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Weather in Sumatra - 14-day forecast

Detailed weather forecast for Sumatra, Indonesia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Sumatra
today🌧️ 30°💧 4.8 mm
Thu🌧️ 27°💧 11.7 mm
Fri🌧️ 32°💧 0.3 mm
Sat🌧️ 32°💧 0.3 mm
Sun🌧️ 33°💧 0.8 mm
Mon☁️ 31°💧 1 mm
Tue☁️ 28°💧 0.1 mm
Wed☁️ 32°💧 0.4 mm

14-day forecast - Sumatra

WEATHER FORECAST · 15 DAYSSumatraIndonesia · 16-day forecast30°🌧️Todaynight 23° · wind 2 m/s · humidity 61%🌅 06:17 🌇 18:22 · daylight 12 h 05 min30°23°27°23°32°23°32°23°33°23°31°23°28°23°32°23°31°24°30°24°31°24°34°23°34°24°34°24°33°24°RAIN (MM)4.811.70.30.30.810.10.41.70.30.60.80.12.13.8Wed8.07Thu9.07Fri10.07Sat11.07Sun12.07Mon13.07Tue14.07Wed15.07Thu16.07Fri17.07Sat18.07Sun19.07Mon20.07Tue21.07Wed22.07AVERAGE31°MAX.34° (19.07)MIN.27° (9.07)TOTAL RAIN28.7 mmSUNNY DAYS0world-prices.com · updated 2026-07-08

Day-by-day forecast for Sumatra

Wednesday8 July 2026
🌧️30°moderate rain
sunrise 06:17 · sunset 18:22 · night 23° · evening 25° · rain 4.84 mm · humidity 61% · wind 2 m/s · clouds 31%
Thursday9 July 2026
🌧️27°moderate rain
sunrise 06:17 · sunset 18:22 · night 23° · evening 26° · rain 11.69 mm · humidity 90% · wind 1 m/s · clouds 94%
Friday10 July 2026
🌧️32°light rain
sunrise 06:17 · sunset 18:23 · night 23° · evening 26° · rain 0.25 mm · humidity 52% · wind 2 m/s · clouds 37%
Saturday11 July 2026
🌧️32°light rain
sunrise 06:17 · sunset 18:23 · night 23° · evening 25° · rain 0.29 mm · humidity 47% · wind 2 m/s · clouds 92%
Sunday12 July 2026
🌧️33°light rain
sunrise 06:17 · sunset 18:23 · night 23° · evening 24° · rain 0.75 mm · humidity 46% · wind 1 m/s · clouds 36%
Monday13 July 2026
☁️31°overcast clouds
sunrise 06:18 · sunset 18:23 · night 23° · evening 25° · rain 0.99 mm · humidity 52% · wind 2 m/s · clouds 95%
Tuesday14 July 2026
☁️28°overcast clouds
sunrise 06:18 · sunset 18:23 · night 23° · evening 24° · rain 0.12 mm · humidity 63% · wind 2 m/s · clouds 99%
Wednesday15 July 2026
☁️32°overcast clouds
sunrise 06:18 · sunset 18:23 · night 23° · evening 24° · rain 0.36 mm · humidity 46% · wind 2 m/s · clouds 100%
Thursday16 July 2026
☁️31°overcast clouds
sunrise 06:18 · sunset 18:23 · night 24° · evening 26° · rain 1.68 mm · humidity 52% · wind 2 m/s · clouds 100%
Friday17 July 2026
☁️30°overcast clouds
sunrise 06:18 · sunset 18:23 · night 24° · evening 25° · rain 0.27 mm · humidity 56% · wind 2 m/s · clouds 100%
Saturday18 July 2026
🌧️31°light rain
sunrise 06:18 · sunset 18:23 · night 24° · evening 25° · rain 0.63 mm · humidity 55% · wind 1 m/s · clouds 99%
Sunday19 July 2026
🌧️34°light rain
sunrise 06:18 · sunset 18:24 · night 23° · evening 24° · rain 0.75 mm · humidity 45% · wind 2 m/s · clouds 68%
Monday20 July 2026
☁️34°overcast clouds
sunrise 06:18 · sunset 18:24 · night 24° · evening 27° · rain 0.12 mm · humidity 45% · wind 2 m/s · clouds 100%
Tuesday21 July 2026
☁️34°overcast clouds
sunrise 06:18 · sunset 18:24 · night 24° · evening 26° · rain 2.07 mm · humidity 43% · wind 2 m/s · clouds 90%
Wednesday22 July 2026
☁️33°overcast clouds
sunrise 06:18 · sunset 18:24 · night 24° · evening 26° · rain 3.84 mm · humidity 45% · wind 2 m/s · clouds 100%
Thursday23 July 2026
🌧️34°light rain
sunrise 06:18 · sunset 18:24 · night 24° · evening 26° · rain 0.18 mm · humidity 42% · wind 2 m/s · clouds 100%

☀️ UV index in Sumatra - is it safe to sunbathe?

☀️ UV INDEX · 16-DAY FORECASTSumatra03681111+8UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.⏱ Unprotected fair skin may burn in about 25 min8Wed8.078Thu9.078Fri10.078Sat11.078Sun12.077Mon13.077Tue14.077Wed15.077Thu16.076Fri17.077Sat18.078Sun19.077Mon20.077Tue21.077Wed22.076Thu23.070-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-07-08
Today the UV index in Sumatra is 8 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Air quality and smog in Sumatra

CityPM2.5 (µg/m³)PM10 (µg/m³)Air quality
Dzakarta117.6118.5very poor
Bandar Lampung22.326.1good
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-08, 08:00).

🎉 Public holidays in Sumatra - when are the long weekends?

Next long weekend in Sumatra: Independence Day (17 August, Monday) - Saturday–Monday (3 days off).
17 AugustMonday
Independence Day
🎈 long weekend
25 DecemberFriday
Christmas Day
🎈 long weekend
1 JanuaryFriday 2027
New Year's Day
🎈 long weekend
26 MarchFriday 2027
Good Friday
🎈 long weekend
28 MarchSunday 2027
Easter Sunday
falls on a weekend
1 MaySaturday 2027
Labour Day
falls on a weekend
6 MayThursday 2027
Ascension Day
🎈 long weekend + bridge day
1 JuneTuesday 2027
Pancasila Day
🎈 long weekend + bridge day
17 AugustTuesday 2027
Independence Day
🎈 long weekend + bridge day
25 DecemberSaturday 2027
Christmas Day
falls on a weekend
Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave.

Nearby places

MalaccaSeremban

FAQ - Sumatra weather

What is the weather like in Sumatra today?
Today it is about 30° during the day and 23° at night, moderate rain.
How far ahead can I check the forecast for Sumatra?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.