Climate Insights for Bomai

, Chimbu Province, Papua New Guinea

Hottest
November
27°C peak
Coldest
August
18°C low
Wettest
March
527mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Bomai is warm and mild. The average annual temperature is 21°C and approximately 4837mm of precipitation falls per year. Bomai receives a notable amount of rainfall throughout the year, including during its driest month. Bomai 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: 27° Average: 21° Min: 18° Feb Max: 27° Average: 21° Min: 18° Mar Max: 27° Average: 21° Min: 18° Apr Max: 26° Average: 21° Min: 18° May Max: 26° Average: 21° Min: 19° Jun Max: 25° Average: 21° Min: 18° Jul Max: 25° Average: 20° Min: 18° Aug Max: 25° Average: 20° Min: 18° Sep Max: 25° Average: 21° Min: 18° Oct Max: 26° Average: 21° Min: 18° Nov Max: 27° Average: 21° Min: 18° Dec Max: 27° Average: 22° Min: 18°
Max
Average
Min

Bomai has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is November, when average highs reach 27°C and the mean temperature sits around 21°C. August is the coolest month, with minimum temperatures around 18°C and an average of 20°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm 550mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 455mm Feb Precipitation: 490mm Mar Precipitation: 527mm Apr Precipitation: 473mm May Precipitation: 357mm Jun Precipitation: 307mm Jul Precipitation: 279mm Aug Precipitation: 304mm Sep Precipitation: 361mm Oct Precipitation: 430mm Nov Precipitation: 368mm Dec Precipitation: 486mm
Precipitation

Bomai is a very wet location, receiving approximately 4837mm of precipitation annually, which averages out to around 403mm per month. The wettest month is March, averaging 527mm of rainfall. February and December also tend to see above-average precipitation. The driest month is July, with just 279mm. That's 248mm less than March, 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 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 6km/h Feb Wind Speed: 6km/h Mar Wind Speed: 6km/h Apr Wind Speed: 6km/h May Wind Speed: 6km/h Jun Wind Speed: 6km/h Jul Wind Speed: 6km/h Aug Wind Speed: 7km/h Sep Wind Speed: 7km/h Oct Wind Speed: 7km/h Nov Wind Speed: 6km/h Dec Wind Speed: 6km/h
Wind Speed

Bomai is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

Seasons

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

90 days until Winter

It is currently autumn in Bomai, which began on March 20, 2026. Bomai sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in November at around 27°C, while the coldest stretch bottoms out in August near 18°C. Winter is next, beginning on June 21, 2026 — 90 days from now.

Spring

Temperatures range from 18 to 27°C. Rainfall is heavy, totalling around 1160mm across the season with a monthly average of 387mm. 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 27°C. Rainfall is heavy, totalling around 1431mm across the season with a monthly average of 477mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 18 to 27°C. Rainfall is heavy, totalling around 1357mm across the season with a monthly average of 452mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 18 to 25°C. Rainfall is heavy, totalling around 891mm across the season with a monthly average of 297mm. Winds are generally light, averaging 6km/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 Bomai 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
27 °C
6 km/h
455 mm
0 cm
Feb
18 °C
27 °C
6 km/h
490 mm
0 cm
Mar Current
18 °C
27 °C
6 km/h
527 mm
0 cm
Apr
18 °C
26 °C
6 km/h
473 mm
0 cm
May
19 °C
26 °C
6 km/h
357 mm
0 cm
Jun
18 °C
25 °C
6 km/h
307 mm
0 cm
Jul
18 °C
25 °C
6 km/h
279 mm
0 cm
Aug
18 °C
25 °C
7 km/h
304 mm
0 cm
Sep
18 °C
25 °C
7 km/h
361 mm
0 cm
Oct
18 °C
26 °C
7 km/h
430 mm
0 cm
Nov
18 °C
27 °C
6 km/h
368 mm
0 cm
Dec
18 °C
27 °C
6 km/h
486 mm
0 cm
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Metric (°C, km/h)