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Jamestown vs Siemreap Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Siemreap, Cambodia is approximately 12,469 km or 7,748 mi.
  • To reach Jamestown in this distance one would set out from Siemreap bearing 258° or WSW and follow the great circles arc to approach Jamestown bearing 261.7° or W .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Siemreap has a tropical wet and dry/ savanna climate with dry winters (Aw).
  • The average temperature is 4.8 °C (8.6°F) cooler.
  • Average monthly temperatures vary by 1 °C (1.8°F) less in Jamestown. The continentality subtype is truly hyperoceanic for both.
  • Total annual precipitation averages 1144 mm (45 in) less which is equivalent to 1144 l/m² (28.08 US gal/ft²) or 11,440,000 l/ha (1,223,012 US gal/ac) less. About 1/9 as much.
  • The altitude of the sun at midday is overall 1.9° lower in Jamestown than in Siemreap.
  • Relative humidity levels are 9.7% lower.
  • The mean dew point temperature is 6.7°C (12.1°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
average temperature iconAverage Temperature °C ( °F) 0 (0) -2 (-4) -4 (-7) -5 (-9) -6 (-11) -7 (-13) -7 (-13) -7 (-13) -7 (-13) -6 (-11) -4 (-7) -2 (-4) -5 (-9)
rainfall iconAverage Precipitation mm (in) +8 (+0) +2 (+0) -2 (0) -36 (-1) -83 (-3) -126 (-5) -148 (-6) -209 (-8) -213 (-8) -261 (-10) -73 (-3) -3 (0) -1144 (-45)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +4 (+13) +3 (+11) +3 (+10) -2 ( -7) -6 ( -19) -9 ( -30) -7 ( -23) -14 ( -45) -16 ( -53) -15 ( -48) -6 ( -20) 0 ( 0)   -65 ( -18)
daylight iconAverage Daylight Hours & Minutes/ Day +1h 31' +0h 57' +0h 10' -0h 39' -1h 21' -1h 42' -1h 32' -0h 57' -0h 09' +0h 41' +1h 22' +1h 42'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +28.6 +17.8 -3 -26.2 -29.3 -29.2 -29.1 -26.5 -3.9 +17.9 +28.1 +29.3   -1.9
relative humidity iconRelative Humidity (%) -11 -8 -8 -8 -6 -10 -10 -9 -11 -14 -10 -12   -9.8
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -2.6 (-5) -3.8 (-7) -5.7 (-10) -6.7 (-12) -7.1 (-13) -8.8 (-16) -8.9 (-16) -8.7 (-16) -9.1 (-16) -8.7 (-16) -5.9 (-11) -4.6 (-8) -6.7 (-12)

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Jamestown vs Siemreap Discussion

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