Bandung weather in September

In September, Bandung sees average daytime highs of 26°C and overnight lows near 18°C, with 157 mm of rain across 17.8 wet days and about 12 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 9% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Bandung's 4th-clearest and 5th-windiest month. For the whole year in context, see Bandung's year-round climate.

Daytime high: 26°; 2nd warmest
Overnight low: 18°; 3rd coldest
Rainfall: 157 mm; 17.8 wet days
Daylight: 12 hours; 5:45 AM – 5:43 PM
Cloud cover: 70%; 4th clearest
Wind: 3 km/h; 5th windiest
Solar energy: 5.88 kWh/m²
Travel score: 5.3; out of 10

Bandung is former higher education institution in Bandung, Indonesia.

Air quality: High; PM2.5 33 µg/m³ · 2014
Founded: 2023

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

← August Bandung year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Bandung reaches about 26°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°C. Set against its neighbours, September runs on par with August and on par with October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26
Avg low (°C)	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18	18

	Avg high (°C)	Avg low (°C)
1	26	18
2	26	18
3	26	18
4	26	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	26	18
16	26	18
17	26	18
18	26	18
19	26	18
20	26	18
21	26	18
22	26	18
23	26	18
24	26	18
25	26	18
26	26	18
27	26	18
28	26	18
29	26	18
30	26	18

Bandung weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	25° / 19°	397	29.7	12.4	3.6
Feb	25° / 19°	386	27.3	12.2	3.5
Mar	25° / 19°	435	30.2	12	3.5
Apr	26° / 19°	364	28.5	11.9	3.6
May	26° / 19°	217	24.7	11.7	4.3
Jun	26° / 18°	152	19.3	11.6	5.1
Jul	26° / 18°	124	18	11.6	5.5
Aug	26° / 17°	106	15.6	11.8	5.8
Sep	26° / 18°	157	17.8	12	5.3
Oct	26° / 19°	352	23.9	12.2	4.4
Nov	26° / 19°	492	27.9	12.3	3.6
Dec	25° / 19°	457	29.6	12.4	3.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 68%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	36	35	35	36	36	36	35	36	36	35	35	35	34	32	32	32	32	30	30	30	29	29	29	27	27	27	27	27	26	25
Cloudier (%)	64	65	65	64	64	64	65	64	64	65	65	65	66	68	68	68	68	70	70	70	71	71	71	73	73	73	73	73	74	75

	Clearer (%)	Cloudier (%)
1	36	64
2	35	65
3	35	65
4	36	64
5	36	64
6	36	64
7	35	65
8	36	64
9	36	64
10	35	65
11	35	65
12	35	65
13	34	66
14	32	68
15	32	68
16	32	68
17	32	68
18	30	70
19	30	70
20	30	70
21	29	71
22	29	71
23	29	71
24	27	73
25	27	73
26	27	73
27	27	73
28	27	73
29	26	74
30	25	75

Chance of precipitation in September

Any precipitation

Bandung gets around 157 mm of rain over 17.8 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 60% and peaks near 69% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	57	57	58	58	57	57	57	57	57	57	57	58	58	58	58	58	58	59	59	60	60	61	62	63	64	65	66	67	68	69

	Rain chance (%)
1	57
2	57
3	58
4	58
5	57
6	57
7	57
8	57
9	57
10	57
11	57
12	58
13	58
14	58
15	58
16	58
17	58
18	59
19	59
20	60
21	60
22	61
23	62
24	63
25	64
26	65
27	66
28	67
29	68
30	69

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 54% of days. Sticky, muggy-or-worse air turns up on roughly 37% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Comfortable (%)	9	9	9	9	9	9	9	9	10	10	10	10	10	10	9	9	9	9	9	9	8	8	8	7	7	7	6	6	6	6
Humid (%)	58	58	58	58	58	59	59	59	58	58	58	58	57	57	57	56	56	55	54	53	53	52	51	51	50	49	48	47	46	45
Muggy (%)	33	33	33	33	33	32	32	32	32	32	32	32	33	33	34	35	35	36	37	38	39	40	41	42	43	44	45	47	48	49

	Comfortable (%)	Humid (%)	Muggy (%)
1	9	58	33
2	9	58	33
3	9	58	33
4	9	58	33
5	9	58	33
6	9	59	32
7	9	59	32
8	9	59	32
9	10	58	32
10	10	58	32
11	10	58	32
12	10	58	32
13	10	57	33
14	10	57	33
15	9	57	34
16	9	56	35
17	9	56	35
18	9	55	36
19	9	54	37
20	9	53	38
21	8	53	39
22	8	52	40
23	8	51	41
24	7	51	42
25	7	50	43
26	7	49	44
27	6	48	45
28	6	47	47
29	6	46	48
30	6	45	49

Wind in September

Winds average 3 km/h in September.

Across September, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	3	calm
2	3	calm
3	3	calm
4	3	calm
5	3	calm
6	3	calm
7	3	calm
8	3	calm
9	3	calm
10	3	calm
11	3	calm
12	3	calm
13	3	calm
14	3	calm
15	3	calm
16	3	calm
17	3	calm
18	3	calm
19	3	calm
20	3	calm
21	3	calm
22	3	calm
23	3	calm
24	3	calm
25	3	calm
26	3	calm
27	3	calm
28	3	calm
29	3	calm
30	3	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over September. Sunrise moves from 5:53 AM to 5:37 AM, and sunset from 5:45 PM to 5:40 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.1
Sunrise (AM)	5:53	5:53	5:52	5:52	5:51	5:51	5:50	5:50	5:49	5:48	5:48	5:47	5:47	5:46	5:46	5:45	5:44	5:44	5:43	5:43	5:42	5:42	5:41	5:41	5:40	5:39	5:39	5:38	5:38	5:37
Sunset (PM)	5:45	5:45	5:45	5:45	5:45	5:45	5:44	5:44	5:44	5:44	5:44	5:43	5:43	5:43	5:43	5:43	5:43	5:42	5:42	5:42	5:42	5:42	5:42	5:41	5:41	5:41	5:41	5:41	5:41	5:40

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.9	5:53	5:45
2	11.9	5:53	5:45
3	11.9	5:52	5:45
4	11.9	5:52	5:45
5	11.9	5:51	5:45
6	11.9	5:51	5:45
7	11.9	5:50	5:44
8	11.9	5:50	5:44
9	11.9	5:49	5:44
10	11.9	5:48	5:44
11	11.9	5:48	5:44
12	11.9	5:47	5:43
13	11.9	5:47	5:43
14	11.9	5:46	5:43
15	12.0	5:46	5:43
16	12.0	5:45	5:43
17	12.0	5:44	5:43
18	12.0	5:44	5:42
19	12.0	5:43	5:42
20	12.0	5:43	5:42
21	12.0	5:42	5:42
22	12.0	5:42	5:42
23	12.0	5:41	5:42
24	12.0	5:41	5:41
25	12.0	5:40	5:41
26	12.0	5:39	5:41
27	12.0	5:39	5:41
28	12.0	5:38	5:41
29	12.0	5:38	5:41
30	12.1	5:37	5:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.88 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.26 kWh/m² to a high of 5.88 kWh/m² in September across the year — September's 5.88 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.8	5.8	5.8	5.8	5.8	5.8	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.8	5.8	5.8	5.8	5.8	5.8	5.8
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.8	Bright
2	5.8	Bright
3	5.8	Bright
4	5.8	Bright
5	5.8	Bright
6	5.8	Bright
7	5.9	Bright
8	5.9	Bright
9	5.9	Bright
10	5.9	Bright
11	5.9	Bright
12	5.9	Bright
13	5.9	Bright
14	5.9	Bright
15	5.9	Bright
16	5.9	Bright
17	5.9	Bright
18	5.9	Bright
19	5.9	Bright
20	5.9	Bright
21	5.9	Bright
22	5.9	Bright
23	5.9	Bright
24	5.8	Bright
25	5.8	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.8	Bright
30	5.8	Bright

Planning a trip in September

Is September a good time to visit Bandung?

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

5.3

Sightseeing

3rd-best month of the year

5.0

Beach & pool

3rd-best month of the year

September is a reasonable time to visit Bandung for sightseeing.

What to pack for Bandung in September

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

In September, Bandung sees daytime highs around 26°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 18 days see rain.

rain gearlight clothessun protection

UV index in Bandung 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 Bandung peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 16 at about 8 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	12	11	15	10	9	8	9	11	12	12	7	12
Level	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high	Extreme	Extreme	Extreme	Very high	Extreme

	UV index (midday)	Level
Jan	12	Extreme
Feb	11	Extreme
Mar	15	Extreme
Apr	10	Extreme
May	9	Very high
Jun	8	Very high
Jul	9	Very high
Aug	11	Extreme
Sep	12	Extreme
Oct	12	Extreme
Nov	7	Very high
Dec	12	Extreme

Air quality in Bandung 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 Bandung is worst in May — around 42 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Bandung's WHO annual average of 33 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	27	28	33	37	42	41	38	32	30	29	30	27
Level	Moderate	Moderate	Moderate	Poor	Poor	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	27	Moderate
Feb	28	Moderate
Mar	33	Moderate
Apr	37	Poor
May	42	Poor
Jun	41	Poor
Jul	38	Poor
Aug	32	Moderate
Sep	30	Moderate
Oct	29	Moderate
Nov	30	Moderate
Dec	27	Moderate

Location & terrain

Where is Bandung?

Bandung sits at 6.9°S, 107.6°E, 714 m above sea level, in Indonesia. The nearest listed city is Margahayukencana, 7.0 km away.

Topography around Bandung

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

Within 3 km, the terrain around Bandung has only modest variations in elevation — a maximum elevation change of 94 m around an average of 707 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,221 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,993 m.

The land around Bandung is covered by artificial surfaces (93%) within 3 km, artificial surfaces (43%) and trees (37%) within 16 km, and trees (66%) and cropland (22%) within 80 km.

3 km

94 m

artificial surfaces 93%

16 km

1,221 m

artificial surfaces 43%

80 km

2,993 m

trees 66%

treesgrasslandcroplandartificial surfaceswater

← August Bandung year-round climate October →Best places to visit in September

September weather nearby: Margahayukencana 7.0 km · Cimahi 9.0 km · Pameungpeuk 11 km · Lembang 12 km · Banjaran 14 km · Soreang 16 km · Cileunyi 16 km · Padalarang 18 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

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 Bandung (-6.9222°, 107.6069°, elevation 714 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. 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).

	Avg high (°C)	Avg low (°C)
1	26	18
2	26	18
3	26	18
4	26	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	26	18
16	26	18
17	26	18
18	26	18
19	26	18
20	26	18
21	26	18
22	26	18
23	26	18
24	26	18
25	26	18
26	26	18
27	26	18
28	26	18
29	26	18
30	26	18

	Clearer (%)	Cloudier (%)
1	36	64
2	35	65
3	35	65
4	36	64
5	36	64
6	36	64
7	35	65
8	36	64
9	36	64
10	35	65
11	35	65
12	35	65
13	34	66
14	32	68
15	32	68
16	32	68
17	32	68
18	30	70
19	30	70
20	30	70
21	29	71
22	29	71
23	29	71
24	27	73
25	27	73
26	27	73
27	27	73
28	27	73
29	26	74
30	25	75

	Rain chance (%)
1	57
2	57
3	58
4	58
5	57
6	57
7	57
8	57
9	57
10	57
11	57
12	58
13	58
14	58
15	58
16	58
17	58
18	59
19	59
20	60
21	60
22	61
23	62
24	63
25	64
26	65
27	66
28	67
29	68
30	69

	Comfortable (%)	Humid (%)	Muggy (%)
1	9	58	33
2	9	58	33
3	9	58	33
4	9	58	33
5	9	58	33
6	9	59	32
7	9	59	32
8	9	59	32
9	10	58	32
10	10	58	32
11	10	58	32
12	10	58	32
13	10	57	33
14	10	57	33
15	9	57	34
16	9	56	35
17	9	56	35
18	9	55	36
19	9	54	37
20	9	53	38
21	8	53	39
22	8	52	40
23	8	51	41
24	7	51	42
25	7	50	43
26	7	49	44
27	6	48	45
28	6	47	47
29	6	46	48
30	6	45	49

	Avg high (°C)	Avg low (°C)
1	26	18
2	26	18
3	26	18
4	26	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	26	18
16	26	18
17	26	18
18	26	18
19	26	18
20	26	18
21	26	18
22	26	18
23	26	18
24	26	18
25	26	18
26	26	18
27	26	18
28	26	18
29	26	18
30	26	18

	Clearer (%)	Cloudier (%)
1	36	64
2	35	65
3	35	65
4	36	64
5	36	64
6	36	64
7	35	65
8	36	64
9	36	64
10	35	65
11	35	65
12	35	65
13	34	66
14	32	68
15	32	68
16	32	68
17	32	68
18	30	70
19	30	70
20	30	70
21	29	71
22	29	71
23	29	71
24	27	73
25	27	73
26	27	73
27	27	73
28	27	73
29	26	74
30	25	75

	Rain chance (%)
1	57
2	57
3	58
4	58
5	57
6	57
7	57
8	57
9	57
10	57
11	57
12	58
13	58
14	58
15	58
16	58
17	58
18	59
19	59
20	60
21	60
22	61
23	62
24	63
25	64
26	65
27	66
28	67
29	68
30	69

	Comfortable (%)	Humid (%)	Muggy (%)
1	9	58	33
2	9	58	33
3	9	58	33
4	9	58	33
5	9	58	33
6	9	59	32
7	9	59	32
8	9	59	32
9	10	58	32
10	10	58	32
11	10	58	32
12	10	58	32
13	10	57	33
14	10	57	33
15	9	57	34
16	9	56	35
17	9	56	35
18	9	55	36
19	9	54	37
20	9	53	38
21	8	53	39
22	8	52	40
23	8	51	41
24	7	51	42
25	7	50	43
26	7	49	44
27	6	48	45
28	6	47	47
29	6	46	48
30	6	45	49

	Avg high (°C)	Avg low (°C)
1	26	18
2	26	18
3	26	18
4	26	18
5	26	18
6	26	18
7	26	18
8	26	18
9	26	18
10	26	18
11	26	18
12	26	18
13	26	18
14	26	18
15	26	18
16	26	18
17	26	18
18	26	18
19	26	18
20	26	18
21	26	18
22	26	18
23	26	18
24	26	18
25	26	18
26	26	18
27	26	18
28	26	18
29	26	18
30	26	18

	Clearer (%)	Cloudier (%)
1	36	64
2	35	65
3	35	65
4	36	64
5	36	64
6	36	64
7	35	65
8	36	64
9	36	64
10	35	65
11	35	65
12	35	65
13	34	66
14	32	68
15	32	68
16	32	68
17	32	68
18	30	70
19	30	70
20	30	70
21	29	71
22	29	71
23	29	71
24	27	73
25	27	73
26	27	73
27	27	73
28	27	73
29	26	74
30	25	75

	Rain chance (%)
1	57
2	57
3	58
4	58
5	57
6	57
7	57
8	57
9	57
10	57
11	57
12	58
13	58
14	58
15	58
16	58
17	58
18	59
19	59
20	60
21	60
22	61
23	62
24	63
25	64
26	65
27	66
28	67
29	68
30	69

	Comfortable (%)	Humid (%)	Muggy (%)
1	9	58	33
2	9	58	33
3	9	58	33
4	9	58	33
5	9	58	33
6	9	59	32
7	9	59	32
8	9	59	32
9	10	58	32
10	10	58	32
11	10	58	32
12	10	58	32
13	10	57	33
14	10	57	33
15	9	57	34
16	9	56	35
17	9	56	35
18	9	55	36
19	9	54	37
20	9	53	38
21	8	53	39
22	8	52	40
23	8	51	41
24	7	51	42
25	7	50	43
26	7	49	44
27	6	48	45
28	6	47	47
29	6	46	48
30	6	45	49