Regional weather forecast variations

Weather forecasts for mid-August 2026 indicate varying conditions across several regions. On August 16, South American locations showed diverse patterns: Argentina experienced cool temperatures and morning drizzle in Necochea and Quequén, while Chile’s Pucón faced cold, wet conditions. In Ecuador, Guayaquil was expected to be warm with temperatures up to 35°C.

By August 19, forecasts for specific areas showed shifting patterns. Arica was projected to be mostly sunny and warm with a high of 26°C and no precipitation. In Curicó, Chile, conditions were expected to be mostly cloudy with temperatures ranging from 8°C to 19°C and decreasing cloud cover in the afternoon.

Recent meteorological data indicates significant shifts in Chile, with unusual rainfall impacting northern agricultural production. In Arica, the Chacalluta station recorded a 738.9% precipitation surplus, while Antofagasta’s Cerro Moreno recorded 15.8 mm, exceeding its annual normal by 338.9%. These rains, along with wind and potential hail, are affecting ‘primores’—early crops such as tomatoes, peppers, and citrus.

Forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) suggest a high probability of rain during the Fiestas Patrias celebrations on September 18 and 19, with precipitation potentially extending from Antofagasta to the Los Ríos region. However, the Dirección Meteorológica de Chile (DMC) predicts a reprieve from rain starting around August 21 due to a large high-pressure system. This may bring clearer skies and unusual warmth to the Metropolitan Region, though cold air masses could cause morning frosts in central and south-central areas.