A proper late-summer Sunday: sunny skies and 25°C for Richmond today
6 September 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
After a fine spell that has gradually been building, today looks like the pick of the run. The Met Office is forecasting sunny conditions across Richmond for Sunday 6 September, with a high of 25°C and an overnight low of 17°C — warm enough to keep terraces and parks busy well into the evening.
The chance of rain is just 6%, so umbrellas can stay at home. The UV index is forecast at 5, which sits in the moderate-to-high range, so sun cream is worth applying if you're planning a long stretch outdoors — particularly if you're heading to the river, where reflected light can catch people off guard.
It's a good day to make use of Richmond Park, the Thames towpath, or the open spaces around Twickenham and Kew, all of which tend to fill up quickly on days like this. If you're heading out for brunch or a long lunch, booking ahead at popular spots would be wise — fine Sundays in early September draw a crowd.
The Met Office forecast for Richmond gives full hourly detail if you want to plan around the best of the sunshine.