Tarutung weather in May

In May, Tarutung sees average daytime highs of 27°C and overnight lows near 18°C, with 218 mm of rain across 23.4 wet days and about 12.1 hours of daylight. It is the 2nd-warmest and 10th-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 2% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 06 min at the start of May to 12 h 06 min by month's end. Set against the rest of the year, May is Tarutung's 6th-clearest and 5th-windiest month. For the whole year in context, see Tarutung's year-round climate.

Daytime high
27°
2nd warmest
Overnight low
18°
12th coldest
Rainfall
218 mm
23.4 wet days
Daylight
12 h 06 min
6:18 AM – 6:23 PM
Cloud cover
88%
6th clearest
Wind
4 km/h
5th windiest
Solar energy
4.88 kWh/m²
Travel score
4.2
out of 10

Tarutung is capital of North Tapanuli Regency in North Sumatra Province, Indonesia.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Tarutung reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, May runs on par with April and on par with June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12718
22718
32718
42718
52718
62718
72718
82718
92718
102718
112718
122718
132718
142718
152718
162718
172718
182718
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718
312718

Tarutung weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 18°26124.811.94.1
Feb27° / 18°23521.711.94.2
Mar27° / 18°26626.2123.9
Apr27° / 18°32527.4123.6
May27° / 18°21823.412.14.2
Jun27° / 17°14218.112.14.9
Jul26° / 17°16719.612.14.9
Aug26° / 17°2412312.14.4
Sep26° / 17°25624.4124.1
Oct26° / 17°36126.7123.9
Nov26° / 18°40028.511.93.5
Dec26° / 18°3452811.93.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 7% of May, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5496
6694
7793
8793
9793
10892
11892
12991
13991
141090
151090
161189
171288
181288
191288
201288
211288
221288
231288
241189
251189
261189
271090
281090
291090
301090
311090

Chance of precipitation in May

Any precipitation

Tarutung gets around 218 mm of rain over 23.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 75% and peaks near 88% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
188
287
386
485
584
683
782
881
980
1078
1177
1275
1374
1473
1572
1671
1770
1870
1970
2069
2169
2269
2370
2470
2570
2671
2771
2871
2971
3071
3170

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 85% of days. Sticky, muggy-or-worse air turns up on roughly 85% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
10793
20793
30793
40892
50892
60991
70991
801090
901189
1001288
1101387
1201486
1311485
1411584
1511584
1611683
1711683
1811683
1911782
2011782
2111782
2211782
2311782
2411881
2501882
2601981
2701981
2802080
2902080
3002179
3102278

Wind in May

Winds average 4 km/h in May.

Across May, 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 May

DaylightNight

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

Days grow by about 0 minutes over May. Sunrise moves from 6:19 AM to 6:18 AM, and sunset from 6:23 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:196:23
212.16:196:23
312.16:196:23
412.16:196:23
512.16:196:23
612.16:186:23
712.16:186:23
812.16:186:23
912.16:186:23
1012.16:186:23
1112.16:186:23
1212.16:186:23
1312.16:186:23
1412.16:186:23
1512.16:186:23
1612.16:186:23
1712.16:186:23
1812.16:186:23
1912.16:186:23
2012.16:186:23
2112.16:186:23
2212.16:186:24
2312.16:186:24
2412.16:186:24
2512.16:186:24
2612.16:186:24
2712.16:186:24
2812.16:186:24
2912.16:186:24
3012.16:186:25
3112.16:186:25

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.88 kWh/m².

For context, solar energy here swings from a low near 3.9 kWh/m² to a high of 5.14 kWh/m² in February across the year — May's 4.88 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Tarutung

In seasonPeak

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

Tarutung 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 May a good time to visit Tarutung?

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

4.2
Sightseeing
4th-best month of the year
4.4
Beach & pool
3rd-best month of the year

May is a reasonable time to visit Tarutung for sightseeing.

What to pack for Tarutung in May

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

In May, Tarutung sees daytime highs around 27°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Tarutung in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 41 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 Tarutung in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Tarutung peaks around February 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 21UV 15Jun 18UV 11
UV index (midday)Level
Jan12Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep14Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Air quality in Tarutung in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Tarutung is worst in October — around 23 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1123 µg/m³Dec 1015 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar22Moderate
Apr19Moderate
May18Moderate
Jun18Moderate
Jul19Moderate
Aug18Moderate
Sep22Moderate
Oct23Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Tarutung?

Tarutung sits at 2.0°N, 99.0°E, 948 m above sea level, in Indonesia. The nearest listed city is Sibolga, 37 km away.

Topography around Tarutung

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

Within 3 km, the terrain around Tarutung has significant variations in elevation — a maximum elevation change of 493 m around an average of 1,012 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,310 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,257 m.

The land around Tarutung is covered by trees (52%) and cropland (30%) within 3 km, trees (78%) within 16 km, and trees (73%) within 80 km.

3 km
493 m
16 km
1,310 m
80 km
2,257 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Sibolga 37 km · Barus 63 km · Pangururan 72 km · Padangsidempuan 78 km · Bandar 87 km · Rantauprapat 97 km · Pematangsiantar 106 km · Paropo 107 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 Tarutung (2.0147°, 98.9655°, elevation 948 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).