Climate Insights for Iboki

, Gulf Province, Papua New Guinea

Hottest
January
31°C peak
Coldest
August
21°C low
Wettest
September
726mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Iboki is hot. The average annual temperature is 25°C and approximately 6895mm of precipitation falls per year. Iboki receives a notable amount of rainfall throughout the year, including during its driest month. Iboki sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 31° Average: 26° Min: 23° Feb Max: 31° Average: 26° Min: 22° Mar Max: 30° Average: 26° Min: 22° Apr Max: 30° Average: 25° Min: 22° May Max: 29° Average: 25° Min: 22° Jun Max: 28° Average: 24° Min: 21° Jul Max: 27° Average: 24° Min: 21° Aug Max: 28° Average: 24° Min: 21° Sep Max: 28° Average: 24° Min: 22° Oct Max: 29° Average: 25° Min: 22° Nov Max: 30° Average: 26° Min: 22° Dec Max: 31° Average: 26° Min: 23°
Max
Average
Min

Iboki has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is January, when average highs reach 31°C and the mean temperature sits around 26°C. August is the coolest month, with minimum temperatures around 21°C and an average of 24°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 400mm 450mm 500mm 550mm 600mm 650mm 700mm 750mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 502mm Feb Precipitation: 348mm Mar Precipitation: 555mm Apr Precipitation: 617mm May Precipitation: 651mm Jun Precipitation: 644mm Jul Precipitation: 668mm Aug Precipitation: 672mm Sep Precipitation: 726mm Oct Precipitation: 655mm Nov Precipitation: 497mm Dec Precipitation: 361mm
Precipitation

Iboki is a very wet location, receiving approximately 6895mm of precipitation annually, which averages out to around 575mm per month. The wettest month is September, averaging 726mm of rainfall. August and July also tend to see above-average precipitation. The driest month is February, with just 348mm. That's 377mm less than September, 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: 8km/h Feb Wind Speed: 8km/h Mar Wind Speed: 7km/h Apr Wind Speed: 7km/h May Wind Speed: 7km/h Jun Wind Speed: 7km/h Jul Wind Speed: 7km/h Aug Wind Speed: 7km/h Sep Wind Speed: 8km/h Oct Wind Speed: 7km/h Nov Wind Speed: 7km/h Dec Wind Speed: 7km/h
Wind Speed

Iboki is relatively calm, with an average annual wind speed of 7km/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 8km/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. 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

89 days until Winter

It is currently autumn in Iboki, which began on March 20, 2026. Iboki sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in January at around 31°C, while the coldest stretch bottoms out in August near 21°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 22 to 30°C. Rainfall is heavy, totalling around 1878mm across the season with a monthly average of 626mm. Winds are generally light, averaging 7km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 22 to 31°C. Rainfall is heavy, totalling around 1211mm across the season with a monthly average of 404mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 22 to 30°C. Rainfall is heavy, totalling around 1823mm across the season with a monthly average of 608mm. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 21 to 28°C. Rainfall is heavy, totalling around 1983mm across the season with a monthly average of 661mm. Winds are generally light, averaging 7km/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 Iboki 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
23 °C
31 °C
8 km/h
502 mm
0 cm
Feb
22 °C
31 °C
8 km/h
348 mm
0 cm
Mar Current
22 °C
30 °C
7 km/h
555 mm
0 cm
Apr
22 °C
30 °C
7 km/h
617 mm
0 cm
May
22 °C
29 °C
7 km/h
651 mm
0 cm
Jun
21 °C
28 °C
7 km/h
644 mm
0 cm
Jul
21 °C
27 °C
7 km/h
668 mm
0 cm
Aug
21 °C
28 °C
7 km/h
672 mm
0 cm
Sep
22 °C
28 °C
8 km/h
726 mm
0 cm
Oct
22 °C
29 °C
7 km/h
655 mm
0 cm
Nov
22 °C
30 °C
7 km/h
497 mm
0 cm
Dec
23 °C
31 °C
7 km/h
361 mm
0 cm
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Metric (°C, km/h)