Things to Do in Medan in December
December weather, activities, events & insider tips
December Weather in Medan
Is December Right for You?
Advantages
- December sits right in Medan's drier window - you're getting about 10 rainy days versus the 20+ you'd see during peak monsoon. Rain typically hits in short afternoon bursts rather than day-long washouts, so you can actually plan around it.
- The heat backs off just enough to make outdoor exploration tolerable. That 87°F (31°C) high is genuinely more comfortable than the 95°F+ (35°C+) you'd face in June or July, and mornings start pleasantly cool at 74°F (23°C) - perfect for early market visits before the sun climbs.
- Tourist crowds thin out considerably after the November holiday rush but before the Chinese New Year surge hits in late January. You'll find better hotel rates, shorter waits at Istana Maimun, and locals have more time to chat at coffee shops without the peak-season chaos.
- December brings durian season into full swing - the fruit markets around Jalan Sutomo overflow with varieties you won't find outside North Sumatra. If you're into food culture, this is when to come. The cooler evenings also make the night food scene at Merdeka Walk actually enjoyable rather than sweat-inducing.
Considerations
- That 70% humidity is no joke - it's the kind that makes your clothes stick to you within minutes of leaving air conditioning. Even though it's technically drier than other months, you're still dealing with tropical moisture that fogs up camera lenses and makes any uphill walking feel twice as hard.
- The variable weather pattern means you can't really trust the forecast beyond 24 hours. You might plan a day trip to Berastagi and wake up to clear skies, only to have clouds roll in by noon. It keeps you on your toes, which some travelers find exhausting.
- December coincides with end-of-year local holidays and school breaks, so while international tourists are fewer, domestic travelers from Jakarta and other Indonesian cities fill up the popular spots on weekends. Friday through Sunday sees noticeably higher prices and crowds at Lake Toba departure points.
Best Activities in December
Lake Toba Multi-Day Tours
December weather makes the 176 km (109 mile) journey to Lake Toba significantly more pleasant than wet season months. The volcanic caldera sits at 900 m (2,953 ft) elevation where temperatures drop to a comfortable 72°F (22°C), and you're likely to catch those famous sunrise views over Samosir Island without heavy cloud cover. The ferries run more reliably in December since wind patterns calm down, and the water clarity improves for swimming. Most visitors do 2-3 day trips staying in traditional Batak villages - the cooler highland air is genuinely refreshing after Medan's humidity.
Bukit Lawang Orangutan Trekking
The jungle trails are muddy year-round, but December's reduced rainfall means the rivers are crossable and leeches are slightly less aggressive. You're looking at 2-4 hour treks through primary rainforest at the edge of Gunung Leuser National Park, about 86 km (53 miles) northwest of Medan. December mornings offer the best orangutan sightings since they're more active in cooler temperatures before midday heat sets in. The 70% humidity is actually lower than what you'd experience deeper in wet season, though you'll still sweat through everything.
Maimun Palace and Colonial Architecture Walking Routes
Early morning walks through central Medan work beautifully in December when temperatures start at 74°F (23°C) before climbing. The 1888 Istana Maimun opens at 8am, and you'll have the ornate throne room practically to yourself before 10am when tour groups arrive. December's drier pattern means better photography light and less chance of getting caught in downpours while exploring the Dutch colonial buildings around Lapangan Merdeka. The 2-3 km (1.2-1.9 mile) walking circuit between palace, Mesjid Raya mosque, and Tjong A Fie Mansion is manageable before noon heat peaks.
Berastagi Highland Day Trips
This hill station 66 km (41 miles) south of Medan sits at 1,300 m (4,265 ft) where December temperatures drop to 65-75°F (18-24°C) - genuinely cool air that feels remarkable after Medan's heat. The fruit and vegetable markets overflow with December harvest produce, and visibility to Mount Sinabung and Mount Sibayak peaks improves significantly compared to cloudy wet season months. You can hike Sibayak volcano in about 2 hours up, 1.5 hours down, with sulfur vents and crater views. December weather makes this actually enjoyable rather than a muddy slog.
Traditional Coffee Shop Circuit
Medan's legendary coffee culture hits differently in December when evening temperatures drop to comfortable levels for sitting in open-air kopitiams. The city's Acehnese and Mandailing coffee traditions mean thick, sweet kopi served with kaya toast and soft-boiled eggs. December evenings from 6-9pm offer the best atmosphere when locals gather after work and the heat finally breaks. The 3-4 km (1.9-2.5 mile) circuit between Kesawan area, Jalan Semarang, and Kampung Madras covers the essential spots without melting in afternoon sun.
Merdeka Walk Night Market Experience
This pedestrian street comes alive after sunset when temperatures drop and the food stalls set up. December's drier weather means the outdoor seating areas stay open more consistently without sudden rain shutdowns. You're looking at 200+ meters (656 feet) of street food vendors selling everything from sate padang to bika ambon cake, plus live music stages on weekends. The crowd energy peaks 7-10pm when families come out - it's genuinely the social heart of Medan on weekend evenings.
December Events & Festivals
Christmas Celebrations in Medan's Christian Communities
Medan's significant Christian population, particularly in Batak and Chinese communities, puts on elaborate Christmas events throughout December. The churches around Jalan Imam Bonjol and cathedral area host evening services with traditional Batak choir performances that blend indigenous music with Christian hymns - culturally fascinating even for non-religious visitors. Street decorations go up mid-December, and the night markets add seasonal foods. It's a window into Indonesia's religious diversity that surprises many first-time visitors.
Year-End Shopping Festivals
Major malls like Sun Plaza and Centre Point run extended sales throughout December with genuine discounts on local goods, batik, and Indonesian fashion brands. Not exactly a cultural experience, but useful if you need gifts or want to see how urban Indonesians shop. The air conditioning also provides welcome relief from December humidity. Food courts offer fixed-price local dishes in comfortable settings - a good introduction before hitting street stalls.