Sunny and 29°C in Barnes today — cooler than recent days but still very warm
12 July 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
After a run of extreme heat days that pushed temperatures into the low-to-mid 30s, today offers a slight respite — but it remains firmly summer. The Met Office is forecasting sunny skies and a high of 29°C for Barnes on 12 July, with a low of 16°C overnight. The chance of rain sits at just 8%, and the UV index is a very high 9.
With UV at that level, sun protection remains important even if the temperature feels a touch lower than last week's peaks. Sunscreen of at least SPF 30, a hat and sunglasses are advisable for anyone spending time outdoors, particularly between 11am and 3pm when UV radiation is at its strongest.
Barnes Green, the riverside path and Leg o' Mutton Nature Reserve will all be pleasant spots today. The Thames towpath between Barnes and Chiswick tends to catch a breeze off the water, making it a good option for a lunchtime walk.
Stay hydrated and keep an eye on young children and elderly neighbours, who are more vulnerable during prolonged warm spells. The warm weather looks set to continue into the coming days.