Weather forecast for 10 daysSiantan, Indonesia

Weather forecast for the weekend

Saturday 31. Oct 2026

  • 29°C
  • 24°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 47%
  • Precipitation: 6mm
  • Wind: 9km/hESE 114°
  • Humidity: 82%
  • UV index: 9
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
Tomorrow, there will be scattered thunderstorms throughout the day.
The chance of rainfall is low, and light precipitation is forecasted. Temperature is expected to reach a high of a moderately hot 29°C during the day, slightly dropping to a low of a warm 24°C at night.
The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be a torrid 35°C. Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow's peak is anticipated to be moderately lower than the regular high for October at 31.8°C.
Sunrise will be at 05:23 and sunset at 17:30; tomorrow's daylight will last for 12h and 7min.

Sunday 1. Nov 2026

  • 33°C
  • 25°C
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 37%
  • Precipitation: 2mm
  • Wind: 9km/hNNE 20°
  • Humidity: 73%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
On Sunday, 1st of November, isolated thunderstorm cells could develop in the afternoon.
Minimal precipitation is forecasted. The temperature will fluctuate from a high of a blazing 33°C to a low of a warm 25°C.
October's typical peak of 31.8°C is forecasted to be mirrored in the day’s high.
Sunrise will be at 05:23 and sunset at 17:29; the daylight will last for 12h and 7min.

10-day overview

Daily temperatures

Warmest day: Sunday 33°C.
Coldest day: tomorrow 29°C.

Chance of precipitation

Highest chance: Tuesday 75%.

Long-term weather forecast

  • Friday
  • 30. Oct 2026
  • min.
  • 24°C
Showers
Showers
  • Precip. probability: 58%
  • Precipitation: 2mm
  • Wind: 6km/hSE 129°
  • Humidity: 93%
  • UV index: 0
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
  • Saturday
  • 31. Oct 2026
  • 29°C
  • 24°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 47%
  • Precipitation: 6mm
  • Wind: 9km/hESE 114°
  • Humidity: 82%
  • UV index: 9
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
  • Sunday
  • 1. Nov 2026
  • 33°C
  • 25°C
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 37%
  • Precipitation: 2mm
  • Wind: 9km/hNNE 20°
  • Humidity: 73%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Monday
  • 2. Nov 2026
  • 32°C
  • 24°C
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 72%
  • Precipitation: 9mm
  • Wind: 10km/hSSW 206°
  • Humidity: 76%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Tuesday
  • 3. Nov 2026
  • 31°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 75%
  • Precipitation: 11mm
  • Wind: 8km/hE 90°
  • Humidity: 79%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Wednesday
  • 4. Nov 2026
  • 31°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 66%
  • Precipitation: 17mm
  • Wind: 9km/hNNE 12°
  • Humidity: 80%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Thursday
  • 5. Nov 2026
  • 31°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 70%
  • Precipitation: 16mm
  • Wind: 10km/hWSW 254°
  • Humidity: 81%
  • UV index: 10
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Friday
  • 6. Nov 2026
  • 30°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 68%
  • Precipitation: 11mm
  • Wind: 9km/hWSW 258°
  • Humidity: 82%
  • UV index: 10
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
  • Saturday
  • 7. Nov 2026
  • 31°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 60%
  • Precipitation: 10mm
  • Wind: 9km/hNNW 327°
  • Humidity: 79%
  • UV index: 10
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
  • Sunday
  • 8. Nov 2026
  • 31°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 60%
  • Precipitation: 13mm
  • Wind: 9km/hW 267°
  • Humidity: 79%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
Primarily unstable and occasionally wet weather is predicted.
Rainfall is anticipated day-to-day, with daily precipitation varying from a minimal 2mm to a maximum of 17mm.
In the coming days, the maximum temperature will vary between 29°C and 33°C, while changes in the overnight low will be barely noticeable, as the overnight low will fall between 24°C and 25°C.
With the highest temperature of 33°C, Sunday will be the hottest day; with the highest temperature of 29°C, Saturday will be the coldest day.
Including the humidity's impact, the maximum feel-like temperature may increase vastly and range between a sizzling 35°C and a searing 45°C.
Updated: Oct 30, 2026 @ 13:16:13 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, in Siantan, scattered thunderstorms are forecasted, with heavy rainfall at times.

Light precipitation of 6mm is expected. The likelihood of rainfall is 47%.

Tomorrow, the highest temperature in Siantan, Indonesia, will be 29°C, while the lowest temperature will be 24°C. The maximum heat index, which measures the combined effect of heat and moisture, is calculated to be 35°C.
Tomorrow, the maximum temperature will be moderately lower than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Saturday, in Siantan, sunrise will be at 05:23 and sunset at 17:30 (WIB).

In Siantan, the length of the day tomorrow will be 12h and 7min.

On Sunday, limited storm activity is forecasted, with occasional thunder.

On Sunday, there is a low chance of minimal precipitation in Siantan.

On Sunday, the maximum temperature will be 33°C, while the minimum temperature will be 25°C.