Soe weather in September

In September, Soe sees average daytime highs of 30°C and overnight lows near 16°C, with 21 mm of rain across 3.1 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 42% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Soe's 1st-clearest and 3rd-windiest month. For the whole year in context, see Soe's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
16°
3rd coldest
Rainfall
21 mm
3.1 wet days
Daylight
11 h 54 min
5:39 AM – 5:36 PM
Cloud cover
47%
1st clearest
Wind
6 km/h
3rd windiest
Solar energy
6.86 kWh/m²
Travel score
6.2
out of 10

Soe is capital of South Central Timor, West Timor, Indonesia.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Soe reaches about 30°C in the afternoon and slips back to 16°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12916
22916
32916
42916
52916
62916
72916
82916
92916
102916
112916
122916
132916
142916
153016
163016
173016
183017
193017
203017
213017
223017
233017
243017
253017
263017
273017
283017
293017
303017

Soe weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°32228.812.53.5
Feb27° / 20°28926.212.33.5
Mar28° / 20°2742512.14.0
Apr28° / 19°15117.311.84.8
May28° / 18°7912.911.65.8
Jun27° / 17°418.411.46.6
Jul27° / 16°276.411.57.0
Aug28° / 16°133.211.77.2
Sep30° / 16°213.111.96.2
Oct31° / 18°64812.25.1
Nov30° / 19°1781712.53.9
Dec29° / 20°33027.512.63.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16733
26733
36733
46733
56733
66832
76733
86733
96733
106733
116733
126733
136733
146733
156634
166733
176733
186733
196733
206733
216733
226733
236733
246634
256634
266535
276535
286436
296436
306436

Chance of precipitation in September

Any precipitation

Soe gets around 21 mm of rain over 3.1 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 11% and peaks near 18% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
17
27
37
47
57
67
77
88
98
108
118
129
139
149
1510
1610
1711
1811
1912
2012
2113
2213
2314
2414
2515
2615
2716
2817
2917
3018

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11441387
21541377
31541377
41541376
51542376
61542366
71543366
81443366
91443366
101444366
111444366
121444366
131443366
141443366
151443376
161442377
171441377
181440388
191439388
201438399
2113383910
2213373910
2313364011
2413354012
2512354012
2611354013
2711344014
2810344115
299344116
308344117

Wind in September

Winds average 6 km/h in September.

Across September, 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.

0246810151015202530
Wind speed (km/h)Feels
16calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 5:48 AM to 5:30 AM, and sunset from 5:37 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:485:37
211.85:485:37
311.85:475:37
411.85:465:37
511.85:465:37
611.95:455:36
711.95:455:36
811.95:445:36
911.95:435:36
1011.95:435:36
1111.95:425:36
1211.95:415:36
1311.95:415:36
1411.95:405:36
1511.95:395:36
1611.95:395:36
1712.05:385:35
1812.05:375:35
1912.05:375:35
2012.05:365:35
2112.05:365:35
2212.05:355:35
2312.05:345:35
2412.05:345:35
2512.05:335:35
2612.05:325:35
2712.05:325:35
2812.15:315:35
2912.15:305:35
3012.15:305:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.86 kWh/m².

For context, solar energy here swings from a low near 4.86 kWh/m² to a high of 7.09 kWh/m² in October across the year — September's 6.86 kWh/m² sits near the top of that range.

02468151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.6Intense
46.6Intense
56.6Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
227.0Intense
237.0Intense
247.0Intense
257.0Intense
267.0Intense
277.0Intense
287.0Intense
297.0Intense
307.0Intense
Planning a trip in September

Hazard calendar for Soe

In seasonPeak

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

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

Soe'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 September a good time to visit Soe?

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

6.2
Sightseeing
4th-best month of the year
8.1
Beach & pool
1st-best month of the year

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

What to pack for Soe in September

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

In September, Soe sees daytime highs around 30°C and nights near 16°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Soe in September

The nearest coast averages about 28°C in September — 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 December at about 30°C and coldest in August near 27°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
Jan30Tropical
Feb30Tropical
Mar30Tropical
Apr29Tropical
May28Tropical
Jun28Warm
Jul27Warm
Aug27Warm
Sep28Warm
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index in Soe in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Soe peaks around February 22 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 22UV 16Jun 22UV 9
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme

Air quality in Soe in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Soe is worst in October — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodOct 1616 µg/m³Apr 169 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb9Good
Mar10Good
Apr9Good
May10Good
Jun12Good
Jul11Good
Aug9Good
Sep11Good
Oct17Moderate
Nov10Good
Dec11Good
Location & terrain

Where is Soe?

Soe sits at 9.9°S, 124.3°E, 852 m above sea level, in Indonesia. The nearest listed city is Kefamenanu, 51 km away.

Topography around Soe

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

Within 3 km, the terrain around Soe has significant variations in elevation — a maximum elevation change of 456 m around an average of 778 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,031 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,371 m.

The land around Soe is covered by trees (55%) and grassland (30%) within 3 km, trees (67%) and grassland (30%) within 16 km, and trees (47%) and water (37%) within 80 km.

3 km
456 m
16 km
1,031 m
80 km
2,371 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Kefamenanu 51 km · Kupang 82 km · Atambua 107 km · Suai 123 km · Maliana 141 km · Atsabe 161 km · Maubara 172 km · Gleno 179 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 Soe (-9.8607°, 124.284°, elevation 852 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).