Daily brief · Japan

Tokyo 2026-09-11

Verified against recorded weather

Weather-risk signals · signal engine (Open-Meteo)

A heavy rain day could hit

medium

A single day could bring around 20.4mm of rain on 2026-09-11 — close to the local heavy-rain reference for this time of year (around 29.8mm in a day). Construction, drainage, and outdoor events should review schedules.

outdoor events · drainage operators · agriculture

Water conditions are improving

strong

Around 302.9mm of rain has fallen over the past 14 days — above the 15.4mm typical for this period. A healthier water balance is restoring across this area.

hydro operators · agriculture · reservoir ops

Rainfall is trending above the usual

medium

Around 21.4mm of rain may fall in the next 48 hours — above the 1.8mm typical for this period. Field access, drying, and outdoor logistics may be affected.

farmers · tourism · logistics

What the day recorded · Open-Meteo daily archive

Rain 26 mmMax 20 °CMin 18.6 °CGusts 26.3 km/h
Water conditions are improving: recorded 26 mm vs a local baseline of 15.4 mm above the local baseline
Rainfall is trending above the usual: recorded 26 mm vs a local baseline of 1.8 mm above the local baseline

Directional single-day check: recorded daily values compared against the historical baseline each signal was measured from. Signals cover multi-day windows, so this is context, not a forecast grade.

What people were seeing · community field reports

No field observations were posted for this place on 2026-09-11.