December straddles the tail end of the short rainy season and the onset of a drier spell, with weather varying across the month. Early December may see lingering showers, particularly in the rainforest zone, while the second half often dries out, offering clearer skies. Lower slopes enjoy daytime temperatures of 15°C to 25°C (59°F to 77°F), cooling at night. Higher up, above 5,000 meters, daytime conditions hover near 0°C (32°F), with summit nights plunging to -10°C (14°F) or below, worsened by wind chill to -20°C (-4°F). High winds are frequent, and snow is more likely at the peak, adding both beauty and difficulty. Trails on the western side may be damp early in the month, but they firm up as December progresses, especially post-rainfall.

Crowds and Atmosphere

December’s holiday appeal—summiting for Christmas or New Year’s—draws more climbers, making it a lively time on the mountain. The Lemosho Route starts quieter than southern paths like Machame, but expect increased traffic after day 3’s merge and at camps during peak festive dates. Booking early secures your spot amid this seasonal rush. The quieter early stretches, paired with a celebratory summit vibe, create a memorable contrast, though solitude seekers might find the bustle a trade-off.

Unique Highlights

December’s cooler air and potential snow atop Uhuru Peak craft a striking alpine scene, especially if you summit during a holiday. The rainforest glows with post-rain lushness, hosting birds and small wildlife, while the Shira Plateau’s stark expanse may shimmer with frost or light snow. The 8-day itinerary lets you soak in these sights, with clear days offering crisp views of Kibo against Tanzania’s summer sky—south of the equator, December is their warm season.

Practical Tips and Gear

• Acclimatization: The 8-day schedule is key for adjusting to altitude in colder, windier conditions. Hydrate generously (3–4 liters daily) and use rest days to acclimate, boosting your summit chances.

• Gear: Pack versatile layers—breathable base, fleece, and a down jacket for summit night—plus a waterproof shell for early-month rain. Sturdy boots, gaiters, and poles handle damp or snowy trails, while a -15°C-rated sleeping bag tackles summit cold. Sunglasses and a windproof hat counter glare and gusts.

• Training: Prep with cardio (running, hiking) and weighted pack walks to master the 70 km trek and 4,900-meter gain, factoring in cooler, thinner air.

Why December Appeals

The Lemosho Route in December blends dry-season perks—clearer skies and milder rain—with a festive twist. It’s less crowded than July or August, yet livelier than November, offering a balance of solitude and camaraderie. Snow at the summit adds a rare thrill, and the western approach, while exposed to some weather, delivers a scenic payoff for those equipped to handle it. With Tanzania’s summer bringing warmth to lower slopes, it’s a rewarding time for a holiday climb.

Summary Table: December on Lemosho Route

Climbing the Lemosho Route in December is a chance to conquer Kilimanjaro with a seasonal twist—cool, potentially snowy, and brimming with holiday spirit for those ready to embrace its nuances.