Loa Janan weather in April

In April, Loa Janan sees average daytime highs of 31°C and overnight lows near 24°C, with 307 mm of rain across 27.5 wet days and about 12 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 2% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 hours at the start of April to 12 hours by month's end. Set against the rest of the year, April is Loa Janan's 7th-clearest and 10th-windiest month. For the whole year in context, see Loa Janan's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
24°
11th coldest
Rainfall
307 mm
27.5 wet days
Daylight
12 hours
6:12 AM – 6:11 PM
Cloud cover
86%
7th clearest
Wind
4 km/h
10th windiest
Solar energy
4.82 kWh/m²
Travel score
2.4
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical April day in Loa Janan reaches about 31°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, April runs on par with March and on par with May.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124

How April really feels in Loa Janan

Once humidity and wind are folded in, April averages 30 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
30
26 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Loa Janan weather by month

How April compares with the rest of the year at a glance. April is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°27526.3122.6
Feb31° / 24°24223.5122.7
Mar31° / 24°29926.9122.5
Apr31° / 24°30727.5122.4
May31° / 24°25628.7122.4
Jun31° / 24°21425.7122.8
Jul31° / 23°17823.7123.1
Aug31° / 23°15921.2123.2
Sep32° / 23°16720.8123.0
Oct32° / 24°23326122.5
Nov31° / 24°29428.5122.3
Dec31° / 24°29828.9122.4

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 7% of April, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11090
2991
3991
4991
5991
6991
7991
8991
9991
101090
111090
121090
131090
141090
151090
161090
171090
181090
191090
201090
211090
22991
23991
24991
25991
26991
27892
28892
29991
30991

Chance of precipitation in April

Any precipitation

Loa Janan gets around 307 mm of rain over 27.5 wet days in April, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 92% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
191
291
391
491
591
691
791
891
991
1091
1191
1291
1391
1491
1591
1691
1791
1891
1992
2092
2192
2292
2393
2493
2593
2693
2794
2894
2994
3094

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
111782
211683
301585
401585
501486
601486
701387
801387
901387
1001288
1101288
1201288
1301189
1401189
1501090
1601090
170991
180991
190892
200892
210793
220694
230694
240595
250595
260496
270496
280397
290397
300298

Wind in April

Winds average 4 km/h in April.

Across April, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 hours at the start of April to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over April. Sunrise moves from 6:16 AM to 6:10 AM, and sunset from 6:16 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:166:16
212.06:166:16
312.06:166:15
412.06:166:15
512.06:156:15
612.06:156:14
712.06:156:14
812.06:146:14
912.06:146:14
1012.06:146:13
1112.06:146:13
1212.06:136:13
1312.06:136:12
1412.06:136:12
1512.06:126:12
1612.06:126:11
1712.06:126:11
1812.06:126:11
1912.06:126:11
2012.06:116:10
2112.06:116:10
2212.06:116:10
2312.06:116:10
2412.06:116:09
2512.06:106:09
2612.06:106:09
2712.06:106:09
2812.06:106:09
2912.06:106:09
3012.06:106:08

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.82 kWh/m².

For context, solar energy here swings from a low near 4.42 kWh/m² to a high of 5.34 kWh/m² in September across the year — April's 4.82 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.6Bright
304.6Bright
Planning a trip in April

Is April a good time to visit Loa Janan?

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

2.4
Sightseeing
9th-best month of the year
3.7
Beach & pool
10th-best month of the year

April is a weaker month for outdoor sightseeing in Loa Janan.

What to pack for Loa Janan in April

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

In April, Loa Janan sees daytime highs around 31°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 Loa Janan in April

The nearest coast averages about 29°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 45 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°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Loa Janan in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Loa Janan peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 12UV 15Jul 10UV 11
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme

Air quality in Loa Janan in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Loa Janan is worst in October — around 28 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (March, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1427 µg/m³Mar 1314 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar14Moderate
Apr15Moderate
May14Moderate
Jun15Moderate
Jul15Moderate
Aug16Moderate
Sep23Moderate
Oct28Moderate
Nov17Moderate
Dec15Moderate
Location & terrain

Where is Loa Janan?

Loa Janan sits at 0.6°S, 117.1°E, 9 m above sea level, in Indonesia. The nearest listed city is Samarinda, 12 km away.

AmuntaiBarabaiPalu

Topography around Loa Janan

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

Within 3 km, the terrain around Loa Janan has only modest variations in elevation — a maximum elevation change of 131 m around an average of 25 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 264 m; within 80 km, large variations in elevation — a maximum elevation change of 806 m.

The land around Loa Janan is covered by trees (60%) within 3 km, trees (66%) within 16 km, and trees (58%) and water (30%) within 80 km.

3 km
131 m
16 km
264 m
80 km
806 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
April weather nearby: Samarinda 12 km · Balikpapan 82 km · Bontang 91 km · Muara Teweh 248 km · Tanjung 258 km · Amuntai 289 km · Barabai 293 km · Palu 311 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 Loa Janan (-0.5829°, 117.095°, elevation 9 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. 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).