Lhokseumawe weather in September

In September, Lhokseumawe sees average daytime highs of 29°C and overnight lows near 26°C, with 92 mm of rain across 18 wet days and about 12 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 3% of the time in September, and the air most often feels oppressive.

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 Lhokseumawe's 10th-clearest and 9th-windiest month. For the whole year in context, see Lhokseumawe's year-round climate.

Daytime high
29°
6th warmest
Overnight low
26°
7th coldest
Rainfall
92 mm
18 wet days
Daylight
12 hours
6:25 AM – 6:27 PM
Cloud cover
86%
10th clearest
Wind
8 km/h
9th windiest
Solar energy
5.4 kWh/m²
Travel score
4.3
out of 10

Lhokseumawe is administrative city in Aceh Utara Regency, Indonesia.

Founded
1986

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 29°C through the month.

A typical September day in Lhokseumawe reaches about 29°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242826
252826
262826
272826
282826
292826
302826

How September really feels in Lhokseumawe

Once humidity and wind are folded in, September averages 27 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
27
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Lhokseumawe weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 26°11317.611.75.1
Feb28° / 26°5911.211.85.8
Mar28° / 26°6613125.2
Apr29° / 27°8717.312.14.4
May29° / 27°9516.412.24.2
Jun29° / 27°6112.412.34.7
Jul29° / 27°6613.212.34.7
Aug29° / 27°7915.312.24.5
Sep29° / 26°9218124.3
Oct28° / 26°15824.111.93.9
Nov28° / 26°2482611.83.7
Dec27° / 26°25824.111.74.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11189
21189
31090
41090
51189
61189
71189
81189
91189
101189
111189
121288
131189
141189
151189
161090
171189
181189
191189
201090
211090
22991
23892
24892
25892
26793
27694
28694
29694
30694

Chance of precipitation in September

Any precipitation

Lhokseumawe gets around 92 mm of rain over 18 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 60% and peaks near 69% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
158
258
358
458
557
657
758
858
958
1057
1157
1257
1357
1457
1557
1658
1758
1858
1959
2060
2160
2261
2362
2463
2564
2665
2766
2867
2968
3069

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 77% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
17426
27426
37525
47525
57624
67624
77723
87723
97723
107723
117822
127822
137822
147822
157822
167822
177822
187723
197723
207723
217723
227723
237822
247822
257822
267822
277822
287921
297921
308020

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:28 AM to 6:22 AM, and sunset from 6:34 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:286:34
212.16:286:34
312.16:286:33
412.16:286:33
512.16:276:32
612.16:276:32
712.16:276:31
812.16:276:31
912.16:266:30
1012.16:266:30
1112.16:266:29
1212.06:266:29
1312.06:266:28
1412.06:256:28
1512.06:256:27
1612.06:256:27
1712.06:256:26
1812.06:246:26
1912.06:246:25
2012.06:246:24
2112.06:246:24
2212.06:246:23
2312.06:236:23
2412.06:236:22
2512.06:236:22
2612.06:236:21
2712.06:226:21
2812.06:226:20
2912.06:226:20
3012.06:226:20

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.4 kWh/m².

For context, solar energy here swings from a low near 4.19 kWh/m² to a high of 5.73 kWh/m² in March across the year — September's 5.4 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.1Bright
Planning a trip in September

Hazard calendar for Lhokseumawe

In seasonPeak

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

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

Lhokseumawe's rainy season runs October–December, when most of the year's rain falls.

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

Is September a good time to visit Lhokseumawe?

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

4.3
Sightseeing
8th-best month of the year
5.2
Beach & pool
9th-best month of the year

September is a reasonable time to visit Lhokseumawe for sightseeing.

What to pack for Lhokseumawe in September

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

In September, Lhokseumawe sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Lhokseumawe in September

The nearest coast averages about 30°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 22 km away) is warmest in May at about 30°C and coldest in January near 28°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
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Lhokseumawe in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lhokseumawe peaks around February 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 14Dec 11UV 10
UV index (midday)Level
Jan11Extreme
Feb14Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Lhokseumawe 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 Lhokseumawe is worst in July — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1519 µg/m³Dec 1313 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar18Moderate
Apr17Moderate
May18Moderate
Jun18Moderate
Jul19Moderate
Aug18Moderate
Sep18Moderate
Oct16Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Lhokseumawe?

Lhokseumawe sits at 5.2°N, 97.2°E, 6 m above sea level, in Indonesia. The nearest listed city is Bireun, 50 km away.

Topography around Lhokseumawe

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

Within 3 km, the terrain around Lhokseumawe has only modest variations in elevation — a maximum elevation change of 41 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 196 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,846 m.

The land around Lhokseumawe is covered by water (65%) and artificial surfaces (23%) within 3 km, water (48%) and trees (33%) within 16 km, and trees (55%) and water (39%) within 80 km.

3 km
41 m
16 km
196 m
80 km
2,846 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Bireun 50 km · Reuleuet 96 km · Langsa 120 km · Sigli 134 km · Meulaboh 162 km · Blangpidie 164 km · Pangkalan Brandan 179 km · Tanjungtiram 184 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 Lhokseumawe (5.1801°, 97.1507°, elevation 6 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).