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Jamestown vs Georgetown Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Georgetown, Ascension Island is approximately 1,298 km or 807 mi.
  • To reach Jamestown in this distance one would set out from Georgetown bearing 134° or SE and follow the great circles arc to approach Jamestown bearing 132.2° or SE .
  • Both have a subtropical hot desert climate (BWh).
  • The average annual temperature is 4.2 °C (7.5°F) cooler.
  • Average monthly temperatures vary by 2 °C (3.6°F) more in Jamestown. The continentality subtype is truly hyperoceanic as opposed to extremely hyperoceanic.
  • Total annual precipitation averages 5 mm (0.2 in) less which is equivalent to 5 l/m (0.12 US gal/ft) or 50,000 l/ha (5,345 US gal/ac) less. About 1 as much.
  • The altitude of the sun at midday is overall 3° lower in Jamestown than in Georgetown.
  • Relative humidity levels are 0.9% higher.
  • The mean dew point temperature is 3.8°C (6.9°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -3 (-5) -4 (-7) -3 (-5) -4 (-7) -7 (-13) -7 (-13) -7 (-13) -6 (-11) -6 (-11) -5 (-9) -5 (-9) -5 (-9) -5 (-9)
average temperature iconAverage Temperature °C ( °F) -2 (-4) -3 (-5) -3 (-5) -3 (-5) -5 (-9) -5 (-9) -6 (-11) -5 (-9) -5 (-9) -5 (-9) -4 (-7) -4 (-7) -4 (-8)
minimum temperature iconAverage Min Temperature °C ( °F) -2 (-4) -2 (-4) -2 (-4) -3 (-5) -5 (-9) -5 (-9) -5 (-9) -5 (-9) -5 (-9) -4 (-7) -4 (-7) -3 (-5) -4 (-7)
rainfall iconAverage Precipitation mm (in) +4 (+0) +0 (+0) +2 (+0) -23 (-1) +2 (+0) +3 (+0) +21 (+1) -1 (0) -3 (0) -5 (0) -4 (0) -1 (0) -5 (0)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +2 (+6) +2 (+7) +2 (+6) -1 ( -3) +1 (+3) +3 (+10) +5 (+16) 0 ( 0) 0 ( 0) -2 ( -6) -1 ( -3) 0 ( 0)   +11 (+3)
daylight iconAverage Daylight Hours & Minutes/ Day +0h 25' +0h 16' +0h 02' -0h 11' -0h 22' -0h 28' -0h 26' -0h 16' -0h 02' +0h 11' +0h 23' +0h 28'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day () +7.4 -2.2 -7.9 -7.9 -7.9 -8 -8 -8 -7.9 -1.6 +7.2 +8   -3
relative humidity iconRelative Humidity (%) -7 -4 -5 -4 +4 +4 +7 +8 +6 +3 +3 -4   +0.9
dewpoint temperature iconAverage Dew Point Temperature C & (F) -3.6 (-6) -3.8 (-7) -4 (-7) -3.8 (-7) -3.9 (-7) -3.8 (-7) -4.2 (-8) -3.1 (-6) -3.5 (-6) -4.1 (-7) -3.1 (-6) -4.8 (-9) -3.8 (-7)

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Jamestown vs Georgetown Discussion

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