Welahan in Spring
In spring (September, October and November), Welahan sees average daytime highs around 33°C and overnight lows near 24°C, with 472 mm of rain over about 47 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 33°C. The sky is clear or mostly clear about 20% of the time across spring, and the air most often feels oppressive.
Spring is Welahan's 2nd-best season to visit on our travel score. Welahan 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 Welahan's year-round climate.
- Avg daytime high
- 33°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 472 mm
- 47 wet days
- Avg wind
- 6 km/h
- Travel score
- 3.1
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Welahan in Spring
Across spring, daytime highs hold fairly steady around 33°C.
A typical spring day in Welahan reaches about 33°C and drops to 24°C overnight. The warmest of the three months is October, the coolest September.
How spring really feels in Welahan
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.
Welahan 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° | 408 | 30 | 12.4 | 2.6 |
| Feb | 30° / 24° | 363 | 27.2 | 12.2 | 2.6 |
| Mar | 31° / 24° | 361 | 29.2 | 12 | 2.5 |
| Apr | 31° / 24° | 273 | 26.2 | 11.9 | 2.6 |
| May | 31° / 24° | 129 | 18.7 | 11.7 | 3.4 |
| Jun | 31° / 24° | 79 | 12.4 | 11.6 | 4.1 |
| Jul | 32° / 23° | 43 | 7.7 | 11.6 | 4.5 |
| Aug | 32° / 23° | 22 | 5 | 11.8 | 4.5 |
| Sep | 33° / 24° | 40 | 6.3 | 12 | 3.9 |
| Oct | 33° / 24° | 136 | 15.3 | 12.2 | 3.1 |
| Nov | 32° / 24° | 297 | 25.6 | 12.3 | 2.4 |
| Dec | 31° / 24° | 424 | 29.4 | 12.4 | 2.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 20% of the time across spring.
Chance of precipitation in Spring
Welahan gets around 472 mm of rain over 47 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 24 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 6.3 kWh/m².
Hazard calendar for Welahan
In spring, Welahan overlaps its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.
Welahan sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Welahan's monsoon runs November–April, when most of the year's rain falls.
Is spring a good time to visit Welahan?
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 Welahan.
What to pack for Welahan in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Welahan sees daytime highs around 33°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 47 days see rain.
Sea temperature near Welahan 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 22 km away) is warmest in November at about 30°C and coldest in February near 28°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 | 28 | 29 | 30 | 30 | 29 | 29 | 28 | 29 | 29 | 30 | 30 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 28 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 30 | Tropical |
| Dec | 30 | Tropical |
UV index in Welahan in Spring
Clear-sky midday UV across spring averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Welahan peaks around March 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 16 at about 7 (very 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) | 10 | 12 | 14 | 11 | 8 | 8 | 9 | 11 | 12 | 11 | 7 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | High | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Extreme |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 7 | High |
| Dec | 12 | Extreme |
Air quality in Welahan 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 Welahan is worst in May — around 45 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 31 | 29 | 35 | 39 | 45 | 42 | 38 | 35 | 37 | 39 | 37 | 34 |
| Level | Moderate | Moderate | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Poor | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 31 | Moderate |
| Feb | 29 | Moderate |
| Mar | 35 | Poor |
| Apr | 39 | Poor |
| May | 45 | Poor |
| Jun | 42 | Poor |
| Jul | 38 | Poor |
| Aug | 35 | Poor |
| Sep | 37 | Poor |
| Oct | 39 | Poor |
| Nov | 37 | Poor |
| Dec | 34 | Moderate |
Where is Welahan?
Welahan sits at 6.8°S, 110.7°E, 4 m above sea level, in Indonesia. The nearest listed city is Pecangaan, 11 km away.
Topography around Welahan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Welahan.
Within 3 km, the terrain around Welahan has only modest variations in elevation — a maximum elevation change of 11 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 282 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,105 m.
The land around Welahan is covered by cropland (68%) within 3 km, cropland (56%) within 16 km, and water (38%), trees (35%) and cropland (20%) 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 Welahan (-6.8°, 110.7167°, elevation 4 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.