Bulolo weather in December

In December, Bulolo sees average daytime highs of 23°C and overnight lows near 16°C, with 359 mm of rain across 27.7 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 2% of the time in December, and the air most often feels humid.

Daylight stretches from about 12 h 24 min at the start of December to 12 h 24 min by month's end. Set against the rest of the year, December is Bulolo's 9th-clearest and 11th-windiest month. For the whole year in context, see Bulolo's year-round climate.

Daytime high
23°
4th warmest
Overnight low
16°
10th coldest
Rainfall
359 mm
27.7 wet days
Daylight
12 h 24 min
5:57 AM – 6:22 PM
Cloud cover
92%
9th clearest
Wind
3 km/h
11th windiest
Solar energy
4.57 kWh/m²
Travel score
3.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical December day in Bulolo reaches about 23°C in the afternoon and slips back to 16°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 25°C. Set against its neighbours, December runs on par with November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12316
22316
32316
42316
52316
62316
72316
82316
92316
102316
112316
122316
132316
142316
152316
162316
172316
182316
192316
202316
212316
222316
232316
242316
252416
262416
272416
282416
292416
302416
312416

Bulolo weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 16°36426.712.44.0
Feb24° / 16°3202412.24.0
Mar24° / 16°38227.5123.9
Apr23° / 16°3092611.83.9
May22° / 15°2442611.74.1
Jun22° / 15°2042411.64.2
Jul21° / 15°19924.811.64.1
Aug21° / 15°21324.711.84.1
Sep22° / 15°24024.6124.1
Oct22° / 15°25325.512.24.1
Nov23° / 16°27125.812.34.0
Dec23° / 16°35927.712.43.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 2% of December, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4793
5793
6793
7694
8694
9694
10595
11496
12496
13496
14496
15397
16397
17397
18397
19298
20298
21298
22298
23397
24397
25397
26298
27397
28397
29397
30397
31397

Chance of precipitation in December

Any precipitation

Bulolo gets around 359 mm of rain over 27.7 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 89% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
185
285
386
486
587
687
788
888
989
1089
1189
1290
1390
1491
1591
1691
1791
1891
1991
2091
2191
2290
2390
2490
2589
2689
2788
2887
2987
3086
3186

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 87% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1212833
2212833
3211843
4210853
5110863
619873
718874
818874
918874
1017884
1117875
1217875
1316885
1416885
1515895
1615886
1705896
1805896
1905896
2005896
2105896
2205896
2305896
2406886
2506877
2607867
2707867
2808857
2909847
3009847
31010837

Wind in December

Winds average 3 km/h in December.

Across December, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 24 min at the start of December to 12 h 24 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 5:52 AM to 6:04 AM, and sunset from 6:15 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:526:15
212.45:526:15
312.45:526:16
412.45:526:16
512.45:536:17
612.45:536:17
712.45:536:18
812.45:546:18
912.45:546:19
1012.45:556:19
1112.45:556:20
1212.45:556:20
1312.45:566:21
1412.45:566:21
1512.45:576:22
1612.45:576:22
1712.45:586:23
1812.45:586:23
1912.45:586:24
2012.45:596:24
2112.45:596:25
2212.46:006:25
2312.46:006:25
2412.46:016:26
2512.46:016:26
2612.46:026:27
2712.46:026:27
2812.46:036:28
2912.46:036:28
3012.46:046:29
3112.46:046:29

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.57 kWh/m².

For context, solar energy here swings from a low near 3.75 kWh/m² to a high of 4.99 kWh/m² in October across the year — December's 4.57 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.7Bright
314.7Bright
Planning a trip in December

Hazard calendar for Bulolo

In seasonPeak

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

Bulolo sits in the South Indian Ocean cyclone belt; the season peaks January–March.

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

Is December a good time to visit Bulolo?

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

3.9
Sightseeing
10th-best month of the year
3.2
Beach & pool
4th-best month of the year

December is a weaker month for outdoor sightseeing in Bulolo.

What to pack for Bulolo in December

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

In December, Bulolo sees daytime highs around 23°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 28 days see rain.

rain gearlight clothessun protection

Sea temperature near Bulolo in December

The nearest coast averages about 30°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 54 km away) is warmest in January at about 30°C and coldest in August 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
Jan30Tropical
Feb30Tropical
Mar30Tropical
Apr30Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Warm
Sep28Tropical
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index in Bulolo in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Bulolo peaks around March 12 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 12UV 17Jun 18UV 11
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar17Extreme
Apr15Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep15Extreme
Oct15Extreme
Nov14Extreme
Dec14Extreme
Location & terrain

Where is Bulolo?

Bulolo sits at 7.2°S, 146.6°E, 677 m above sea level, in Papua New Guinea. The nearest listed city is Lae, 66 km away.

GorokaMadangPopondettaPort MoresbyMount HagenMendiKimbe

Topography around Bulolo

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

Within 3 km, the terrain around Bulolo has significant variations in elevation — a maximum elevation change of 419 m around an average of 710 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,809 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,433 m.

The land around Bulolo is covered by trees (56%) and grassland (39%) within 3 km, trees (76%) and grassland (24%) within 16 km, and trees (79%) within 80 km.

3 km
419 m
16 km
1,809 m
80 km
3,433 m
treesgrasslandartificial surfacesbare terrainwater
December weather nearby: Lae 66 km · Goroka 186 km · Madang 240 km · Popondetta 247 km · Port Moresby 259 km · Mount Hagen 305 km · Mendi 350 km · Kimbe 428 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 Bulolo (-7.2036°, 146.6401°, elevation 677 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).