Climate and average weather in Berastagi

In Berastagi, the weather is humid, warm, wet, and mostly cloudy and remarkably steady, with daytime highs holding near warm levels all year. The wettest stretch peaks around November.

Best: early January to late December

Over the course of the year, the temperature in Berastagi typically varies from 18°C to 28°C, and is rarely below 17°C or above 30°C. May is the hottest month of the year, while December is the coldest.

Based on the travel score, the best time of year to visit Berastagi for warm-weather activities is from early January to late December.

Hottest
May
28°
Coldest
Dec
19°
Wettest
Nov
346 mm
Driest
Jul
182 mm
Rain / yr
3055 mm
332 wet days
Daylight
11.8–12.2 h
shortest–longest
Elevation
1,402 m
3.2°N
Clearest
Jun
83% cloud

Berastagi weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Berastagi, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Berastagi stay fairly even through the year, without a distinct hot or cool season. The warmest month is May, with an average high of 28°C and low of 19°C; the coolest is December, with an average low of 19°C and high of 26°C.

Days typically run about 8°C warmer than nights year-round.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2618
Feb2618
Mar2718
Apr2719
May2819
Jun2819
Jul2718
Aug2718
Sep2718
Oct2618
Nov2619
Dec2619

Average hourly temperature in Berastagi

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on May afternoons, near 28°C, and coldest before dawn in December, near 19°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Berastagi weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 18°23828.411.83.7
Feb26° / 18°19625.111.93.8
Mar27° / 18°22628.5123.6
Apr27° / 19°26129.212.13.3
May28° / 19°23827.612.13.6
Jun28° / 19°18224.512.24.0
Jul27° / 18°18224.512.24.1
Aug27° / 18°22526.512.13.8
Sep27° / 18°28828.4123.5
Oct26° / 18°33429.611.93.4
Nov26° / 19°34629.611.93.3
Dec26° / 19°34030.111.83.4

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Berastagi gets about 3055 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 4.9 months, from around Aug 28 to Jan 22, peaking in November at about 99% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 24.

November is the wettest month by volume, with 346 mm over about 30 wet days; July is the driest, with 182 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwettermostly drysome rainoften wetvery wetNov 12 · 99%Jul 24 · 78%
Rain on a day (%)Rain days
Jan9228
Feb8925
Mar9229
Apr9729
May8928
Jun8225
Jul7925
Aug8627
Sep9428
Oct9630
Nov9930
Dec9730

Monthly rainfall

Over a full year, Berastagi collects about 3055 mm of rain across 332 wet days — roughly 255 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 346 mm, while July is the driest at just 182 mm. The three wettest months alone bring about 33% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec238196226261238182182225288334346340
Rainfall (mm)Rain days
Jan23828
Feb19625
Mar22629
Apr26129
May23828
Jun18225
Jul18225
Aug22527
Sep28828
Oct33430
Nov34630
Dec34030

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Berastagi, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around May 12 and lasts for 3.2 months, ending around August 15. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 14% of the time on average.

The cloudier part of the year begins around August 16 and lasts for 5.2 months, ending around January 19. The cloudiest month is October, when it is overcast or mostly cloudy 99% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJun 23 · 16%Sep 29 · 1%partly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan694
Feb1090
Mar1090
Apr397
May793
Jun1486
Jul1288
Aug793
Sep298
Oct199
Nov199
Dec298

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. Close to the equator, Berastagi barely changes through the year: days stay near 12 h 12 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.86:406:30
Feb11.96:446:37
Mar12.06:366:35
Apr12.16:246:28
May12.16:186:27
Jun12.26:216:32
Jul12.26:276:37
Aug12.16:276:33
Sep12.06:206:21
Oct11.96:136:09
Nov11.96:166:07
Dec11.86:286:17

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Berastagi gets about 0 sunny days a month gloomy — and it barely shifts through the year, holding between 0 and 2 days every month. Clear skies here are a flat line, not a season.

05JanFebMarAprMayJunJulAugSepOctNovDecgloomyJun 192 daysApr 110 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar1Gloomy
Apr0Gloomy
May1Gloomy
Jun1Gloomy
Jul1Gloomy
Aug0Gloomy
Sep0Gloomy
Oct0Gloomy
Nov0Gloomy
Dec0Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

Berastagi is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is January, when it feels muggy, oppressive or miserable about 87% of the time. Even in July, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmuggyhumid
Humid (%)Muggy (%)Oppressive (%)
Jan13870
Feb14860
Mar5940
Apr1972
May5923
Jun11890
Jul22770
Aug18820
Sep11890
Oct8920
Nov4960
Dec4960

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Berastagi is steady company: average speeds sit near 4 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmJul 31 · 5 km/hNov 7 · 4 km/h
Wind speed (km/h)Feels
Jan4calm
Feb4calm
Mar4calm
Apr4calm
May4calm
Jun4calm
Jul4calm
Aug4calm
Sep4calm
Oct4calm
Nov4calm
Dec4calm

Best time to visit Berastagi

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Berastagi throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late December, Berastagi is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. In Berastagi it holds close to 4.1 all year, so any month is about as good as another for general outdoor tourist activities.

0246810JanFebMarAprMayJunJulAugSepOctNovDectravel scoretemperaturecloudsprecipitation

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan3.7fair
Feb3.8fair
Mar3.6fair
Apr3.3poor
May3.6fair
Jun4.0fair
Jul4.1fair
Aug3.8fair
Sep3.5poor
Oct3.4poor
Nov3.3poor
Dec3.4poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Berastagi for hot-weather activities run from early January to early April and again from late April to late September, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJul 25 · 4.3

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Berastagi, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Berastagi packs about the same all year — highs hold near 28°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In May, Berastagi sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

UV index (midday) in Berastagi by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Berastagi peaks around February 22 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 15Jun 20UV 11
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct13Extreme
Nov11Extreme
Dec12Extreme

Average hourly UV index in Berastagi

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in February the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan86
Feb86.5
Mar86.5
Apr86
May86
Jun7.55.5
Jul85.5
Aug86
Sep86.5
Oct86
Nov7.55.5
Dec7.55.5

Air quality in Berastagi by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Berastagi 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
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Berastagi is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Berastagi banks about 4,565 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around May.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan370
Feb341
Mar390
Apr389
May410
Jun391
Jul394
Aug391
Sep372
Oct380
Nov365
Dec371

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Berastagi receives about 4.7 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 3.8 and 5.2 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightJul 315.2 kWhDec 63.8 kWh
Solar energy (kWh/m²)Level
Jan4.5Bright
Feb5.0Bright
Mar5.2Bright
Apr4.9Bright
May4.9Bright
Jun5.1Bright
Jul5.1Bright
Aug5.0Bright
Sep4.9Bright
Oct4.4Bright
Nov3.9Moderate
Dec3.8Moderate

Where is Berastagi?

Berastagi sits at 3.2°N, 98.5°E, 1,402 m above sea level, in Indonesia. The nearest listed city is Kabanjahe, 11 km away.

Topography around Berastagi

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

Within 3 km, the terrain around Berastagi has significant variations in elevation — a maximum elevation change of 496 m around an average of 1,430 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,068 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,477 m.

The land around Berastagi is covered by trees (44%) and cropland (23%) within 3 km, trees (72%) within 16 km, and trees (78%) within 80 km.

3 km
496 m
16 km
2,068 m
80 km
2,477 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
Nearby: Kabanjahe 11 km · Tongging 33 km · Paropo 37 km · Deli Tua 40 km · Sunggal 44 km · Binjai 45 km · Medan 47 km · Sidikalang 54 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 Berastagi (3.1947°, 98.5089°, elevation 1,402 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. 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).