Port Moresby climate

Port Moresby Weather in August

NASA POWER reanalysis for the half-degree grid cell around Port Moresby, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 27°C on August 1 to 28°C on August 31, and lows from 24°C to 25°C. Normal precipitation for the month is 29 mm over about 5 wet days.

August day by day

The normal high and low for each date, and the record, in °C.

Normal daily high and low temperature at Port Moresby, in °C, with the record for each date.101520253035151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
27°C
Average low
24°C
Precipitation
29 mm
Record high
34°CAug 25, 1998
Record low
15°CAug 24, 1990
Daylight
11 h 42 min to 11 h 55 min
Cloud cover
69%
Humidity
81%
Dew point
22°C
Wind
28.8 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowRecord highRecord lowChance wet
Aug 127°C24°C32°C 199516°C 197215%
Aug 227°C24°C33°C 197318°C 199315%
Aug 327°C24°C32°C 199818°C 199316%
Aug 427°C24°C33°C 199817°C 197615%
Aug 527°C24°C33°C 199519°C 199315%
Aug 627°C24°C32°C 197318°C 197214%
Aug 727°C24°C32°C 198116°C 197215%
Aug 827°C24°C31°C 199816°C 197216%
Aug 927°C24°C32°C 199817°C 197216%
Aug 1027°C24°C32°C 197817°C 198116%
Aug 1127°C24°C32°C 197817°C 197416%
Aug 1227°C24°C32°C 199817°C 197616%
Aug 1327°C24°C33°C 198118°C 198115%
Aug 1427°C24°C33°C 199819°C 197414%
Aug 1527°C24°C33°C 198819°C 197214%
Aug 1627°C24°C33°C 199219°C 197614%
Aug 1727°C24°C32°C 197318°C 197213%
Aug 1827°C24°C33°C 198117°C 197214%
Aug 1927°C24°C33°C 198117°C 197215%
Aug 2027°C24°C33°C 198119°C 197216%
Aug 2127°C24°C32°C 198519°C 197916%
Aug 2227°C24°C32°C 198318°C 197216%
Aug 2327°C25°C33°C 198818°C 197917%
Aug 2427°C25°C32°C 198815°C 199018%
Aug 2527°C25°C34°C 199816°C 199019%
Aug 2628°C25°C33°C 198518°C 199019%
Aug 2728°C25°C33°C 198820°C 198219%
Aug 2828°C25°C32°C 198518°C 199719%
Aug 2928°C25°C33°C 199119°C 198219%
Aug 3028°C25°C33°C 198818°C 199720%
Aug 3128°C25°C33°C 197419°C 198719%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Port Moresby, in percent.051015201102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+10).

August 1
sunrise 6:27 AM, sunset 6:09 PM
August 31
sunrise 6:14 AM, sunset 6:09 PM

Every day of August: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station PP000092035, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-30. Sun and moon: computed with the NOAA solar equations and Meeus.