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High Rainfall Forecasted for Guatemala City on September 21, 2026
An automated alert from wweather1.com indicates high rainfall expected in Guatemala City on September 21, 2026. The forecast shows expected precipitation exceeding established alert thresholds.
According to weather forecast data from wweather1.com, Guatemala City is expected to experience significant rainfall on September 21, 2026.
The forecasted precipitation value is 43 mm. This figure crosses the designated system threshold of 30 mm, prompting a high-severity alert for the area.
The event was generated automatically by wweather1.com's monitoring system after processing its internal forecast metrics for the country.
Why it is dangerous and what to do
⚠️ Safety
• Exercise caution while traveling and avoid driving through waterlogged streets.
• Monitor official local updates for changes in weather conditions.
• Ensure outdoor drainage paths remain unobstructed where safe to check.
📊 The numbers, from wweather1 data
Guatemala City: now +26°, Drizzle.
That is 2° above the September climate norm.
The record for this date is +27° (2023).
Three-day forecast: 21 September: +26°/+17° · 22 September: +24°/+17° · 23 September: +25°/+17°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates. 🌍 Weather in nearby cities
Mérida
now
⛅
+33°
Guatemala City
now
🌦️
+26°
Managua
now
🌦️
+26°
Tegucigalpa
now
⛈️
+23°
San Salvador
now
⛈️
+24°
Playa del Carmen
now
🌦️
+28°
📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.