Sintang in Winter
In winter (December, January and February), Sintang sees average daytime highs around 31°C and overnight lows near 24°C, with 771 mm of rain over about 78 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across winter, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 0% of the time across winter, and the air most often feels miserable.
Winter is Sintang's 2nd-best season to visit on our travel score. Sintang has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Sintang's year-round climate.
- Avg daytime high
- 31°C
- coldest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 771 mm
- 78 wet days
- Avg wind
- 4 km/h
- Travel score
- 2.6
- 2nd-best season
- Months
- Dec · Jan · Feb
Temperature in Sintang in Winter
Across winter, daytime highs hold fairly steady around 31°C.
A typical winter day in Sintang reaches about 31°C and drops to 24°C overnight. The warmest of the three months is December, the coolest December.
How winter really feels in Sintang
Once humidity and wind are folded in, winter brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Sintang weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 24° | 275 | 26.7 | 12 | 2.6 |
| Feb | 31° / 24° | 229 | 23 | 12 | 2.7 |
| Mar | 31° / 24° | 266 | 26.9 | 12 | 2.5 |
| Apr | 32° / 24° | 266 | 27.5 | 12 | 2.3 |
| May | 32° / 24° | 243 | 25 | 12 | 2.6 |
| Jun | 32° / 24° | 186 | 20 | 12 | 3.1 |
| Jul | 32° / 24° | 160 | 17.5 | 12 | 3.4 |
| Aug | 32° / 24° | 165 | 17.5 | 12 | 3.2 |
| Sep | 32° / 24° | 237 | 21.7 | 12 | 2.8 |
| Oct | 31° / 24° | 313 | 27.8 | 12 | 2.4 |
| Nov | 31° / 24° | 318 | 28.6 | 12 | 2.3 |
| Dec | 31° / 24° | 267 | 28.2 | 12 | 2.4 |
Cloud cover in Winter
The sky is clear or mostly clear about 0% of the time across winter.
Chance of precipitation in Winter
Sintang gets around 771 mm of rain over 78 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 4 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 12 hours in early December to 12 hours by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.4 kWh/m².
Is winter a good time to visit Sintang?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Sintang.
What to pack for Sintang in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Sintang sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 78 days see rain.
UV index in Sintang in Winter
Clear-sky midday UV across winter averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sintang peaks around February 20 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 11 (extreme).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 16 | 15 | 15 | 13 | 11 | 11 | 13 | 13 | 14 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 16 | Extreme |
| Mar | 15 | Extreme |
| Apr | 15 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 14 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Sintang in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Sintang is worst in September — around 61 µg/m³ PM2.5 (unhealthy), about 4.7× the cleanest month (January, 13 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 13 | 14 | 16 | 16 | 16 | 15 | 21 | 43 | 61 | 27 | 15 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Unhealthy | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 14 | Moderate |
| Mar | 16 | Moderate |
| Apr | 16 | Moderate |
| May | 16 | Moderate |
| Jun | 15 | Moderate |
| Jul | 21 | Moderate |
| Aug | 43 | Poor |
| Sep | 61 | Unhealthy |
| Oct | 27 | Moderate |
| Nov | 15 | Moderate |
| Dec | 14 | Moderate |
Where is Sintang?
Sintang sits at 0.1°N, 111.5°E, 24 m above sea level, in Indonesia. The nearest listed city is Engkilili, 121 km away.
Topography around Sintang
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sintang.
Within 3 km, the terrain around Sintang has only modest variations in elevation — a maximum elevation change of 39 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 814 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,640 m.
The land around Sintang is covered by trees (53%) and artificial surfaces (23%) within 3 km, trees (90%) within 16 km, and trees (98%) within 80 km.
Indonesia travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 29% of US
- price level, 2025
- GDP per capita
- $5,060
- 2025
- Happiness
- 5.6 / 10
- World Happiness, 2025
- Safe drinking water
- 30%
- of population, 2024
- Homicide rate
- 0.3
- per 100k, 2022
- Road deaths
- 11.3
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 471
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sintang (0.0667°, 111.5°, elevation 24 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.