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Heavy Rainfall Recorded in Yokohama
Yokohama is experiencing high severity rainfall, with precipitation reaching 103.1 mm.
An automatic alert was issued by wweather1.com forecast data for Yokohama, Japan, on September 20, 2026.
Recorded precipitation levels reached 103.1 mm, crossing the established threshold of 30 mm for this metric.
The weather event began on September 20, 2026, with conditions continuing to be monitored through meteorological data systems.
Why it is dangerous and what to do
⚠️ Safety
• Stay informed by monitoring local weather updates and official advisories.
• Avoid unnecessary travel in heavily flooded areas.
• Ensure drainage around your property is clear to prevent water accumulation.
📊 The numbers, from wweather1 data
Yokohama: now +22°, Rain.
That is 2° below the September climate norm.
The record for this date is +35° (2024).
Three-day forecast: 19 September: +22°/+20° · 20 September: +23°/+22° · 21 September: +26°/+21°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates. 🌍 Weather in nearby cities
Tokyo
now
🌦️
+22°
Yokohama
now
🌧️
+22°
Osaka
now
🌙
+23°
Nagoya
now
☁️
+23°
Kawasaki
now
🌧️
+22°
Kobe
now
🌙
+25°
📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.