Weather forecast for 10 daysSiantan, Indonesia

Weather forecast for the weekend

Saturday 31. Oct 2026

  • 30°C
  • 24°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 69%
  • Precipitation: 3mm
  • Wind: 9km/hE 97°
  • Humidity: 79%
  • UV index: 7
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
Today, on Saturday, 31st of October, there will be scattered thunderstorms, which could cause some localized disruption.
Minimal precipitation is forecasted. The temperature will vary between a maximum of a hot 30°C and a minimum of a warm 24°C.
The maximum heat index, which measures the combined effect of heat and moisture, is computed to be a fiery hot 37°C. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature will be in line with October's average maximum of 31.8°C.
Sunrise was at 05:23 and sunset will be at 17:30; the daylight will last for 12h and 7min.

Sunday 1. Nov 2026

  • 33°C
  • 25°C
PM Showers
PM Showers
  • Precip. probability: 45%
  • Precipitation: 3mm
  • Wind: 10km/hNE 36°
  • Humidity: 73%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
On Sunday, in Siantan, a chance of afternoon showers exists, so it may be a good idea to keep an umbrella handy.
Minimal precipitation is forecasted for tomorrow. The temperature is anticipated to oscillate between a maximum of a humid 33°C and a minimum of a temperate 25°C.
The maximum heat index, which combines relative humidity and air temperature, is appraised at a dangerously hot 45°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 high is expected to coincide with the typical October maximum of 31.8°C.
Sunrise will be at 05:23 and sunset at 17:29; tomorrow's daylight will last for 12h and 7min.

10-day overview

Daily temperatures

Warmest day: tomorrow 33°C.
Minimum temperature: 30°C.

Chance of precipitation

Highest chance: Wednesday 71%.

Long-term weather forecast

  • Saturday
  • 31. Oct 2026
  • 30°C
  • 24°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 69%
  • Precipitation: 3mm
  • Wind: 9km/hE 97°
  • Humidity: 79%
  • UV index: 7
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
  • Sunday
  • 1. Nov 2026
  • 33°C
  • 25°C
PM Showers
PM Showers
  • Precip. probability: 45%
  • Precipitation: 3mm
  • Wind: 10km/hNE 36°
  • Humidity: 73%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Monday
  • 2. Nov 2026
  • 31°C
  • 24°C
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 62%
  • Precipitation: 6mm
  • Wind: 10km/hS 190°
  • Humidity: 78%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Tuesday
  • 3. Nov 2026
  • 32°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 69%
  • Precipitation: 17mm
  • Wind: 8km/hSE 138°
  • Humidity: 78%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Wednesday
  • 4. Nov 2026
  • 30°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 71%
  • Precipitation: 14mm
  • Wind: 8km/hNNE 24°
  • Humidity: 81%
  • UV index: 10
  • Sunrise: 05:23 WIB
  • Sunset: 17:29 WIB
  • ▼
  • Thursday
  • 5. Nov 2026
  • 31°C
  • 24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 68%
  • Precipitation: 30mm
  • Wind: 10km/hWSW 256°
  • Humidity: 81%
  • UV index: 11
  • 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/hW 267°
  • 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: 64%
  • Precipitation: 10mm
  • Wind: 9km/hN 349°
  • Humidity: 80%
  • 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: 12mm
  • Wind: 9km/hW 271°
  • Humidity: 79%
  • UV index: 11
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
  • Monday
  • 9. Nov 2026
  • 30°C
  • 25°C
Thunderstorms
Thunderstorms
  • Precip. probability: 60%
  • Precipitation: 16mm
  • Wind: 10km/hSW 220°
  • Humidity: 81%
  • UV index: 10
  • Sunrise: 05:23 WIB
  • Sunset: 17:30 WIB
  • ▼
Looking ahead to the next ten days, primarily storm-filled and occasionally rainy weather is forecasted.
Rainfall is predicted day-to-day, with daily precipitation varying from a minimal 3mm to a maximum of 30mm.
Temperature variation will be minimal in the forecast period ahead. Highs will range from 30°C to 33°C, while the lowest nightly temperature differences will be also negligible, as the overnight low will fall between 24°C and 25°C.
The hottest day will be Sunday, with a maximum of 33°C; the coldest days will be Saturday, Wednesday, Friday and next Monday, with a maximum of 30°C.
Combining with the humidity, the maximum feel-like temperature may increase vastly and range between a very hot 37°C and a burning hot 45°C.
Updated: Oct 31, 2026 @ 04:32:08 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, in Siantan, there will be scattered thunderstorms, which could cause some localized disruption.

There is a high likelihood of rainfall, but precipitation will be minimal.

Today, the highest temperature will be 30°C, while the lowest temperature will be 24°C. The maximum heat index, which integrates air moisture with ambient temperature, is evaluated at 37°C.
Today, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature today will be also in line with the average low temperature.

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

Today, the daylight will last for 12h and 7min.

On Sunday, on-and-off showers may develop in the afternoon.

Tomorrow, there is a low probability of minimal rainfall in Siantan.

Tomorrow, the highest temperature will be 33°C, while the lowest temperature will be 25°C. The maximum heat index, which factors the actual air temperature with the relative humidity, is computed to be 45°C.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. Tomorrow, the lowest temperature will be also in line with the average low temperature.

On Sunday, in Siantan, sunrise will be at 05:23 and sunset at 17:29 (WIB).

Tomorrow, the daylight will last for 12h and 7min.