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High Rain Precipitation Forecast in San Salvador

September 20, 2026 · wweather1 editorial · 1 min read

San Salvador is facing a high-severity rain forecast with precipitation levels crossing the established threshold. Automatic monitoring data indicates significant rainfall expected for the area.

According to forecast data from wweather1.com, San Salvador has triggered an automatic alert for high precipitation. The forecasted rainfall value has reached 31.1 millimeters, exceeding the 30-millimeter threshold.

The weather event is tied to forecast data dated September 20, 2026. Monitoring systems recorded the onset of these conditions starting on September 20, 2026.

Local conditions reflect the automated alert status generated by the platform's meteorological tracking tools. Authorities and residents are advised to note the current precipitation measurements.

Why it is dangerous and what to do

⚠️ Safety
• Stay informed through local weather updates and official advisories.
• Exercise caution if traveling on roads affected by heavy rain.
• Ensure drainage around residential areas is clear.
📊 The numbers, from wweather1 data
San Salvador: now +23°, Overcast.
That is 1° above the September climate norm.
The record for this date is +30° (2023).
Three-day forecast: 20 September: +29°/+22° · 21 September: +26°/+22° · 22 September: +24°/+21°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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