Muar weather in September

In September, Muar sees average daytime highs of 29°C and overnight lows near 26°C, with 180 mm of rain across 23.8 wet days and about 12 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 5% of the time in September, and the air most often feels miserable.

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 Muar's 7th-clearest and 10th-windiest month. For the whole year in context, see Muar's year-round climate.

Daytime high
29°
9th warmest
Overnight low
26°
7th coldest
Rainfall
180 mm
23.8 wet days
Daylight
12 hours
7:04 AM – 7:04 PM
Cloud cover
82%
7th clearest
Wind
9 km/h
10th windiest
Solar energy
5.38 kWh/m²
Travel score
3.5
out of 10

Muar is town in Johor and district capital of Muar District.

Founded
1885

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 29°C through the month.

A typical September day in Muar reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°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)
12926
22926
32926
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302926

How September really feels in Muar

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.

Muar weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°12116.311.94.4
Feb30° / 25°7412.611.94.5
Mar30° / 25°15022123.6
Apr30° / 26°20326123.1
May30° / 26°21326.612.13.1
Jun30° / 26°17522.712.13.5
Jul29° / 26°17522.712.13.7
Aug29° / 26°18524.212.13.6
Sep29° / 26°18023.8123.5
Oct29° / 26°22026.2123.3
Nov29° / 25°2752811.93.0
Dec29° / 25°23924.511.93.5

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 (%)
11486
21486
31585
41585
51684
61684
71684
81684
91684
101684
111585
121585
131585
141585
151585
161486
171387
181387
191387
201387
211387
221387
231387
241288
251189
261189
271288
281288
291288
301288

Chance of precipitation in September

Any precipitation

Muar gets around 180 mm of rain over 23.8 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 79% and peaks near 82% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
179
279
378
478
578
678
778
878
978
1078
1178
1278
1378
1478
1579
1679
1779
1880
1980
2080
2180
2280
2381
2481
2581
2681
2781
2881
2982
3082

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
14357
24357
34456
44555
54654
64654
74753
84852
94852
104852
114852
124852
134852
144753
154753
164654
174555
184456
194357
204258
214258
224159
234159
244060
254060
264060
274060
284159
294159
304159

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 7:08 AM to 7:00 AM, and sunset from 7:11 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.07:087:11
212.07:087:10
312.07:087:10
412.07:077:09
512.07:077:09
612.07:077:09
712.07:077:08
812.07:067:08
912.07:067:07
1012.07:067:07
1112.07:057:07
1212.07:057:06
1312.07:057:06
1412.07:047:05
1512.07:047:05
1612.07:047:04
1712.07:037:04
1812.07:037:04
1912.07:037:03
2012.07:027:03
2112.07:027:02
2212.07:027:02
2312.07:027:01
2412.07:017:01
2512.07:017:01
2612.07:017:00
2712.07:007:00
2812.07:006:59
2912.07:006:59
3012.07:006:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.38 kWh/m².

For context, solar energy here swings from a low near 4.48 kWh/m² to a high of 5.8 kWh/m² in March across the year — September's 5.38 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.3Bright
Planning a trip in September

Hazard calendar for Muar

In seasonPeak

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

Muar 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 Muar?

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

3.5
Sightseeing
6th-best month of the year
4.5
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Muar.

What to pack for Muar in September

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

In September, Muar sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Muar 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 20 km away) is warmest in May at about 30°C and coldest in January 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
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Muar 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 Muar peaks around February 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 17UV 14Jul 10UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Muar 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 Muar is worst in September — around 39 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (February, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1638 µg/m³Feb 816 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar22Moderate
Apr28Moderate
May28Moderate
Jun28Moderate
Jul30Moderate
Aug34Moderate
Sep39Poor
Oct34Moderate
Nov23Moderate
Dec19Moderate
Location & terrain

Where is Muar?

Muar sits at 2.0°N, 102.6°E, 6 m above sea level, in Malaysia. The nearest listed city is Bakri, 9.0 km away.

Topography around Muar

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

Within 3 km, the terrain around Muar has only modest variations in elevation — a maximum elevation change of 20 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 243 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,226 m.

The land around Muar is covered by artificial surfaces (46%) and trees (21%) within 3 km, trees (45%) and water (42%) within 16 km, and trees (52%) and water (43%) within 80 km.

3 km
20 m
16 km
243 m
80 km
1,226 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Bakri 9.0 km · Merlimau 20 km · Bukit Gambir 21 km · Gerisek 24 km · Tangkak 25 km · Pagoh 25 km · Kampung Ayer Molek 33 km · Parit Sulung 36 km

Malaysia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / G / M
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$13,125
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
22.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 581
Religion
Muslim 64%Buddhist 19%Christian 9%Hindu 6%

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 Muar (2.0442°, 102.5689°, elevation 6 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).