Pekan Bahapal weather in December

In December, Pekan Bahapal sees average daytime highs of 30°C and overnight lows near 23°C, with 267 mm of rain across 28.4 wet days and about 11.8 hours of daylight. It is the 12th-warmest and 4th-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 1% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of December to 11 h 48 min by month's end. Set against the rest of the year, December is Pekan Bahapal's 10th-clearest and 1st-windiest month. For the whole year in context, see Pekan Bahapal's year-round climate.

Daytime high
30°
12th warmest
Overnight low
23°
5th coldest
Rainfall
267 mm
28.4 wet days
Daylight
11 h 48 min
6:25 AM – 6:14 PM
Cloud cover
91%
10th clearest
Wind
5 km/h
1st windiest
Solar energy
4.13 kWh/m²
Travel score
2.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Pekan Bahapal reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°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 on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
192923
202923
212923
222923
232923
242923
252922
262922
272922
282922
292922
303022
313022

How December really feels in Pekan Bahapal

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.

Pekan Bahapal weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°18725.811.83.1
Feb30° / 22°14722.311.93.0
Mar31° / 23°17924.7122.8
Apr31° / 23°21527.712.12.4
May31° / 23°22827.712.12.5
Jun31° / 23°17524.112.22.8
Jul31° / 23°18424.612.22.9
Aug31° / 23°21826.812.12.7
Sep30° / 23°29828.8122.5
Oct30° / 23°32029.711.92.6
Nov30° / 23°31129.211.92.6
Dec30° / 23°26728.411.82.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 4% of December, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1397
2397
3397
4397
5397
6397
7397
8397
9397
10496
11496
12496
13496
14496
15496
16595
17595
18595
19595
20595
21595
22595
23595
24595
25694
26793
27793
28793
29793
30892
31892

Chance of precipitation in December

Any precipitation

Pekan Bahapal gets around 267 mm of rain over 28.4 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 91% and peaks near 96% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
196
296
396
496
595
695
794
894
993
1093
1192
1292
1391
1491
1591
1690
1790
1890
1989
2089
2189
2289
2389
2489
2589
2689
2789
2888
2988
3088
3187

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
109010
209010
309010
40919
50919
60928
70928
80937
90937
100946
110946
120955
130955
140964
150964
160973
170973
180973
190973
200982
210982
220982
230982
240982
250982
260982
270982
281972
291972
301972
311963

Wind in December

Winds average 5 km/h in December, the windiest month of the year.

Across December, 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.

0246810151015202531
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
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 48 min at the start of December to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:18 AM to 6:32 AM, and sunset from 6:08 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:186:08
211.86:186:08
311.86:196:09
411.86:196:09
511.86:206:09
611.86:206:10
711.86:216:10
811.86:216:11
911.86:226:11
1011.86:226:11
1111.86:226:12
1211.86:236:12
1311.86:236:13
1411.86:246:13
1511.86:246:14
1611.86:256:14
1711.86:256:15
1811.86:266:15
1911.86:266:15
2011.86:276:16
2111.86:276:16
2211.86:286:17
2311.86:286:17
2411.86:296:18
2511.86:296:18
2611.86:306:19
2711.86:306:19
2811.86:306:20
2911.86:316:20
3011.86:316:21
3111.86:326:21

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.13 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.13 kWh/m² to a high of 5.36 kWh/m² in March across the year — December's 4.13 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in December

Hazard calendar for Pekan Bahapal

In seasonPeak

In December, Pekan Bahapal sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Pekan Bahapal sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

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

Is December a good time to visit Pekan Bahapal?

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

2.9
Sightseeing
3rd-best month of the year
3.9
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Pekan Bahapal.

What to pack for Pekan Bahapal in December

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

In December, Pekan Bahapal sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

Sea temperature near Pekan Bahapal 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 at the nearest coast (about 37 km away) is warmest in June at about 30°C and coldest in January 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
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Pekan Bahapal in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pekan Bahapal peaks around February 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 21UV 14Jun 21UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Extreme

Air quality in Pekan Bahapal 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 Pekan Bahapal is worst in October — around 40 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorModerateOct 1039 µg/m³Dec 1729 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb35Moderate
Mar38Poor
Apr36Poor
May34Moderate
Jun33Moderate
Jul33Moderate
Aug34Moderate
Sep39Poor
Oct40Poor
Nov31Moderate
Dec29Moderate
Location & terrain

Where is Pekan Bahapal?

Pekan Bahapal sits at 3.1°N, 99.2°E, 1,000 m above sea level, in Indonesia. The nearest listed city is Pematangsiantar, 21 km away.

Topography around Pekan Bahapal

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

Within 3 km, the terrain around Pekan Bahapal has only modest variations in elevation — a maximum elevation change of 66 m around an average of 133 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 318 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,189 m.

The land around Pekan Bahapal is covered by trees (84%) within 3 km, trees (85%) within 16 km, and trees (61%) and water (25%) within 80 km.

3 km
66 m
16 km
318 m
80 km
2,189 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Pematangsiantar 21 km · Tebingtinggi 24 km · Kisaran 51 km · Perbaungan 56 km · Percut 67 km · Deli Tua 70 km · Tanjungbalai 71 km · Teluk Nibung 72 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 Pekan Bahapal (3.1131°, 99.1735°, elevation 1,000 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).