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Tristan Da Cunha vs Port Moresby Climate & Distance Between

Papua New Guinea flag
  • The distance between Tristan Da Cunha, Tristan Da Cunha and Port Moresby, Papua New Guinea is approximately 14,423 km or 8,963 mi.
  • To reach Tristan Da Cunha in this distance one would set out from Port Moresby bearing 201.3° or SSW and follow the great circles arc to approach Tristan Da Cunha bearing 333.4° or NNW .
  • Tristan Da Cunha has a marine west coast climate (Cfb) whereas Port Moresby has a tropical wet and dry/ savanna climate with dry winters (Aw).
  • The mean temperature is 11.9 °C (21.5°F) cooler.
  • Average monthly temperatures vary by 5 °C (9°F) more in Tristan Da Cunha. The continentality subtype is barely hyperoceanic as opposed to extremely hyperoceanic.
  • Total annual precipitation averages 531 mm (20.9 in) more which is equivalent to 531 l/m (13.03 US gal/ft) or 5,310,000 l/ha (567,674 US gal/ac) more. About 1 1/2 as much.
  • There are 995 fewer hours of sunlight per year in Tristan Da Cunha. In whichever way circa 2h 42' less per day or about 3/5 as many.
  • The altitude of the sun at midday is overall 20.7° lower in Tristan Da Cunha than in Port Moresby.
  • Relative humidity levels are 1.4% higher.
  • The mean dew point temperature is 11.2°C (20.2°F) lower.

Climate Comparison Table

The table shows values for Tristan Da Cunha relative to Port Moresby. You can also view this comparison the other way around from the perspective of Port Moresby vs Tristan Da Cunha.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
average temperature iconAverage Temperature °C ( °F) -10 (-18) -8 (-14) -9 (-16) -11 (-19) -12 (-22) -13 (-23) -14 (-24) -14 (-25) -15 (-27) -14 (-25) -13 (-23) -11 (-20) -12 (-21)
rainfall iconAverage Precipitation mm (in) -57 (-2) -81 (-3) -49 (-2) -44 (-2) +106 (+4) +129 (+5) +148 (+6) +138 (+5) +116 (+5) +131 (+5) +31 (+1) -37 (-1) +531 (+21)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +10 (+32) +9 (+32) +8 (+26) +15 (+50) +21 (+68) +20 (+67) +23 (+74) +24 (+77) +22 (+73) +20 (+65) +15 (+50) +13 (+42)   +200 (+55)
sunshine iconAverage Sunlight Hours/ Day -1h 07' -0h 12' -1h 19' -3h 06' -3h 38' -3h 54' -3h 27' -4h 00' -2h 44' -2h 38' -3h 44' -2h 40'   -2h 42'
daylight iconAverage Daylight Hours & Minutes/ Day +1h 44' +1h 05' +0h 11' -0h 44' -1h 32' -1h 57' -1h 46' -1h 05' -0h 10' +0h 46' +1h 34' +1h 57'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day () -6.6 -23.1 -27.6 -27.8 -27.7 -27.6 -27.5 -27.5 -27.4 -22.5 -6.4 +0.4   -20.7
relative humidity iconRelative Humidity (%) +3 -1 -3 -3 -8 +1 +3 +5 +5 +3 +6 +6   +1.4
dewpoint temperature iconAverage Dew Point Temperature C & (F) -9.1 (-16) -7.9 (-14) -9.3 (-17) -10.8 (-19) -13.3 (-24) -12.5 (-23) -12.4 (-22) -12.5 (-23) -13.4 (-24) -13 (-23) -11.3 (-20) -9.4 (-17) -11.2 (-20)

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Tristan Da Cunha vs Port Moresby Discussion

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