INT.05 · City index / GB
London wash index
London’s drizzle economy punishes optimistic washing — rain arrives in short, frequent instalments rather than big storms. The index earns its keep here by spotting the 2–3 day dry gaps between Atlantic fronts.
RAIN /// FREQUENT, IN INSTALMENTSDRY GAPS /// 2-3 DAYS, HUNT THEMROAD SALT /// RARE
01
The readout
Live · scored 0–100
02
Wash windows
Best 2-hour slots · daylight-aware
03
Next 48 hours
Hour · index · rain % · temp
Wash · 70+
Borderline · 45–69
Wait · under 45
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