Wewak weather in December

In December, Wewak sees average daytime highs of 28°C and overnight lows near 26°C, with 184 mm of rain across 25.3 wet days and about 12.2 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 4% of the time in December, and the air most often feels miserable.

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

Daytime high
28°
1st warmest
Overnight low
26°
11th coldest
Rainfall
184 mm
25.3 wet days
Daylight
12 h 12 min
6:16 AM – 6:28 PM
Cloud cover
87%
11th clearest
Wind
12 km/h
4th windiest
Solar energy
4.79 kWh/m²
Travel score
3.9
out of 10

Wewak is provincial capital of East Sepik, Papua New Guinea.

Founded
1919

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 28°C through the month.

A typical December day in Wewak reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, December runs on par with November and on par with January.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826
312826

How December really feels in Wewak

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.

Wewak weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 26°14322.112.24.3
Feb28° / 26°15620.712.14.2
Mar28° / 26°18424.1124.1
Apr28° / 26°21525.811.93.8
May28° / 26°26527.911.83.7
Jun28° / 25°28426.911.83.7
Jul27° / 25°30026.411.84.0
Aug27° / 25°23324.111.94.3
Sep27° / 25°24924.2124.2
Oct28° / 25°22425.812.14.0
Nov28° / 26°21425.912.23.8
Dec28° / 26°18425.312.23.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 7% of December, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21585
31585
41585
51585
61486
71486
81486
91486
101288
111288
121288
131288
141288
151189
161189
171189
181189
191189
201090
211090
22991
23991
24991
25991
26991
27991
28991
29892
30991
31991

Chance of precipitation in December

Any precipitation

Wewak gets around 184 mm of rain over 25.3 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 81% and peaks near 83% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
183
282
382
482
582
682
782
882
982
1082
1182
1282
1382
1483
1583
1683
1783
1883
1983
2083
2182
2282
2381
2481
2580
2679
2779
2878
2977
3076
3175

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the miserable band about 54% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15347
25248
35248
45248
55248
65149
75149
85149
95050
105050
114951
124852
134852
144753
154654
164555
174555
184456
194357
204357
214258
224159
234159
244159
254159
264060
274060
284060
294060
304060
314060

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
912calm
1012calm
1112calm
1212calm
1312calm
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 12 min at the start of December to 12 h 12 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 6:10 AM to 6:23 AM, and sunset from 6:21 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:106:21
212.26:106:21
312.26:106:22
412.26:116:22
512.26:116:23
612.26:116:23
712.26:126:24
812.26:126:24
912.26:126:24
1012.26:136:25
1112.26:136:25
1212.26:146:26
1312.26:146:26
1412.26:156:27
1512.26:156:27
1612.26:166:28
1712.26:166:28
1812.26:166:29
1912.26:176:29
2012.26:176:30
2112.26:186:30
2212.26:186:31
2312.26:196:31
2412.26:196:32
2512.26:206:32
2612.26:206:32
2712.26:216:33
2812.26:216:33
2912.26:226:34
3012.26:226:34
3112.26:236:35

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.79 kWh/m².

For context, solar energy here swings from a low near 4.07 kWh/m² to a high of 5.24 kWh/m² in October across the year — December's 4.79 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Is December a good time to visit Wewak?

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

3.9
Sightseeing
8th-best month of the year
4.3
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Wewak.

What to pack for Wewak in December

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

In December, Wewak sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Wewak 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 19 km away) is warmest in May at about 30°C and coldest in August near 29°C.

The water stays above 20°C all year — warm enough for a swim any month.

28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Wewak in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Wewak peaks around March 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 16Jun 23UV 11
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme

Air quality in Wewak 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 Wewak is worst in August — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2118 µg/m³Dec 137 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb8Good
Mar8Good
Apr9Good
May10Good
Jun11Good
Jul15Moderate
Aug19Moderate
Sep18Moderate
Oct15Moderate
Nov8Good
Dec7Good
Location & terrain

Where is Wewak?

Wewak sits at 3.5°S, 143.6°E, 44 m above sea level, in Papua New Guinea. The nearest listed city is Mount Hagen, 265 km away.

Mount HagenMendiMadangGorokaJayapuraAbepuraSentaniLae

Topography around Wewak

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

Within 3 km, the terrain around Wewak has only modest variations in elevation — a maximum elevation change of 51 m around an average of 2 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 549 m; within 80 km, large variations in elevation — a maximum elevation change of 1,191 m.

The land around Wewak is covered by water (77%) within 3 km, trees (51%) and water (46%) within 16 km, and water (48%) and trees (36%) within 80 km.

3 km
51 m
16 km
549 m
80 km
1,191 m
treesgrasslandartificial surfaceswatermangroves
December weather nearby: Mount Hagen 265 km · Mendi 289 km · Madang 303 km · Goroka 342 km · Jayapura 343 km · Abepura 350 km · Sentani 363 km · Lae 513 km

Papua New Guinea travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type I
240 V · 50 Hz
Prices
≈ 58% of US
price level, 2025
GDP per capita
$3,020
2025
Homicide rate
9.3
per 100k, 2010
Road deaths
12.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Protestant 64%Roman Catholic 26%other Christian 5%non-Christian 1%

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 Wewak (-3.5496°, 143.6323°, elevation 44 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. 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).