Mexico - weather in August

August is the last summer month in the Northern Hemisphere, and in Mexico, a very extensive country crossed by the Tropic of Cancer in the central part, it is a hot, muggy and rainy month in the center-south, very hot and sunny in the north, with possible thunderstorms in inland areas.
At low altitudes, the temperature is warm, and not too hot, only on the north-west coast, exposed to the Pacific, where a cold current flows (see Tijuana, Ensenada). Instead, in the south, in the tierras frìas (see Mexico City), the temperature is not too high because it is mitigated by the altitude.
In the rest of the country, August is a hot month, and in Mexico it is on average the hottest of the year together with July.
Especially in inland areas and at low altitudes, heat waves can occur, during which the temperature can reach and exceed 40 °C (104 °F). In particular, in the central-northern inland areas (see Hermosillo) and in the north-west, in the Yuma desert (see Mexicali), extremely high temperatures can be reached, even more than 45 °C (113 °F).
The rains are very rare or completely absent in the northwest, in Baja California.
On the other hand, in the Sierra Madre Occidental and in the Chihuahua desert, although the rains are quite rare, thunderstorms can form, brought by humid air coming from the Pacific Ocean ("North American monsoon"). In Baja California South, on the southern part of the California peninsula, rare rains occur, which become more frequent in inland hilly and mountainous areas.
On the coast of the Gulf of Mexico, the rains are relatively rare in the northern part, on the border with Texas (see Matamoros), moderately abundant in the central part (see Tampico), and decidedly abundant in the southern part (see Veracruz). Actually, in the south, the rains are abundant everywhere.
From June to November is the season of hurricanes, which mainly affect the coasts of the Gulf of Mexico and the southern Pacific coast, but sometimes they can also affect the north-west, i.e. the California peninsula, or they can penetrate inland. August through October is when hurricanes are most likely.

The sea is warm enough for swimming everywhere, except in the northern part of the Pacific coast (see Tijuana, Ensenada), where it is very cool due to the already mentioned cold current.




See also: Mexico, the weather in July - September
The climate of Mexico