Barus weather in October

In October, Barus sees average daytime highs of 27°C and overnight lows near 23°C, with 419 mm of rain across 26 wet days and about 12 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 0% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of October to 11 h 54 min by month's end. Set against the rest of the year, October is Barus's 11th-clearest and 1st-windiest month. For the whole year in context, see Barus's year-round climate.

Daytime high
27°
11th warmest
Overnight low
23°
7th coldest
Rainfall
419 mm
26 wet days
Daylight
12 hours
6:13 AM – 6:10 PM
Cloud cover
93%
11th clearest
Wind
5 km/h
1st windiest
Solar energy
4.7 kWh/m²
Travel score
3.8
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical October day in Barus reaches about 27°C in the afternoon and slips back to 23°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, October runs on par with September and on par with November.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12723
22723
32723
42723
52723
62723
72723
82723
92723
102723
112723
122723
132723
142723
152723
162723
172723
182723
192723
202723
212723
222723
232723
242723
252723
262723
272723
282723
292723
302723
312723

Barus weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°34227.211.93.7
Feb28° / 23°31424.811.93.7
Mar28° / 23°36128.6123.4
Apr28° / 23°38227.6123.5
May28° / 23°26122.212.14.0
Jun28° / 23°16417.612.14.6
Jul28° / 23°19619.712.14.7
Aug27° / 23°28522.912.14.3
Sep27° / 23°30223.9124.0
Oct27° / 23°41926123.8
Nov27° / 23°52128.311.93.4
Dec27° / 23°43928.411.93.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 3% of October, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1397
2397
3397
4397
5397
6397
7397
8397
9496
10496
11496
12397
13397
14397
15397
16397
17397
18298
19298
20298
21298
22298
23298
24298
25298
26298
27298
28298
29298
30298
31298

Chance of precipitation in October

Any precipitation

Barus gets around 419 mm of rain over 26 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 84% and peaks near 91% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
181
281
381
480
580
680
780
880
979
1079
1180
1280
1381
1481
1582
1683
1784
1885
1986
2086
2187
2288
2388
2489
2589
2690
2790
2891
2991
3091
3191

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
11684
21783
31783
41882
51882
61981
71981
81981
91981
101981
111981
122080
131981
141981
151981
161981
171981
181882
191882
201882
211783
221783
231684
241585
251585
261486
271387
281387
291288
301288
311288

Wind in October

Winds average 5 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
176calm
186calm
196calm
206calm
216calm
226calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 hours at the start of October to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over October. Sunrise moves from 6:16 AM to 6:12 AM, and sunset from 6:15 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:166:15
212.06:166:14
312.06:156:14
412.06:156:14
512.06:156:13
612.06:156:13
712.06:146:13
812.06:146:12
912.06:146:12
1012.06:146:12
1112.06:146:11
1212.06:136:11
1312.06:136:11
1412.06:136:11
1512.06:136:10
1612.06:136:10
1712.06:136:10
1812.06:136:10
1911.96:126:09
2011.96:126:09
2111.96:126:09
2211.96:126:09
2311.96:126:09
2411.96:126:09
2511.96:126:08
2611.96:126:08
2711.96:126:08
2811.96:126:08
2911.96:126:08
3011.96:126:08
3111.96:126:08

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.7 kWh/m².

For context, solar energy here swings from a low near 4.18 kWh/m² to a high of 5.53 kWh/m² in February across the year — October's 4.7 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in October

Hazard calendar for Barus

In seasonPeak

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

Barus 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 October a good time to visit Barus?

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

3.8
Sightseeing
6th-best month of the year
3.9
Beach & pool
7th-best month of the year

October is a weaker month for outdoor sightseeing in Barus.

What to pack for Barus in October

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

In October, Barus sees daytime highs around 27°C and nights near 23°C. Pack rain gear. Worth having: light clothes and sun protection. About 26 days see rain.

rain gearlight clothessun protection

Sea temperature near Barus in October

The nearest coast averages about 29°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in March at about 30°C and coldest in November near 29°C.

The water stays above 20°C all year — warm enough for a swim any month.

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb30Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Barus in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Barus peaks around February 20 at about 14 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 14Jun 20UV 11
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar14Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Air quality in Barus in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Barus is worst in February — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodFeb 2017 µg/m³Nov 2312 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar16Moderate
Apr14Moderate
May14Moderate
Jun15Moderate
Jul15Moderate
Aug15Moderate
Sep16Moderate
Oct17Moderate
Nov12Good
Dec12Good
Location & terrain

Where is Barus?

Barus sits at 2.0°N, 98.4°E, 5 m above sea level, in Indonesia. The nearest listed city is Sibolga, 52 km away.

Topography around Barus

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

Within 3 km, the terrain around Barus has only modest variations in elevation — a maximum elevation change of 37 m around an average of 5 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,089 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,119 m.

The land around Barus is covered by water (48%), trees (25%) and cropland (20%) within 3 km, trees (48%) and water (48%) within 16 km, and trees (46%) and water (46%) within 80 km.

3 km
37 m
16 km
1,089 m
80 km
2,119 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Sibolga 52 km · Tarutung 63 km · Pangururan 74 km · Singkil 74 km · Sidikalang 83 km · Subulussalam 92 km · Paropo 96 km · Tongging 100 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 Barus (2.0106°, 98.3982°, elevation 5 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).