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Arenal's Climate: Beyond Dry & Green Seasons

  //travel-leisure.news-articles.net/content/2026/ .. 5/arenal-s-climate-beyond-dry-green-seasons.html
  Published in Travel and Leisure on Thursday, January 15th 2026 at 8:13 GMT by Travel + Leisure

Understanding Arenal's Climate: Beyond the Dry and Green Seasons

While Costa Rica, and Arenal specifically, is traditionally divided into a dry season (December to April) and a green season (May to November), the reality is becoming more complex. The impact of climate change is subtly altering rainfall patterns, and while the broad seasonal trends remain, expect occasional deviations. The increasingly unpredictable weather adds an element of excitement - and necessitates flexibility in your itinerary.

The Traditionally Dry Season (December - April): Peak Perfection, Peak Prices

This remains the most popular time to visit. Visitors can anticipate consistently sunny days and warm temperatures, typically hovering around 85?F (29?C). Trails are generally drier, making hiking and exploration more comfortable. The clarity of the views of the Arenal Volcano itself is at its best during these months. However, this popularity comes at a cost. Expect significantly higher prices for accommodation, tours, and transportation. Booking well in advance (at least six months) is strongly recommended to secure your preferred options, especially if travelling during the Christmas/New Year period or Easter week. Competition for popular activities like ziplining and whitewater rafting will be fierce. While wildlife sightings are still possible, they're often less frequent as animals disperse in search of water during the drier months.

The Green Season (May - November): Rainforest Renewal and Value

The green season offers a different, yet equally appealing, experience. This period is characterized by daily afternoon showers, which contribute to the area's incredibly lush and vibrant landscapes. While the mornings often begin brightly, be prepared for rainfall in the afternoon. The humidity is also higher during this time. The benefit? Significantly lower prices and fewer crowds. This is an ideal choice for budget travelers or those who prefer a more tranquil experience. The consistent moisture encourages a blossoming of flora and fauna; wildlife sightings are often more common as animals congregate around water sources. The rain also enhances the therapeutic properties of the hot springs - a truly magical experience.

Shoulder Seasons (April-May & November-December): A Balanced Approach

These transitional months provide a sweet spot for many. April-May offers a gradual shift from the dry to the wet season, with fewer crowds than the peak months but still relatively pleasant weather. November-December sees the tail end of the green season with the return of more sunshine and drier conditions, alongside a festive atmosphere. These are excellent choices for those seeking a balance between good weather and affordability.

Considerations for 2026 & Beyond: Microclimates & Evolving Trends

It's crucial to remember that Arenal is a region of microclimates. While a storm might be raging on one side of the volcano, the other side could be bathed in sunshine. Always check local weather forecasts closer to your travel date. Furthermore, reports suggest increased volcanic activity, although still within safe parameters, can influence local weather patterns; monitoring official volcano advisories is prudent.

Recent data also indicates a rise in 'ecotourism' within Arenal. While adventure activities remain popular, visitors are increasingly interested in sustainable travel options, such as supporting local communities and engaging in responsible wildlife viewing. Tour operators are responding by offering more eco-focused tours and accommodations.

Essential Packing List Adjustments

Regardless of when you visit, packing appropriately is vital. Always include rain gear (a lightweight, waterproof jacket and pants are ideal) and quick-drying clothing. Sturdy hiking boots are essential for exploring the trails. Insect repellent is also a must year-round, but particularly during the green season. Don't forget sunscreen and a hat to protect yourself from the sun, even on cloudy days.

Plan your Arenal adventure today! Remember to research and book in advance, and embrace the unpredictable beauty of Costa Rica.