Binjai weather in October

In October, Binjai sees average daytime highs of 30°C and overnight lows near 22°C, with 338 mm of rain across 29.6 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 3rd-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 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 Binjai's 11th-clearest and 11th-windiest month. For the whole year in context, see Binjai's year-round climate.

Daytime high
30°
9th warmest
Overnight low
22°
6th coldest
Rainfall
338 mm
29.6 wet days
Daylight
11 h 54 min
6:14 AM – 6:09 PM
Cloud cover
92%
11th clearest
Wind
4 km/h
11th windiest
Solar energy
4.54 kWh/m²
Travel score
2.5
out of 10

Binjai is city in North Sumatra Province, Indonesia.

Density
3,095/km²
people per km²
Founded
1872

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

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

A typical October day in Binjai reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, October runs on par with September and on par with November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13122
23122
33122
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303022
313022

How October really feels in Binjai

Once humidity and wind are folded in, October averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Binjai weather by month

How October compares with the rest of the year at a glance. October is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°23726.311.83.1
Feb30° / 22°1782211.93.1
Mar31° / 22°21125.4122.8
Apr31° / 22°25328.112.12.4
May32° / 22°2662812.22.3
Jun32° / 22°18924.412.22.5
Jul32° / 22°18624.912.22.6
Aug32° / 22°21326.812.12.4
Sep31° / 22°30628.6122.4
Oct30° / 22°33829.611.92.5
Nov30° / 22°35828.811.82.7
Dec29° / 22°34528.711.82.9

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 1% of October, with mostly cloudy or overcast conditions the remaining 98%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1298
2298
3298
4298
5199
6199
7199
8298
9298
10397
11397
12397
13397
14397
15397
16298
17199
18199
19199
20199
21199
22199
23199
24199
25199
26199
27199
28199
29199
30199
31199

Chance of precipitation in October

Any precipitation

Binjai gets around 338 mm of rain over 29.6 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 96% and peaks near 97% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
197
297
397
496
596
696
796
896
996
1096
1195
1295
1395
1495
1595
1695
1795
1895
1995
2095
2195
2295
2396
2496
2596
2696
2796
2896
2996
3097
3197

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10991
20991
30991
40991
50991
60991
70991
80991
90991
100991
111981
121981
131972
141972
151972
161972
171972
181972
191972
201972
211972
221972
231972
241972
251972
261972
270991
280991
290991
300991
310991

Wind in October

Winds average 4 km/h in October.

Across October, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 6:13 AM, and sunset from 6:14 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:166:14
212.06:166:14
312.06:166:13
412.06:156:13
512.06:156:12
612.06:156:12
711.96:156:12
811.96:156:11
911.96:146:11
1011.96:146:11
1111.96:146:10
1211.96:146:10
1311.96:146:10
1411.96:146:09
1511.96:146:09
1611.96:146:09
1711.96:136:08
1811.96:136:08
1911.96:136:08
2011.96:136:08
2111.96:136:07
2211.96:136:07
2311.96:136:07
2411.96:136:07
2511.96:136:07
2611.96:136:06
2711.96:136:06
2811.96:136:06
2911.96:136:06
3011.96:136:06
3111.96:136:06

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.54 kWh/m².

For context, solar energy here swings from a low near 3.95 kWh/m² to a high of 5.37 kWh/m² in March across the year — October's 4.54 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.2Bright
314.2Bright
Planning a trip in October

Hazard calendar for Binjai

In seasonPeak

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

Binjai 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 Binjai?

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

2.5
Sightseeing
7th-best month of the year
3.6
Beach & pool
11th-best month of the year

October is a weaker month for outdoor sightseeing in Binjai.

What to pack for Binjai in October

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

In October, Binjai sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 30 days see rain.

light clothesrain gearsun protection

Sea temperature near Binjai 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 53 km away) is warmest in June at about 30°C and coldest in January 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
Feb29Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Binjai in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Binjai peaks around February 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 14Jul 10UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar14Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep14Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Binjai 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 Binjai is worst in March — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2434 µg/m³Dec 1626 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb30Moderate
Mar34Moderate
Apr34Moderate
May32Moderate
Jun31Moderate
Jul31Moderate
Aug31Moderate
Sep34Moderate
Oct34Moderate
Nov28Moderate
Dec26Moderate
Location & terrain

Where is Binjai?

Binjai sits at 3.6°N, 98.5°E, 34 m above sea level, in Indonesia. The nearest listed city is Sunggal, 15 km away.

Topography around Binjai

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

Within 3 km, the terrain around Binjai has only modest variations in elevation — a maximum elevation change of 35 m around an average of 36 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 153 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,973 m.

The land around Binjai is covered by trees (57%) and artificial surfaces (38%) within 3 km, trees (70%) within 16 km, and trees (66%) and water (21%) within 80 km.

3 km
35 m
16 km
153 m
80 km
2,973 m
treesgrasslandcroplandartificial surfaceswatermangroves
October weather nearby: Sunggal 15 km · Stabat 15 km · Medan 20 km · Deli Tua 24 km · Belawan 29 km · Labuhan Deli 35 km · Percut 42 km · Berastagi 45 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 Binjai (3.6001°, 98.4854°, elevation 34 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).