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High Severity Rain Forecast Issued for Saitama
Saitama is facing a high-severity rain event with a forecasted precipitation of 154.5 mm starting on September 21, 2026. This exceeds the local threshold of 30 mm.
An automatic weather alert has been issued for Saitama, Japan, based on forecast data from wweather1.com. The alert indicates significant rainfall expected in the area.
According to the automated meteorological data, the forecasted precipitation level has reached 154.5 mm. This figure substantially exceeds the established warning threshold of 30 mm for the region.
The weather event is projected to begin on September 21, 2026. Residents and local authorities are advised to monitor ongoing weather conditions as the system develops.
Why it is dangerous and what to do
⚠️ Safety
• Monitor local weather updates and official advisories.
• Avoid unnecessary travel in heavy rain conditions.
• Ensure drainage systems around properties are clear.
📊 The numbers, from wweather1 data
Saitama: now +21°, Drizzle.
The record for this date is +31° (2004).
Three-day forecast: 20 September: +23°/+22° · 21 September: +26°/+21° · 22 September: +30°/+23°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates. 🌍 Weather in nearby cities
Tokyo
now
☁️
+21°
Yokohama
now
⛅
+22°
Osaka
now
⛅
+25°
Nagoya
now
🌦️
+23°
Kawasaki
now
⛅
+22°
Kobe
now
⛅
+24°
📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.