Sintang weather in May

In May, Sintang sees average daytime highs of 32°C and overnight lows near 24°C, with 243 mm of rain across 25 wet days and about 12 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 5% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 hours at the start of May to 12 hours by month's end. Set against the rest of the year, May is Sintang's 4th-clearest and 11th-windiest month. For the whole year in context, see Sintang's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
24°
12th coldest
Rainfall
243 mm
25 wet days
Daylight
12 hours
5:30 AM – 5:30 PM
Cloud cover
81%
4th clearest
Wind
3 km/h
11th windiest
Solar energy
4.63 kWh/m²
Travel score
2.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Sintang reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How May really feels in Sintang

Once humidity and wind are folded in, May averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sintang weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°27526.7122.6
Feb31° / 24°22923122.7
Mar31° / 24°26626.9122.5
Apr32° / 24°26627.5122.3
May32° / 24°24325122.6
Jun32° / 24°18620123.1
Jul32° / 24°16017.5123.4
Aug32° / 24°16517.5123.2
Sep32° / 24°23721.7122.8
Oct31° / 24°31327.8122.4
Nov31° / 24°31828.6122.3
Dec31° / 24°26728.2122.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11189
21288
31288
41288
51288
61288
71288
81387
91486
101486
111486
121585
131684
141783
151783
161783
171882
181882
191882
201981
211981
221981
231981
241882
251882
261783
271783
281783
291783
301783
311882

Chance of precipitation in May

Any precipitation

Sintang gets around 243 mm of rain over 25 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 81% and peaks near 89% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
289
388
487
587
686
785
884
983
1082
1181
1280
1380
1479
1578
1678
1778
1877
1977
2077
2177
2277
2377
2478
2578
2678
2778
2879
2979
3079
3179

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the miserable band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1298
2298
3199
4199
5298
6298
7298
8298
9298
10298
11298
12298
13298
14397
15397
16397
17397
18397
19496
20496
21496
22595
23595
24595
25694
26694
27694
28793
29793
30793
31793

Wind in May

Winds average 3 km/h in May.

Across May, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 hours at the start of May to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over May. Sunrise moves from 5:31 AM to 5:31 AM, and sunset from 5:31 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:315:31
212.05:315:31
312.05:315:31
412.05:315:31
512.05:315:31
612.05:315:31
712.05:305:31
812.05:305:31
912.05:305:30
1012.05:305:30
1112.05:305:30
1212.05:305:30
1312.05:305:30
1412.05:305:30
1512.05:305:30
1612.05:305:30
1712.05:305:30
1812.05:305:30
1912.05:305:30
2012.05:305:30
2112.05:305:31
2212.05:305:31
2312.05:305:31
2412.05:315:31
2512.05:315:31
2612.05:315:31
2712.05:315:31
2812.05:315:31
2912.05:315:31
3012.05:315:31
3112.05:315:31

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.63 kWh/m².

For context, solar energy here swings from a low near 4.25 kWh/m² to a high of 5.14 kWh/m² in August across the year — May's 4.63 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in May

Is May a good time to visit Sintang?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.6
Sightseeing
6th-best month of the year
4.1
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Sintang.

What to pack for Sintang in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Sintang sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Sintang in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 16Jul 13UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Air quality in Sintang in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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).

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1458 µg/m³Jan 1513 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr16Moderate
May16Moderate
Jun15Moderate
Jul21Moderate
Aug43Poor
Sep61Unhealthy
Oct27Moderate
Nov15Moderate
Dec14Moderate
Location & terrain

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.

3 km
39 m
16 km
814 m
80 km
1,640 m
treesgrasslandartificial surfacesbare terrainwater
May weather nearby: Engkilili 121 km · Sri Aman 131 km · Betong 148 km · Serian 160 km · Tebedu 165 km · Simunjan 168 km · Saratok 186 km · Siburan 189 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
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).