Sungailiat weather in September

In September, Sungailiat sees average daytime highs of 30°C and overnight lows near 25°C, with 119 mm of rain across 14.1 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 30°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 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Sungailiat's 4th-clearest and 5th-windiest month. For the whole year in context, see Sungailiat's year-round climate.

Daytime high
30°
1st warmest
Overnight low
25°
9th coldest
Rainfall
119 mm
14.1 wet days
Daylight
12 hours
5:50 AM – 5:50 PM
Cloud cover
74%
4th clearest
Wind
12 km/h
5th windiest
Solar energy
5.69 kWh/m²
Travel score
4.3
out of 10

Sungailiat is district in Bangka Regency, Bangka Belitung Islands Province, Indonesia.

Density
687/km²
people per km²

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Sungailiat reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°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)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025

How September really feels in Sungailiat

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.

Sungailiat 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
Jan28° / 25°26326.512.13.4
Feb29° / 25°19321.512.13.7
Mar29° / 25°25126.1123.2
Apr30° / 25°30128.6122.8
May30° / 26°22626.511.93.1
Jun30° / 26°16821.411.93.7
Jul30° / 25°13918.111.94.2
Aug30° / 25°10613.511.94.6
Sep30° / 25°11914.1124.3
Oct30° / 25°23921.1123.6
Nov29° / 25°34728.412.12.9
Dec29° / 25°37830.112.12.9

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 (%)
13565
23466
33466
43466
53268
63268
73169
83169
93070
102971
112872
122773
132674
142773
152773
162674
172575
182575
192575
202476
212377
222377
232278
242278
252278
262377
272377
282377
292278
302278

Chance of precipitation in September

Any precipitation

Sungailiat gets around 119 mm of rain over 14.1 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 48% and peaks near 54% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
148
248
348
448
547
647
747
847
946
1046
1146
1246
1346
1446
1546
1646
1746
1846
1947
2047
2147
2248
2348
2449
2549
2650
2751
2852
2953
3054

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 65% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
16931
26832
36832
46832
56832
66832
76832
86832
96832
106832
116832
126832
136733
146733
156634
166634
176634
186535
196535
206436
216436
226436
236337
246337
256337
266238
276238
286139
296040
305941

Wind in September

Winds average 12 km/h in September.

Across September, 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
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours 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 0 minutes over September. Sunrise moves from 5:56 AM to 5:44 AM, and sunset from 5:54 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:565:54
212.05:565:54
312.05:565:54
412.05:555:53
512.05:555:53
612.05:545:53
712.05:545:52
812.05:545:52
912.05:535:52
1012.05:535:51
1112.05:525:51
1212.05:525:51
1312.05:515:50
1412.05:515:50
1512.05:515:50
1612.05:505:50
1712.05:505:49
1812.05:495:49
1912.05:495:49
2012.05:485:48
2112.05:485:48
2212.05:485:48
2312.05:475:47
2412.05:475:47
2512.05:465:47
2612.05:465:46
2712.05:465:46
2812.05:455:46
2912.05:455:46
3012.05:445:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.69 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.18 kWh/m² to a high of 5.69 kWh/m² in September across the year — September's 5.69 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
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.6Bright
305.6Bright
Planning a trip in September

Is September a good time to visit Sungailiat?

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

4.3
Sightseeing
2nd-best month of the year
5.9
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Sungailiat for sightseeing.

What to pack for Sungailiat in September

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

In September, Sungailiat sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Sungailiat 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 Sungailiat 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 Sungailiat peaks around February 20 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 15Jul 11UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug12Extreme
Sep12Extreme
Oct13Extreme
Nov11Extreme
Dec12Extreme

Air quality in Sungailiat 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 Sungailiat is worst in October — around 23 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (January, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1123 µg/m³Jan 1710 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May11Good
Jun11Good
Jul13Moderate
Aug16Moderate
Sep21Moderate
Oct23Moderate
Nov14Moderate
Dec10Good
Location & terrain

Where is Sungailiat?

Sungailiat sits at 1.9°S, 106.1°E, 4 m above sea level, in Indonesia. The nearest listed city is Pangkalpinang, 31 km away.

Topography around Sungailiat

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

Within 3 km, the terrain around Sungailiat has only modest variations in elevation — a maximum elevation change of 58 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 279 m; within 80 km, large variations in elevation — a maximum elevation change of 666 m.

The land around Sungailiat is covered by trees (32%), water (31%) and artificial surfaces (24%) within 3 km, water (47%) and trees (40%) within 16 km, and water (55%) and trees (39%) within 80 km.

3 km
58 m
16 km
279 m
80 km
666 m
treesgrasslandartificial surfacesbare terrainwatermangroves
September weather nearby: Pangkalpinang 31 km · Muntok 109 km · Palembang 193 km · Tanjung Pandan 194 km · Indralaya 224 km · Simpang 234 km · Manggar 264 km · Prabumulih 274 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 Sungailiat (-1.8544°, 106.1222°, elevation 4 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).