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Jamestown vs Koumac Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Koumac, New Caledonia is approximately 15,815 km or 9,828 mi.
  • To reach Jamestown in this distance one would set out from Koumac bearing 195.8° or SSW and follow the great circles arc to approach Jamestown bearing 344.6° or NNW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Koumac has a tropical wet and dry/ savanna climate with dry winters (Aw).
  • The mean annual temperature is 1.5 °C (2.6°F) cooler.
  • Average monthly temperatures vary by 2.2 °C (4°F) less in Jamestown. The continentality subtype is truly hyperoceanic for both.
  • Total annual precipitation averages 876.8 mm (34.5 in) less which is equivalent to 876.8 l/m² (21.52 US gal/ft²) or 8,768,000 l/ha (937,357 US gal/ac) less. About 1/7 as much.
  • The altitude of the sun at midday is overall 2.7° higher in Jamestown than in Koumac.

Climate Comparison Table

The table shows values for Jamestown relative to Koumac. You can also view this comparison the other way around from the perspective of Koumac vs Jamestown.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -3 (-5) -3 (-5) -1 (-3) -1 (-2) -3 (-5) -2 (-4) -2 (-4) -2 (-4) -3 (-6) -4 (-6) -5 (-9) -5 (-9) -3 (-5)
average temperature iconAverage Temperature °C ( °F) -2 (-4) -2 (-4) -2 (-3) 0 (-1) -1 (-1) 0 (-1) 0 (0) 0 (0) -1 (-2) -2 (-4) -3 (-5) -3 (-6) -1 (-3)
minimum temperature iconAverage Min Temperature °C ( °F) -2 (-3) -2 (-3) 0 (-1) +0 (+1) 0 (0) +0 (+0) +1 (+1) +1 (+1) +0 (+0) 0 (-1) -2 (-4) -2 (-4) -1 (-1)
rainfall iconAverage Precipitation mm (in) -165 (-6) -167 (-7) -107 (-4) -57 (-2) -42 (-2) -52 (-2) -20 (-1) -34 (-1) -34 (-1) -37 (-1) -64 (-3) -98 (-4) -877 (-35)
daylight iconAverage Daylight Hours & Minutes/ Day -0h 15' -0h 09' -0h 01' +0h 06' +0h 14' +0h 17' +0h 16' +0h 09' +0h 01' -0h 07' -0h 14' -0h 17'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -2.1 +4 +4.5 +4.5 +4.6 +4.7 +4.7 +4.8 +4.8 +4.2 -1.9 -4.6   +2.7

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Jamestown vs Koumac Discussion

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