Climate Insights for Gusap Airport

, Morobe Province, Papua New Guinea

Hottest
December
26°C peak
Coldest
August
16°C low
Wettest
March
299mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Gusap Airport is warm and mild. The average annual temperature is 20°C and approximately 2544mm of precipitation falls per year. Gusap Airport receives a notable amount of rainfall throughout the year, including during its driest month. Gusap 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: 26° Average: 21° Min: 18° Feb Max: 26° Average: 21° Min: 18° Mar Max: 26° Average: 21° Min: 18° Apr Max: 26° Average: 21° Min: 17° May Max: 25° Average: 20° Min: 17° Jun Max: 24° Average: 20° Min: 16° Jul Max: 24° Average: 19° Min: 16° Aug Max: 24° Average: 19° Min: 16° Sep Max: 25° Average: 20° Min: 16° Oct Max: 26° Average: 20° Min: 17° Nov Max: 26° Average: 21° Min: 17° Dec Max: 26° Average: 21° Min: 17°
Max
Average
Min

Gusap Airport has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is December, when average highs reach 26°C and the mean temperature sits around 21°C. August is the coolest month, with minimum temperatures around 16°C and an average of 19°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 284mm Feb Precipitation: 289mm Mar Precipitation: 299mm Apr Precipitation: 264mm May Precipitation: 181mm Jun Precipitation: 145mm Jul Precipitation: 151mm Aug Precipitation: 132mm Sep Precipitation: 164mm Oct Precipitation: 169mm Nov Precipitation: 205mm Dec Precipitation: 259mm
Precipitation

Gusap Airport is a very wet location, receiving approximately 2544mm of precipitation annually, which averages out to around 212mm per month. The wettest month is March, averaging 299mm of rainfall. February and January also tend to see above-average precipitation. The driest month is August, with just 132mm. That's 167mm 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: 5km/h May Wind Speed: 6km/h Jun Wind Speed: 7km/h Jul Wind Speed: 8km/h Aug Wind Speed: 7km/h Sep Wind Speed: 7km/h Oct Wind Speed: 6km/h Nov Wind Speed: 6km/h Dec Wind Speed: 6km/h
Wind Speed

Gusap Airport 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 July, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/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 Gusap Airport, which began on March 20, 2026. Gusap 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 December at around 26°C, while the coldest stretch bottoms out in August near 16°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 16 to 26°C. Rainfall is heavy, totalling around 538mm across the season with a monthly average of 179mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 17 to 26°C. Rainfall is heavy, totalling around 832mm across the season with a monthly average of 277mm. Winds are generally light, averaging 6km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 17 to 26°C. Rainfall is heavy, totalling around 745mm across the season with a monthly average of 248mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 16 to 24°C. Rainfall is heavy, totalling around 429mm across the season with a monthly average of 143mm. 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 Gusap 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
18 °C
26 °C
6 km/h
284 mm
0 cm
Feb
18 °C
26 °C
6 km/h
289 mm
0 cm
Mar Current
18 °C
26 °C
6 km/h
299 mm
0 cm
Apr
17 °C
26 °C
5 km/h
264 mm
0 cm
May
17 °C
25 °C
6 km/h
181 mm
0 cm
Jun
16 °C
24 °C
7 km/h
145 mm
0 cm
Jul
16 °C
24 °C
8 km/h
151 mm
0 cm
Aug
16 °C
24 °C
7 km/h
132 mm
0 cm
Sep
16 °C
25 °C
7 km/h
164 mm
0 cm
Oct
17 °C
26 °C
6 km/h
169 mm
0 cm
Nov
17 °C
26 °C
6 km/h
205 mm
0 cm
Dec
17 °C
26 °C
6 km/h
259 mm
0 cm
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Metric (°C, km/h)