Puerto Vallarta, Jalisco, August 19, 2026 – Puerto Vallarta started Wednesday with partly cloudy skies. A nearby weather station reported 23°C (73°F), humidity of 89%, and winds near 10 km/h (6 mph) at 5:41 a.m. local time.
Temperatures are forecast to reach about 35°C (95°F) before easing to 26°C (78°F) tonight. City-level forecasts place today’s rain chance near 50% to 55%, with thunderstorms most likely during the afternoon.
The hourly forecast favors a rain window from about 4 p.m. through 6 p.m., although showers or thunderstorms could develop earlier or continue into the evening.
Western Jalisco faces heavier localized rain
Mexico’s National Meteorological Service forecast places western and central Jalisco under a risk of localized rainfall totals between 50 and 75 millimeters, or roughly 2 to 3 inches, from 8 a.m. Wednesday through 8 a.m. Thursday.
Those totals are possible beneath the strongest storms and should not be read as a prediction that every Puerto Vallarta neighborhood will receive that much rain.
The official forecast warns that stronger cells may produce lightning, rapidly rising streams, standing water and flooding in low areas. Hillside routes may also face isolated runoff or debris.
Heat builds before the storms
Humidity will keep the apparent temperature above the measured air temperature. Hourly guidance indicates that it may feel close to 41°C (106°F) during the early and middle afternoon.
Outdoor work and exercise are better scheduled during the morning. Anyone outside later should use shade, drink water regularly and take breaks before symptoms of heat stress appear.
Wind, surf and beach conditions
Winds outside thunderstorms should remain near 8 to 16 km/h (5 to 10 mph), generally shifting toward the west or west-northwest during the afternoon. The official Jalisco forecast allows for storm-related gusts of 30 to 50 km/h (19 to 31 mph).
The federal forecast covering the night and early morning included long-period swell of 1.5 to 2.5 meters, or about 5 to 8 feet, along the Jalisco coast through 8 a.m. The daytime period does not repeat that wave-height advisory for Jalisco.
Beach conditions can still vary sharply along the bay. Swimmers should check the flag posted at each beach and leave the water when thunder is heard.
Best window for outdoor plans
Morning offers the lowest rain risk, while heat becomes the main concern by late morning. Carry rain protection after midday and allow additional travel time from late afternoon, especially if storms develop over the city.
Never drive through a water-covered street or crossing. Conditions can change quickly during the rainy season, and later municipal warnings or beach flags should take priority over this forecast.
Forecast reviewed at 6:35 a.m. on August 19, 2026.
