ABOUT
What is the Washing Line Index?
The Washing Line Index helps you decide whether it’s worth putting your washing out — or keeping it in.
We combine key weather factors to give you a simple score and advice, so you can dry with confidence.
We consider
Temperature
Warmer air generally helps washing dry faster.
Rain chance
Both the risk and expected amount of rain feed into the score.
Wind speed
A useful breeze helps; excessive wind is penalised.
Humidity
Lower humidity gives moisture more room to evaporate from your clothes.
Made for the UK
Because let’s face it — our weather likes to keep us on our toes.