High Precipitation Forecast for San Salvador

A high-severity rain event is forecast for San Salvador on September 21, 2026, with precipitation expected to reach 51.3 mm.

According to automatic alert data from wweather1.com, forecast values for San Salvador indicate significant rainfall on September 21, 2026.

The predicted precipitation of 51.3 mm surpasses the established local threshold of 30 mm, triggering a high-severity weather alert for the area.

Residents and local authorities in San Salvador are advised to monitor ongoing weather updates as the conditions develop on the forecast date.

⚠️ Safety

• Stay informed by monitoring local weather forecasts and official alerts.

• Ensure proper drainage around residential properties to prevent water accumulation.

• Exercise caution if traveling, as heavy rain may impact road conditions.

📊 The numbers, from wweather1 data

San Salvador: now +26°, Drizzle.

That is 2° below the September climate norm.

The record for this date is +30° (2023).

Three-day forecast: 21 September: +26°/+21° · 22 September: +25°/+22° · 23 September: +26°/+22°

The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

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

Other weather news