London
United Kingdom
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
London, United Kingdom

The large Thames river in London overlooking the Westminster Palace and the Big Ben clock tower in London, United Kingdom, on a cloudy evening after sunset
The large Thames river in London overlooking the Westminster Palace and the Big Ben clock tower in London, United Kingdom, on a cloudy evening after sunset
August is warm with mostly bright skies in London as the rain Gods sprinkle the usual quota of drizzle. The rarely heavy rainfall measures 48.3mm (1.9").
The average temperatures linger in the 13.9°C (57°F) to 22.8°C (73°F) zone with little variation every day.
Sunshine registers approximately 204 hours in August with many sunny periods. The sunset is beautiful to watch from many places: over the river or the hills. Visitors from the temperate zones meander along in light summer clothes as they find the heat and rain moderate at best.

What is the temperature in August in London?

The average high-temperature, in August, in London, is 23.2°C (73.8°F), while the average low-temperature is 13.7°C (56.7°F).

How many days does it rain in August in London?

In London, United Kingdom, in August, it is raining for 7.5 days, with typically 49.5mm (1.9") of accumulated precipitation.

What is the average length of the day in August in London?

In London, the average length of the day in August is 14.5h.

How many hours of sunshine does London have in August?

In London, United Kingdom, the average sunshine in August is 6.6h.

How high is the UV index in August in London?

In August, the average daily maximum UV index in London, United Kingdom, is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in August - London, United Kingdom
  • Average high temperature in August: 23.2°C

The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (8.1°C).

  • Average low temperature in August: 13.7°C

The month with the highest average low temperature is July (13.9°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).

Average rainfall in August - London, United Kingdom
  • Average rainfall in August: 49.5mm

The wettest month (with the highest rainfall) is October (68.5mm).
The driest month (with the lowest rainfall) is February (40.9mm).

Average rainfall days in August - London, United Kingdom
  • Average rainfall days in August: 7.5 days

The month with the highest number of rainy days is January (11.1 days).
The month with the lowest number of rainy days is August (7.5 days).

Average daylight in August / Average sunshine in August - London, United Kingdom
  • Average daylight in August: 14.5h

The month with the longest days is June (Average daylight: 16.5h).
The month with shortest days is December (Average daylight: 7.9h).

  • Average sunshine in August: 6.6h

Months with most sunshine are June and July (Average sunshine: 6.8h).
The month with least sunshine is December (Average sunshine: 1.7h).

Average UV index in August - London, United Kingdom
  • Average UV index in August: 5

Months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 0).