Home → Weather news → Heavy Rain Forecast for Beppu on September 18, 2026
Heavy Rain Forecast for Beppu on September 18, 2026
An automatic weather alert indicates that Beppu, Japan is forecasted to receive 46.3 mm of precipitation on September 18, 2026.
According to automated forecast data from wweather1.com, a rain event categorized under high severity is scheduled to begin in Beppu, Japan, starting at 00:00 UTC on September 18, 2026.
The expected rainfall for the day is measured at 46.3 mm. This figure surpasses the standard alert threshold set at 30 mm for this metric.
The system alert was issued automatically by wweather1.com after internal forecast models confirmed that the forecasted precipitation value crossed the established threshold.
Why it is dangerous and what to do
⚠️ Safety
• Monitor local weather reports and official advisories for updates.
• Avoid traveling through low-lying areas or flooded roadways during heavy rainfall.
• Ensure household drainage paths and gutters are clear of debris.
📊 The numbers, from wweather1 data
Beppu: now +21°, Clear.
That is 1° above the October climate norm.
The record for this date is +29° (2025).
Three-day forecast: 13 October: +26°/+21° · 14 October: +23°/+18° · 15 October: +21°/+18°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates. 🌍 Weather in nearby cities
Seoul
now
☀️
+10°
Tokyo
now
☀️
+22°
Yokohama
now
⛅
+23°
Busan
now
☀️
+15°
Incheon
now
☀️
+11°
Osaka
now
🌦️
+22°
📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.