Sengkurong weather in September

In September, Sengkurong sees average daytime highs of 28°C and overnight lows near 26°C, with 202 mm of rain across 21.5 wet days and about 12 hours of daylight. It is the 5th-warmest and 5th-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 5% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Sengkurong's 8th-clearest and 7th-windiest month. For the whole year in context, see Sengkurong's year-round climate.

Daytime high
28°
5th warmest
Overnight low
26°
7th coldest
Rainfall
202 mm
21.5 wet days
Daylight
12 hours
6:14 AM – 6:16 PM
Cloud cover
82%
8th clearest
Wind
12 km/h
7th windiest
Solar energy
5.65 kWh/m²
Travel score
4.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Sengkurong 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 27°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826

How September really feels in Sengkurong

Once humidity and wind are folded in, September averages 25 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
25
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.

Sengkurong weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°19621.911.74.5
Feb27° / 25°11616.411.85.1
Mar27° / 26°8616.9125.2
Apr28° / 26°13621.112.14.3
May29° / 26°16621.812.24.0
Jun29° / 26°20819.512.34.2
Jul28° / 26°18719.112.34.4
Aug28° / 26°17819.412.24.3
Sep28° / 26°20221.5124.1
Oct28° / 26°25126.811.93.7
Nov28° / 26°26028.111.83.5
Dec28° / 26°26627.511.73.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 9% of September, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11783
21684
31783
41783
51684
61684
71684
81585
91585
101486
111486
121486
131387
141387
151288
161288
171387
181387
191387
201387
211486
221486
231486
241486
251486
261585
271585
281486
291486
301486

Chance of precipitation in September

Any precipitation

Sengkurong gets around 202 mm of rain over 21.5 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 72% and peaks near 81% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
171
272
372
472
572
672
772
872
971
1071
1170
1270
1369
1469
1568
1668
1768
1868
1968
2069
2170
2271
2372
2473
2574
2676
2777
2878
2979
3081

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
16238
26337
36337
46436
56436
66436
76436
86436
96436
106337
116337
126238
136238
146139
156139
166040
176040
185941
195941
205941
215941
225941
236040
246040
256139
266238
276337
286535
296634
306733

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 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
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over September. Sunrise moves from 6:18 AM to 6:11 AM, and sunset from 6:23 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:186:23
212.16:176:23
312.16:176:22
412.16:176:22
512.16:176:21
612.16:176:21
712.16:166:20
812.16:166:20
912.16:166:19
1012.16:166:19
1112.06:156:18
1212.06:156:18
1312.06:156:17
1412.06:156:17
1512.06:146:16
1612.06:146:16
1712.06:146:15
1812.06:146:15
1912.06:136:14
2012.06:136:14
2112.06:136:13
2212.06:136:13
2312.06:136:12
2412.06:126:12
2512.06:126:11
2612.06:126:11
2712.06:126:10
2812.06:126:10
2912.06:116:09
3012.06:116:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.65 kWh/m².

For context, solar energy here swings from a low near 4.76 kWh/m² to a high of 5.98 kWh/m² in April across the year — September's 5.65 kWh/m² falls in the middle.

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
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Sengkurong

In seasonPeak

In September, Sengkurong sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Sengkurong sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Sengkurong?

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

4.1
Sightseeing
8th-best month of the year
4.7
Beach & pool
8th-best month of the year

September is a reasonable time to visit Sengkurong for sightseeing.

What to pack for Sengkurong in September

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

In September, Sengkurong sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Sengkurong in September

The nearest coast averages about 30°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 23 km away) is warmest in May at about 30°C and coldest in February near 27°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
Jan28Warm
Feb27Warm
Mar28Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Sengkurong in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Sengkurong peaks around February 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 18UV 14Dec 10UV 11
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar14Extreme
Apr14Extreme
May14Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Sengkurong 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 Sengkurong is worst in September — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1417 µg/m³Dec 109 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar15Moderate
Apr16Moderate
May16Moderate
Jun14Moderate
Jul14Moderate
Aug14Moderate
Sep17Moderate
Oct12Good
Nov9Good
Dec9Good
Location & terrain

Where is Sengkurong?

Sengkurong sits at 4.9°N, 114.8°E, 14 m above sea level, in Brunei. The nearest listed city is Bandar Seri Begawan, 12 km away.

Bandar Seri BegawanTutongMentiriLimbangSerasaMuaraBangarLiang

Topography around Sengkurong

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

Within 3 km, the terrain around Sengkurong has only modest variations in elevation — a maximum elevation change of 119 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 198 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,621 m.

The land around Sengkurong is covered by trees (65%) and artificial surfaces (24%) within 3 km, trees (56%) and water (29%) within 16 km, and trees (53%) and water (43%) within 80 km.

3 km
119 m
16 km
198 m
80 km
1,621 m
treesgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Bandar Seri Begawan 12 km · Tutong 22 km · Mentiri 23 km · Limbang 24 km · Serasa 29 km · Muara 31 km · Bangar 33 km · Liang 44 km

Brunei travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type G
240 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$32,235
2025
Homicide rate
0.5
per 100k, 2013
Road deaths
7.5
per 100k/yr, 2019
Income group
High
World Bank
Religion
Muslim 82%Christian 7%Buddhist 6%other 5%

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 Sengkurong (4.8833°, 114.8333°, elevation 14 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).