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Jamestown vs Boke Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Boke, Guinea is approximately 3,149 km or 1,957 mi.
  • To reach Jamestown in this distance one would set out from Boke bearing 161.3° or SSE and follow the great circles arc to approach Jamestown bearing 160.9° or SSE .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Boke has a tropical wet and dry/ savanna climate with dry winters (Aw).
  • The average annual temperature is 5.5 °C (9.8°F) cooler.
  • Average monthly temperatures vary by 1.7 °C (3.1°F) less in Jamestown. The continentality subtype is truly hyperoceanic for both.
  • Total annual precipitation averages 2075.3 mm (81.7 in) less which is equivalent to 2075.3 l/m (50.93 US gal/ft) or 20,753,000 l/ha (2,218,633 US gal/ac) less. About 0 as much.
  • The altitude of the sun at midday is overall 2.8° lower in Jamestown than in Boke.
  • Relative humidity levels are 1.6% higher.
  • The mean dew point temperature is 4.6°C (8.3°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -13 (-23) -11 (-21) -13 (-23) -13 (-24) -15 (-26) -12 (-22) -11 (-19) -10 (-19) -11 (-20) -11 (-20) -13 (-23) -12 (-21) -12 (-22)
average temperature iconAverage Temperature °C ( °F) -2 (-4) -4 (-7) -5 (-9) -6 (-10) -6 (-11) -6 (-11) -7 (-13) -5 (-10) -4 (-7) -7 (-12) -7 (-13) -5 (-9) -5 (-10)
minimum temperature iconAverage Min Temperature °C ( °F) +7 (+12) +5 (+10) +4 (+8) +1 (+2) -2 (-3) -2 (-4) -4 (-7) -4 (-6) -3 (-5) -2 (-4) 0 (0) +5 (+8) +0 (+1)
rainfall iconAverage Precipitation mm (in) +8 (+0) +10 (+0) +20 (+1) +1 (+0) -87 (-3) -240 (-9) -452 (-18) -414 (-16) -540 (-21) -315 (-12) -67 (-3) +1 (+0) -2075 (-82)
daylight iconAverage Daylight Hours & Minutes/ Day +1h 23' +0h 52' +0h 09' -0h 36' -1h 14' -1h 33' -1h 25' -0h 52' -0h 08' +0h 37' +1h 15' +1h 33'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day () +26.1 +15.3 -5.6 -26.7 -26.8 -26.8 -26.8 -26.7 -6.1 +15.6 +25.8 +26.9   -2.8
relative humidity iconRelative Humidity (%) +10 +7 +11 +10 +5 -4 -1 -6 -17 -6 +3 +7   +1.6
dewpoint temperature iconAverage Dew Point Temperature C & (F) +0.5 (+1) -1.9 (-3) -1.7 (-3) -2.7 (-5) -4.9 (-9) -6.7 (-12) -7.4 (-13) -6.5 (-12) -7.2 (-13) -7.8 (-14) -6.2 (-11) -3.1 (-6) -4.6 (-8)

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Jamestown vs Boke Discussion

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