December in Lima marks the height of summer in Peru, transforming the coastal capital into a city of vibrant energy and sun-drenched days. While the Andes mountains are cloaked in winter snow, Lima experiences its warmest temperatures of the year, averaging between 21°C and 28°C (70°F to 82°F). This is the season when the city fully awakens, shedding the subtle mist of the garúa season to reveal clear, cloudless skies that define the Peruvian summer.
The Coastal Summer Experience
The defining feature of Lima’s December weather is its reliably sunny and dry conditions. Rain is an extreme rarity, making it the perfect time for outdoor activities along the Costa Verde. Humidity levels remain moderate, and the lack of rainfall creates a comfortable environment for exploration. The sea temperature, while cooler than the air, is ideal for water sports, inviting locals and visitors alike to enjoy the Pacific Ocean.
Temperature and Ocean Influence
Daytime temperatures climb steadily throughout the month, peaking in the warmest period of the year. Evenings offer a pleasant reprieve, cooling down just enough to be perfect for dining al fresco. The Humboldt Current continues its moderating influence, keeping the air fresh and preventing the intense heat found in inland deserts. This unique maritime climate ensures that the sun is welcome, but rarely oppressive.
Average High Temperature: 28°C (82°F)
Average Low Temperature: 21°C (70°F)
Average Rainfall: 0 mm (0 inches)
Average Sea Temperature: 22°C (72°F)
Urban Life and Cultural Vibrancy
Festivals and Local Traditions
The festive season extends into December, with Christmas and New Year’s celebrations turning the city into a dazzling display of lights and joy. Parks and public squares are adorned with elaborate decorations, and the air buzzes with the sounds of music and family gatherings. December is a time when Lima’s social calendar is at its most active, with rooftop bars and beach clubs hosting events that last until dawn.
For the traveler, this weather supports a wide array of activities. Beachgoers flock to districts like Miraflores and Barranco, while food enthusiasts can enjoy the city’s renowned cuisine on sunlit terraces. The clear skies provide excellent conditions for photography, capturing the stark beauty of the desert landscape against the vibrant city life.
Planning Your December Visit
Packing for Lima in December requires a focus on light, breathable clothing. Linen and cotton are essential to stay comfortable under the strong sun. Sunscreen, sunglasses, and a wide-brimmed hat are non-negotiable accessories for sightseeing. While the weather is largely predictable, carrying a light layer for air-conditioned indoor spaces is always a smart strategy.
The combination of warm weather, long days, and festive atmosphere makes December one of the most appealing times to visit Lima. The city balances relaxation with celebration, offering a genuine taste of Peruvian summer. Whether you are exploring historic neighborhoods or simply relaxing by the water, the weather ensures an unforgettable experience.
