London’s weather outlook is dominated by a run of warm, largely sunny conditions in late September. Multiple forecasts indicate that temperatures reach at least 22C across the period, with daily highs expected to stay at or above that level from Sunday, September 20 through Tuesday, September 29.
The coverage across outlets is aligned on the overall pattern: a sustained stretch of above-average warmth in London during that window. While both reports emphasize the same timing and temperature threshold, they present it in promotional terms—describing the spell as “glorious sunshine”—without adding further detail on precipitation chances, wind, or specific day-by-day variations beyond the headline temperature expectation.
