Sijunjung weather in September

In September, Sijunjung sees average daytime highs of 30°C and overnight lows near 21°C, with 151 mm of rain across 23.1 wet days and about 12 hours of daylight. It is the 6th-warmest and 8th-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 3% 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 Sijunjung's 4th-clearest and 1st-windiest month. For the whole year in context, see Sijunjung's year-round climate.

Daytime high
30°
6th warmest
Overnight low
21°
8th coldest
Rainfall
151 mm
23.1 wet days
Daylight
12 hours
6:11 AM – 6:10 PM
Cloud cover
82%
4th clearest
Wind
4 km/h
1st windiest
Solar energy
4.9 kWh/m²
Travel score
3.3
out of 10

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 Sijunjung reaches about 30°C in the afternoon and slips back to 21°C overnight — a 8°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)
13021
23021
33021
43021
53021
63021
73021
83021
93021
103021
113021
123021
133021
143021
153021
163021
173021
183021
193021
203021
213021
223021
233021
243021
253021
263021
273021
283021
293021
303022

How September really feels in Sijunjung

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.

Sijunjung weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 21°24526.8123.3
Feb29° / 21°18223.3123.3
Mar30° / 21°21526.4123.1
Apr30° / 22°23627.2122.8
May30° / 22°14524123.2
Jun30° / 21°10220.1123.6
Jul30° / 21°11219.4123.8
Aug30° / 21°12820.2123.6
Sep30° / 21°15123.1123.3
Oct30° / 22°17625.7123.1
Nov29° / 22°26127.1123.0
Dec29° / 21°25526.8123.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11783
21783
31882
41981
51981
61981
71981
81981
91981
101981
111882
121882
131882
141684
151684
161585
171585
181387
191387
201288
211189
221090
231090
241090
251090
26991
27892
28892
29892
30892

Chance of precipitation in September

Any precipitation

Sijunjung gets around 151 mm of rain over 23.1 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 77% and peaks near 80% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
174
274
375
475
575
675
775
875
975
1075
1175
1276
1376
1476
1577
1677
1777
1878
1978
2079
2179
2279
2379
2479
2579
2679
2779
2879
2980
3080

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
113960
213861
313861
413861
513762
613762
723761
823761
923761
1023761
1123860
1223860
1323860
1423860
1523860
1623761
1723761
1823662
1913564
2013564
2113465
2213366
2313366
2413267
2513267
2613168
2713168
2813168
2913168
3013168

Wind in September

Winds average 4 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 6:16 AM to 6:05 AM, and sunset from 6:15 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:166:15
212.06:166:15
312.06:156:15
412.06:156:14
512.06:156:14
612.06:146:14
712.06:146:13
812.06:146:13
912.06:136:13
1012.06:136:12
1112.06:126:12
1212.06:126:12
1312.06:126:11
1412.06:116:11
1512.06:116:11
1612.06:116:10
1712.06:106:10
1812.06:106:10
1912.06:096:09
2012.06:096:09
2112.06:096:09
2212.06:086:08
2312.06:086:08
2412.06:076:08
2512.06:076:07
2612.06:076:07
2712.06:066:07
2812.06:066:06
2912.06:066:06
3012.06:056:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.9 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 4.9 kWh/m² in September across the year — September's 4.9 kWh/m² sits near the top of that range.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Is September a good time to visit Sijunjung?

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

3.3
Sightseeing
4th-best month of the year
4.5
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Sijunjung.

What to pack for Sijunjung in September

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

In September, Sijunjung sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Sijunjung 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 at the nearest coast (about 70 km away) is warmest in May at about 30°C and coldest in October near 29°C.

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

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb30Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Sijunjung in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sijunjung peaks around February 15 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 15UV 16Jun 23UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
Dec13Extreme

Air quality in Sijunjung 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 Sijunjung is worst in September — around 38 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (December, 17 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 2338 µg/m³Dec 2018 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb21Moderate
Mar22Moderate
Apr21Moderate
May21Moderate
Jun21Moderate
Jul22Moderate
Aug26Moderate
Sep38Poor
Oct38Poor
Nov20Moderate
Dec17Moderate
Location & terrain

Where is Sijunjung?

Sijunjung sits at 0.7°S, 101.0°E, 167 m above sea level, in Indonesia. The nearest listed city is Solok, 37 km away.

Topography around Sijunjung

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

Within 3 km, the terrain around Sijunjung has significant variations in elevation — a maximum elevation change of 271 m around an average of 192 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,104 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,877 m.

The land around Sijunjung is covered by trees (87%) within 3 km, trees (95%) within 16 km, and trees (93%) within 80 km.

3 km
271 m
16 km
1,104 m
80 km
2,877 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Solok 37 km · Payakumbuh 66 km · Padangpanjang 69 km · Padang 75 km · Bukittinggi 80 km · Pariaman 96 km · Pekanbaru 145 km · Muara Bungo 154 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 Sijunjung (-0.7005°, 100.9774°, elevation 167 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).