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Cheju vs Jamestown Climate & Distance Between

Saint Helena flag
  • The distance between Cheju, North Korea and Jamestown, Saint Helena is approximately 14,863 km or 9,236 mi.
  • To reach Cheju in this distance one would set out from Jamestown bearing 58.6° or ENE and follow the great circles arc to approach Cheju bearing 100.2° or E .
  • Cheju has a humid subtropical climate (Cfa) whereas Jamestown has a subtropical hot desert climate (BWh).
  • The annual mean temperature is 6.6 °C (11.8°F) cooler.
  • Average monthly temperatures vary by 17.5 °C (31.5°F) more in Cheju. The continentality subtype is subcontinental as opposed to truly hyperoceanic.
  • Total annual precipitation averages 1286.8 mm (50.7 in) more which is equivalent to 1286.8 l/m² (31.58 US gal/ft²) or 12,868,000 l/ha (1,375,675 US gal/ac) more. About 10 2/5 as much.
  • The altitude of the sun at midday is overall 14° lower in Cheju than in Jamestown.
  • Relative humidity levels are 4.4% higher.
  • The mean dew point temperature is 5.3°C (9.5°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
average temperature iconAverage Temperature °C ( °F) -19 (-34) -18 (-33) -16 (-28) -11 (-19) -5 (-9) 0 (0) +6 (+10) +7 (+12) +3 (+5) -2 (-4) -9 (-15) -14 (-26) -7 (-12)
rainfall iconAverage Precipitation mm (in) +54 (+2) +60 (+2) +49 (+2) +87 (+3) +71 (+3) +166 (+7) +197 (+8) +231 (+9) +174 (+7) +72 (+3) +79 (+3) +47 (+2) +1287 (+51)
daylight iconAverage Daylight Hours & Minutes/ Day -2h 47' -1h 44' -0h 19' +1h 12' +2h 28' +3h 06' +2h 49' +1h 44' +0h 16' -1h 14' -2h 30' -3h 06'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -48.7 -37.8 -17.1 +6.1 +22.7 +29.2 +23.3 +6.6 -16.2 -37.9 -48.2 -49.4   -14
relative humidity iconRelative Humidity (%) +7 +5 +4.8 +7.9 +3.3 +8.3 +8 +4.4 +2.3 -0.3 -2 +4.6   +4.4
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -16.4 (-30) -16.4 (-30) -13.7 (-25) -8.5 (-15) -3.9 (-7) +1.6 (+3) +7.1 (+13) +7.3 (+13) +3.1 (+6) -2.3 (-4) -8.7 (-16) -12.7 (-23) -5.3 (-10)

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Cheju vs Jamestown Discussion

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