Weather forecast for tomorrowBagansiapiapi, Indonesia

Weather forecast for tomorrow

Monday 19. Oct 2026

  • 31°C
  • 25°C
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 40%
  • Precipitation: 16mm
  • Wind: 9km/hSSE 162°
  • Humidity: 78%
  • UV index: 11
  • Sunrise: 05:59 WIB
  • Sunset: 18:03 WIB
  • ▼
Tomorrow, on Monday, 19th of October, thunderstorms are expected in the afternoon.
The chance of rain is low. However, anticipated precipitation will be moderate. The temperature is forecasted to oscillate between a maximum of a hot 31°C and a minimum of a warm 25°C.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is assessed at a blisteringly hot 40°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.
Expected temperatures are trending relatively lower than October's climate norm of 33.1°C.
Sunrise will be at 05:59 and sunset at 18:03; tomorrow's daylight will last for 12h and 4min.

Hourly overview

Hourly temperatures

Warmest period: 12h - 15h 38°C.
Coldest period: 3h - 6h 30°C.

Chance of precipitation

Highest chance: 21h 56%.

Hourly weather forecast

  • 0h
  • 27°C
  • Feels like:
    31°C
Showers
Showers
  • Precip. probability: 55%
  • Precipitation: 1mm
  • Wind: 6km/hSW 232°
  • Humidity: 91%
  • Pressure: 1012mbar
  • Visibility: 7km
  • UV index: 0
  • ▼
  • 2h
  • 26°C
  • Feels like:
    30°C
Cloudy
Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 8km/hSW 232°
  • Humidity: 93%
  • Pressure: 1010mbar
  • Visibility: 7km
  • UV index: 0
  • ▼
  • 4h
  • 26°C
  • Feels like:
    30°C
Cloudy
Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 6km/hSW 229°
  • Humidity: 93%
  • Pressure: 1010mbar
  • Visibility: 7km
  • UV index: 0
  • ▼
Sunrise: 05:59
  • 6h
  • 26°C
  • Feels like:
    30°C
Cloudy
Cloudy
  • Precip. probability: 12%
  • Precipitation: 0mm
  • Wind: 6km/hSSW 204°
  • Humidity: 94%
  • Pressure: 1010mbar
  • Visibility: 7km
  • UV index: 0
  • ▼
  • 8h
  • 27°C
  • Feels like:
    31°C
Cloudy
Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 6km/hS 175°
  • Humidity: 91%
  • Pressure: 1012mbar
  • Visibility: 12km
  • UV index: 2
  • ▼
  • 10h
  • 30°C
  • Feels like:
    36°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0mm
  • Wind: 6km/hSSW 195°
  • Humidity: 77%
  • Pressure: 1012mbar
  • Visibility: 14km
  • UV index: 9
  • ▼
  • 12h
  • 31°C
  • Feels like:
    38°C
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 31%
  • Precipitation: 1mm
  • Wind: 7km/hS 180°
  • Humidity: 71%
  • Pressure: 1010mbar
  • Visibility: 14km
  • UV index: 11
  • ▼
  • 14h
  • 31°C
  • Feels like:
    38°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 38%
  • Precipitation: 2mm
  • Wind: 9km/hNNE 16°
  • Humidity: 72%
  • Pressure: 1008mbar
  • Visibility: 11km
  • UV index: 9
  • ▼
  • 16h
  • 31°C
  • Feels like:
    38°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 9km/hNNE 16°
  • Humidity: 74%
  • Pressure: 1007mbar
  • Visibility: 14km
  • UV index: 3
  • ▼
  • 18h
  • 29°C
  • Feels like:
    35°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 40%
  • Precipitation: 1mm
  • Wind: 8km/hN 11°
  • Humidity: 81%
  • Pressure: 1009mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
Sunset: 18:03
  • 20h
  • 28°C
  • Feels like:
    34°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 52%
  • Precipitation: 2mm
  • Wind: 6km/hNNW 338°
  • Humidity: 86%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 22h
  • 27°C
  • Feels like:
    32°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 58%
  • Precipitation: 2mm
  • Wind: 7km/hWSW 254°
  • Humidity: 89%
  • Pressure: 1012mbar
  • Visibility: 9km
  • UV index: 0
  • ▼
Tomorrow, a combination of cloud-filled, turbulent and rain-filled weather is expected.
Rain is forecasted from midnight, and from 12h to 15h, and from 17h to 23h. The most intense rain will be falling at 13h and 21h.
The temperature will vary between a minimum of 26°C and a maximum of 31°C. The feels-like temperature will be between a minimum of 30°C and a maximum of 38°C. The hottest part of the day will be from 12h to 16h.
The high will be relatively lower than the normal maximum of 33.1°C for October. The night temperature will be also consistent with the standard October low of 23.1°C.
Updated: Oct 18, 2026 @ 03:42:46 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, in Bagansiapiapi, showers and thunder will dominate the later part of the day.

Moderate precipitation of 16mm is forecasted. The chance of rainfall is 40%.

Tomorrow, the highest temperature will be 31°C, while the lowest temperature will be 25°C. The maximum heat index, which combines relative humidity and air temperature, is estimated at 40°C.
The highest temperature will be relatively lower than the average maximum of 33.1°C in October. The lowest temperature will be in line with the average low of 23.1°C.

On Monday, in Bagansiapiapi, sunrise will be at 05:59 and sunset at 18:03 (WIB).

Tomorrow, the daylight will last for 12h and 4min.