Coquimbo Rainfall Forecast: This Week’s CEAZA Update

Rainfall Alert: Coastal Trough Brings Showers to Coquimbo Region, Chile

La serena, Chile – August 5, 2024 – Residents of the Coquimbo Region in Chile are bracing for rainfall as a coastal trough develops off the coast. Forecasts indicate precipitation will begin as early as Friday, August 8th, impacting several localities across the region.

The Advanced Studies Center in Arid Areas (CEAZA) predicts the heaviest rainfall will concentrate in the Elqui province, with drizzles expected in La Serena and Coquimbo. Coastal areas are also likely to experience showers, including Punta de Choros, Gabriela Mistral, Guanaqueros, and Tongoy. The iconic Pan de Azúcar national park is also under a precipitation watch.

While the rainfall offers a welcome respite from the typically arid conditions, temperatures are expected to remain mild, peaking at 19°C (66°F) along the northern coast. Skies will be predominantly cloudy throughout the period.

Understanding the Coastal Trough Phenomenon

This weather event is driven by a coastal trough – a relatively common meteorological feature along the western coast of South America.These troughs form when cooler air masses interact with warmer, moist air over the ocean, creating conditions ripe for precipitation.

Long-Term Implications for the Coquimbo Region

The Coquimbo Region, known for its desert climate, relies heavily on infrequent rainfall events to replenish water resources. While this upcoming precipitation is not expected to alleviate long-term drought conditions, it will provide a temporary boost to local ecosystems and agricultural activities.

The region’s unique geography – nestled between the Andes Mountains and the Pacific Ocean – makes it especially susceptible to the impacts of both drought and episodic rainfall. Monitoring these coastal trough developments is crucial for effective water management and disaster preparedness. Residents are advised to stay updated with the latest forecasts from Megatiempo and local authorities.

What specific areas within the Coquimbo Region are predicted to receive the highest probability of precipitation between August 10th and 11th?

Current Weather Patterns Over Coquimbo, Chile

As of August 6th, 2025, the Coquimbo Region of Chile is experiencing a continuation of its typically arid conditions. However, recent updates from the Centro de Estudios Ambientales (CEAZA) indicate a potential shift in weather patterns this week. This article provides a detailed breakdown of the Coquimbo rainfall forecast, analyzing CEAZA’s latest data and offering insights for residents and agricultural stakeholders. We’ll cover predicted precipitation levels, temperature fluctuations, and potential impacts on water resources.Understanding the weather in Coquimbo is crucial, especially given the region’s ongoing drought situation.

CEAZA’s Weekly Precipitation Outlook (August 6th – 12th, 2025)

CEAZA’s modeling suggests a low-pressure system moving along the coast could bring isolated showers to the coastal areas of Coquimbo. Inland areas are expected to remain dry. Here’s a day-by-day breakdown:

August 6th – 7th: Mostly sunny with clear skies. Temperatures ranging from 18°C to 24°C. No rain forecast Coquimbo.

August 8th – 9th: Increasing cloud cover, especially along the coast. A 20-30% chance of light showers in the Elqui Valley and Choapa Valley. Temperatures slightly cooler,averaging 16°C to 22°C.

August 10th – 11th: Highest probability of precipitation (40-50%) along the coastal strip from La Serena to Tongoy.Expected rainfall amounts: 1-3mm. Temperatures: 15°C to 20°C. Coquimbo region weather will be changeable.

August 12th: Clearing skies and a return to sunny conditions. Temperatures gradually rising back to 20°C – 24°C.

These forecasts are subject to change, so continuous monitoring of CEAZA updates is recommended.

Impact on Water Reservoirs & Agriculture

The predicted rainfall, while minimal, offers a small respite for the region’s critically low water reservoirs. The Embalse La Paloma and Embalse Puclaro, key water sources for the region, are currently operating at historically low levels. Even a few millimeters of rain can contribute to slowing the rate of depletion.

Agricultural Implications: The Elqui Valley agriculture sector, known for its pisco production and fruit orchards, is particularly vulnerable to drought. The anticipated showers could provide temporary relief for sensitive crops, but notable rainfall is needed for significant recovery.

Water Management: Local authorities are urging residents to continue practicing water conservation measures. The Coquimbo drought remains a serious concern, and responsible water usage is vital.

Reservoir Levels (as of August 6th, 2025):

Embalse La Paloma: 18% capacity

Embalse Puclaro: 22% capacity

Embalse Recuaro: 15% capacity

Historical Rainfall Data & Long-Term Trends

Analyzing historical rainfall data reveals a consistent decline in precipitation across the Coquimbo Region over the past two decades. The average annual rainfall in La Serena has decreased by approximately 30% since 2005. This trend is linked to broader climate change patterns affecting central Chile. Climate change Coquimbo is a growing concern.

Average Annual Rainfall (La Serena):

2000-2005: 200mm

2010-2015: 160mm

2020-2025 (YTD): 140mm

CEAZA Monitoring Tools & Resources

CEAZA provides a range of tools and resources for monitoring weather conditions in the Coquimbo Region:

CEAZA Website: https://www.ceaza.cl/ (Check for the latest updates and detailed reports)

Real-time Rainfall Maps: Available on the CEAZA website, providing visual representations of precipitation levels across the region.

Agricultural Drought Monitoring: CEAZA’s drought monitoring system assesses the impact of drought on agricultural production.

Social Media: Follow CEAZA on social media for swift updates and alerts.

Preparing for potential Rainfall – Practical Tips

Even with limited rainfall expected, it’s wise to prepare for potential localized flooding or disruptions.

1. Clear Drainage Systems: Ensure gutters and drainage channels are clear of debris to prevent water buildup.
2. Secure Outdoor items: Bring in or secure any outdoor furniture or objects that could be blown around by wind.
3. Stay Informed: Regularly check CEAZA’s updates and local news reports for the latest information.
4. Agricultural Considerations: Farmers should assess the water needs of their crops and adjust irrigation schedules accordingly. Consider protective measures for vulnerable plants.
5. Emergency Supplies: Have a basic emergency kit prepared with essential supplies like water, food, and a flashlight.

The role of Atmospheric Rivers

While this week