Rainbow Mountain in December

Thinking about hiking Rainbow Mountain in December? You’re probably wondering if it’s worth visiting during Peru’s rainy season. While December does bring more precipitation, it also offers a uniquely mystical version of Vinicunca—with fog rolling over the ridgelines, greener valleys, fewer tourists, and a peaceful atmosphere that’s rare during the dry season.

In this comprehensive guide, you’ll find everything you need to know about trekking Rainbow Mountain in December: weather conditions, trail safety, packing essentials, pros and cons, and expert advice to help you decide if this off-season adventure is right for you.

What Is Rainbow Mountain?

Rainbow Mountain, or Vinicunca, is one of the most photographed natural wonders in Peru. Located in the Andes southeast of Cusco, the mountain is famous for its stripes of red, yellow, green, and lavender, formed by centuries of mineral layering and erosion.

• Elevation: 5,200 meters (17,060 feet)

• Distance from Cusco: ~100 km (3–3.5 hours by car)

• Trek distance: ~7 km round trip

• Duration: 1 day

• Difficulty: Moderate to challenging due to altitude

Is December a Good Time to Visit Rainbow Mountain?

While not the traditional “best” time, Rainbow Mountain in December can still be a great option—especially if you’re looking to avoid crowds and enjoy a more tranquil, raw Andean experience.

Advantages of Visiting in December:

• Fewer tourists on the trail

• Peaceful scenery with misty peaks and green valleys

• Cheaper tours and more flexible scheduling

• Unique photo opportunities with cloud cover and moody light

• Cultural immersion—experience local life without the tourist rush

Disadvantages:

• Higher chance of rain or snowfall

• Muddy and slippery trails in certain sections

• Limited visibility on some days

• Cold mornings with increased humidity

• Risk of weather-related cancellations

What is the weather like in December?

December marks the beginning of the wettest stretch of the Andean year. Weather can change rapidly—sun in the morning, showers by noon, and fog at any time.

Weather Overview:

• Daytime highs: 10°C to 14°C (50°F to 57°F)

• Morning temperatures: 0°C to 3°C (32°F to 37°F)

• Rainfall: 70–120 mm over the month

• Humidity: High

• Wind: Moderate at the summit

• UV index: High even when cloudy

Trail Conditions in December

Due to rainfall, the trail can be muddy and slippery, especially in shaded areas or after heavy downpours.

Terrain Details:

• Start point: ~4,600 meters

• Summit: 5,200 meters

• Trail type: Dirt and rocky paths, some steep sections

• Hazards: Mud, puddles, and less traction on inclines

• Crowds: Minimal—great for solitude

Guided tours continue to operate daily unless weather conditions become dangerous.

Visibility and Views in December

Visibility at the summit is not guaranteed. You may find:

• Clear skies early in the morning

• Mist and fog rolling in after 9:30 a.m.

• Cloud-covered peaks that shift throughout the day

That said, even partial views can be stunning, and the surrounding landscapes are greener than in the dry season.

Packing List for Rainbow Mountain in December

The right gear is essential to stay dry, warm, and safe.

Clothing:

• Waterproof hiking boots with good grip

• Thermal base layer (top and bottom)

• Fleece or down jacket

• Rain poncho or waterproof shell

• Waterproof hiking pants or gaiters

• Gloves, beanie, neck gaiter

• Sunglasses and sunblock

• Wool socks

Essentials:

• Trekking poles (strongly recommended)

• 1.5–2 L of water (hydration is key at altitude)

• High-energy snacks (nuts, fruit, bars)

• Waterproof backpack or pack cover

• Headlamp or flashlight (optional, for cloudy days)

• Phone/camera with dry bag

• Passport (required for entry)

• Cash in soles for entrance fees or horse rental

How to Prepare for the Altitude

Altitude sickness is more of a concern than rain. You’ll be hiking above 5,000 meters, where the air is thin and oxygen is limited.

Tips to Acclimate:

• Spend 2–3 days in Cusco before the trek

• Avoid alcohol and greasy foods

• Stay hydrated and drink coca tea

• Take altitude medicine (consult a doctor first)

• Hike at a slow, steady pace

• Don’t skip breakfast—fuel is important

Typical Itinerary for a December Day Tour

Despite rain risks, most operators maintain the standard full-day schedule.

1. Hotel pick-up in Cusco: 4:00–4:30 a.m.

2. Drive to trailhead (via Cusipata): ~3 hours

3. Breakfast stop: 6:30 a.m.

4. Start the hike: 7:30–8:00 a.m.

5. Summit arrival: 9:30–10:30 a.m.

6. Red Valley (optional): +1 hour

7. Return to vehicle and lunch: 12:00–1:00 p.m.

8. Arrival back in Cusco: 4:30–5:30 p.m.

Red Valley in December: Should You Hike It?

The Red Valley is one of the most underrated highlights of the Rainbow Mountain region. However, in December, conditions can be more challenging.

• Path condition: Wet but navigable with proper boots

• Color intensity: Enhanced after rainfall

• Time required: ~45–60 extra minutes

• Fee: 10 soles (~$3 USD), cash only

Recommended only if you’re confident on slippery trails.

Horse Rentals: Are They Available in December?

Yes. Horses are available at the trailhead and during the hike.

• Cost: 80–100 soles (~$20–25 USD)

• A handler is included to guide you

• Ideal for: High-altitude discomfort, fatigue, or injury risk

Even experienced hikers often rent horses during the rainy season for safety and comfort.

Photography Tips for December

Although clouds may cover the summit, December provides soft light and vibrant green surroundings that create magical compositions.

Photo Advice:

• Shoot between 8:00 and 9:00 a.m. for the best chance of clarity

• Use foreground elements (animals, hikers) for scale

• Embrace the fog and contrast—great for dramatic shots

• Carry lens cloths or waterproof pouches

• Avoid drone use in heavy wind or rain

Tour Prices in December

December is low season, meaning lower prices and better deals.

• Group tours: $30–$55 USD

• Private tours: $90–$150 USD

• Red Valley add-on: 10 soles ($3 USD)

• Horse rental: 80–100 soles

Always verify that your operator includes oxygen, meals, waterproof gear options, and emergency support.

Travel Tips for December

• Leave early: Rain is more common in the afternoon

• Double-check your gear the night before

• Layer your clothing for changing temperatures

• Bring extra socks in case of wet shoes

• Avoid overpacking—keep your load light and waterproof

• Listen to your guide and watch for weather alerts

Frequently Asked Questions

Is Rainbow Mountain open in December?

Yes, it is open year-round. Tours may be rescheduled during heavy storms, but closures are rare.

Will I see the mountain clearly?

Visibility depends on the day. Early hikes (before 10 a.m.) have a higher chance of clear skies.

Is it safe to hike in the rain?

Yes—with proper footwear and a guide. Mud and reduced visibility are concerns, but risks are manageable.

Can I do the hike alone?

It’s possible, but not recommended in December due to weather and altitude risks. A guide is safer.

Should You Visit Rainbow Mountain in December?

Rainbow Mountain in December isn’t the easiest experience—but for travelers who embrace adventure and flexibility, it can be one of the most memorable. With mist swirling across colorful ridges, green valleys stretching into the distance, and few others around, December offers a quieter, more mystical version of Peru’s most colorful trek.

If you’re well prepared, go early in the day, and manage your expectations with the weather, this rainy-season hike may surprise you with its raw beauty and solitude.

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