Lumajang weather in August

In August, Lumajang sees average daytime highs of 26°C and overnight lows near 21°C, with 35 mm of rain across 10.4 wet days and about 11.7 hours of daylight. It is the 12th-warmest and 12th-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 12% of the time in August, and the air most often feels muggy.

Daylight stretches from about 11 h 36 min at the start of August to 11 h 48 min by month's end. Set against the rest of the year, August is Lumajang's 3rd-clearest and 1st-windiest month. For the whole year in context, see Lumajang's year-round climate.

Daytime high
26°
12th warmest
Overnight low
21°
1st coldest
Rainfall
35 mm
10.4 wet days
Daylight
11 h 42 min
5:39 AM – 5:23 PM
Cloud cover
62%
3rd clearest
Wind
6 km/h
1st windiest
Solar energy
5.2 kWh/m²
Travel score
6.5
out of 10

Lumajang is district in Lumajang Regency, East Java Province, Indonesia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

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

A typical August day in Lumajang reaches about 26°C in the afternoon and slips back to 21°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°C. Set against its neighbours, August runs on par with July and on par with September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12621
22621
32621
42621
52621
62621
72621
82621
92621
102621
112621
122621
132621
142621
152621
162621
172621
182621
192621
202621
212621
222621
232621
242621
252621
262621
272621
282621
292621
302621
312621

How August really feels in Lumajang

Once humidity and wind are folded in, August averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Lumajang weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°35828.712.42.9
Feb29° / 24°34726.512.32.8
Mar30° / 24°28326.912.13.1
Apr29° / 24°1632311.83.6
May29° / 24°9315.711.65.0
Jun27° / 23°6212.711.55.9
Jul26° / 22°4411.311.66.3
Aug26° / 21°3510.411.76.5
Sep27° / 22°6712.1126.0
Oct28° / 23°9616.812.25.0
Nov29° / 24°22723.512.43.6
Dec29° / 24°3162712.53.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 33% of August, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24753
34753
44753
54753
64753
74753
84654
94654
104654
114654
124555
134555
144555
154555
164555
174555
184555
194555
204555
214555
224555
234456
244456
254357
264357
274357
284258
294258
304258
314258

Chance of precipitation in August

Any precipitation

Lumajang gets around 35 mm of rain over 10.4 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
335
435
535
636
736
836
935
1035
1135
1235
1335
1435
1535
1634
1734
1833
1933
2032
2132
2232
2331
2432
2532
2632
2732
2833
2933
3034
3135

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1258391
2258391
3258391
4258391
5357391
6356401
7357400
8356410
9356410
10355420
11355420
12355420
13355420
14256420
15256420
16256420
17257410
18257410
19257410
20257410
21257410
22256420
23256420
24255430
25254440
26253450
27252460
28251470
29249490
30248500
31246520

Wind in August

Winds average 6 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 36 min at the start of August to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over August. Sunrise moves from 5:44 AM to 5:32 AM, and sunset from 5:22 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:445:22
211.65:445:22
311.75:435:23
411.75:435:23
511.75:435:23
611.75:435:23
711.75:425:23
811.75:425:23
911.75:425:23
1011.75:415:23
1111.75:415:23
1211.75:415:23
1311.75:405:23
1411.75:405:23
1511.75:405:23
1611.75:395:23
1711.75:395:23
1811.75:385:23
1911.85:385:23
2011.85:385:23
2111.85:375:23
2211.85:375:23
2311.85:365:23
2411.85:365:23
2511.85:355:23
2611.85:355:23
2711.85:345:23
2811.85:345:22
2911.85:335:22
3011.85:335:22
3111.85:325:22

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.2 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 5.99 kWh/m² in October across the year — August's 5.2 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in August

Hazard calendar for Lumajang

In seasonPeak

None of Lumajang's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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

Lumajang'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 August a good time to visit Lumajang?

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

6.5
Sightseeing
1st-best month of the year
6.3
Beach & pool
1st-best month of the year

August is a reasonable time to visit Lumajang for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Lumajang in August

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

In August, Lumajang sees daytime highs around 26°C and nights near 21°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Lumajang in August

The nearest coast averages about 25°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 29 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 Lumajang in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Lumajang peaks around March 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 21UV 13Jun 17UV 8
UV index (midday)Level
Jan12Extreme
Feb10Extreme
Mar13Extreme
Apr13Extreme
May10Very high
Jun7Very high
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Air quality in Lumajang in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Lumajang is worst in May — around 38 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (September, 23 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 1138 µg/m³Sep 1523 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb31Moderate
Mar37Poor
Apr38Poor
May38Poor
Jun36Poor
Jul31Moderate
Aug25Moderate
Sep23Moderate
Oct26Moderate
Nov28Moderate
Dec30Moderate
Location & terrain

Where is Lumajang?

Lumajang sits at 8.1°S, 113.2°E, 56 m above sea level, in Indonesia. The nearest listed city is Kencong, 23 km away.

Topography around Lumajang

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

Within 3 km, the terrain around Lumajang has only modest variations in elevation — a maximum elevation change of 45 m around an average of 54 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 841 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,644 m.

The land around Lumajang is covered by cropland (51%) and artificial surfaces (31%) within 3 km, trees (60%) and cropland (29%) within 16 km, and trees (46%) and water (39%) within 80 km.

3 km
45 m
16 km
841 m
80 km
3,644 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Kencong 23 km · Probolinggo 42 km · Kraksaan 46 km · Jember 52 km · Dampit 53 km · Pasuruan 65 km · Gongdanglegi Kulon 65 km · Lawang 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 Lumajang (-8.1335°, 113.2248°, elevation 56 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).