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North Sumatra

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North Sumatra Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

North Sumatra year round climate

  • Spring (March-May): Average 26.1-26.5°C, hot and dry climate with low rainfall. Common activities: Outdoor adventures, visiting cultural heritage sites. Recommended clothing: Light and breathable clothing, hat, sun protection clothing.
  • Summer (June-August): Average 26.1-26.9°C, hot and dry climate with very low rainfall. Common activities: Water activities, hiking. Recommended clothing: Light and breathable clothing, hat, sun protection clothing.
  • Autumn (September-November): Average 25.2-25.8°C, relatively comfortable climate with moderate rainfall. Common activities: Exploring natural landscapes, visiting local markets. Recommended clothing: Light long-sleeved clothing, comfortable shoes.
  • Winter (December-February): Average 25.0-26.0°C, warm climate with moderate to low rainfall. Common activities: Visiting temples, enjoying local cuisine. Recommended clothing: Light long-sleeved clothing or light jacket.

North Sumatra climatological average

Annual average temperature: approx. 25.9°C / Annual rainfall: approx. 121 mm / Summer humidity: 60%–70% / Rainiest month: January

North Sumatra monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
25°C
16.2
February
26°C
7.3
March
26.2°C
10.6
April
26.5°C
11
May
26.4°C
6.6
June
26.1°C
7.6
July
26.9°C
3.8
August
25.4°C
11.9
September
25.8°C
11.8
October
25.8°C
8.8
November
25.2°C
15.3
December
25.1°C
10.5

North Sumatra weather for the next seven days

3/17
Tuesday
Moderate rain
26.1°C/15.1°C
3/18
Wednesday
Moderate rain
26.2°C/15.6°C
3/19
Thursday
Heavy rain
25.2°C/15.5°C
3/20
Friday
Moderate rain
27°C/15.2°C
3/21
Saturday
Patchy rain nearby
27.6°C/15.5°C
3/22
Sunday
Patchy rain nearby
27.4°C/15.4°C
3/23
Monday
Patchy rain nearby
27.7°C/15.8°C

North Sumatra Frequently Asked Questions and Useful Information for Travel

Is North Sumatra safe for travelers?

Safety in North Sumatra is generally very good, but there are some natural and health risks that travelers should be aware of. Following local advice and taking necessary precautions will ensure a safe and enjoyable trip.

How many days are recommended for North Sumatra?

In our experience, allow at least 7-10 days to make the most of your North Sumatra itinerary. This will give you enough time to hike a volcano, go jungle trekking in the rainforest, and visit a huge volcanic lake. Any less than this and you'll be rushing your visit.

Is North Sumatra worth visiting for tourists?

When you travel to North Sumatra, you'll witness exquisite rainforests packed with fabulous animals, explore pristine beaches, coral reefs, surf breaks, and volcanoes, and be welcomed by the smiliest, friendliest people on the planet. What's not to love? North Sumatra has it all.

How can I get around North Sumatra?

Getting around North Sumatra can be done via ferry connecting to offshore islands, by airplane for long distances, or by renting a car or scooter for local exploration. Each option offers a unique way to experience the diverse landscapes.

What are the main attractions in North Sumatra?

North Sumatra boasts incredible attractions such as the vast volcanic Lake Toba, the lush rainforests of Gunung Leuser National Park home to orangutans, and the cultural heartland around Bukit Lawang for jungle trekking adventures. Exploring these offers a true taste of the region's natural beauty and wildlife.