Sunny and warm in Chiswick today — 29°C with UV index 8
15 July 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
After several days of intense heat, Tuesday brings another bright and sunny day to Chiswick, though temperatures ease slightly to a high of 29°C — still very much summer at its best. The overnight low was a warm 18°C, and the Met Office forecast shows no chance of rain and a UV index of 8, rated as very high.
That UV level means unprotected skin can burn in as little as 15 to 20 minutes, so sunscreen, a hat and plenty of water are genuinely worth the effort today — particularly for children and anyone spending time outdoors at Chiswick House and Gardens, Strand-on-the-Green or along the riverfront.
The good news is that the riverside path from Chiswick Bridge towards Kew offers good shade in the afternoon, and the grounds at Chiswick House are free to enter. Temperatures are expected to remain comfortable into the evening, making it a pleasant night to sit outside.