Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Current UK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
A weather bar is a threshold strip fitted at the bottom of an external door to block draughts, rain and debris. Given the live forecast above for Qionghai – where tropical downpours are common – the principle of keeping moisture out applies equally to a wet UK winter.
What is a weather bar and why do you need one?
A weather bar (also called a door weather bar or threshold seal) creates a snug seal between the door bottom and the floor. It is typically made from aluminium, wood or plastic and often includes a rubber or brush insert. In the UK, fitting a weather bar to an external door is one of the cheapest ways to cut heat loss, reduce draughts and stop rainwater from seeping under the door. Many draught-proofing guides recommend them for both energy savings and comfort.
Which weather bar should you choose?
For most UK homes, a weather bar wood option suits traditional doors, while aluminium models are durable and low-maintenance. If you are buying from a retailer, check stock at weather bar B&Q, weather bar Screwfix or weather bar Toolstation. A wooden weather bar Screwfix listing, for example, often provides a painted finish that matches the door. For an external door that sees heavy rain, a door weather bar Screwfix product with a rubber seal is a solid choice. Measure the door width and the gap beneath it before purchasing.
Do I need a weather bar for an external door?
Yes, if there is a visible gap under the door. Even a 5 mm gap can let in draughts, rain and insects. A weather bar seals that gap and can reduce heating bills by up to £30 a year according to energy-saving advice.
Can I fit a weather bar myself?
Yes. Most weather bars come with screws and instructions. Measure the door width, cut the bar to length with a hacksaw if needed, then screw it to the door bottom. Ensure the seal contacts the floor lightly when the door is closed.
Where can I buy a weather bar in the UK?
Major hardware retailers stock them: B&Q, Screwfix, Toolstation and online. Search for weather bar for external door at any of these. Choose the material and length that match your door and budget.
For current conditions across the UK, see the UK weather hub. Planning a trip? Check the 10‑day weather forecast before you go.