Tanjung Pandan weather in September

In September, Tanjung Pandan sees average daytime highs of 31°C and overnight lows near 24°C, with 104 mm of rain across 13 wet days and about 12 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 11% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Tanjung Pandan's 4th-clearest and 4th-windiest month. For the whole year in context, see Tanjung Pandan's year-round climate.

Daytime high
31°
1st warmest
Overnight low
24°
3rd coldest
Rainfall
104 mm
13 wet days
Daylight
12 hours
5:44 AM – 5:43 PM
Cloud cover
73%
4th clearest
Wind
11 km/h
4th windiest
Solar energy
5.98 kWh/m²
Travel score
3.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Tanjung Pandan reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124

How September really feels in Tanjung Pandan

Once humidity and wind are folded in, September 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Tanjung Pandan weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°27128.612.13.0
Feb29° / 25°1922312.13.2
Mar30° / 25°26927.5122.8
Apr30° / 25°3332911.92.5
May31° / 25°23627.411.92.8
Jun31° / 25°16821.911.83.3
Jul30° / 24°1221711.94.0
Aug31° / 24°9012.611.94.2
Sep31° / 24°10413123.9
Oct31° / 24°2432212.13.2
Nov30° / 25°35428.312.12.7
Dec29° / 25°35630.212.22.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 73%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13466
23466
33466
43367
53367
63268
73268
83169
93070
102971
112971
122971
132773
142773
152773
162674
172674
182575
192575
202476
212377
222476
232377
242377
252377
262377
272377
282278
292278
302377

Chance of precipitation in September

Any precipitation

Tanjung Pandan gets around 104 mm of rain over 13 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 45% and peaks near 51% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
147
247
346
446
545
645
744
844
943
1043
1143
1243
1343
1442
1542
1643
1743
1843
1943
2044
2144
2244
2344
2445
2546
2646
2747
2848
2949
3051

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
146828
246828
356728
456728
556728
666628
766628
866727
966727
1066727
1166727
1266826
1366826
1466826
1566826
1666826
1756827
1856827
1956827
2046828
2146729
2246729
2336730
2436631
2536532
2636532
2736433
2836334
2936235
3026335

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 5:51 AM to 5:38 AM, and sunset from 5:48 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:515:48
211.95:505:47
312.05:505:47
412.05:505:47
512.05:495:47
612.05:495:46
712.05:485:46
812.05:485:46
912.05:475:45
1012.05:475:45
1112.05:465:45
1212.05:465:45
1312.05:465:44
1412.05:455:44
1512.05:455:44
1612.05:445:43
1712.05:445:43
1812.05:435:43
1912.05:435:42
2012.05:425:42
2112.05:425:42
2212.05:425:42
2312.05:415:41
2412.05:415:41
2512.05:405:41
2612.05:405:40
2712.05:395:40
2812.05:395:40
2912.05:395:40
3012.05:385:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.98 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 5.98 kWh/m² in September across the year — September's 5.98 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
106.0Bright
116.0Bright
126.0Bright
136.0Bright
146.0Bright
156.0Bright
166.0Bright
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Is September a good time to visit Tanjung Pandan?

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

3.9
Sightseeing
3rd-best month of the year
5.8
Beach & pool
2nd-best month of the year

September is a weaker month for outdoor sightseeing in Tanjung Pandan.

What to pack for Tanjung Pandan in September

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

In September, Tanjung Pandan sees daytime highs around 31°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near Tanjung Pandan in September

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

The sea offshore is warmest in May at about 30°C and coldest in February 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
Feb28Warm
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Tanjung Pandan in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (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 Pandan peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 11UV 15Jul 11UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug12Extreme
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Tanjung Pandan in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Tanjung Pandan is worst in October — around 18 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (January, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1418 µg/m³Jan 219 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr9Good
May9Good
Jun9Good
Jul11Good
Aug13Moderate
Sep15Moderate
Oct18Moderate
Nov12Good
Dec10Good
Location & terrain

Where is Tanjung Pandan?

Tanjung Pandan sits at 2.7°S, 107.6°E, 8 m above sea level, in Indonesia. The nearest listed city is Manggar, 72 km away.

PalembangIndralayaPontianakTerbanggi Besar

Topography around Tanjung Pandan

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

Within 3 km, the terrain around Tanjung Pandan has only modest variations in elevation — a maximum elevation change of 45 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 184 m; within 80 km, significant variations in elevation — a maximum elevation change of 461 m.

The land around Tanjung Pandan is covered by water (34%), artificial surfaces (29%) and trees (25%) within 3 km, trees (46%) and water (43%) within 16 km, and water (73%) and trees (23%) within 80 km.

3 km
45 m
16 km
184 m
80 km
461 m
treesgrasslandartificial surfacesbare terrainwatermangroves
September weather nearby: Manggar 72 km · Pangkalpinang 182 km · Sungailiat 194 km · Muntok 285 km · Palembang 321 km · Indralaya 334 km · Pontianak 354 km · Terbanggi Besar 359 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 Pandan (-2.7335°, 107.6348°, elevation 8 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).