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Best time to visit Papua New Guinea

In Port Moresby: July to September. Every month in Port Moresby averages above 27 °C by day, so the choice here is rain rather than temperature — those are the driest three months in a row.

Papua New Guinea is not one climate. Each reference city below is answered on its own numbers.

Port Moresby

  1. January: 30 °C by day, 24 °C at night, 241 mm of rain
  2. February: 30 °C by day, 23 °C at night, 211 mm of rain
  3. March: 29 °C by day, 23 °C at night, 285 mm of rain
  4. April: 29 °C by day, 23 °C at night, 188 mm of rain
  5. May: 29 °C by day, 23 °C at night, 88 mm of rain
  6. June: 29 °C by day, 23 °C at night, 56 mm of rain
  7. July: 28 °C by day, 23 °C at night, 34 mm of rain, recommended
  8. August: 29 °C by day, 22 °C at night, 33 mm of rain, recommended
  9. September: 30 °C by day, 23 °C at night, 51 mm of rain, recommended
  10. October: 30 °C by day, 23 °C at night, 74 mm of rain
  11. November: 30 °C by day, 23 °C at night, 115 mm of rain
  12. December: 30 °C by day, 24 °C at night, 179 mm of rain
Warmest
January, 30 °C
Coolest
July, 28 °C
Driest
August, 33 mm
Wettest
March, 285 mm

Lae

June to October — 18–27 °C by day. 6 of the twelve months clear that band in Lae, so this is the driest run of 5 in a row.

  1. January: 29 °C by day, 23 °C at night, 458 mm of rain
  2. February: 29 °C by day, 23 °C at night, 405 mm of rain
  3. March: 28 °C by day, 23 °C at night, 531 mm of rain
  4. April: 28 °C by day, 22 °C at night, 631 mm of rain
  5. May: 27 °C by day, 22 °C at night, 637 mm of rain
  6. June: 26 °C by day, 22 °C at night, 589 mm of rain, recommended
  7. July: 26 °C by day, 21 °C at night, 571 mm of rain, recommended
  8. August: 26 °C by day, 21 °C at night, 563 mm of rain, recommended
  9. September: 26 °C by day, 21 °C at night, 506 mm of rain, recommended
  10. October: 27 °C by day, 22 °C at night, 458 mm of rain, recommended
  11. November: 28 °C by day, 22 °C at night, 527 mm of rain
  12. December: 28 °C by day, 23 °C at night, 568 mm of rain
Warmest
January, 29 °C
Coolest
June, 26 °C
Driest
February, 405 mm
Wettest
May, 637 mm

Mount Hagen

May to September — 18–27 °C by day. 12 of the twelve months clear that band in Mount Hagen, so this is the driest run of 5 in a row.

  1. January: 23 °C by day, 14 °C at night, 428 mm of rain
  2. February: 22 °C by day, 14 °C at night, 428 mm of rain
  3. March: 22 °C by day, 14 °C at night, 439 mm of rain
  4. April: 22 °C by day, 14 °C at night, 334 mm of rain
  5. May: 22 °C by day, 14 °C at night, 232 mm of rain, recommended
  6. June: 22 °C by day, 13 °C at night, 171 mm of rain, recommended
  7. July: 21 °C by day, 13 °C at night, 205 mm of rain, recommended
  8. August: 22 °C by day, 13 °C at night, 215 mm of rain, recommended
  9. September: 22 °C by day, 13 °C at night, 233 mm of rain, recommended
  10. October: 22 °C by day, 13 °C at night, 266 mm of rain
  11. November: 23 °C by day, 14 °C at night, 289 mm of rain
  12. December: 23 °C by day, 14 °C at night, 360 mm of rain
Warmest
January, 23 °C
Coolest
July, 21 °C
Driest
June, 171 mm
Wettest
March, 439 mm

How this is worked out: a month qualifies when its mean daytime high falls between 18 °C and 27 °C. Where more than five qualify, the answer is the driest run of consecutive qualifying months; where none do, it is the driest three months in a row if the year is hot throughout, or the warmest three if it never gets there. The figures are the thirty-year monthly averages charted below, and they are averages, not a forecast — any single year can miss them by a wide margin.

Port Moresby

Long-term averages for Port Moresby: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
202530°C0500mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 30 °C, Night 24 °C, Rain 241 mm. February: Day 30 °C, Night 23 °C, Rain 211 mm. March: Day 29 °C, Night 23 °C, Rain 285 mm. April: Day 29 °C, Night 23 °C, Rain 188 mm. May: Day 29 °C, Night 23 °C, Rain 88 mm. June: Day 29 °C, Night 23 °C, Rain 56 mm. July: Day 28 °C, Night 23 °C, Rain 34 mm. August: Day 29 °C, Night 22 °C, Rain 33 mm. September: Day 30 °C, Night 23 °C, Rain 51 mm. October: Day 30 °C, Night 23 °C, Rain 74 mm. November: Day 30 °C, Night 23 °C, Rain 115 mm. December: Day 30 °C, Night 24 °C, Rain 179 mm
Show the monthly table
Port Moresby
MonthDay (°C)Night (°C)Rain (mm)
January3024241
February3023211
March2923285
April2923188
May292388
June292356
July282334
August292233
September302351
October302374
November3023115
December3024179

Lae

Long-term averages for Lae: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
202530°C01000mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 29 °C, Night 23 °C, Rain 458 mm. February: Day 29 °C, Night 23 °C, Rain 405 mm. March: Day 28 °C, Night 23 °C, Rain 531 mm. April: Day 28 °C, Night 22 °C, Rain 631 mm. May: Day 27 °C, Night 22 °C, Rain 637 mm. June: Day 26 °C, Night 22 °C, Rain 589 mm. July: Day 26 °C, Night 21 °C, Rain 571 mm. August: Day 26 °C, Night 21 °C, Rain 563 mm. September: Day 26 °C, Night 21 °C, Rain 506 mm. October: Day 27 °C, Night 22 °C, Rain 458 mm. November: Day 28 °C, Night 22 °C, Rain 527 mm. December: Day 28 °C, Night 23 °C, Rain 568 mm
Show the monthly table
Lae
MonthDay (°C)Night (°C)Rain (mm)
January2923458
February2923405
March2823531
April2822631
May2722637
June2622589
July2621571
August2621563
September2621506
October2722458
November2822527
December2823568

Mount Hagen

Long-term averages for Mount Hagen: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).

DayNight
10152025°C0500mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 23 °C, Night 14 °C, Rain 428 mm. February: Day 22 °C, Night 14 °C, Rain 428 mm. March: Day 22 °C, Night 14 °C, Rain 439 mm. April: Day 22 °C, Night 14 °C, Rain 334 mm. May: Day 22 °C, Night 14 °C, Rain 232 mm. June: Day 22 °C, Night 13 °C, Rain 171 mm. July: Day 21 °C, Night 13 °C, Rain 205 mm. August: Day 22 °C, Night 13 °C, Rain 215 mm. September: Day 22 °C, Night 13 °C, Rain 233 mm. October: Day 22 °C, Night 13 °C, Rain 266 mm. November: Day 23 °C, Night 14 °C, Rain 289 mm. December: Day 23 °C, Night 14 °C, Rain 360 mm
Show the monthly table
Mount Hagen
MonthDay (°C)Night (°C)Rain (mm)
January2314428
February2214428
March2214439
April2214334
May2214232
June2213171
July2113205
August2213215
September2213233
October2213266
November2314289
December2314360

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Sources (1)

What this guide was checked against. Rules and prices change — follow the official link before you rely on a detail.