Wonosari weather in December

In December, Wonosari sees average daytime highs of 30°C and overnight lows near 24°C, with 310 mm of rain across 27.8 wet days and about 12.5 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 1% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is Wonosari's 12th-clearest and 7th-windiest month. For the whole year in context, see Wonosari's year-round climate.

Daytime high
30°
8th warmest
Overnight low
24°
11th coldest
Rainfall
310 mm
27.8 wet days
Daylight
12 h 30 min
5:20 AM – 5:48 PM
Cloud cover
90%
12th clearest
Wind
8 km/h
7th windiest
Solar energy
4.83 kWh/m²
Travel score
2.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Wonosari reaches about 30°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283024
293024
303024
313024

How December really feels in Wonosari

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.

Wonosari weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°30228.612.42.8
Feb30° / 24°27125.812.32.7
Mar30° / 24°24127.812.12.8
Apr31° / 25°17322.911.83.2
May31° / 24°8313.611.64.3
Jun30° / 24°587.811.55.1
Jul29° / 23°204.411.66.0
Aug29° / 22°132.111.76.4
Sep30° / 23°254.5125.7
Oct30° / 24°8112.812.24.4
Nov30° / 24°20223.312.43.1
Dec30° / 24°31027.812.52.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 5% of December, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1793
2793
3793
4694
5694
6694
7694
8694
9595
10595
11595
12595
13595
14595
15595
16694
17694
18694
19694
20694
21694
22694
23694
24694
25793
26793
27793
28892
29892
30892
31892

Chance of precipitation in December

Any precipitation

Wonosari gets around 310 mm of rain over 27.8 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 90% and peaks near 92% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
289
390
490
591
691
791
892
992
1092
1192
1292
1392
1492
1591
1691
1790
1890
1989
2089
2189
2289
2389
2489
2589
2689
2789
2889
2990
3090
3190

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
116732
216732
316633
416633
516633
616534
716534
816534
916534
1016534
1116534
1216534
1316534
1416534
1516534
1616633
1716633
1816732
1906832
2006832
2106931
2206931
2306931
2407030
2507030
2607129
2707129
2807228
2907228
3007228
3107228

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 24 min at the start of December to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:14 AM to 5:27 AM, and sunset from 5:40 PM to 5:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:145:40
212.45:155:41
312.45:155:41
412.45:155:42
512.45:165:42
612.45:165:43
712.45:165:43
812.45:175:44
912.55:175:44
1012.55:175:45
1112.55:185:45
1212.55:185:46
1312.55:195:46
1412.55:195:47
1512.55:195:47
1612.55:205:48
1712.55:205:48
1812.55:215:49
1912.55:215:49
2012.55:225:50
2112.55:225:50
2212.55:235:50
2312.55:235:51
2412.55:245:51
2512.55:245:52
2612.55:255:52
2712.55:255:53
2812.55:265:53
2912.55:265:54
3012.55:275:54
3112.55:275:54

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.83 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 6.03 kWh/m² in October across the year — December's 4.83 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.8Bright
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
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Wonosari

In seasonPeak

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

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

Wonosari'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 Wonosari?

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

2.8
Sightseeing
9th-best month of the year
3.9
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Wonosari.

What to pack for Wonosari in December

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

In December, Wonosari sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Wonosari 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 18 km away) is warmest in March at about 29°C and coldest in August near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug25Warm
Sep25Warm
Oct26Warm
Nov28Warm
Dec29Tropical

UV index in Wonosari 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 Wonosari peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeMar 13UV 15Jun 15UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May9Very high
Jun6High
Jul10Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov10Very high
Dec12Extreme

Air quality in Wonosari 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 Wonosari is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1823 µg/m³Dec 1514 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar20Moderate
Apr23Moderate
May21Moderate
Jun19Moderate
Jul18Moderate
Aug18Moderate
Sep18Moderate
Oct19Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Wonosari?

Wonosari sits at 8.0°S, 110.6°E, 181 m above sea level, in Indonesia. The nearest listed city is Karangnongko, 19 km away.

Topography around Wonosari

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

Within 3 km, the terrain around Wonosari has only modest variations in elevation — a maximum elevation change of 51 m around an average of 184 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 745 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,224 m.

The land around Wonosari is covered by trees (61%) and artificial surfaces (25%) within 3 km, trees (81%) within 16 km, and trees (53%) and water (29%) within 80 km.

3 km
51 m
16 km
745 m
80 km
3,224 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Karangnongko 19 km · Wedi 25 km · Candi Prambanan 27 km · Pundong 28 km · Trucuk 28 km · Sewon 29 km · Klaten 29 km · Depok 29 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 Wonosari (-7.9656°, 110.6036°, elevation 181 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).