Serpong in Spring
In spring (September, October and November), Serpong sees average daytime highs around 32°C and overnight lows near 24°C, with 402 mm of rain over about 55 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across spring, daytime highs hold fairly steady around 32°C. The sky is clear or mostly clear about 15% of the time across spring, and the air most often feels oppressive.
Spring is Serpong's 2nd-best season to visit on our travel score. Serpong has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Serpong's year-round climate.
- Avg daytime high
- 32°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 402 mm
- 55 wet days
- Avg wind
- 6 km/h
- Travel score
- 3.2
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Serpong in Spring
Across spring, daytime highs hold fairly steady around 32°C.
A typical spring day in Serpong reaches about 32°C and drops to 24°C overnight. The warmest of the three months is September, the coolest September.
How spring really feels in Serpong
Once humidity and wind are folded in, spring brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Serpong weather by month
How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 24° | 299 | 28.2 | 12.3 | 2.9 |
| Feb | 30° / 24° | 278 | 26.9 | 12.2 | 2.7 |
| Mar | 30° / 24° | 243 | 28.4 | 12 | 2.7 |
| Apr | 31° / 24° | 201 | 25.9 | 11.9 | 2.8 |
| May | 31° / 24° | 118 | 20.9 | 11.7 | 3.4 |
| Jun | 31° / 24° | 85 | 14.7 | 11.6 | 4.0 |
| Jul | 31° / 23° | 67 | 12.4 | 11.7 | 4.2 |
| Aug | 32° / 24° | 43 | 8.8 | 11.8 | 4.3 |
| Sep | 32° / 24° | 57 | 11.1 | 12 | 3.8 |
| Oct | 32° / 24° | 129 | 18.5 | 12.1 | 3.2 |
| Nov | 31° / 24° | 216 | 25.7 | 12.3 | 2.7 |
| Dec | 30° / 24° | 264 | 26.4 | 12.4 | 2.9 |
Cloud cover in Spring
The sky is clear or mostly clear about 15% of the time across spring.
Chance of precipitation in Spring
Serpong gets around 402 mm of rain over 55 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 6 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 54 min in early September to 12 h 18 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.8 kWh/m².
Hazard calendar for Serpong
In spring, Serpong overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
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.
Is spring a good time to visit Serpong?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Serpong.
What to pack for Serpong in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Serpong sees daytime highs around 32°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 55 days see rain.
Sea temperature near Serpong in Spring
The nearest coast averages about 29°C across spring — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 30 | Tropical |
| Dec | 29 | Tropical |
UV index in Serpong in Spring
Clear-sky midday UV across spring averages around 8 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 12 | 16 | 10 | 9 | 7 | 8 | 9 | 10 | 9 | 6 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Very high | Very high | High | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 12 | Extreme |
| Mar | 16 | Extreme |
| Apr | 10 | Extreme |
| May | 9 | Very high |
| Jun | 7 | Very high |
| Jul | 8 | Very high |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 9 | Very high |
| Nov | 6 | High |
| Dec | 11 | Extreme |
Air quality in Serpong in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 39 | 41 | 51 | 62 | 74 | 69 | 67 | 67 | 70 | 69 | 61 | 38 |
| Level | Poor | Poor | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 39 | Poor |
| Feb | 41 | Poor |
| Mar | 51 | Poor |
| Apr | 62 | Unhealthy |
| May | 74 | Unhealthy |
| Jun | 69 | Unhealthy |
| Jul | 67 | Unhealthy |
| Aug | 67 | Unhealthy |
| Sep | 70 | Unhealthy |
| Oct | 69 | Unhealthy |
| Nov | 61 | Unhealthy |
| Dec | 38 | Poor |
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.
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
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.