Kota Bharu weather in September

In September, Kota Bharu sees average daytime highs of 32°C and overnight lows near 25°C, with 244 mm of rain across 27.6 wet days and about 12 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 4% of the time in September, and the air most often feels miserable.

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 Kota Bharu's 9th-clearest and 9th-windiest month. For the whole year in context, see Kota Bharu's year-round climate.

Daytime high
32°
6th warmest
Overnight low
25°
7th coldest
Rainfall
244 mm
27.6 wet days
Daylight
12 hours
7:04 AM – 7:06 PM
Cloud cover
82%
9th clearest
Wind
5 km/h
9th windiest
Solar energy
5.77 kWh/m²
Travel score
2.3
out of 10

Kota Bharu is state capital of Kelantan, Malaysia.

Density
4,920/km²
people per km²
Founded
1844

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 32°C through the month.

A typical September day in Kota Bharu reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13225
23225
33225
43225
53225
63225
73225
83225
93225
103225
113225
123225
133225
143225
153225
163225
173225
183225
193225
203225
213225
223225
233225
243225
253225
263225
273225
283225
293225
303225

How September really feels in Kota Bharu

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
22 feel dangerously hot (≥ 39°C)
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.

Kota Bharu weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°17420.211.74.1
Feb30° / 23°8113.311.84.5
Mar31° / 24°11415.7123.8
Apr32° / 25°11818.612.12.9
May33° / 25°1782612.32.3
Jun32° / 25°1832512.32.4
Jul32° / 25°18525.312.32.5
Aug32° / 25°2132612.22.4
Sep32° / 25°24427.6122.3
Oct31° / 25°31029.111.92.4
Nov30° / 24°3842811.72.8
Dec29° / 24°4122611.73.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11585
21585
31585
41585
51585
61585
71585
81684
91684
101585
111585
121585
131585
141585
151585
161585
171585
181486
191486
201486
211486
221486
231387
241288
251288
261288
271189
281189
291189
301090

Chance of precipitation in September

Any precipitation

Kota Bharu gets around 244 mm of rain over 27.6 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 91% and peaks near 93% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
191
292
392
492
592
692
792
892
992
1092
1192
1291
1391
1491
1591
1690
1790
1890
1990
2090
2191
2291
2391
2491
2591
2691
2792
2892
2992
3093

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 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
12377
22476
32476
42476
52575
62575
72575
82575
92575
102575
112476
122476
132476
142377
152278
162179
172179
182080
191981
201981
211981
221981
231981
241882
251882
261882
271882
281882
291882
301882

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 7:07 AM to 7:02 AM, and sunset from 7:14 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.17:077:14
212.17:077:14
312.17:077:13
412.17:077:13
512.17:067:12
612.17:067:12
712.17:067:11
812.17:067:11
912.17:067:10
1012.17:067:10
1112.17:057:09
1212.17:057:09
1312.17:057:08
1412.07:057:07
1512.07:057:07
1612.07:047:06
1712.07:047:06
1812.07:047:05
1912.07:047:05
2012.07:047:04
2112.07:037:04
2212.07:037:03
2312.07:037:03
2412.07:037:02
2512.07:037:01
2612.07:027:01
2712.07:027:00
2812.07:027:00
2912.07:026:59
3012.07:026:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.77 kWh/m².

For context, solar energy here swings from a low near 3.83 kWh/m² to a high of 6.3 kWh/m² in April across the year — September's 5.77 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.5Bright
Planning a trip in September

Hazard calendar for Kota Bharu

In seasonPeak

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

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

Kota Bharu's rainy season runs August–December, when most of the year's rain falls.

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

Is September a good time to visit Kota Bharu?

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

2.3
Sightseeing
11th-best month of the year
3.7
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Kota Bharu.

What to pack for Kota Bharu in September

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

In September, Kota Bharu sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Kota Bharu 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 15 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
Jan28Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Kota Bharu 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 Kota Bharu peaks around February 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 21UV 14Nov 22UV 11
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar14Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep14Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Kota Bharu 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 Kota Bharu is worst in October — around 31 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 930 µg/m³Feb 1223 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb23Moderate
Mar25Moderate
Apr28Moderate
May28Moderate
Jun28Moderate
Jul30Moderate
Aug28Moderate
Sep30Moderate
Oct31Moderate
Nov26Moderate
Dec24Moderate
Location & terrain

Where is Kota Bharu?

Kota Bharu sits at 6.1°N, 102.2°E, 10 m above sea level, in Malaysia. The nearest listed city is Wakaf Baharu, 5.0 km away.

Topography around Kota Bharu

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

Within 3 km, the terrain around Kota Bharu has only modest variations in elevation — a maximum elevation change of 24 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 110 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,340 m.

The land around Kota Bharu is covered by artificial surfaces (57%) and trees (28%) within 3 km, trees (38%) and water (23%) within 16 km, and trees (56%) and water (37%) within 80 km.

3 km
24 m
16 km
110 m
80 km
1,340 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Wakaf Baharu 5.0 km · Peringat 11 km · Kampong Kadok 14 km · Pasir Mas 14 km · Kampong Pangkal Kalong 23 km · Tak Bai 26 km · Su-ngai Kolok 32 km · Pasir Puteh 37 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 Kota Bharu (6.1236°, 102.2433°, elevation 10 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).