Climate Insights for Okao Airport

, Western Province, Papua New Guinea

Hottest
January
30°C peak
Coldest
August
21°C low
Wettest
May
1023mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Okao Airport is hot. The average annual temperature is 25°C and approximately 8160mm of precipitation falls per year. Okao Airport receives a notable amount of rainfall throughout the year, including during its driest month. Okao Airport 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: 30° Average: 26° Min: 22° Feb Max: 30° Average: 26° Min: 22° Mar Max: 30° Average: 26° Min: 22° Apr Max: 29° Average: 26° Min: 23° May Max: 29° Average: 25° Min: 22° Jun Max: 28° Average: 25° Min: 22° Jul Max: 27° Average: 24° Min: 22° 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: 30° Average: 26° Min: 23°
Max
Average
Min

Okao Airport has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is January, when average highs reach 30°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 800mm 850mm 900mm 950mm 1000mm 1050mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 461mm Feb Precipitation: 281mm Mar Precipitation: 508mm Apr Precipitation: 679mm May Precipitation: 1023mm Jun Precipitation: 867mm Jul Precipitation: 933mm Aug Precipitation: 646mm Sep Precipitation: 869mm Oct Precipitation: 852mm Nov Precipitation: 649mm Dec Precipitation: 392mm
Precipitation

Okao Airport is a very wet location, receiving approximately 8160mm of precipitation annually, which averages out to around 680mm per month. The wettest month is May, averaging 1023mm of rainfall. July and September also tend to see above-average precipitation. The driest month is February, with just 281mm. That's 742mm less than May, 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: 7km/h Feb Wind Speed: 7km/h Mar Wind Speed: 7km/h Apr Wind Speed: 7km/h May Wind Speed: 7km/h Jun Wind Speed: 8km/h Jul Wind Speed: 8km/h Aug Wind Speed: 8km/h Sep Wind Speed: 8km/h Oct Wind Speed: 7km/h Nov Wind Speed: 6km/h Dec Wind Speed: 7km/h
Wind Speed

Okao Airport 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 August, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, 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 2km/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 Okao Airport, which began on March 20, 2026. Okao 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 January at around 30°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 2369mm across the season with a monthly average of 790mm. 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 30°C. Rainfall is heavy, totalling around 1134mm across the season with a monthly average of 378mm. Winds are generally light, averaging 7km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 22 to 30°C. Rainfall is heavy, totalling around 2211mm across the season with a monthly average of 737mm. 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 2446mm across the season with a monthly average of 815mm. 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 Okao 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
22 °C
30 °C
7 km/h
461 mm
0 cm
Feb
22 °C
30 °C
7 km/h
281 mm
0 cm
Mar Current
22 °C
30 °C
7 km/h
508 mm
0 cm
Apr
23 °C
29 °C
7 km/h
679 mm
0 cm
May
22 °C
29 °C
7 km/h
1023 mm
0 cm
Jun
22 °C
28 °C
8 km/h
867 mm
0 cm
Jul
22 °C
27 °C
8 km/h
933 mm
0 cm
Aug
21 °C
28 °C
8 km/h
646 mm
0 cm
Sep
22 °C
28 °C
8 km/h
869 mm
0 cm
Oct
22 °C
29 °C
7 km/h
852 mm
0 cm
Nov
22 °C
30 °C
6 km/h
649 mm
0 cm
Dec
23 °C
30 °C
7 km/h
392 mm
0 cm
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Metric (°C, km/h)