August weather forecastHarefield, United Kingdom
August
Weather in August
August, the last month of the summer in Harefield, is another pleasant month, with an average temperature fluctuating between 21.6°C (70.9°F) and 13.6°C (56.5°F).Temperature
The advent of August brings an average high-temperature of a still agreeable 21.6°C (70.9°F), almost identical to the preceding month. During August, Harefield experiences a consistent low-temperature average of 13.6°C (56.5°F).Humidity
The least humid month is August, with an average relative humidity of 74%.Rainfall
In Harefield, during August, the rain falls for 12.2 days and regularly aggregates up to 21mm (0.83") of precipitation. In Harefield, during the entire year, the rain falls for 132.4 days and collects up to 214mm (8.43") of precipitation.Snowfall
In Harefield, snow does not fall in April through October.Daylight
The average length of the day in August is 14h and 34min.On the first day of the month, sunrise is at 5:26 am and sunset at 8:50 pm. On the last day of August, sunrise is at 6:13 am and sunset at 7:50 pm BST.
Sunshine
The months with the most sunshine are July and August, with an average of 8h of sunshine.UV index
The average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 4 during August translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Harefield, United Kingdom
- Average high temperature in August: 21.6°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in August: 13.6°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in August
Harefield, United Kingdom
- Average pressure in August: 1014.8mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in August
Harefield, United Kingdom
- Average wind speed in August: 12.9km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in August
Harefield, United Kingdom
- Average humidity in August: 74%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall in August
Harefield, United Kingdom
- Average rainfall in August: 21mm
The wettest month (with the highest rainfall) is December (25mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in August
Harefield, United Kingdom
- Average rainfall days in August: 12.2 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is September (8.9 days).
Average snowfall in August
Harefield, United Kingdom
- Average snowfall in August: 0mm
The month with the highest snowfall is December (10mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in August
Harefield, United Kingdom
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.8 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
Harefield, United Kingdom
- Average daylight in August: 14h and 36min
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: 8h and 0min
The months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in August
Harefield, United Kingdom
- Average sunshine days in August: 15.2 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is July (14 days).
Average UV index in August
Harefield, United Kingdom
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Harefield, United Kingdom
- Average cloud cover in August: 50
The months with the most cloud cover are February and November (Cloud cover 60).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in August
Harefield, United Kingdom
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
