December · Indonesia
Best time to visit Lake Toba in December Weather, crowds & prices
Weather in Lake Toba in December
Average temperature 20°C, 356 mm of rain, about 14 days with 6+ hours of sunshine and 92% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
5.7/10
Ranked #12 of 12 months
- Avg temp
- 20°C
- Rainfall
- 356 mm
- Humidity
- 92%
- Days with 6h+ sun
- 14
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Lake Toba scores 5.7/10 for nature and wildlife travel - ranked #12 of 12. Expect around 20°C, 356 mm of rain, and roughly 14 days with 6+ hours of sunshine this month.
Lake Toba fills a vast volcanic caldera on Sumatra-Batak villages on Samosir Island and misty lakeside viewpoints. Best window: the drier months outside peak monsoon.
December in Lake Toba — workable with trade-offs
December averages 20°C (68°F) — warm for the outdoors: start trails early, use shaded routes at midday, and carry more water than you think you need.
356 mm of rain puts this in monsoon territory — about 14 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 5.7/10 here, 12th of 12 months, against 6.8/10 in the destination's best month.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
Figure on low-season pricing, with crowds are light for this destination.
Frequently asked
- What is the weather like in Lake Toba in December?
- In December, Lake Toba averages 20°C, 356 mm of rain, and about 14 days with 6+ hours of sunshine. Its climate-comfort score is 5.7/10.
- Is December a good time to visit Lake Toba?
- December earns a 5.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Lake Toba in December?
- Expect about 356 mm of rain in December. Average humidity is 92% and there are about 14 days with 6+ hours of sunshine.
Curated in Lake Toba
Tickets & experiences
Things to do in Lake Toba
Lake Toba, Indonesia. Live activities and tours from GetYourGuide, matched to this destination.