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Monthly climate in Port Moresby, Papua New Guinea

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Port Moresby features a tropical rainforest climate (Af).Temperatures typically range between 25 °C (78 °F) and 27 °C (81 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 33 °C (93 °F).The average annual precipitation amounts to about 1757 mm (69.2 inches) and receives 202 rainy days on the 1 mm (0.04 inches) threshold annually.Port Moresby enjoys an average of 3242 hours of sunshine throughout the year, and daylight varies from 11 hours 33 minutes to 12 hours 39 minutes per day.

Monthly average temperatures in Port Moresby, Papua New Guinea §

The warmest months in Port Moresby are January, February and December, with daily mean temperatures ranging from 27 to 27 °C (81 - 81 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 25 to 25 °C (78 - 78 °F) throughout the day. On average each year, Port Moresby experiences 328 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Port Moresby, Papua New Guinea.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 33°C
(91°F)		 33°C
(91°F)		 32°C
(89°F)		 31°C
(88°F)		 31°C
(89°F)		 30°C
(87°F)		 30°C
(86°F)		 30°C
(86°F)		 30°C
(87°F)		 31°C
(88°F)		 33°C
(91°F)		 33°C
(93°F)
Mean maximum 32°C
(90°F)		 32°C
(90°F)		 31°C
(88°F)		 31°C
(87°F)		 30°C
(87°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 30°C
(87°F)		 31°C
(89°F)		 32°C
(90°F)
Average high 30°C
(86°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 28°C
(83°F)		 28°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)		 30°C
(86°F)		 30°C
(87°F)
Daily mean 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(81°F)
Average low 25°C
(77°F)		 25°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(76°F)		 25°C
(77°F)
Mean minimum 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)		 22°C
(71°F)		 21°C
(70°F)		 22°C
(71°F)		 22°C
(73°F)		 22°C
(73°F)		 23°C
(74°F)
Minimum 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(70°F)		 20°C
(69°F)		 21°C
(69°F)		 19°C
(66°F)		 21°C
(70°F)		 21°C
(69°F)		 23°C
(73°F)

Compare climate in Port Moresby with other places

Compare temperature, precipitation, sunshine, UV index in Port Moresby, Papua New Guinea with other places around the world.

Monthly average precipitation in Port Moresby, Papua New Guinea §

Port Moresby usually has the most precipitation in January, March and April, with an average of 24 rainy days and 266 mm (10.5 inches) of precipitation per month.The driest months in Port Moresby are June, July and August. On average, 55 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Port Moresby, Papua New Guinea.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 276 (10.9) 200 (7.9) 307 (12.1) 215 (8.5) 95 (3.8) 63 (2.5) 45 (1.8) 58 (2.3) 81 (3.2) 119 (4.7) 130 (5.1) 169 (6.7)
Average precipitation days (≥ 1 mm) 22 21 28 24 13 9 8 10 11 17 17 22

Monthly sunshine hours in Port Moresby, Papua New Guinea §

The sunniest months in Port Moresby are August, November and December, when the sun shines an average of 9 hours 32 minutes a day.Least sunny months in Port Moresby: January, March and April receive an average of 7 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Port Moresby, Papua New Guinea.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 212 250 246 247 285 271 284 288 278 288 291 297
Mean daily daylight hours 12h 35m 12h 23m 12h 7m 11h 52m 11h 40m 11h 33m 11h 36m 11h 47m 12h 2m 12h 17m 12h 32m 12h 39m

Solar UV radiation in Port Moresby, Papua New Guinea §

Port Moresby experiences the highest level of ultraviolet (UV) radiation in February, March and April, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure.May, June and July are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Port Moresby UV Index data.

Average daily maximum UV levels by month for Port Moresby, Papua New Guinea.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 15 16 16 15 12 10 11 13 15 15 14 15