Daily brief · Japan
Record from Aug 21, 2026. Back to current conditions

Tokyo Aug 21, 2026

Review recorded on Aug 30, 2026, 6:40 PM UTC.

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

Water conditions are improving

strong

Around 187.4mm of rain has fallen over the past 14 days — above the 10mm typical for this period. A healthier water balance is restoring across this area.

Reading evidence

Valid until Aug 26, 2026, 6:02 PM UTC.

Source: Open-Meteo.

Samples: 137.

hydro operators · agriculture · reservoir ops

A heavy rain day could hit

low

A single day could bring around 9.6mm of rain on 2026-08-27 — close to the local heavy-rain reference for this time of year (around 23.8mm in a day). Construction, drainage, and outdoor events should review schedules.

Reading evidence

Valid until Aug 26, 2026, 12:02 PM UTC.

Source: Open-Meteo.

Samples: 150.

outdoor events · drainage operators · agriculture

Recorded daily weather · Open-Meteo

Rain 9.4 mmMax 29.6 °CMin 23.9 °CGusts 26.3 km/h

Comparison unavailable for this edition.

What people were seeing · community field reports

No field observations were posted for this place on Aug 21, 2026.