Serpong weather in May

In May, Serpong sees average daytime highs of 31°C and overnight lows near 24°C, with 118 mm of rain across 20.9 wet days and about 11.7 hours of daylight. It is the 5th-warmest and 8th-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 21% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of May to 11 h 42 min by month's end. Set against the rest of the year, May is Serpong's 5th-clearest and 12th-windiest month. For the whole year in context, see Serpong's year-round climate.

Daytime high
31°
5th warmest
Overnight low
24°
8th coldest
Rainfall
118 mm
20.9 wet days
Daylight
11 h 42 min
5:58 AM – 5:41 PM
Cloud cover
66%
5th clearest
Wind
5 km/h
12th windiest
Solar energy
5.07 kWh/m²
Travel score
3.4
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Serpong reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 32°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
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
313124

How May really feels in Serpong

Once humidity and wind are folded in, May averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Serpong weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°29928.212.32.9
Feb30° / 24°27826.912.22.7
Mar30° / 24°24328.4122.7
Apr31° / 24°20125.911.92.8
May31° / 24°11820.911.73.4
Jun31° / 24°8514.711.64.0
Jul31° / 23°6712.411.74.2
Aug32° / 24°438.811.84.3
Sep32° / 24°5711.1123.8
Oct32° / 24°12918.512.13.2
Nov31° / 24°21625.712.32.7
Dec30° / 24°26426.412.42.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23169
33169
43169
53268
63367
73367
83466
93466
103565
113664
123862
133961
144060
154258
164456
174456
184555
194654
204852
214951
225050
235050
244951
254951
264951
274951
284852
294852
304852
314753

Chance of precipitation in May

Any precipitation

Serpong gets around 118 mm of rain over 20.9 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 68% and peaks near 80% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
180
279
379
479
578
677
777
876
975
1074
1173
1272
1371
1469
1568
1666
1765
1864
1963
2062
2161
2260
2359
2459
2559
2658
2758
2858
2958
3058
3158

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

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
104456
204456
304456
404456
504456
604456
704555
804555
904654
1004753
1104753
1204852
1305050
1405149
1505248
1615346
1715445
1815544
1915643
2015841
2115940
2216039
2316138
2416336
2516435
2616534
2716633
2816633
2916732
3016831
3116930

Wind in May

Winds average 5 km/h in May, the calmest month.

Across May, daily wind ranges from about 5 km/h on the calmest days to 6 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
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 48 min at the start of May to 11 h 42 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 5:57 AM to 6:01 AM, and sunset from 5:44 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:575:44
211.85:575:44
311.85:575:43
411.85:575:43
511.85:575:43
611.85:575:43
711.85:575:42
811.75:575:42
911.75:575:42
1011.75:585:42
1111.75:585:42
1211.75:585:42
1311.75:585:41
1411.75:585:41
1511.75:585:41
1611.75:585:41
1711.75:585:41
1811.75:585:41
1911.75:595:41
2011.75:595:41
2111.75:595:41
2211.75:595:41
2311.75:595:41
2411.75:595:40
2511.76:005:40
2611.76:005:40
2711.76:005:40
2811.76:005:41
2911.76:005:41
3011.76:015:41
3111.76:015:41

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.07 kWh/m².

For context, solar energy here swings from a low near 4.68 kWh/m² to a high of 6.15 kWh/m² in September across the year — May's 5.07 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Serpong

In seasonPeak

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

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

Serpong's rainy season runs November–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 May a good time to visit Serpong?

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

3.4
Sightseeing
5th-best month of the year
5.0
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Serpong.

What to pack for Serpong in May

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

In May, Serpong sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Serpong 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 49 km away) is warmest in May at about 30°C and coldest in January near 29°C.

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

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Serpong in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Serpong peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 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 highMar 16UV 15Nov 14UV 6
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar16Extreme
Apr10Extreme
May9Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep10Very high
Oct9Very high
Nov6High
Dec11Extreme

Air quality in Serpong 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 Serpong is worst in May — around 74 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (December, 38 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorMay 2073 µg/m³Dec 2438 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb41Poor
Mar51Poor
Apr62Unhealthy
May74Unhealthy
Jun69Unhealthy
Jul67Unhealthy
Aug67Unhealthy
Sep70Unhealthy
Oct69Unhealthy
Nov61Unhealthy
Dec38Poor
Location & terrain

Where is Serpong?

Serpong sits at 6.3°S, 106.7°E, 49 m above sea level, in Indonesia. The nearest listed city is South Tangerang, 7.0 km away.

Topography around Serpong

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

Within 3 km, the terrain around Serpong has only modest variations in elevation — a maximum elevation change of 50 m around an average of 43 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 325 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,001 m.

The land around Serpong is covered by artificial surfaces (55%) and trees (37%) within 3 km, artificial surfaces (51%) and trees (39%) within 16 km, and trees (46%) and water (26%) within 80 km.

3 km
50 m
16 km
325 m
80 km
3,001 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: South Tangerang 7.0 km · Pamulang 9.0 km · Ciputat 9.0 km · Curug 13 km · Parung 14 km · Sawangan 15 km · Tangerang 16 km · Depok 19 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 Serpong (-6.3169°, 106.6642°, elevation 49 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).