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Port Moresby vs Saint John’s Climate

94%match

Port Moresby vs Saint John’s: a 94% climate match. Compared with Port Moresby, Saint John’s has the same daytime highs, more sun and less rain in the wet season.

Port Moresby gets 59 in (1499 mm) of rain a year and Saint John’s 48 in (1229 mm). Port Moresby's warmest month is December, at 91°F (33°C); Saint John’s's is August, at 89°F (32°C).

Saint John’s is in the Northern Hemisphere, so its seasons are flipped: Port Moresby's July is most like Saint John’s's January.

JanFebMarAprMayJunJulAugSepOctNovDecJFMAMJJASOND
Port Moresby
JanFebMarAprMayJunJulAugSepOctNovDecJFMAMJJASOND
Saint John’s

Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.

Month by month

Highs and lows (°F)

Port MoresbySaint John’s (6 months later)solid = high, dashed = low

70°80°90°100°JFMAMJJASONDPort Moresby Jan: 90°Port Moresby Feb: 90°Port Moresby Mar: 89°Port Moresby Apr: 88°Port Moresby May: 87°Port Moresby Jun: 86°Port Moresby Jul: 84°Port Moresby Aug: 84°Port Moresby Sep: 86°Port Moresby Oct: 88°Port Moresby Nov: 90°Port Moresby Dec: 91°Port Moresby Jan: 75°Port Moresby Feb: 75°Port Moresby Mar: 74°Port Moresby Apr: 74°Port Moresby May: 75°Port Moresby Jun: 73°Port Moresby Jul: 73°Port Moresby Aug: 73°Port Moresby Sep: 73°Port Moresby Oct: 74°Port Moresby Nov: 74°Port Moresby Dec: 75°Saint John’s (6 months later) Jan: 88°Saint John’s (6 months later) Feb: 89°Saint John’s (6 months later) Mar: 89°Saint John’s (6 months later) Apr: 88°Saint John’s (6 months later) May: 86°Saint John’s (6 months later) Jun: 85°Saint John’s (6 months later) Jul: 84°Saint John’s (6 months later) Aug: 84°Saint John’s (6 months later) Sep: 85°Saint John’s (6 months later) Oct: 86°Saint John’s (6 months later) Nov: 87°Saint John’s (6 months later) Dec: 88°Saint John’s (6 months later) Jan: 78°Saint John’s (6 months later) Feb: 78°Saint John’s (6 months later) Mar: 77°Saint John’s (6 months later) Apr: 77°Saint John’s (6 months later) May: 75°Saint John’s (6 months later) Jun: 74°Saint John’s (6 months later) Jul: 73°Saint John’s (6 months later) Aug: 72°Saint John’s (6 months later) Sep: 73°Saint John’s (6 months later) Oct: 74°Saint John’s (6 months later) Nov: 76°Saint John’s (6 months later) Dec: 78°

Rain (in per month)

Port MoresbySaint John’s (6 months later)

051015JFMAMJJASONDPort Moresby Jan: 8.0Port Moresby Feb: 6.3Port Moresby Mar: 10Port Moresby Apr: 5.5Port Moresby May: 4.5Port Moresby Jun: 3.5Port Moresby Jul: 1.4Port Moresby Aug: 1.7Port Moresby Sep: 3.6Port Moresby Oct: 4.8Port Moresby Nov: 3.7Port Moresby Dec: 5.8Saint John’s (6 months later) Jan: 4.2Saint John’s (6 months later) Feb: 5.9Saint John’s (6 months later) Mar: 6.5Saint John’s (6 months later) Apr: 5.5Saint John’s (6 months later) May: 5.0Saint John’s (6 months later) Jun: 4.4Saint John’s (6 months later) Jul: 3.6Saint John’s (6 months later) Aug: 1.8Saint John’s (6 months later) Sep: 1.9Saint John’s (6 months later) Oct: 2.2Saint John’s (6 months later) Nov: 3.8Saint John’s (6 months later) Dec: 3.5

Monthly averages

Average monthly highs, lows and rain in Port Moresby and Saint John’s
MonthHighLowRain
Port MoresbySaint John’sPort MoresbySaint John’sPort MoresbySaint John’s
Jan90°F(32°C)84°F(29°C)75°F(24°C)73°F(23°C)8.0 in(202 mm)3.6 in(91 mm)
Feb90°F(32°C)84°F(29°C)74°F(24°C)72°F(22°C)6.3 in(160 mm)1.8 in(46 mm)
Mar89°F(32°C)85°F(29°C)74°F(24°C)73°F(23°C)10 in(256 mm)1.9 in(48 mm)
Apr88°F(31°C)86°F(30°C)74°F(23°C)74°F(24°C)5.5 in(139 mm)2.2 in(57 mm)
May87°F(31°C)87°F(30°C)74°F(24°C)76°F(25°C)4.5 in(114 mm)3.8 in(97 mm)
Jun86°F(30°C)88°F(31°C)73°F(23°C)78°F(25°C)3.5 in(90 mm)3.5 in(88 mm)
Jul84°F(29°C)88°F(31°C)73°F(23°C)78°F(25°C)1.4 in(36 mm)4.2 in(107 mm)
Aug84°F(29°C)89°F(32°C)73°F(23°C)78°F(26°C)1.7 in(44 mm)5.9 in(150 mm)
Sep86°F(30°C)89°F(32°C)73°F(23°C)77°F(25°C)3.6 in(92 mm)6.5 in(166 mm)
Oct88°F(31°C)88°F(31°C)74°F(23°C)77°F(25°C)4.8 in(123 mm)5.6 in(141 mm)
Nov90°F(32°C)86°F(30°C)74°F(23°C)75°F(24°C)3.7 in(95 mm)5.0 in(126 mm)
Dec91°F(33°C)85°F(29°C)75°F(24°C)74°F(23°C)5.8 in(148 mm)4.4 in(112 mm)

1991–2020 averages, by calendar month.

More comparisons

Places like Port Moresby →Places like Saint John’s →