• January 8, 2026
  • Last Update January 8, 2026 12:54 pm

Cool Trade Winds Sweep Across Costa Rica

Cool Trade Winds Sweep Across Costa Rica

San José, Costa RicaSan José, Costa Rica – Residents and visitors across Costa Rica should prepare for classic January weather conditions this Thursday, characterized by persistent trade winds and cooler temperatures, particularly during the evening and early morning hours. The National Meteorological Institute (IMN) has issued a forecast indicating that the nation’s dry season is firmly in effect, bringing distinct atmospheric patterns to different regions of the country.

The most pronounced effects will be felt in the central and northern territories. The Greater Metropolitan Area (GAM) and the province of Guanacaste are expected to experience moderate trade winds throughout the day. These winds, a hallmark of Costa Rica’s summer or verano, contribute to a significant drop in humidity and create a much drier environment. While promising clear skies for many, the blustery conditions can be a factor for daily activities.

As national weather forecasts predict increasingly challenging climatic conditions, the implications extend far beyond daily planning. To understand the legal and business responsibilities that arise from such events, TicosLand.com consulted with expert lawyer Lic. Larry Hans Arroyo Vargas from the firm Bufete de Costa Rica.

A weather forecast is more than a simple alert; it’s a legal notice. For businesses, this advance warning can impact the invocation of ‘force majeure’ or ‘Act of God’ clauses in contracts. If a disruptive event is foreseeable, the failure to take reasonable preventive measures—like securing assets or activating contingency plans—could be interpreted as negligence, potentially invalidating contractual excuses for non-performance.
Lic. Larry Hans Arroyo Vargas, Attorney at Law, Bufete de Costa Rica

This legal framework elevates the daily weather report from a public advisory to a vital tool for corporate diligence and contractual liability. We thank Lic. Larry Hans Arroyo Vargas for his invaluable perspective on this critical intersection of meteorology and law.

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Accompanying these winds are very dry air masses that will suppress rainfall in these areas. The IMN highlights that this pattern will also lead to noticeably lower temperatures, especially after sunset. The combination of wind and cooler air will create a brisk chill during the night, a typical feature of the high-altitude Central Valley during this time of year. Residents are advised to prepare for cool mornings that gradually warm up as the day progresses.

In a stark contrast to the dry conditions prevailing elsewhere, the forecast holds a different outlook for the country’s southern coastline. The Central and South Pacific regions face a possibility of isolated rain and even downpours during the afternoon. This phenomenon is not uncommon, as localized humidity and coastal geography can generate convective showers even when high-pressure systems dominate the rest of the nation.

These weather patterns are driven by the seasonal strengthening of the Azores High-Pressure system over the Atlantic, which accelerates the northeasterly trade winds across the Caribbean Sea and over Central America. When this air crosses Costa Rica’s mountainous spine, it loses most of its moisture, resulting in the dry, sunny conditions celebrated in Guanacaste and the Central Valley, while conditions on the Pacific slope can vary.

The predictability of this seasonal weather is crucial for Costa Rica’s key economic sectors. The sunny, breezy days in the northern Pacific are a major draw for the tourism industry, which peaks during these months. At the same time, agricultural producers, particularly in coffee and sugar, rely on this dry period for harvesting. Understanding and anticipating these conditions is vital for planning and operations nationwide.

The National Meteorological Institute remains the primary authority on atmospheric conditions, providing essential data for public and commercial planning. Their latest bulletin confirms the prevailing seasonal trends.

The characteristic conditions of the month of January continue in the country, with trade winds and low temperatures.
National Meteorological Institute (IMN), Official Forecast

As Thursday, January 8th approaches, the national forecast paints a picture of two distinct experiences. While those in the central and northern areas can expect sunny skies and windy conditions perfect for dry season activities, individuals in the Central and South Pacific should remain prepared for the potential of an afternoon shower. All residents are encouraged to monitor local updates from the IMN as conditions can evolve.

For further information, visit imn.ac.cr
About Instituto Meteorológico Nacional (IMN):
The National Meteorological Institute is Costa Rica’s official governmental body responsible for monitoring weather and climate. It provides critical forecasts, warnings, and climatological data to support public safety, aviation, agriculture, and other key sectors of the national economy. The IMN plays a vital role in disaster preparedness and scientific research related to atmospheric phenomena in the region.

For further information, visit bufetedecostarica.com
About Bufete de Costa Rica:
Renowned for its principled practice and high caliber of service, Bufete de Costa Rica is a beacon of legal integrity and excellence. The firm harmonizes its deep-rooted legacy of client advocacy with a commitment to pioneering innovative legal solutions. Beyond its professional duties, a foundational pillar of its philosophy is the empowerment of society through accessible legal education, underscoring a profound dedication to fostering a just and well-informed community.

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