Visiting Peru in January: Weather, Crowds, and What to Expect

January Weather in Peru

January sits squarely in Peru’s summer/wet-season divide. The Pacific coast basks in its hottest and sunniest months; the highlands and Amazon receive consistent afternoon and overnight rain. For a full overview of when to visit, see our first-time Peru guide.

City	Avg High	Avg Low	Conditions
Lima	27°C	20°C	Sunny, low humidity, best beach weather
Cusco	18°C	8°C	Warm mornings, heavy afternoon rain
Arequipa	20°C	9°C	Warm, occasional afternoon showers
Puno	15°C	5°C	Rainy, cold nights, lake may flood shores
Trujillo	28°C	19°C	Dry, hot, excellent for coastal sites
Iquitos	31°C	23°C	Hot, humid, high-water season beginning

The Highlands in January

The Andes are green and lush in January — landscapes that look parched and brown from June to September transform into vivid pastures. The cost is daily rain: typically clear mornings giving way to heavy showers from early afternoon. Machu Picchu remains fully operational; the site is partially cloud-covered but genuinely beautiful in the wet season. The Salkantay Trek and Inca Trail are open but require waterproof gear and gaiters. Flash flooding can affect unpaved roads — check conditions before attempting remote routes.

The Coast in January

January is the best month on Peru’s Pacific coast. Lima’s beaches at Miraflores, La Herradura, and Asia south of the capital fill with local families. Paracas and the Ballestas Islands are warm and pleasant, with no risk of the coastal fog that dominates June–October. Trujillo and Huanchaco are at their warmest.

The Amazon in January

The Amazon enters high-water season, with river levels rising through January and February. For river travel and wildlife spotting from the water, January is excellent — the Pacaya Samiria wetlands begin to fill, providing access to otherwise inaccessible areas. Jungle lodges operate normally; waterproofs and strong insect repellent are essential.

Notable Events in January

Festival of the Virgin of the Puerta (Otuzco, La Libertad): One of the most important religious pilgrimage festivals in northern Peru, held on 15 January. Thousands of pilgrims walk to the Otuzco sanctuary; the town fills with musicians, dancers, and traditional food stalls. Otuzco is approximately 75km from Trujillo.

Lima Summer Festival: Throughout January and February, Lima’s Miraflores and coastal districts host outdoor music events, art fairs, and the annual Lima surf calendar events on the Costa Verde.

Packing for January in Peru

For the highlands (Cusco, Machu Picchu):

• Lightweight waterproof jacket (essential — packable)
• Gaiters for muddy trails
• Moisture-wicking base layers
• Light insulating layer for cold evenings
• Waterproof bag covers or dry bags for electronics

For the coast (Lima, Trujillo, Paracas):

• Light summer clothing
• High-SPF sunscreen
• Sunglasses
• Light layer for evenings in Lima (sea breeze)
• Swimwear

For the Amazon (Iquitos):

• Long-sleeve light shirts (sun and insect protection)
• Strong DEET repellent (30–50%)
• Quick-dry trousers
• Waterproof sandals or hiking boots
• Yellow fever vaccination certificate (required by lodges)

Practical Tips

Altitude: No seasonal adjustment needed for altitude planning — the same acclimatisation rules apply year-round.

Crowds: Machu Picchu is less crowded than May–August but not deserted. Lima beaches are packed with Peruvians on summer weekends — plan around this if beach tranquility is the goal.

Prices: Coastal accommodation prices rise in January for Peruvian summer. Highland prices are standard or slightly below peak.