Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Port Moresby weather records

Record high and low temperatures for Port Moresby, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 33°C on 2018-12-13; its coldest fell to 18°C on 2004-08-12.

Records by month

The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.

MonthDaytime highOvernight low
January
33°C2013-01-22
25°C1990-01-26
28°C2008-01-06
22°C1985-01-19
February
33°C2024-02-01
25°C1988-02-19
27°C2019-02-03
21°C1988-02-20
March
33°C2023-03-08
24°C1985-03-28
27°C2016-03-17
20°C1981-03-13
April
32°C2026-04-17
25°C2008-04-05
28°C2026-04-20
20°C1997-04-16
May
31°C2022-05-10
24°C1994-05-11
27°C2026-05-03
19°C1997-05-31
June
31°C2002-06-14
23°C2004-06-25
26°C2026-06-24
18°C1982-06-20
July
31°C2010-07-26
23°C1984-07-04
25°C2026-07-07
18°C1982-07-19
August
31°C2010-08-22
23°C1982-08-04
25°C2024-08-17
18°C2004-08-12
September
31°C2010-09-08
25°C2018-09-19
25°C2022-09-18
18°C1997-09-07
October
32°C2001-10-31
25°C2002-10-08
26°C2022-10-31
19°C1993-10-12
November
33°C2021-11-11
25°C2007-11-13
26°C2024-11-28
20°C1996-11-04
December
33°C2018-12-13
25°C1989-12-18
28°C2021-12-29
20°C2012-12-16

Records by season

The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Southern Hemisphere, each a three-month span).

SeasonDaytime highOvernight low
Summer (Dec–Feb)
33°C2018-12-13
25°C1988-02-19
28°C2021-12-29
20°C2012-12-16
Autumn (Mar–May)
33°C2023-03-08
24°C1994-05-11
28°C2026-04-20
19°C1997-05-31
Winter (Jun–Aug)
31°C2010-08-22
23°C2004-06-25
26°C2026-06-24
18°C2004-08-12
Spring (Sep–Nov)
33°C2021-11-11
25°C2018-09-19
26°C2024-11-28
18°C1997-09-07

All-time records

The most extreme value Port Moresby has recorded for each metric across its entire history.

High

Highest 33°C 2018-12-13
Lowest 23°C 2004-06-25

Low

Highest 28°C 2021-12-29
Lowest 18°C 2004-08-12

Feels-like

Highest 47°C 2021-11-11
Lowest 23°C 2004-06-25

Humidity

Highest 24.9 g/m³ 2026-04-17
Lowest 12.6 g/m³ 2006-08-07

Wind

Highest 42 km/h 2026-05-12
Lowest 4 km/h 1997-01-13

Gust

Highest 98 km/h 2019-01-02
Lowest 13 km/h 2012-02-12

Precip

Wettest 241 mm 2023-05-29
Driest 9-day dry spell 1997-09-04

For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.

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