Sidikalang weather in September

In September, Sidikalang sees average daytime highs of 26°C and overnight lows near 18°C, with 308 mm of rain across 22.7 wet days and about 12 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Sidikalang's 9th-clearest and 5th-windiest month. For the whole year in context, see Sidikalang's year-round climate.

Daytime high
26°
9th warmest
Overnight low
18°
5th coldest
Rainfall
308 mm
22.7 wet days
Daylight
12 hours
6:21 AM – 6:22 PM
Cloud cover
92%
9th clearest
Wind
3 km/h
5th windiest
Solar energy
4.71 kWh/m²
Travel score
4.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Sidikalang reaches about 26°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12618
22618
32618
42618
52618
62618
72618
82618
92618
102618
112618
122618
132618
142618
152618
162618
172618
182618
192618
202618
212618
222618
232618
242618
252618
262618
272618
282618
292618
302618

Sidikalang weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°38327.811.93.7
Feb27° / 18°33924.711.93.7
Mar27° / 18°37928.6123.5
Apr27° / 19°39427.612.13.5
May28° / 19°26621.612.14.4
Jun27° / 18°15517.112.25.0
Jul27° / 18°16417.412.15.1
Aug27° / 18°25321.412.14.5
Sep26° / 18°30822.7124.2
Oct26° / 18°43826.311.93.9
Nov26° / 18°54528.411.93.5
Dec26° / 18°44328.211.83.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 1% of September, with mostly cloudy or overcast conditions the remaining 98%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1496
2496
3397
4397
5397
6397
7397
8397
9397
10397
11397
12298
13298
14298
15298
16298
17298
18298
19298
20199
21199
22199
23199
24199
25199
26199
27199
28199
29199
30199

Chance of precipitation in September

Any precipitation

Sidikalang gets around 308 mm of rain over 22.7 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 76% and peaks near 80% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
174
274
374
474
574
674
774
874
974
1073
1173
1273
1373
1473
1574
1674
1774
1875
1975
2076
2176
2277
2377
2478
2579
2679
2780
2880
2980
3080

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)
11882
21882
31882
41882
51882
61882
71882
81882
91882
101882
111882
121882
131882
141882
151783
161783
171783
181684
191684
201684
211585
221585
231585
241585
251486
261486
271486
281486
291585
301585

Wind in September

Winds average 3 km/h in September.

Across September, daily wind ranges from about 3 km/h on the calmest days to 3 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm

Sunrise & sunset in September

DaylightNight

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

Days shrink by about 6 minutes over September. Sunrise moves from 6:25 AM to 6:17 AM, and sunset from 6:28 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:256:28
212.16:256:28
312.06:246:27
412.06:246:27
512.06:246:26
612.06:246:26
712.06:236:26
812.06:236:25
912.06:236:25
1012.06:226:24
1112.06:226:24
1212.06:226:23
1312.06:226:23
1412.06:216:22
1512.06:216:22
1612.06:216:22
1712.06:206:21
1812.06:206:21
1912.06:206:20
2012.06:196:20
2112.06:196:19
2212.06:196:19
2312.06:196:18
2412.06:186:18
2512.06:186:18
2612.06:186:17
2712.06:176:17
2812.06:176:16
2912.06:176:16
3012.06:176:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.71 kWh/m².

For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 5.07 kWh/m² in February across the year — September's 4.71 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for Sidikalang

In seasonPeak

In September, Sidikalang sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Sidikalang sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

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

Is September a good time to visit Sidikalang?

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

4.2
Sightseeing
5th-best month of the year
4.2
Beach & pool
5th-best month of the year

September is a reasonable time to visit Sidikalang for sightseeing.

What to pack for Sidikalang in September

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

In September, Sidikalang sees daytime highs around 26°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 23 days see rain.

rain gearlight clothessun protection

UV index in Sidikalang 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 Sidikalang peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 10UV 15Jun 20UV 11
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov11Extreme
Dec12Extreme

Air quality in Sidikalang 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 Sidikalang is worst in March — around 25 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1425 µg/m³Dec 1218 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb24Moderate
Mar25Moderate
Apr23Moderate
May21Moderate
Jun21Moderate
Jul20Moderate
Aug20Moderate
Sep24Moderate
Oct23Moderate
Nov19Moderate
Dec18Moderate
Location & terrain

Where is Sidikalang?

Sidikalang sits at 2.7°N, 98.3°E, 1,066 m above sea level, in Indonesia. The nearest listed city is Paropo, 27 km away.

Topography around Sidikalang

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

Within 3 km, the terrain around Sidikalang has only modest variations in elevation — a maximum elevation change of 195 m around an average of 1,070 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,219 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,429 m.

The land around Sidikalang is covered by trees (69%) within 3 km, trees (80%) within 16 km, and trees (80%) within 80 km.

3 km
195 m
16 km
1,219 m
80 km
2,429 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Paropo 27 km · Tongging 29 km · Kabanjahe 44 km · Pangururan 45 km · Subulussalam 49 km · Berastagi 54 km · Singkil 78 km · Barus 83 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 Sidikalang (2.749°, 98.3127°, elevation 1,066 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). 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).