Muntilan weather in January

In January, Muntilan sees average daytime highs of 28°C and overnight lows near 20°C, with 421 mm of rain across 28.7 wet days and about 12.4 hours of daylight. It is the 6th-warmest and 1st-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 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 Muntilan's 10th-clearest and 8th-windiest month. For the whole year in context, see Muntilan's year-round climate.

Daytime high
28°
6th warmest
Overnight low
20°
7th coldest
Rainfall
421 mm
28.7 wet days
Daylight
12 h 24 min
5:36 AM – 6:00 PM
Cloud cover
92%
10th clearest
Wind
4 km/h
8th windiest
Solar energy
4.41 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 28°C through the month.

A typical January day in Muntilan reaches about 28°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°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)
12720
22720
32720
42720
52720
62820
72820
82820
92820
102820
112820
122820
132820
142820
152820
162820
172820
182820
192820
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820
312820

Muntilan weather by month

How January compares with the rest of the year at a glance. January is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°42128.712.43.4
Feb28° / 20°41227.112.23.3
Mar28° / 20°39028.812.13.3
Apr28° / 21°31226.311.83.4
May28° / 20°16520.811.74.4
Jun27° / 20°11816.211.65.3
Jul27° / 19°8513.611.65.9
Aug27° / 18°661211.86.1
Sep27° / 19°10216125.4
Oct28° / 20°22122.912.24.4
Nov28° / 20°37727.812.33.5
Dec28° / 20°39428.112.43.5

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 4% of January, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1694
2694
3694
4694
5694
6694
7793
8793
9793
10793
11793
12793
13793
14793
15694
16694
17595
18496
19496
20397
21397
22397
23298
24298
25298
26298
27199
28199
29199
30199
31199

Chance of precipitation in January

Any precipitation

Muntilan gets around 421 mm of rain over 28.7 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 93% and peaks near 97% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
289
389
490
590
690
790
890
990
1090
1190
1291
1391
1491
1592
1692
1793
1893
1994
2094
2194
2295
2395
2495
2596
2696
2796
2897
2997
3097
3197

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
16040
26040
36040
46040
56040
66040
76040
86040
95941
105941
115842
125842
135743
145743
155644
165545
175446
185347
195149
205050
214951
224852
234753
244753
254753
264753
274753
284753
294852
304852
314852

Wind in January

Winds average 4 km/h in January.

Across January, 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
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
183calm
193calm
203calm
213calm
223calm
233calm
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 5:29 AM to 5:42 AM, and sunset from 5:55 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:295:55
212.45:295:55
312.45:305:56
412.45:305:56
512.45:315:57
612.45:315:57
712.45:325:57
812.45:325:58
912.45:335:58
1012.45:335:58
1112.45:345:59
1212.45:345:59
1312.45:355:59
1412.45:355:59
1512.45:366:00
1612.45:366:00
1712.45:376:00
1812.45:376:00
1912.45:386:01
2012.45:386:01
2112.45:386:01
2212.45:396:01
2312.45:396:01
2412.45:406:02
2512.45:406:02
2612.45:406:02
2712.45:416:02
2812.35:416:02
2912.35:426:02
3012.35:426:02
3112.35:426:02

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.41 kWh/m².

For context, solar energy here swings from a low near 4.38 kWh/m² to a high of 5.74 kWh/m² in September across the year — January's 4.41 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
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 Muntilan

In seasonPeak

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

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

Muntilan's rainy season runs October–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 Muntilan?

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

3.4
Sightseeing
9th-best month of the year
3.7
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Muntilan.

What to pack for Muntilan in January

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

In January, Muntilan sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

Sea temperature near Muntilan 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 38 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
May29Tropical
Jun28Warm
Jul26Warm
Aug25Warm
Sep25Warm
Oct26Warm
Nov28Warm
Dec29Tropical

UV index in Muntilan 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 Muntilan peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 14 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeExtremeMar 14UV 15Jun 14UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr12Extreme
May8Very high
Jun6High
Jul10Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov9Very high
Dec11Extreme

Air quality in Muntilan 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 Muntilan 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 Muntilan?

Muntilan sits at 7.6°S, 110.3°E, 377 m above sea level, in Indonesia. The nearest listed city is Mertoyudan, 10 km away.

Topography around Muntilan

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

Within 3 km, the terrain around Muntilan has only modest variations in elevation — a maximum elevation change of 183 m around an average of 378 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,897 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,291 m.

The land around Muntilan is covered by trees (40%), cropland (31%) and artificial surfaces (26%) within 3 km, trees (73%) within 16 km, and trees (58%) within 80 km.

3 km
183 m
16 km
1,897 m
80 km
3,291 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Mertoyudan 10 km · Magelang 15 km · Sleman 16 km · Melati 19 km · Godean 21 km · Gamping Lor 24 km · Depok 25 km · Yogyakarta 26 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 Muntilan (-7.5811°, 110.2928°, elevation 377 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).