Pelabuhanratu weather in January

In January, Pelabuhanratu sees average daytime highs of 27°C and overnight lows near 22°C, with 389 mm of rain across 29.3 wet days and about 12.4 hours of daylight. It is the 12th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 2% of the time in January, and the air most often feels oppressive.

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 Pelabuhanratu's 10th-clearest and 5th-windiest month. For the whole year in context, see Pelabuhanratu's year-round climate.

Daytime high
27°
12th warmest
Overnight low
22°
7th coldest
Rainfall
389 mm
29.3 wet days
Daylight
12 h 24 min
5:52 AM – 6:14 PM
Cloud cover
90%
10th clearest
Wind
8 km/h
5th windiest
Solar energy
4.49 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 27°C through the month.

A typical January day in Pelabuhanratu reaches about 27°C in the afternoon and slips back to 22°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12722
22722
32722
42722
52722
62722
72722
82722
92722
102722
112722
122722
132722
142722
152722
162722
172722
182722
192722
202722
212722
222722
232722
242722
252722
262722
272722
282722
292722
302722
312722

Pelabuhanratu weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°38929.312.43.4
Feb27° / 22°34826.512.23.4
Mar28° / 23°36229.2123.4
Apr28° / 23°29726.611.93.5
May28° / 23°19721.811.74.2
Jun28° / 22°11715.711.65.1
Jul28° / 22°10212.211.66.0
Aug28° / 21°739.611.86.4
Sep28° / 22°12312.4125.8
Oct28° / 22°25720.812.24.6
Nov28° / 23°41826.312.33.7
Dec27° / 23°45028.912.43.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% 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 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1694
2793
3892
4892
5892
6892
7892
8892
9991
10892
11892
12892
13892
14892
15892
16793
17694
18694
19595
20595
21595
22496
23496
24496
25496
26298
27298
28298
29298
30298
31298

Chance of precipitation in January

Any precipitation

Pelabuhanratu gets around 389 mm of rain over 29.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 95% and peaks near 97% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
194
294
394
494
594
694
794
894
994
1093
1193
1294
1394
1494
1594
1694
1795
1895
1995
2095
2196
2296
2396
2496
2596
2696
2797
2897
2997
3097
3197

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
1793
2793
3694
4694
5793
6793
7793
8793
9793
10793
11793
12793
13793
14793
15694
16694
17694
18694
19595
20595
21595
22595
23496
24496
25496
26496
27496
28496
29496
30496
31496

Wind in January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 7 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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 5:45 AM to 5:58 AM, and sunset from 6:09 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:456:09
212.45:456:09
312.45:466:10
412.45:466:10
512.45:476:11
612.45:476:11
712.45:486:11
812.45:486:12
912.45:496:12
1012.45:496:12
1112.45:506:13
1212.45:506:13
1312.45:516:13
1412.45:516:14
1512.45:526:14
1612.45:526:14
1712.45:536:14
1812.45:536:15
1912.45:536:15
2012.45:546:15
2112.35:546:15
2212.35:556:15
2312.35:556:15
2412.35:556:16
2512.35:566:16
2612.35:566:16
2712.35:576:16
2812.35:576:16
2912.35:576:16
3012.35:586:16
3112.35:586:16

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.49 kWh/m².

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 5.82 kWh/m² in September across the year — January's 4.49 kWh/m² sits near the bottom.

024151015202531
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
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
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 January

Hazard calendar for Pelabuhanratu

In seasonPeak

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

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

Pelabuhanratu'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 Pelabuhanratu?

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
3.5
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in Pelabuhanratu.

What to pack for Pelabuhanratu in January

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

In January, Pelabuhanratu sees daytime highs around 27°C and nights near 22°C. Pack rain gear. Worth having: light clothes. About 29 days see rain.

rain gearlight clothes

Sea temperature near Pelabuhanratu 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 25 km away) is warmest in April at about 29°C and coldest in September near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Warm
Aug27Warm
Sep26Warm
Oct27Warm
Nov28Tropical
Dec29Tropical

UV index in Pelabuhanratu 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 Pelabuhanratu peaks around March 11 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 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 highExtremeVery highExtremeMar 11UV 16Nov 15UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov6High
Dec13Extreme

Air quality in Pelabuhanratu 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 Pelabuhanratu is worst in May — around 104 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (January, 54 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyMay 23104 µg/m³Jan 1054 µg/m³
PM2.5 (µg/m³)Level
Jan54Poor
Feb60Unhealthy
Mar69Unhealthy
Apr83Unhealthy
May104Unhealthy
Jun102Unhealthy
Jul100Unhealthy
Aug87Unhealthy
Sep77Unhealthy
Oct73Unhealthy
Nov69Unhealthy
Dec54Poor
Location & terrain

Where is Pelabuhanratu?

Pelabuhanratu sits at 7.0°S, 106.6°E, 21 m above sea level, in Indonesia. The nearest listed city is Cicurug, 34 km away.

Topography around Pelabuhanratu

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

Within 3 km, the terrain around Pelabuhanratu has large variations in elevation — a maximum elevation change of 606 m around an average of 111 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,623 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,993 m.

The land around Pelabuhanratu is covered by trees (60%) and water (22%) within 3 km, trees (68%) and water (24%) within 16 km, and trees (60%) and water (30%) within 80 km.

3 km
606 m
16 km
1,623 m
80 km
2,993 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Cicurug 34 km · Sukabumi 42 km · Caringin 43 km · Ciampea 51 km · Bogor 51 km · Cibinong 65 km · Parung 66 km · Citeureup 67 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 Pelabuhanratu (-6.9875°, 106.5514°, elevation 21 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).