Very heavy rains accompany the beginning of the week for several regions of the countryreported this Monday, October 20, the National Meteorological Service (SMN), official climate source of the Government of Mexico.
For today, the front no. 8 with stationary characteristics will interact with a high-altitude trough extended from the east of the Gulf of Mexico to the Yucatan Peninsula, a low pressure channel over the west of said gulf and atmospheric instability in the southeast of the countrywhich will cause intense occasional rains in Veracruz (regions: Los Tuxtlas and Olmeca) and Chiapas (regions: Selva, Fronteriza and Soconusco); very heavy occasional rains in Veracruz (region: Papaloapan), Tabasco (regions: Sierra and Chontalpa) and Oaxaca (regions: Papaloapan, Istmo and Sierra Norte); and heavy occasional rains in Veracruz (region: Las Montañas), Puebla (regions: Valle Serdán and Tehuacán-Sierra Negra), and areas of Campeche, Yucatán and Quintana Roo, in addition to rains and showers in northeastern Mexico.
In addition, The mass of cold air associated with the frontal system will modify its thermal characteristics, leading to a gradual increase in temperatures in the east of the country..
Likewise, winds from the north will continue with gusts of 35 to 50 km/h on the coasts of Veracruz, and gusts of 55 to 70 km/h in Oaxaca (isthmus and gulf of Tehuantepec).
During the night, this front will weaken over the northeast of the Gulf of Mexico, ceasing to affect the country..
On the other hand, a low pressure channel will prevail within the Mexican territory, and in combination with the entry of humid air from the Pacific Ocean and Gulf of Mexico, and atmospheric instability in the west of the national territory, will generate heavy occasional rains in Guerrero (southeast); as well as rains with intervals of showers in Michoacán, Colima, Jalisco, Nayarit, Sinaloa and Durango; and isolated rains in areas of Baja California Sur, Tlaxcala, Morelos, Mexico City, Hidalgo and Chihuahua.
Finally, a low pressure area with a probability of cyclonic development that will be located south of the coasts of Oaxaca and Chiapas, will reinforce the probability of rain in the southern states of the Mexican Pacific coast.
Intervals of showers and occasional strong to intense rains could be accompanied by electric shocks and hail.
Rain forecast for today, October 20, 2025:
| Very heavy rains with intense occasional events (75 to 150 mm): | Veracruz (Los Tuxtlas and Olmeca regions) and Chiapas (Selva, Fronteriza and Soconusco regions). |
| Heavy rains with very strong spots (50 to 75 mm): | Veracruz (Papaloapan region), Oaxaca (Papaloapan, Istmo and Sierra Norte regions) and Tabasco (Sierra and Chontalpa regions). |
| Showers with occasional heavy rains (25 to 50 mm): | Puebla (Valle Serdán and Tehuacán-Sierra Negra regions), Guerrero (southeast), Veracruz (Las Montañas region), Campeche (south and southwest), Yucatán (northeast and east) and Quintana Roo (north and center). |
| Shower intervals (5 to 25 mm): | Sinaloa, Tamaulipas, Durango, Nayarit, Jalisco, Colima, Michoacán and State of Mexico. |
| Isolated rain (0.1 to 5 mm): | Baja California Sur, Chihuahua, San Luis Potosí, Hidalgo, Tlaxcala, Morelos and Mexico City. |
Heavy to intense rain could reduce visibility, increase river and stream levels, and cause ponding, landslides and flooding.
Gusts of wind could cause trees and advertisements to fall.
With information from the National Meteorological Service
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