Tanjung Balai weather in April

In April, Tanjung Balai sees average daytime highs of 29°C and overnight lows near 26°C, with 220 mm of rain across 26.4 wet days and about 12 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 10% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 hours at the start of April to 12 hours by month's end. Set against the rest of the year, April is Tanjung Balai's 8th-clearest and 12th-windiest month. For the whole year in context, see Tanjung Balai's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
26°
8th coldest
Rainfall
220 mm
26.4 wet days
Daylight
12 hours
6:06 AM – 6:07 PM
Cloud cover
76%
8th clearest
Wind
10 km/h
12th windiest
Solar energy
5.53 kWh/m²
Travel score
3.4
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 April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical April day in Tanjung Balai reaches about 29°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, April runs on par with March and on par with May.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252927
262927
272927
282927
292927
302927

How April really feels in Tanjung Balai

Once humidity and wind are folded in, April averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Tanjung Balai weather by month

How April compares with the rest of the year at a glance. April is the 3rd-warmest and 4th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12575
22476
32476
42476
52377
62377
72476
82476
92476
102476
112476
122575
132476
142476
152476
162476
172476
182476
192476
202377
212377
222377
232377
242377
252278
262278
272377
282377
292377
302377

Chance of precipitation in April

Any precipitation

Tanjung Balai gets around 220 mm of rain over 26.4 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 88% and peaks near 90% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
186
287
387
487
587
687
787
887
987
1087
1187
1287
1387
1487
1587
1687
1787
1887
1988
2088
2188
2288
2389
2489
2589
2690
2790
2890
2990
3090

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
14951
24951
34852
44852
54852
64753
74753
84753
94654
104555
114456
124357
134258
144159
154060
163961
173763
183664
193565
203367
213169
222971
232773
242674
252476
262278
272080
281981
291882
301783

Wind in April

Winds average 10 km/h in April, the calmest month.

Across April, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in April

DaylightNight

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

Days grow by about 0 minutes over April. Sunrise moves from 6:11 AM to 6:03 AM, and sunset from 6:11 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:116:11
212.06:106:11
312.06:106:11
412.06:106:10
512.06:096:10
612.06:096:10
712.06:096:10
812.06:086:09
912.06:086:09
1012.06:086:09
1112.06:076:08
1212.06:076:08
1312.06:076:08
1412.06:066:08
1512.06:066:07
1612.06:066:07
1712.06:066:07
1812.06:056:07
1912.06:056:07
2012.06:056:06
2112.06:056:06
2212.06:046:06
2312.06:046:06
2412.06:046:06
2512.06:046:05
2612.06:036:05
2712.06:036:05
2812.06:036:05
2912.06:036:05
3012.06:036:05

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.53 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 — April's 5.53 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.4Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
Planning a trip in April

Is April a good time to visit Tanjung Balai?

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

3.4
Sightseeing
11th-best month of the year
4.2
Beach & pool
10th-best month of the year

April is a weaker month for outdoor sightseeing in Tanjung Balai.

What to pack for Tanjung Balai in April

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

In April, Tanjung Balai sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Tanjung Balai in April

The nearest coast averages about 30°C in April — 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 April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 April

GoodModeratePoorUnhealthyVery unhealthy

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