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Lake Toba

Lake · North Sumatra, 🇮🇩 Indonesia
Area 1,131 km²
Time zone Asia/Jakarta
Lake Toba

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Kenrick / CC BY-SA 3.0

Lake Toba Essentials

Lake Toba, the world’s largest volcanic caldera, centers on Samosir Island and the Batak highlands. This selection highlights the 120-meter Sipiso-piso waterfall and panoramic viewpoints like Bukit Holbung and Menara Tele. Cultural heritage is represented by the Huta Bolon Simanindo museum, the traditional weaving village of Huta Raja, and the TB Silalahi Center. Visitors can explore ancient megalithic tombs at Tomok and the sacred seven-fountain spring of Aek Sipitu Dai, showcasing the region's unique geological and Batak history.

10 places

Lake Toba — Map

Lake Toba — Map

Climate & when to visit

Select a month

Typical weather in January

Fair
  • 21° (feels like 22°) · extremes 13°–23°
  • 15° at night
  • 22 rainy days
  • 1 sunny day
  • 5 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 9 · very high

Typical weather in February

Good
  • 21° (feels like 23°) · extremes 13°–23°
  • 15° at night
  • 18 rainy days
  • 2 sunny days
  • 6 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 10 · very high

Typical weather in March

Fair
  • 22° (feels like 23°) · extremes 13°–24°
  • 15° at night
  • 23 rainy days
  • 2 sunny days
  • 6 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 10 · very high

Typical weather in April

Fair
  • 22° (feels like 23°) · extremes 14°–24°
  • 15° at night
  • 25 rainy days
  • 1 sunny day
  • 5 hours of sunshine per day
  • Humid air
  • Calm winds
  • UV index 10 · very high

Typical weather in May

Fair
  • 21° (feels like 23°) · extremes 14°–23°
  • 15° at night
  • 22 rainy days
  • 3 sunny days
  • 6 hours of sunshine per day
  • Humid air
  • Calm winds
  • UV index 9 · very high

Typical weather in June

Good
  • 20° (feels like 22°) · extremes 13°–22°
  • 15° at night
  • 20 rainy days
  • 5 sunny days
  • 6 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 9 · very high

Typical weather in July

Fair
  • 20° (feels like 21°) · extremes 13°–22°
  • 14° at night
  • 21 rainy days
  • 3 sunny days
  • 6 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 9 · very high

Typical weather in August

Fair
  • 20° (feels like 21°) · extremes 13°–22°
  • 14° at night
  • 25 rainy days
  • 2 sunny days
  • 5 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 9 · very high

Typical weather in September

Fair
  • 21° (feels like 22°) · extremes 13°–23°
  • 15° at night
  • 25 rainy days
  • 1 sunny day
  • 5 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 9 · very high

Typical weather in October

Fair
  • 21° (feels like 22°) · extremes 13°–23°
  • 15° at night
  • 28 rainy days
  • 2 sunny days
  • 5 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 9 · very high

Typical weather in November

Fair
  • 20° (feels like 22°) · extremes 13°–23°
  • 15° at night
  • 28 rainy days
  • 0 sunny days
  • 4 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 8 · very high

Typical weather in December

Fair
  • 20° (feels like 22°) · extremes 13°–22°
  • 15° at night
  • 27 rainy days
  • 1 sunny day
  • 5 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 8 · very high

Climate data: NASA POWER (MERRA-2) · 1996–2025

Practical information

Currency
Indonesian Rupiah IDR Rp · Card payments · Commonly accepted
Emergency numbers
112
Electricity
Type C / Type F
230 V · 50 Hz
Languages
Indonesian
Tap water
Not safe to drink
Driving side
Left
Calling code
+62
Learn more

Tours & Activities

Lake Toba
Drive
Sipisopiso
Drive
Bukit Holbung

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Related destinations

North Sumatra

Other Destinations

Pulau Nias Samosir Island Medan Berastagi Perkebunan Bukit Lawang