Weather forecast for tomorrowSiantan, Indonesia
Weather forecast for tomorrow
Sunday 15. Nov 2026
- 30°C
- 25°C
Thunderstorms
- Precip. probability: 63%
- Precipitation: 14mm
- Wind: 12km/hSW 231°
- Humidity: 85%
- UV index: 7
- Sunrise: 05:24 WIB
- Sunset: 17:30 WIB
- details ▼
On Sunday, in Siantan, unstable skies bring the chance of thunderstorms.
With a high probability, moderate precipitation is predicted for tomorrow. Day and night temperatures will subtly differ, ranging from a peak of a humid 30°C to a low of a warm 25°C.
The maximum heat index, which factors the actual air temperature with the relative humidity, is computed to be a very hot 39°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The highest temperature tomorrow will align with the usual November peak of 31.2°C.
Sunrise will be at 05:24 and sunset at 17:30; tomorrow's daylight will last for 12h and 7min.
With a high probability, moderate precipitation is predicted for tomorrow. Day and night temperatures will subtly differ, ranging from a peak of a humid 30°C to a low of a warm 25°C.
The maximum heat index, which factors the actual air temperature with the relative humidity, is computed to be a very hot 39°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The highest temperature tomorrow will align with the usual November peak of 31.2°C.
Sunrise will be at 05:24 and sunset at 17:30; tomorrow's daylight will last for 12h and 7min.
Hourly overview
Hourly temperatures
Warmest hour: 12h 36°C.
Coldest period: 3h - 6h 29°C.
Coldest period: 3h - 6h 29°C.
Chance of precipitation
Highest chance: 15h 63%.
Hourly weather forecast
- 0h
- 26°C
- Feels like:30°C
Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 4km/hWNW 297°
- Humidity: 94%
- Pressure: 1011mbar
- Visibility: 7km
- UV index: 0
- details ▼
- 2h
- 25°C
- Feels like:29°C
Showers
- Precip. probability: 55%
- Precipitation: 1mm
- Wind: 3km/hNNW 336°
- Humidity: 95%
- Pressure: 1010mbar
- Visibility: 3km
- UV index: 0
- details ▼
- 4h
- 25°C
- Feels like:29°C
Cloudy
- Precip. probability: 20%
- Precipitation: 0mm
- Wind: 3km/hSE 125°
- Humidity: 97%
- Pressure: 1010mbar
- Visibility: 7km
- UV index: 0
- details ▼
Sunrise: 05:24
- 6h
- 25°C
- Feels like:29°C
Cloudy
- Precip. probability: 21%
- Precipitation: 0mm
- Wind: 3km/hE 90°
- Humidity: 96%
- Pressure: 1011mbar
- Visibility: 5km
- UV index: 0
- details ▼
- 8h
- 27°C
- Feels like:32°C
Showers
- Precip. probability: 50%
- Precipitation: 2mm
- Wind: 5km/hSE 135°
- Humidity: 89%
- Pressure: 1012mbar
- Visibility: 11km
- UV index: 3
- details ▼
- 10h
- 29°C
- Feels like:35°C
Scattered Thunderstorms
- Precip. probability: 43%
- Precipitation: 1mm
- Wind: 6km/hSE 143°
- Humidity: 82%
- Pressure: 1011mbar
- Visibility: 11km
- UV index: 6
- details ▼
- 12h
- 30°C
- Feels like:36°C
Thunderstorms
- Precip. probability: 62%
- Precipitation: 2mm
- Wind: 9km/hW 259°
- Humidity: 80%
- Pressure: 1009mbar
- Visibility: 10km
- UV index: 7
- details ▼
- 14h
- 29°C
- Feels like:35°C
Thunderstorms
- Precip. probability: 63%
- Precipitation: 1mm
- Wind: 10km/hW 273°
- Humidity: 82%
- Pressure: 1008mbar
- Visibility: 10km
- UV index: 4
- details ▼
- 16h
- 28°C
- Feels like:33°C
Showers
- Precip. probability: 47%
- Precipitation: 1mm
- Wind: 10km/hW 266°
- Humidity: 85%
- Pressure: 1008mbar
- Visibility: 11km
- UV index: 1
- details ▼
Sunset: 17:30
- 18h
- 27°C
- Feels like:32°C
Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 6km/hW 261°
- Humidity: 88%
- Pressure: 1009mbar
- Visibility: 11km
- UV index: 0
- details ▼
- 20h
- 27°C
- Feels like:31°C
Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 5km/hWNW 295°
- Humidity: 90%
- Pressure: 1011mbar
- Visibility: 10km
- UV index: 0
- details ▼
- 22h
- 26°C
- Feels like:31°C
Showers
- Precip. probability: 37%
- Precipitation: 1mm
- Wind: 3km/hW 279°
- Humidity: 91%
- Pressure: 1011mbar
- Visibility: 8km
- UV index: 0
- details ▼
Tomorrow, a combination of dull, storm-filled and showery weather is anticipated.
Rain is predicted from 1h to 3h, and from 8h to 17h, 22h and at 23h. The most intense rain will be falling at 8h, 12h, 13h and 17h.
The temperature will be between a minimum of 25°C and a maximum of 30°C. The feels-like temperature will be between the lowest temperature of 29°C and the highest temperature of 36°C. The hottest part of the day will be around noon.
The highest temperature tomorrow will be in line with November's typical maximum. The lowest temperature is also alike with November's typical minimum of 24.2°C.
Rain is predicted from 1h to 3h, and from 8h to 17h, 22h and at 23h. The most intense rain will be falling at 8h, 12h, 13h and 17h.
The temperature will be between a minimum of 25°C and a maximum of 30°C. The feels-like temperature will be between the lowest temperature of 29°C and the highest temperature of 36°C. The hottest part of the day will be around noon.
The highest temperature tomorrow will be in line with November's typical maximum. The lowest temperature is also alike with November's typical minimum of 24.2°C.
Updated: Nov 13, 2026 @ 23:34:14 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Siantan, storm clouds are expected to develop.
Moderate precipitation of 14mm is expected in Siantan. The chance of rainfall is 63%.
Tomorrow, the highest temperature will be 30°C, while the lowest temperature will be 25°C. The maximum heat index, which integrates air moisture with ambient temperature, is appraised at 39°C.
Tomorrow, the highest temperature will be in line with the average maximum temperature in November. The lowest temperature tomorrow will be also in line with the average low temperature.
Tomorrow, the highest temperature will be in line with the average maximum temperature in November. The lowest temperature tomorrow will be also in line with the average low temperature.
On Sunday, in Siantan, sunrise will be at 05:24 and sunset at 17:30 (WIB).
Tomorrow, the daylight will last for 12h and 7min.





