Kebomas weather in December

In December, Kebomas sees average daytime highs of 31°C and overnight lows near 26°C, with 274 mm of rain across 28.7 wet days and about 12.4 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 3% of the time in December, and the air most often feels miserable.

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 Kebomas's 10th-clearest and 7th-windiest month. For the whole year in context, see Kebomas's year-round climate.

Daytime high
31°
6th warmest
Overnight low
26°
8th coldest
Rainfall
274 mm
28.7 wet days
Daylight
12 h 24 min
5:13 AM – 5:38 PM
Cloud cover
87%
10th clearest
Wind
7 km/h
7th windiest
Solar energy
5.06 kWh/m²
Travel score
2.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical December day in Kebomas reaches about 31°C in the afternoon and slips back to 26°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13226
23226
33226
43226
53226
63226
73226
83226
93126
103126
113126
123126
133126
143126
153126
163126
173126
183126
193126
203126
213126
223126
233126
243126
253126
263126
273126
283126
293126
303126
313126

How December really feels in Kebomas

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
5 feel dangerously hot (≥ 39°C)
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.

Kebomas weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 25°28029.412.42.4
Feb31° / 25°26127.112.22.4
Mar31° / 26°26828.9122.4
Apr32° / 26°1862411.82.8
May32° / 26°8614.611.73.7
Jun31° / 26°49911.64.5
Jul31° / 25°224.511.65.2
Aug31° / 25°61.511.85.3
Sep32° / 25°203.3124.5
Oct33° / 26°7312.512.23.3
Nov32° / 26°17924.212.32.5
Dec31° / 26°27428.712.42.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% 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 90%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11585
21387
31387
41387
51387
61288
71189
81189
91090
101090
111090
12991
13991
14892
15892
16793
17793
18793
19892
20892
21892
22892
23892
24892
25793
26793
27793
28793
29892
30991
31991

Chance of precipitation in December

Any precipitation

Kebomas gets around 274 mm of rain over 28.7 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 92% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
192
292
392
492
593
693
793
894
994
1094
1194
1294
1394
1494
1594
1694
1793
1893
1993
2092
2192
2291
2391
2491
2591
2691
2791
2891
2991
3091
3192

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 84% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
12575
22377
32278
42179
52080
61981
71882
81783
91684
101684
111585
121486
131486
141486
151486
161387
171486
181486
191486
201486
211486
221585
231585
241585
251684
261684
271684
281684
291684
301684
311684

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
288calm
298calm
308calm
318calm

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 5:08 AM to 5:20 AM, and sunset from 5:31 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:085:31
212.45:085:31
312.45:085:32
412.45:095:32
512.45:095:33
612.45:095:33
712.45:105:34
812.45:105:34
912.45:105:35
1012.45:115:35
1112.45:115:36
1212.45:125:36
1312.45:125:37
1412.45:125:37
1512.45:135:38
1612.45:135:38
1712.45:145:39
1812.45:145:39
1912.45:155:40
2012.45:155:40
2112.45:155:40
2212.45:165:41
2312.45:165:41
2412.45:175:42
2512.45:175:42
2612.45:185:43
2712.45:185:43
2812.45:195:44
2912.45:195:44
3012.45:205:45
3112.45:205:45

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.06 kWh/m².

For context, solar energy here swings from a low near 5.01 kWh/m² to a high of 6.73 kWh/m² in September across the year — December's 5.06 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Kebomas

In seasonPeak

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

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

Kebomas's monsoon runs November–April, when most of the year's rain falls.

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

Is December a good time to visit Kebomas?

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

2.4
Sightseeing
9th-best month of the year
3.6
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Kebomas.

What to pack for Kebomas in December

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

In December, Kebomas sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Kebomas 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 32 km away) is warmest in November 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
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Kebomas 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 Kebomas peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 17UV 13Jun 16UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct11Extreme
Nov10Extreme
Dec11Extreme

Air quality in Kebomas 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 Kebomas is worst in May — around 101 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyMay 13101 µg/m³Aug 2267 µg/m³
PM2.5 (µg/m³)Level
Jan76Unhealthy
Feb71Unhealthy
Mar87Unhealthy
Apr99Unhealthy
May101Unhealthy
Jun95Unhealthy
Jul81Unhealthy
Aug66Unhealthy
Sep69Unhealthy
Oct80Unhealthy
Nov87Unhealthy
Dec81Unhealthy
Location & terrain

Where is Kebomas?

Kebomas sits at 7.2°S, 112.6°E, 36 m above sea level, in Indonesia. The nearest listed city is Gresik, 3.0 km away.

Topography around Kebomas

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

Within 3 km, the terrain around Kebomas has only modest variations in elevation — a maximum elevation change of 112 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 114 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,305 m.

The land around Kebomas is covered by artificial surfaces (64%) and trees (23%) within 3 km, water (34%), cropland (23%) and artificial surfaces (21%) within 16 km, and water (40%), cropland (25%) and trees (24%) within 80 km.

3 km
112 m
16 km
114 m
80 km
3,305 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: Gresik 3.0 km · Kamal 9.0 km · Surabaya 16 km · Bangkalan 18 km · Driyorejo 22 km · Lamongan 25 km · Gedangan 27 km · Krian 28 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 Kebomas (-7.1667°, 112.6333°, elevation 36 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).