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Today's weather in London - 20 August

By Mr.Data 20th Aug 2025

Here is London today's weather forecast provided by Mr Data
Here is London today's weather forecast provided by Mr Data

London Weather Forecast for Wednesday

Today in London, residents can expect a typically British day with overcast skies. Despite the cloud cover, the weather remains relatively mild for this time of year, with temperatures fluctuating between a minimum of 15°C and a maximum of 21°C. It will be a dry day with no expected precipitation, making it ideal for those who enjoy outdoor activities without the inconvenience of rain. However, the humidity will stand at 63%, which may contribute to a slightly muggy feeling as the day progresses. A moderate breeze with winds reaching up to 17mph will add a touch of coolness, especially in more open areas.

Detailed Weather Conditions for Wednesday

As dawn breaks over London, the city will awaken under a blanket of clouds that extends across the skyline. This ubiquitous cloud cover will persist from morning until evening, providing a typically autumnal atmosphere. Throughout the day, temperatures will peak at a comfortable 21°C, offering a mild and pleasant environment that will not climb too high, providing relief for those wary of excessive heat. Despite the absence of sunshine, the dry conditions will prevail, with no chance of precipitation forecast for the day. The humidity level at 63% might make the atmosphere feel somewhat heavy, particularly in confined spaces or during periods of physical exertion.

The wind will blow steadily at a speed of up to 17mph, coming from the west and providing a consistent breeze that will help counterbalance the high humidity. This wind speed is typical for London and should not cause any disruptions to daily activities or travel plans.

Commuting Advice

Commuters heading to work or school should find their journeys relatively smooth today. With no rain expected, roads and pavements will remain dry, reducing the risk of delays related to wet weather conditions. Cyclists should be prepared for the moderate wind, which may present some resistance, but otherwise, conditions are quite favourable for travel on two wheels. Public transport is anticipated to operate without weather-related disruptions.

Advice for the Day

Given the overcast conditions, it's a good idea to dress in layers today. This will allow you to adjust your clothing according to the changing temperatures throughout the day. While there's no need for an umbrella, packing a light jacket could prove useful to fend off the coolness brought by the breeze. Anecdotally, it's an excellent day for a brisk walk or an outdoor gathering, as long as you plan for the temperate and cloudy conditions. Enjoy the quintessentially London weather experience!

     

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