Light rain and a warm 22°C for Richmond this Sunday
13 September 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
After yesterday's fine September sunshine, today brings a change of pace. The Met Office is forecasting light rain for Richmond on Sunday 13 September, with a decent chance — around 71% — that you'll want a jacket or umbrella if you're heading out.
Temperatures remain mild despite the grey skies, with a high of 22°C and an overnight low of 18°C, so it's far from unpleasant. The UV index sits at 4, which is still moderate enough to be worth noting for anyone spending extended time outdoors. The forecast does flag the possibility of heavier rain at points during the day, so it's worth checking conditions before setting out. Met Office forecast for Richmond, Sunday 13 September
If outdoor plans need rethinking, it's worth remembering that Open House Festival venues across the borough are open this weekend — many of them are indoors and free to visit, making today a good opportunity to explore some of Richmond's most interesting buildings whatever the weather. Details were published earlier this week on the Boroughly site.
The mild temperatures mean the rain shouldn't dampen any Sunday routines too much — Sunday markets, riverside walks and café stops are all still very much on, though waterproofs are advised.