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Jamestown vs Colombo Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Colombo, Sri Lanka is approximately 9,749 km or 6,058 mi.
  • To reach Jamestown in this distance one would set out from Colombo bearing 253.7° or WSW and follow the great circles arc to approach Jamestown bearing 262.1° or W .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Colombo has a tropical rainforest climate (Af).
  • The average annual temperature is 5.6 °C (10°F) cooler.
  • Average monthly temperatures vary by 2.3 °C (4.1°F) more in Jamestown. The continentality subtype is truly hyperoceanic as opposed to extremely hyperoceanic.
  • Total annual precipitation averages 2267 mm (89.3 in) less which is equivalent to 2267 l/m² (55.64 US gal/ft²) or 22,670,000 l/ha (2,423,573 US gal/ac) less. About 0 as much.
  • The altitude of the sun at midday is overall 3.7° lower in Jamestown than in Colombo.
  • Relative humidity levels are 10.2% lower.
  • The mean dew point temperature is 7.6°C (13.7°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -4 (-7) -4 (-8) -4 (-7) -5 (-9) -7 (-13) -7 (-13) -8 (-14) -8 (-14) -8 (-15) -7 (-13) -7 (-13) -6 (-12) -6 (-11)
average temperature iconAverage Temperature °C ( °F) -3 (-5) -3 (-5) -4 (-7) -4 (-8) -6 (-11) -7 (-12) -8 (-14) -8 (-14) -8 (-14) -7 (-13) -6 (-10) -5 (-8) -6 (-10)
minimum temperature iconAverage Min Temperature °C ( °F) -1 (-2) -2 (-3) -2 (-3) -4 (-6) -7 (-12) -8 (-14) -8 (-15) -8 (-15) -8 (-14) -6 (-11) -5 (-9) -4 (-7) -5 (-9)
rainfall iconAverage Precipitation mm (in) -54 (-2) -59 (-2) -110 (-4) -243 (-10) -364 (-14) -168 (-7) -92 (-4) -104 (-4) -231 (-9) -367 (-14) -310 (-12) -165 (-6) -2267 (-89)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -4 ( -13) -3 ( -11) -6 ( -19) -15 ( -50) -19 ( -61) -16 ( -53) -7 ( -23) -12 ( -39) -15 ( -50) -20 ( -65) -19 ( -63) -11 ( -35)   -147 ( -40)
daylight iconAverage Daylight Hours & Minutes/ Day +1h 11' +0h 44' +0h 08' -0h 30' -1h 03' -1h 19' -1h 12' -0h 44' -0h 07' +0h 31' +1h 04' +1h 19'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +22.1 +11.4 -9.4 -22.8 -22.8 -22.8 -22.7 -22.7 -10.2 +11.6 +21.7 +22.8   -3.7
relative humidity iconRelative Humidity (%) -12 -11 -14 -16 -10 -10 -7 -4 -5 -11 -10 -13   -10.3
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -5.3 (-10) -5.3 (-10) -6.7 (-12) -7.6 (-14) -8.2 (-15) -8.7 (-16) -8.8 (-16) -8.2 (-15) -8.3 (-15) -9.1 (-16) -7.6 (-14) -7.3 (-13) -7.6 (-14)

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