Climate Insights for Bunyu Airport

Kabupaten Bulungan, North Kalimantan, Indonesia

Hottest
May
29°C peak
Coldest
January
26°C low
Wettest
December
340mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Bunyu Airport is hot. The average annual temperature is 27°C and approximately 3152mm of precipitation falls per year. Bunyu Airport receives a notable amount of rainfall throughout the year, including during its driest month. Bunyu Airport sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

0° 5° 10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 28° Average: 27° Min: 26° Feb Max: 28° Average: 27° Min: 26° Mar Max: 28° Average: 27° Min: 26° Apr Max: 29° Average: 27° Min: 26° May Max: 29° Average: 28° Min: 26° Jun Max: 29° Average: 27° Min: 26° Jul Max: 28° Average: 27° Min: 26° Aug Max: 28° Average: 27° Min: 26° Sep Max: 29° Average: 27° Min: 26° Oct Max: 29° Average: 27° Min: 26° Nov Max: 28° Average: 27° Min: 26° Dec Max: 28° Average: 27° Min: 26°
Max
Average
Min

Bunyu Airport has relatively stable temperatures year-round, staying within a 3°C range. The warmest month is May, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 26°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 2°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: 298mm Feb Precipitation: 210mm Mar Precipitation: 230mm Apr Precipitation: 215mm May Precipitation: 263mm Jun Precipitation: 245mm Jul Precipitation: 246mm Aug Precipitation: 261mm Sep Precipitation: 254mm Oct Precipitation: 287mm Nov Precipitation: 303mm Dec Precipitation: 340mm
Precipitation

Bunyu Airport is a very wet location, receiving approximately 3152mm of precipitation annually, which averages out to around 263mm per month. The wettest month is December, averaging 340mm of rainfall. November and January also tend to see above-average precipitation. The driest month is February, with just 210mm. That's 130mm less than December, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 11km/h Feb Wind Speed: 13km/h Mar Wind Speed: 11km/h Apr Wind Speed: 9km/h May Wind Speed: 9km/h Jun Wind Speed: 9km/h Jul Wind Speed: 10km/h Aug Wind Speed: 10km/h Sep Wind Speed: 10km/h Oct Wind Speed: 9km/h Nov Wind Speed: 9km/h Dec Wind Speed: 9km/h
Wind Speed

Bunyu Airport is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.

Seasons

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

87 days until Winter

It is currently autumn in Bunyu Airport, which began on September 23, 2026. Bunyu Airport 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 29°C, while the coldest stretch bottoms out in January near 26°C. Winter is next, beginning on December 21, 2026 (87 days from now).

Spring

Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 708mm across the season with a monthly average of 236mm. Winds are generally light, averaging 10km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 752mm across the season with a monthly average of 251mm. Winds are generally light, averaging 10km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.

Autumn

Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 844mm across the season with a monthly average of 281mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 848mm across the season with a monthly average of 283mm. Winds are generally light, averaging 11km/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 Bunyu Airport 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
26 °C
28 °C
11 km/h
298 mm
0 cm
Feb
26 °C
28 °C
13 km/h
210 mm
0 cm
Mar
26 °C
28 °C
11 km/h
230 mm
0 cm
Apr
26 °C
29 °C
9 km/h
215 mm
0 cm
May
26 °C
29 °C
9 km/h
263 mm
0 cm
Jun
26 °C
29 °C
9 km/h
245 mm
0 cm
Jul
26 °C
28 °C
10 km/h
246 mm
0 cm
Aug
26 °C
28 °C
10 km/h
261 mm
0 cm
Sep Current
26 °C
29 °C
10 km/h
254 mm
0 cm
Oct
26 °C
29 °C
9 km/h
287 mm
0 cm
Nov
26 °C
28 °C
9 km/h
303 mm
0 cm
Dec
26 °C
28 °C
9 km/h
340 mm
0 cm
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Metric (°C, km/h)