Wonosobo weather in January

In January, Wonosobo sees average daytime highs of 26°C and overnight lows near 20°C, with 560 mm of rain across 30.2 wet days and about 12.4 hours of daylight. It is the 9th-warmest and 1st-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 1% of the time in January, and the air most often feels muggy.

Daylight stretches from about 12 h 24 min at the start of January to 12 h 18 min by month's end. Set against the rest of the year, January is Wonosobo's 10th-clearest and 1st-windiest month. For the whole year in context, see Wonosobo's year-round climate.

Daytime high
26°
9th warmest
Overnight low
20°
7th coldest
Rainfall
560 mm
30.2 wet days
Daylight
12 h 24 min
5:38 AM – 6:01 PM
Cloud cover
93%
10th clearest
Wind
4 km/h
1st windiest
Solar energy
4.4 kWh/m²
Travel score
3.4
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

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

A typical January 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, January runs on par with December and on par with February.

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 January compares with the rest of the year at a glance. January is the 9th-warmest and 1st-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 2% of January, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1496
2496
3496
4496
5496
6496
7496
8496
9496
10496
11496
12496
13496
14496
15397
16397
17397
18298
19298
20199
21199
22199
23199
24199
25199
26199
27199
28199
290100
300100
310100

Chance of precipitation in January

Any precipitation

Wonosobo gets around 560 mm of rain over 30.2 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 97% and peaks near 100% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
194
294
394
495
595
695
795
895
996
1096
1196
1296
1397
1497
1597
1697
1798
1898
1998
2099
2199
2299
2399
2499
2599
26100
27100
28100
29100
30100
31100

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
13961
23961
33961
43961
53961
63961
73961
83961
92971
102971
112971
122962
132962
142962
151972
161972
171963
181963
190973
200973
210973
220973
230964
240964
250964
260964
270964
280964
290964
300964
310964

Wind in January

Winds average 4 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 4 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
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 24 min at the start of January to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over January. Sunrise moves from 5:31 AM to 5:44 AM, and sunset from 5:56 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:315:56
212.45:315:57
312.45:325:57
412.45:325:57
512.45:335:58
612.45:335:58
712.45:345:58
812.45:345:59
912.45:355:59
1012.45:355:59
1112.45:366:00
1212.45:366:00
1312.45:376:00
1412.45:376:01
1512.45:386:01
1612.45:386:01
1712.45:396:01
1812.45:396:02
1912.45:396:02
2012.45:406:02
2112.45:406:02
2212.45:416:02
2312.45:416:03
2412.45:426:03
2512.45:426:03
2612.35:426:03
2712.35:436:03
2812.35:436:03
2912.35:436:03
3012.35:446:03
3112.35:446:03

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.4 kWh/m².

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 — January's 4.4 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in January

Hazard calendar for Wonosobo

In seasonPeak

In January, 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 January a good time to visit Wonosobo?

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

3.4
Sightseeing
10th-best month of the year
3.3
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Wonosobo.

What to pack for Wonosobo in January

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

In January, Wonosobo sees daytime highs around 26°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 30 days see rain.

rain gearlight clothes

Sea temperature near Wonosobo in January

The nearest coast averages about 29°C in January — 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 January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 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 January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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
January 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).