Weather in Costa Rica in December

In December, Costa Rica experiences generally pleasant weather, ideal for outdoor exploration. The dry season begins, bringing lower humidity, ample sunshine, and reduced rainfall. Travellers can expect warm temperatures during the day, while nights are cooler but comfortable.

December Climate Overview

• Average Temperature: 16-27°C (61-81°F)
• Rainfall: Low, usually 50-100mm
• Sunshine Hours: Approximately 7-8 hours per day
• Sea Temperature: 27°C (80°F)
• Humidity: Moderate, around 70-75%
• Wind Speed: Mild, averaging 10-15 km/h

What to Expect in December

Daytime Conditions

During the day, temperatures can reach highs of 27°C (81°F), often accompanied by pleasant breezes and ample sunshine. Humidity is moderate, making the heat comfortable for outdoor activities.

Rainfall Patterns

Rainfall in December is minimal, marking the start of the dry season. Any rain is typically short-lived and doesn’t interfere much with plans, leaving ample opportunity for outdoor exploration.

Evening Conditions

Evenings tend to be cooler, with temperatures dropping to about 16°C (61°F). The air is often crisp, creating a comfortable climate for night-time strolls or outdoor dining.

Best Activities in Costa Rica in December

• Outdoor Activities: Enjoy hiking through lush forests, exploring wildlife in national parks, and sightseeing in picturesque towns.
• Seasonal Highlights: Experience the vivid blooms of the tropical flora that come alive as the rains cease.
• Water-based or Nature-based Activities: Good conditions for bird-watching and exploring rainforests.

What to Pack for December

• Appropriate clothing for daytime and evening temperatures
• Protection from sun or rain (hat, sunscreen, umbrella, etc.)
• Footwear suitable for local terrain (e.g., walking, hiking, city streets)
• Reusable water bottle