Luwuk weather in December

In December, Luwuk sees average daytime highs of 28°C and overnight lows near 23°C, with 161 mm of rain across 24.5 wet days and about 12.1 hours of daylight. It is the 2nd-warmest and 5th-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 2% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of December to 12 h 06 min by month's end. Set against the rest of the year, December is Luwuk's 12th-clearest and 10th-windiest month. For the whole year in context, see Luwuk's year-round climate.

Daytime high: 28°; 2nd warmest
Overnight low: 23°; 12th coldest
Rainfall: 161 mm; 24.5 wet days
Daylight: 12 h 06 min; 5:43 AM – 5:47 PM
Cloud cover: 88%; 12th clearest
Wind: 5 km/h; 10th windiest
Solar energy: 5.01 kWh/m²
Travel score: 3.9; out of 10

← November Luwuk year-round climate January →Best places to visit in December

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

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 Luwuk reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28
Avg low (°C)	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23

	Avg high (°C)	Avg low (°C)
1	28	23
2	28	23
3	28	23
4	28	23
5	28	23
6	28	23
7	28	23
8	28	23
9	28	23
10	28	23
11	28	23
12	28	23
13	28	23
14	28	23
15	28	23
16	28	23
17	28	23
18	28	23
19	28	23
20	28	23
21	28	23
22	28	23
23	28	23
24	28	23
25	28	23
26	28	23
27	28	23
28	28	23
29	28	23
30	28	23
31	28	23

Luwuk weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 23°	114	19.6	12	4.6
Feb	28° / 23°	111	17.8	12	4.5
Mar	28° / 23°	179	24	12	4.0
Apr	28° / 23°	231	26.3	12	3.8
May	27° / 23°	205	25.1	12	4.2
Jun	26° / 22°	184	22.6	11.9	4.5
Jul	26° / 21°	123	18.5	12	5.3
Aug	26° / 21°	74	12.4	12	6.2
Sep	27° / 21°	51	9	12	6.5
Oct	28° / 22°	74	11.5	12	5.7
Nov	28° / 23°	122	21.3	12	4.1
Dec	28° / 23°	161	24.5	12.1	3.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of December, with mostly cloudy or overcast conditions the remaining 92%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	10	10	10	10	10	10	10	10	10	10	10	10	9	9	8	8	8	6	6	6	6	5	5	5	5	5	6	6	6	6	7
Cloudier (%)	90	90	90	90	90	90	90	90	90	90	90	90	91	91	92	92	92	94	94	94	94	95	95	95	95	95	94	94	94	94	93

	Clearer (%)	Cloudier (%)
1	10	90
2	10	90
3	10	90
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	9	91
14	9	91
15	8	92
16	8	92
17	8	92
18	6	94
19	6	94
20	6	94
21	6	94
22	5	95
23	5	95
24	5	95
25	5	95
26	5	95
27	6	94
28	6	94
29	6	94
30	6	94
31	7	93

Chance of precipitation in December

Any precipitation

Luwuk gets around 161 mm of rain over 24.5 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 78% and peaks near 83% on the wettest days. The odds ease toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	83	83	83	83	83	83	83	82	82	81	81	80	80	79	79	78	78	78	77	77	77	76	76	75	75	74	74	73	72	71	71

	Rain chance (%)
1	83
2	83
3	83
4	83
5	83
6	83
7	83
8	82
9	82
10	81
11	81
12	80
13	80
14	79
15	79
16	78
17	78
18	78
19	77
20	77
21	77
22	76
23	76
24	75
25	75
26	74
27	74
28	73
29	72
30	71
31	71

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 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Muggy (%)	15	14	14	13	13	13	12	12	12	11	11	11	11	10	10	10	10	10	10	10	10	11	11	12	12	13	14	15	15	16	17
Oppressive (%)	85	86	86	87	87	87	88	88	88	89	89	89	89	90	90	90	90	90	90	90	90	89	89	88	88	87	86	85	85	84	83

	Muggy (%)	Oppressive (%)
1	15	85
2	14	86
3	14	86
4	13	87
5	13	87
6	13	87
7	12	88
8	12	88
9	12	88
10	11	89
11	11	89
12	11	89
13	11	89
14	10	90
15	10	90
16	10	90
17	10	90
18	10	90
19	10	90
20	10	90
21	10	90
22	11	89
23	11	89
24	12	88
25	12	88
26	13	87
27	14	86
28	15	85
29	15	85
30	16	84
31	17	83

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	calm
30	6	calm
31	6	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 06 min at the start of December to 12 h 06 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 5:37 AM to 5:50 AM, and sunset from 5:40 PM to 5:54 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1	12.1
Sunrise (AM)	5:37	5:37	5:38	5:38	5:39	5:39	5:39	5:40	5:40	5:41	5:41	5:42	5:42	5:42	5:43	5:43	5:44	5:44	5:45	5:45	5:46	5:46	5:47	5:47	5:48	5:48	5:49	5:49	5:49	5:50	5:50
Sunset (PM)	5:40	5:41	5:41	5:41	5:42	5:42	5:43	5:43	5:43	5:44	5:44	5:45	5:45	5:46	5:46	5:47	5:47	5:48	5:48	5:49	5:49	5:49	5:50	5:50	5:51	5:51	5:52	5:52	5:53	5:53	5:54

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	5:37	5:40
2	12.1	5:37	5:41
3	12.1	5:38	5:41
4	12.1	5:38	5:41
5	12.1	5:39	5:42
6	12.1	5:39	5:42
7	12.1	5:39	5:43
8	12.1	5:40	5:43
9	12.1	5:40	5:43
10	12.1	5:41	5:44
11	12.1	5:41	5:44
12	12.1	5:42	5:45
13	12.1	5:42	5:45
14	12.1	5:42	5:46
15	12.1	5:43	5:46
16	12.1	5:43	5:47
17	12.1	5:44	5:47
18	12.1	5:44	5:48
19	12.1	5:45	5:48
20	12.1	5:45	5:49
21	12.1	5:46	5:49
22	12.1	5:46	5:49
23	12.1	5:47	5:50
24	12.1	5:47	5:50
25	12.1	5:48	5:51
26	12.1	5:48	5:51
27	12.1	5:49	5:52
28	12.1	5:49	5:52
29	12.1	5:49	5:53
30	12.1	5:50	5:53
31	12.1	5:50	5:54

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.01 kWh/m².

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 6.03 kWh/m² in October across the year — December's 5.01 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.1	Bright
2	5.1	Bright
3	5.1	Bright
4	5.1	Bright
5	5.1	Bright
6	5.1	Bright
7	5.1	Bright
8	5.1	Bright
9	5.1	Bright
10	5.1	Bright
11	5.1	Bright
12	5.1	Bright
13	5.1	Bright
14	5.0	Bright
15	5.0	Bright
16	5.0	Bright
17	5.0	Bright
18	5.0	Bright
19	5.0	Bright
20	5.0	Bright
21	5.0	Bright
22	5.0	Bright
23	5.0	Bright
24	5.0	Bright
25	5.0	Bright
26	5.0	Bright
27	5.0	Bright
28	5.1	Bright
29	5.1	Bright
30	5.1	Bright
31	5.1	Bright

Planning a trip in December

Is December a good time to visit Luwuk?

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

3.9

Sightseeing

11th-best month of the year

4.4

Beach & pool

10th-best month of the year

December is a weaker month for outdoor sightseeing in Luwuk.

What to pack for Luwuk in December

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

In December, Luwuk sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Luwuk 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 13 km away) is warmest in April 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	30	30	30	30	30	29	29	28	29	29	30	30
Comfort	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical

	Sea temperature (°C)	Comfort
Jan	30	Tropical
Feb	30	Tropical
Mar	30	Tropical
Apr	30	Tropical
May	30	Tropical
Jun	29	Tropical
Jul	29	Tropical
Aug	28	Tropical
Sep	29	Tropical
Oct	29	Tropical
Nov	30	Tropical
Dec	30	Tropical

UV index in Luwuk in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Luwuk peaks around February 19 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	15	16	15	14	13	11	11	13	14	14	13	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	15	Extreme
Feb	16	Extreme
Mar	15	Extreme
Apr	14	Extreme
May	13	Extreme
Jun	11	Extreme
Jul	11	Extreme
Aug	13	Extreme
Sep	14	Extreme
Oct	14	Extreme
Nov	13	Extreme
Dec	12	Extreme

Location & terrain

Where is Luwuk?

Luwuk sits at 1.0°S, 122.8°E, 17 m above sea level, in Indonesia. The nearest listed city is Gorontalo, 168 km away.

Topography around Luwuk

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

Within 3 km, the terrain around Luwuk has significant variations in elevation — a maximum elevation change of 523 m around an average of 189 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,495 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,513 m.

The land around Luwuk is covered by trees (50%) and water (28%) within 3 km, trees (62%) and water (32%) within 16 km, and water (56%) and trees (42%) within 80 km.

3 km

523 m

trees 50%

16 km

1,495 m

trees 62%

80 km

2,513 m

water 56%

treesgrasslandcroplandartificial surfaceswater

← November Luwuk year-round climate January →Best places to visit in December

December weather nearby: Gorontalo 168 km · Bungku 199 km · Poso 232 km · Palu 324 km · Masamba 326 km · Tomohon 337 km · Kendari 338 km · Tondano 345 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

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 Luwuk (-0.9516°, 122.7875°, elevation 17 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	28	23
2	28	23
3	28	23
4	28	23
5	28	23
6	28	23
7	28	23
8	28	23
9	28	23
10	28	23
11	28	23
12	28	23
13	28	23
14	28	23
15	28	23
16	28	23
17	28	23
18	28	23
19	28	23
20	28	23
21	28	23
22	28	23
23	28	23
24	28	23
25	28	23
26	28	23
27	28	23
28	28	23
29	28	23
30	28	23
31	28	23

	Clearer (%)	Cloudier (%)
1	10	90
2	10	90
3	10	90
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	9	91
14	9	91
15	8	92
16	8	92
17	8	92
18	6	94
19	6	94
20	6	94
21	6	94
22	5	95
23	5	95
24	5	95
25	5	95
26	5	95
27	6	94
28	6	94
29	6	94
30	6	94
31	7	93

	Rain chance (%)
1	83
2	83
3	83
4	83
5	83
6	83
7	83
8	82
9	82
10	81
11	81
12	80
13	80
14	79
15	79
16	78
17	78
18	78
19	77
20	77
21	77
22	76
23	76
24	75
25	75
26	74
27	74
28	73
29	72
30	71
31	71

	Muggy (%)	Oppressive (%)
1	15	85
2	14	86
3	14	86
4	13	87
5	13	87
6	13	87
7	12	88
8	12	88
9	12	88
10	11	89
11	11	89
12	11	89
13	11	89
14	10	90
15	10	90
16	10	90
17	10	90
18	10	90
19	10	90
20	10	90
21	10	90
22	11	89
23	11	89
24	12	88
25	12	88
26	13	87
27	14	86
28	15	85
29	15	85
30	16	84
31	17	83

	Avg high (°C)	Avg low (°C)
1	28	23
2	28	23
3	28	23
4	28	23
5	28	23
6	28	23
7	28	23
8	28	23
9	28	23
10	28	23
11	28	23
12	28	23
13	28	23
14	28	23
15	28	23
16	28	23
17	28	23
18	28	23
19	28	23
20	28	23
21	28	23
22	28	23
23	28	23
24	28	23
25	28	23
26	28	23
27	28	23
28	28	23
29	28	23
30	28	23
31	28	23

	Clearer (%)	Cloudier (%)
1	10	90
2	10	90
3	10	90
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	9	91
14	9	91
15	8	92
16	8	92
17	8	92
18	6	94
19	6	94
20	6	94
21	6	94
22	5	95
23	5	95
24	5	95
25	5	95
26	5	95
27	6	94
28	6	94
29	6	94
30	6	94
31	7	93

	Rain chance (%)
1	83
2	83
3	83
4	83
5	83
6	83
7	83
8	82
9	82
10	81
11	81
12	80
13	80
14	79
15	79
16	78
17	78
18	78
19	77
20	77
21	77
22	76
23	76
24	75
25	75
26	74
27	74
28	73
29	72
30	71
31	71

	Muggy (%)	Oppressive (%)
1	15	85
2	14	86
3	14	86
4	13	87
5	13	87
6	13	87
7	12	88
8	12	88
9	12	88
10	11	89
11	11	89
12	11	89
13	11	89
14	10	90
15	10	90
16	10	90
17	10	90
18	10	90
19	10	90
20	10	90
21	10	90
22	11	89
23	11	89
24	12	88
25	12	88
26	13	87
27	14	86
28	15	85
29	15	85
30	16	84
31	17	83

	Avg high (°C)	Avg low (°C)
1	28	23
2	28	23
3	28	23
4	28	23
5	28	23
6	28	23
7	28	23
8	28	23
9	28	23
10	28	23
11	28	23
12	28	23
13	28	23
14	28	23
15	28	23
16	28	23
17	28	23
18	28	23
19	28	23
20	28	23
21	28	23
22	28	23
23	28	23
24	28	23
25	28	23
26	28	23
27	28	23
28	28	23
29	28	23
30	28	23
31	28	23

	Clearer (%)	Cloudier (%)
1	10	90
2	10	90
3	10	90
4	10	90
5	10	90
6	10	90
7	10	90
8	10	90
9	10	90
10	10	90
11	10	90
12	10	90
13	9	91
14	9	91
15	8	92
16	8	92
17	8	92
18	6	94
19	6	94
20	6	94
21	6	94
22	5	95
23	5	95
24	5	95
25	5	95
26	5	95
27	6	94
28	6	94
29	6	94
30	6	94
31	7	93

	Rain chance (%)
1	83
2	83
3	83
4	83
5	83
6	83
7	83
8	82
9	82
10	81
11	81
12	80
13	80
14	79
15	79
16	78
17	78
18	78
19	77
20	77
21	77
22	76
23	76
24	75
25	75
26	74
27	74
28	73
29	72
30	71
31	71

	Muggy (%)	Oppressive (%)
1	15	85
2	14	86
3	14	86
4	13	87
5	13	87
6	13	87
7	12	88
8	12	88
9	12	88
10	11	89
11	11	89
12	11	89
13	11	89
14	10	90
15	10	90
16	10	90
17	10	90
18	10	90
19	10	90
20	10	90
21	10	90
22	11	89
23	11	89
24	12	88
25	12	88
26	13	87
27	14	86
28	15	85
29	15	85
30	16	84
31	17	83