Tanjung Balai weather in August

In August, Tanjung Balai sees average daytime highs of 28°C and overnight lows near 26°C, with 174 mm of rain across 22.8 wet days and about 12 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 15% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of August to 12 hours by month's end. Set against the rest of the year, August is Tanjung Balai's 3rd-clearest and 5th-windiest month. For the whole year in context, see Tanjung Balai's year-round climate.

Daytime high
28°
5th warmest
Overnight low
26°
9th coldest
Rainfall
174 mm
22.8 wet days
Daylight
12 hours
6:09 AM – 6:11 PM
Cloud cover
72%
3rd clearest
Wind
16 km/h
5th windiest
Solar energy
5.27 kWh/m²
Travel score
4.0
out of 10

Tanjung Balai is capital of Karimun Regency, Riau Islands, Indonesia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Tanjung Balai reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 29°C. Set against its neighbours, August runs on par with July and on par with September.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102827
112827
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826
312826

How August really feels in Tanjung Balai

Once humidity and wind are folded in, August 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
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Tanjung Balai weather by month

How August compares with the rest of the year at a glance. August is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°17418.611.94.9
Feb28° / 26°9813.3125.5
Mar28° / 26°16721.3124.4
Apr29° / 26°22026.4123.4
May29° / 27°23226.7123.4
Jun29° / 27°19122.512.13.8
Jul29° / 27°18622.512.14.0
Aug28° / 26°17422.8124.0
Sep28° / 26°16721.5124.1
Oct28° / 26°22024.6123.7
Nov28° / 26°32928.1123.5
Dec27° / 26°31925.811.93.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33466
43268
53268
63268
73169
83169
93169
103070
113070
122971
132971
142872
152872
162971
172971
182971
193070
202971
212971
222971
232971
242971
252971
262971
273070
283070
293070
303070
313070

Chance of precipitation in August

Any precipitation

Tanjung Balai gets around 174 mm of rain over 22.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 73% and peaks near 77% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
165
265
366
467
567
668
769
870
971
1072
1173
1274
1375
1476
1576
1676
1777
1877
1977
2077
2177
2277
2377
2476
2576
2676
2776
2875
2975
3075
3175

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15743
25743
35743
45743
55743
65743
75743
85842
95842
105842
115941
125941
136040
146040
156139
166238
176238
186337
196436
206535
216535
226634
236634
246733
256733
266733
276733
286733
296733
306832
316832

Wind in August

Winds average 16 km/h in August.

Across August, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

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

Days grow by about 0 minutes over August. Sunrise moves from 6:11 AM to 6:06 AM, and sunset from 6:14 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:116:14
212.06:116:14
312.06:116:14
412.06:116:13
512.06:116:13
612.06:116:13
712.06:116:13
812.06:116:13
912.06:106:13
1012.06:106:13
1112.06:106:12
1212.06:106:12
1312.06:106:12
1412.06:106:12
1512.06:106:12
1612.06:096:11
1712.06:096:11
1812.06:096:11
1912.06:096:11
2012.06:096:10
2112.06:086:10
2212.06:086:10
2312.06:086:10
2412.06:086:09
2512.06:076:09
2612.06:076:09
2712.06:076:08
2812.06:076:08
2912.06:066:08
3012.06:066:07
3112.06:066:07

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.27 kWh/m².

For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 5.79 kWh/m² in March across the year — August's 5.27 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in August

Is August a good time to visit Tanjung Balai?

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

4.0
Sightseeing
5th-best month of the year
4.8
Beach & pool
6th-best month of the year

August is a reasonable time to visit Tanjung Balai for sightseeing.

What to pack for Tanjung Balai in August

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

In August, Tanjung Balai sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Tanjung Balai in August

The nearest coast averages about 29°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in May at about 30°C and coldest in January near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Tanjung Balai in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Tanjung Balai peaks around February 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeFeb 18UV 15Jun 22UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun10Very high
Jul10Extreme
Aug13Extreme
Sep12Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Tanjung Balai in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Tanjung Balai is worst in September — around 45 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (January, 26 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorModerateSep 1845 µg/m³Jan 1026 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb29Moderate
Mar39Poor
Apr35Moderate
May29Moderate
Jun26Moderate
Jul31Moderate
Aug37Poor
Sep45Poor
Oct40Poor
Nov31Moderate
Dec26Moderate
Location & terrain

Where is Tanjung Balai?

Tanjung Balai sits at 1.0°N, 103.4°E, 9 m above sea level, in Indonesia. The nearest listed city is Boon Lay, 46 km away.

Topography around Tanjung Balai

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tanjung Balai.

Within 3 km, the terrain around Tanjung Balai has only modest variations in elevation — a maximum elevation change of 37 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 480 m; within 80 km, large variations in elevation — a maximum elevation change of 656 m.

The land around Tanjung Balai is covered by water (47%) and artificial surfaces (25%) within 3 km, water (72%) within 16 km, and water (60%) and trees (28%) within 80 km.

3 km
37 m
16 km
480 m
80 km
656 m
treesshrubsgrasslandartificial surfacesbare terrainwatermangroves
August weather nearby: Boon Lay 46 km · Iskandar Puteri 49 km · Jurong Town 50 km · Jurong East 51 km · Jurong West 51 km · Clementi Housing Estate 52 km · Hong Kah 52 km · Telok Blangah 53 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 Tanjung Balai (1.0001°, 103.4219°, elevation 9 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).