyn are May through September, with an average maximum UV index of 4.

The average daily maximum UV index in August in Mostyn, United Kingdom, is 4. A UV Index 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 sea temperature
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Mostyn, United Kingdom

  • Average high temperature in August: 18.1°C

The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (7°C).

  • Average low temperature in August: 13.2°C

The month with the highest average low temperature is August (13.2°C).
The coldest months (with the lowest average low temperature) are January and February (3.6°C).

Average pressure in August
Mostyn, 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 (1008.9mbar).

Average wind speed in August
Mostyn, United Kingdom

  • Average wind speed in August: 15.5km/h

The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.7km/h).

Average humidity in August
Mostyn, United Kingdom

  • Average humidity in August: 81%

The months with the highest relative humidity are January, November and December (84%).
The months with the lowest relative humidity are April and May (79%).

Average rainfall in August
Mostyn, United Kingdom

  • Average rainfall in August: 74mm

The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is April (35mm).

Average rainfall days in August
Mostyn, United Kingdom

  • Average rainfall days in August: 22.7 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (15.3 days).

Average snowfall in August
Mostyn, United Kingdom

  • Average snowfall in August: 0mm

The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).

Average snowfall days in August
Mostyn, 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 sea temperature in August
Mostyn, United Kingdom

  • Average sea temperature in August: 16.7°C

The best month for swimming (with the highest average sea temperature) is August (16.7°C).
The coldest months (with the lowest average sea temperature) are February and March (7.4°C).

Average daylight in August /
Average sunshine in August
Mostyn, 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 36min

The months with the most sunshine are April, May and July (Average sunshine: 7h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).

Average sunshine days in August
Mostyn, United Kingdom

  • Average sunshine days in August: 4.7 days

The month with the most sunshine days is March (11.8 days).
The month with the least sunshine days is August (4.7 days).

Average UV index in August
Mostyn, 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
Mostyn, United Kingdom

  • Average cloud cover in August: 52

The months with the most cloud cover are November and December (Cloud cover 60).
The months with the least cloud cover are April and May (Cloud cover 48).

Average visibility in August
Mostyn, 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).