Wonosobo weather in December

In December, Wonosobo sees average daytime highs of 26°C and overnight lows near 20°C, with 547 mm of rain across 29.1 wet days and about 12.4 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 0% of the time in December, and the air most often feels muggy.

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 Wonosobo's 11th-clearest and 3rd-windiest month. For the whole year in context, see Wonosobo's year-round climate.

Daytime high
26°
7th warmest
Overnight low
20°
11th coldest
Rainfall
547 mm
29.1 wet days
Daylight
12 h 24 min
5:24 AM – 5:49 PM
Cloud cover
94%
11th clearest
Wind
3 km/h
3rd windiest
Solar energy
4.33 kWh/m²
Travel score
3.5
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical December day in Wonosobo reaches about 26°C in the afternoon and slips back to 20°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12620
22620
32620
42620
52620
62620
72620
82620
92620
102620
112620
122620
132620
142620
152620
162620
172620
182620
192620
202620
212620
222620
232620
242620
252620
262620
272620
282620
292620
302620
312620

Wonosobo weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 20°56030.212.43.4
Feb26° / 20°54627.912.23.3
Mar26° / 20°52430.1123.4
Apr26° / 20°37927.711.83.6
May26° / 20°19122.111.74.7
Jun26° / 19°11815.711.65.6
Jul25° / 18°7512.211.66.3
Aug26° / 18°569.511.86.7
Sep26° / 19°8912.7126.0
Oct26° / 19°23920.712.24.8
Nov26° / 20°43727.612.33.7
Dec26° / 20°54729.112.43.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 3% of December, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1397
2397
3397
4397
5397
6397
7397
8397
9397
10397
11397
12397
13397
14397
15397
16397
17397
18397
19397
20397
21397
22397
23397
24397
25397
26397
27397
28397
29397
30397
31496

Chance of precipitation in December

Any precipitation

Wonosobo gets around 547 mm of rain over 29.1 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 94% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
195
295
395
495
595
695
795
895
995
1095
1195
1295
1395
1495
1595
1694
1794
1894
1994
2093
2193
2293
2393
2493
2593
2693
2793
2893
2993
3094
3194

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 95% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
12953
23943
33943
43934
53934
63934
72944
82944
92944
102944
112953
122953
132953
142953
152953
162953
172953
182962
192962
202962
212962
222962
232962
243952
253952
263952
273952
283952
293952
303961
313961

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 4 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
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 5:18 AM to 5:31 AM, and sunset from 5:42 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:185:42
212.45:195:43
312.45:195:43
412.45:195:43
512.45:195:44
612.45:205:44
712.45:205:45
812.45:215:45
912.45:215:46
1012.45:215:46
1112.45:225:47
1212.45:225:47
1312.45:235:48
1412.45:235:48
1512.45:235:49
1612.45:245:49
1712.45:245:50
1812.45:255:50
1912.45:255:51
2012.45:265:51
2112.45:265:52
2212.45:275:52
2312.45:275:53
2412.45:275:53
2512.45:285:54
2612.45:285:54
2712.45:295:54
2812.45:295:55
2912.45:305:55
3012.45:305:56
3112.45:315:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.33 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.33 kWh/m² to a high of 5.75 kWh/m² in September across the year — December's 4.33 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in December

Hazard calendar for Wonosobo

In seasonPeak

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

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

Wonosobo's rainy season runs November–April, when most of the year's rain falls.

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

Is December a good time to visit Wonosobo?

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

3.5
Sightseeing
9th-best month of the year
3.4
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Wonosobo.

What to pack for Wonosobo in December

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

In December, Wonosobo sees daytime highs around 26°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 29 days see rain.

rain gearlight clothes

Sea temperature near Wonosobo 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 May at about 30°C and coldest in February 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
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index in Wonosobo 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 Wonosobo peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 10 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highExtremeMar 15UV 15Jun 10UV 7
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar15Extreme
Apr11Extreme
May7Very high
Jun7Very high
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov8Very high
Dec13Extreme

Air quality in Wonosobo 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 Wonosobo is worst in April — around 58 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (September, 34 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorApr 2158 µg/m³Sep 1134 µg/m³
PM2.5 (µg/m³)Level
Jan48Poor
Feb46Poor
Mar54Poor
Apr58Unhealthy
May57Unhealthy
Jun51Poor
Jul42Poor
Aug35Moderate
Sep34Moderate
Oct37Poor
Nov42Poor
Dec42Poor
Location & terrain

Where is Wonosobo?

Wonosobo sits at 7.4°S, 109.9°E, 794 m above sea level, in Indonesia. The nearest listed city is Magelang, 37 km away.

Topography around Wonosobo

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

Within 3 km, the terrain around Wonosobo has significant variations in elevation — a maximum elevation change of 314 m around an average of 754 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,820 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,396 m.

The land around Wonosobo is covered by trees (67%) and artificial surfaces (24%) within 3 km, trees (83%) within 16 km, and trees (57%) and water (23%) within 80 km.

3 km
314 m
16 km
2,820 m
80 km
3,396 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Magelang 37 km · Kutoarjo 40 km · Mertoyudan 40 km · Weleri 47 km · Muntilan 50 km · Gombong 51 km · Kedungwuni 52 km · Buaran 52 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 Wonosobo (-7.3589°, 109.9031°, elevation 794 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).