North Sumatra weather
Today's sky, the hour-by-hour rain chance and the 16-day forecast for North Sumatra, Indonesia. Like most weather services, we show North Sumatra at one spot: Medan, its largest city. At 4:45 AM local time it was partly cloudy and 23°C (74°F). Mostly light, on-and-off rain; heavier around 5 PM, 8 PM (6.3 mm total). Best months for weather: Jun, Jan–Apr.
Current conditions
- Clouds
- 65%
- Chance of rain
- 33%
- Rain
- 0.2 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 5 PM, 8 PM (6.3 mm total)
Daily Forecast
Best Time to Visit
Peak season Jun, Jan–AprOff season Sep–Dec
About Medan weather
Is it raining in Medan right now?
No. It’s partly cloudy and 23° right now. Mostly light, on-and-off rain; heavier around 5 PM, 8 PM (6.3 mm total).
What’s the weather like in Medan this week?
Over the next 7 days, expect highs of 30–31° and lows of 22–23°. Rain is likely on 7 of 7 days (Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday). The driest day looks like Monday.
Has it been raining in Medan lately?
In the past 7 days, Medan had 7 rainy days and 170.2 mm of rain in total.
What should I pack for Medan?
For the coming week, bring an umbrella or rain jacket, light, breathable clothes and sunscreen.
North Sumatra weather by month
When is the best time to visit North Sumatra?
Based on weather alone, the best time to visit North Sumatra is Jun, Jan–Apr, according to NASA's 2001–2025 climate averages. Sep–Dec tends to be the least pleasant. Average highs run from 28°C (82°F) in December to 30°C (85°F) in May.
What is the rainiest month in North Sumatra?
October is the wettest month, with about 310 mm (12.2 in) of rain on average. February is the driest, with about 90 mm (3.5 in).
What is the hottest month in North Sumatra?
May is the warmest, with average highs of 30°C (85°F) and lows of 24°C (75°F). December is the coolest, with highs of 28°C (82°F) and lows of 23°C (73°F).
North Sumatra weather month by month
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis for Medan), forecast and current conditions from Open-Meteo. Page updated . How we rate months
Compare places in North Sumatra
Weather can differ a lot within North Sumatra: coasts, hills and mountains each have their own climate.
| Place | Best months | Rainy months | Highs | Rain a year |
|---|---|---|---|---|
| Medan | Jun, Jan–Apr | May, Jul–Dec | 28–30°C | 2,276 mm |
| Percut | Jun, Jan–Apr | May, Jul–Dec | 28–30°C | 2,276 mm |
| Binjai | Jun, Jan–Apr | May, Jul–Dec | 28–30°C | 2,276 mm |
| Pematangsiantar | Jun, Jan–Apr | Mar–Jan | 27–29°C | 2,725 mm |
| Padangsidempuan | Jun | Year-round | 26–27°C | 4,345 mm |
| Tanjungbalai | Feb, Jun–Jul | Mar–Jan | 28–29°C | 2,628 mm |
| Sunggal | Jun, Jan–Apr | May, Jul–Dec | 28–30°C | 2,276 mm |
| Perbaungan | Jun, Jan–Apr | May, Jul–Dec | 28–30°C | 2,276 mm |
| Kisaran | Jun, Jan–Apr | Mar–Jan | 27–29°C | 2,725 mm |
| Gunungsitoli | Feb, May–Jul | Year-round | 28–29°C | 2,935 mm |
| Tebingtinggi | Jun, Jan–Apr | May, Jul–Dec | 28–30°C | 2,333 mm |
| Rantauprapat | Feb, Jun | Year-round | 28–29°C | 3,881 mm |
Cities and towns in North Sumatra
- Medan
- Percut
- Binjai
- Pematangsiantar
- Padangsidempuan
- Tanjungbalai
- Sunggal
- Perbaungan
- Kisaran
- Gunungsitoli
- Tebingtinggi
- Rantauprapat
- Belawan
- Sibolga
- Kabanjahe
- Sidikalang
- Labuhan Deli
- Berastagi
- Pekan Bahapal
- Tarutung
- Pangururan
- Bandar
- Deli Tua
- Stabat
- Teluk Dalam
- Pangkalan Brandan
- Teluk Nibung
- Tanjungtiram
- Lahewa
- Barus
- Paropo
- Tongging