Climate Insights for Parmonangan

Kabupaten Toba Samosir, North Sumatra, Indonesia

Hottest
May
26°C peak
Coldest
August
18°C low
Wettest
November
332mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Parmonangan is warm and mild. The average annual temperature is 21°C and approximately 2655mm of precipitation falls per year. Parmonangan receives a notable amount of rainfall throughout the year, including during its driest month. Parmonangan sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 25° Average: 21° Min: 18° Feb Max: 26° Average: 21° Min: 18° Mar Max: 26° Average: 22° Min: 19° Apr Max: 26° Average: 22° Min: 19° May Max: 26° Average: 22° Min: 19° Jun Max: 26° Average: 22° Min: 19° Jul Max: 26° Average: 21° Min: 18° Aug Max: 25° Average: 21° Min: 18° Sep Max: 25° Average: 21° Min: 18° Oct Max: 25° Average: 21° Min: 18° Nov Max: 25° Average: 21° Min: 19° Dec Max: 25° Average: 21° Min: 19°
Max
Average
Min

Parmonangan has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is May, when average highs reach 26°C and the mean temperature sits around 22°C. August is the coolest month, with minimum temperatures around 18°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 206mm Feb Precipitation: 170mm Mar Precipitation: 209mm Apr Precipitation: 256mm May Precipitation: 201mm Jun Precipitation: 149mm Jul Precipitation: 118mm Aug Precipitation: 208mm Sep Precipitation: 242mm Oct Precipitation: 271mm Nov Precipitation: 332mm Dec Precipitation: 292mm
Precipitation

Parmonangan is a very wet location, receiving approximately 2655mm of precipitation annually, which averages out to around 221mm per month. The wettest month is November, averaging 332mm of rainfall. December and October also tend to see above-average precipitation. The driest month is July, with just 118mm. That's 214mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Wind

0km/h 5km/h 10km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 8km/h Feb Wind Speed: 8km/h Mar Wind Speed: 7km/h Apr Wind Speed: 7km/h May Wind Speed: 8km/h Jun Wind Speed: 8km/h Jul Wind Speed: 10km/h Aug Wind Speed: 9km/h Sep Wind Speed: 9km/h Oct Wind Speed: 9km/h Nov Wind Speed: 8km/h Dec Wind Speed: 8km/h
Wind Speed

Parmonangan is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Parmonangan, which began on March 20, 2026. Parmonangan sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in May at around 26°C, while the coldest stretch bottoms out in August near 18°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 19 to 26°C. Rainfall is heavy, totalling around 666mm across the season with a monthly average of 222mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 18 to 26°C. Rainfall is heavy, totalling around 475mm across the season with a monthly average of 158mm. Winds are generally light, averaging 9km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 18 to 25°C. Rainfall is heavy, totalling around 845mm across the season with a monthly average of 282mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 18 to 26°C. Rainfall is heavy, totalling around 669mm across the season with a monthly average of 223mm. Winds are generally light, averaging 8km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Parmonangan based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
18 °C
25 °C
8 km/h
206 mm
0 cm
Feb
18 °C
26 °C
8 km/h
170 mm
0 cm
Mar Current
19 °C
26 °C
7 km/h
209 mm
0 cm
Apr
19 °C
26 °C
7 km/h
256 mm
0 cm
May
19 °C
26 °C
8 km/h
201 mm
0 cm
Jun
19 °C
26 °C
8 km/h
149 mm
0 cm
Jul
18 °C
26 °C
10 km/h
118 mm
0 cm
Aug
18 °C
25 °C
9 km/h
208 mm
0 cm
Sep
18 °C
25 °C
9 km/h
242 mm
0 cm
Oct
18 °C
25 °C
9 km/h
271 mm
0 cm
Nov
19 °C
25 °C
8 km/h
332 mm
0 cm
Dec
19 °C
25 °C
8 km/h
292 mm
0 cm
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Metric (°C, km/h)