Lawang weather in May

In May, Lawang sees average daytime highs of 29°C and overnight lows near 21°C, with 81 mm of rain across 14.5 wet days and about 11.6 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of May to 11 h 36 min by month's end. Set against the rest of the year, May is Lawang's 6th-clearest and 6th-windiest month. For the whole year in context, see Lawang's year-round climate.

Daytime high
29°
5th warmest
Overnight low
21°
6th coldest
Rainfall
81 mm
14.5 wet days
Daylight
11 h 36 min
5:36 AM – 5:15 PM
Cloud cover
62%
6th clearest
Wind
4 km/h
6th windiest
Solar energy
4.99 kWh/m²
Travel score
4.9
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Lawang reaches about 29°C in the afternoon and slips back to 21°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, May runs on par with April and on par with June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
192921
202921
212921
222921
232921
242921
252921
262921
272921
282921
292921
302921
312921

How May really feels in Lawang

Once humidity and wind are folded in, May 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

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

Lawang weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 21°51229.712.43.1
Feb28° / 21°48927.312.33.0
Mar28° / 21°42928.912.13.2
Apr29° / 21°2362411.83.7
May29° / 21°8114.511.64.9
Jun29° / 20°388.711.65.6
Jul29° / 19°21511.66.2
Aug29° / 19°10311.76.3
Sep30° / 20°214.5125.6
Oct31° / 21°7010.712.24.6
Nov30° / 22°21020.912.43.5
Dec29° / 22°42028.612.43.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 24% of May, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
44060
54060
64060
73961
84060
94159
104159
114357
124456
134555
144654
154753
164852
175050
185149
195248
205347
215446
225446
235545
245545
255545
265545
275545
285446
295446
305347
315347

Chance of precipitation in May

Any precipitation

Lawang gets around 81 mm of rain over 14.5 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
158
257
356
455
554
653
752
851
950
1049
1149
1248
1347
1447
1546
1645
1745
1844
1944
2043
2143
2243
2342
2442
2541
2641
2740
2839
2939
3038
3137

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
123365
233463
333562
433661
533760
643759
743858
843957
944056
1054154
1154253
1264351
1364449
1474548
1574647
1684745
1784744
1894843
1994842
20104842
21104841
22114940
23114939
24124939
25125038
26125137
27125137
28125236
29125236
30135235
31135334

Wind in May

Winds average 4 km/h in May.

Across May, 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 May

DaylightNight

Daylight runs from about 11 h 42 min at the start of May to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 5:35 AM to 5:39 AM, and sunset from 5:18 PM to 5:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:355:18
211.75:355:18
311.75:355:18
411.75:355:17
511.75:355:17
611.75:355:17
711.75:355:17
811.75:355:16
911.75:355:16
1011.75:355:16
1111.75:355:16
1211.75:365:15
1311.75:365:15
1411.75:365:15
1511.65:365:15
1611.65:365:15
1711.65:365:15
1811.65:365:15
1911.65:375:14
2011.65:375:14
2111.65:375:14
2211.65:375:14
2311.65:375:14
2411.65:385:14
2511.65:385:14
2611.65:385:14
2711.65:385:14
2811.65:385:14
2911.65:395:14
3011.65:395:14
3111.65:395:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.99 kWh/m².

For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 6.2 kWh/m² in September across the year — May's 4.99 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Lawang

In seasonPeak

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

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

Lawang's monsoon runs December–April, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Lawang?

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

4.9
Sightseeing
5th-best month of the year
6.3
Beach & pool
6th-best month of the year

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

What to pack for Lawang in May

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

In May, Lawang sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Lawang in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 km away) is warmest in November at about 30°C and coldest in August near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index in Lawang in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lawang peaks around March 18 at about 15 (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 18UV 15Jun 17UV 8
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun8Very high
Jul10Extreme
Aug12Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec11Extreme

Air quality in Lawang in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Lawang is worst in May — around 101 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyMay 13101 µg/m³Aug 2267 µg/m³
PM2.5 (µg/m³)Level
Jan76Unhealthy
Feb71Unhealthy
Mar87Unhealthy
Apr99Unhealthy
May101Unhealthy
Jun95Unhealthy
Jul81Unhealthy
Aug66Unhealthy
Sep69Unhealthy
Oct80Unhealthy
Nov87Unhealthy
Dec81Unhealthy
Location & terrain

Where is Lawang?

Lawang sits at 7.8°S, 112.7°E, 509 m above sea level, in Indonesia. The nearest listed city is Singosari, 7.0 km away.

Topography around Lawang

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

Within 3 km, the terrain around Lawang has significant variations in elevation — a maximum elevation change of 369 m around an average of 538 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 3,237 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,645 m.

The land around Lawang is covered by trees (58%) and artificial surfaces (24%) within 3 km, trees (65%) within 16 km, and trees (46%), water (24%) and cropland (20%) within 80 km.

3 km
369 m
16 km
3,237 m
80 km
3,645 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Singosari 7.0 km · Malang 18 km · Batu 19 km · Prigen 19 km · Pandaan 20 km · Pakisaji 28 km · Bangil 30 km · Pasuruan 32 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 Lawang (-7.8353°, 112.6947°, elevation 509 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).