Daily brief · Japan
Record from Oct 20, 2026. Back to current conditions

Tokyo Oct 20, 2026

Review recorded on Oct 21, 2026, 6:40 AM UTC.

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

A heavy rain day could hit

medium

A single day could bring around 31mm of rain on 2026-10-24 — close to the local heavy-rain reference for this time of year (around 31.1mm in a day). This comparison adds historical context; it does not assess impacts on a specific activity.

Reading evidence

Reading calculated Oct 20, 2026, 6:00 PM UTC.

Valid until Oct 25, 2026, 12:01 AM UTC.

Source: Open-Meteo.

Forecast period: 2026-10-20 to 2026-10-26.

Forecast source: open-meteo.

Years with usable data: 10 of 10.

Historical dataset: era5.

Samples: 150.

Method: heavy-rain-percentile-max-v1-2026-09-22.

outdoor events · drainage operators · agriculture

A cold stretch is on the way

medium

6 days in a row could stay below 15°C, starting 2026-10-28. Longer than this region usually sees at this time of year. Crops in flowering, livestock, and rooftop venues may be exposed.

Reading evidence

Reading calculated Oct 20, 2026, 6:00 PM UTC.

Valid until Oct 23, 2026, 12:01 AM UTC.

Source: Open-Meteo.

crop growers · outdoor hospitality

Recorded daily weather · Open-Meteo

Rain 0.2 mmMax 24.8 °CMin 16.4 °CGusts 25.9 km/h

Comparison unavailable for this edition.

What people were seeing · community field reports

No field observations were posted for this place on Oct 20, 2026.