Alor Setar weather in December

In December, Alor Setar sees average daytime highs of 29°C and overnight lows near 25°C, with 129 mm of rain across 15.6 wet days and about 11.7 hours of daylight. It is the 8th-warmest and 10th-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 10% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of December to 11 h 36 min by month's end. Set against the rest of the year, December is Alor Setar's 5th-clearest and 1st-windiest month. For the whole year in context, see Alor Setar's year-round climate.

Daytime high
29°
8th warmest
Overnight low
25°
2nd coldest
Rainfall
129 mm
15.6 wet days
Daylight
11 h 36 min
7:25 AM – 7:04 PM
Cloud cover
79%
5th clearest
Wind
14 km/h
1st windiest
Solar energy
4.66 kWh/m²
Travel score
4.4
out of 10

Alor Setar is state capital of Kedah, Malaysia.

Density
2,611/km²
people per km²
Founded
1735

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Alor Setar reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°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, December runs on par with November and about 1°C cooler than January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
283025
293025
303025
313025

How December really feels in Alor Setar

Once humidity and wind are folded in, December averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Alor Setar weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°539.311.74.7
Feb31° / 25°589.711.84.3
Mar31° / 26°13218.4123.6
Apr30° / 26°19325.712.13.0
May30° / 26°2432612.33.0
Jun30° / 26°18421.312.33.4
Jul30° / 26°19022.212.33.6
Aug29° / 26°23223.612.23.5
Sep29° / 26°25926123.2
Oct29° / 26°32028.611.93.0
Nov29° / 25°2342511.73.3
Dec29° / 25°12915.611.74.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21783
31882
41981
51981
61981
71981
81981
91981
101981
111981
121981
131981
141882
151981
161981
171981
181981
191981
202080
212179
222080
232080
242179
252179
262377
272377
282377
292575
302674
312674

Chance of precipitation in December

Any precipitation

Alor Setar gets around 129 mm of rain over 15.6 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 51% and peaks near 68% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
168
267
365
464
563
662
760
859
958
1057
1156
1255
1354
1452
1551
1650
1749
1848
1947
2046
2145
2244
2342
2441
2540
2640
2739
2838
2937
3037
3136

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
116732
216930
317029
417227
517326
617524
717623
817722
917821
1018019
1118118
1218217
1318217
1418316
1518415
1628414
1728414
1828513
1938413
2038512
2148412
2248511
2358411
2468410
2568410
267849
278839
288839
299829
3010819
3111809

Wind in December

Winds average 14 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 12 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 42 min at the start of December to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:18 AM to 7:32 AM, and sunset from 6:58 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:186:58
211.77:196:59
311.77:196:59
411.77:206:59
511.77:207:00
611.77:217:00
711.77:217:00
811.77:217:01
911.77:227:01
1011.77:227:02
1111.77:237:02
1211.77:237:02
1311.67:247:03
1411.67:247:03
1511.67:257:04
1611.67:257:04
1711.67:267:05
1811.67:267:05
1911.67:277:05
2011.67:277:06
2111.67:287:06
2211.67:287:07
2311.67:297:07
2411.67:297:08
2511.67:307:08
2611.67:307:09
2711.67:307:09
2811.67:317:10
2911.67:317:10
3011.67:327:11
3111.67:327:11

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.66 kWh/m².

For context, solar energy here swings from a low near 4.54 kWh/m² to a high of 6.06 kWh/m² in March across the year — December's 4.66 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.9Bright
294.9Bright
304.9Bright
315.0Bright
Planning a trip in December

Hazard calendar for Alor Setar

In seasonPeak

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

Alor Setar 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 December a good time to visit Alor Setar?

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

4.4
Sightseeing
2nd-best month of the year
5.8
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Alor Setar for sightseeing.

What to pack for Alor Setar in December

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

In December, Alor Setar sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Alor Setar in December

The nearest coast averages about 29°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in May at about 31°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
Feb29Tropical
Mar30Tropical
Apr30Tropical
May31Tropical
Jun31Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Alor Setar in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Alor Setar peaks around February 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 18 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 19UV 14Jul 18UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec11Extreme

Air quality in Alor Setar in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Alor Setar is worst in July — around 29 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1129 µg/m³Feb 1120 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb20Moderate
Mar24Moderate
Apr27Moderate
May26Moderate
Jun29Moderate
Jul29Moderate
Aug27Moderate
Sep28Moderate
Oct27Moderate
Nov23Moderate
Dec20Moderate
Location & terrain

Where is Alor Setar?

Alor Setar sits at 6.1°N, 100.4°E, 7 m above sea level, in Malaysia. The nearest listed city is Kampung Alor Mengkudu, 5.0 km away.

Topography around Alor Setar

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

Within 3 km, the terrain around Alor Setar has only modest variations in elevation — a maximum elevation change of 16 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 200 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,254 m.

The land around Alor Setar is covered by artificial surfaces (63%) within 3 km, cropland (55%) and water (22%) within 16 km, and trees (51%) and water (35%) within 80 km.

3 km
16 m
16 km
200 m
80 km
1,254 m
treesgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Kampung Alor Mengkudu 5.0 km · Kuala Kedah 7.0 km · Anak Bukit 7.0 km · Tokai 11 km · Jitra 18 km · Pokok Sena 18 km · Pendang 19 km · Padang Besar 30 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 Alor Setar (6.121°, 100.3601°, elevation 7 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).