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Jamestown vs Port-Gentil Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Port-Gentil, Gabon is approximately 2,320 km or 1,441 mi.
  • To reach Jamestown in this distance one would set out from Port-Gentil bearing 222.4° or SW and follow the great circles arc to approach Jamestown bearing 224.5° or SW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Port-Gentil has a tropical wet and dry/ savanna climate with dry winters (Aw).
  • The annual average temperature is 4.2 °C (7.5°F) cooler.
  • Average monthly temperatures vary by 0.2 °C (0.4°F) more in Jamestown. The continentality subtype is truly hyperoceanic for both.
  • Total annual precipitation averages 1816.2 mm (71.5 in) less which is equivalent to 1816.2 l/m² (44.57 US gal/ft²) or 18,162,000 l/ha (1,941,638 US gal/ac) less. About 0 as much.
  • The altitude of the sun at midday is overall 4.1° lower in Jamestown than in Port-Gentil.
  • Relative humidity levels are 14.4% lower.
  • The mean dew point temperature is 7.1°C (12.8°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -3 (-5) -3 (-6) -2 (-4) -3 (-5) -5 (-9) -4 (-7) -4 (-7) -5 (-10) -6 (-10) -5 (-10) -6 (-10) -5 (-9) -4 (-8)
average temperature iconAverage Temperature °C ( °F) -3 (-5) -3 (-6) -3 (-6) -3 (-6) -5 (-8) -3 (-6) -4 (-6) -5 (-8) -5 (-10) -6 (-11) -5 (-9) -5 (-8) -4 (-7)
minimum temperature iconAverage Min Temperature °C ( °F) -3 (-6) -3 (-6) -2 (-4) -3 (-6) -5 (-9) -4 (-7) -4 (-7) -5 (-9) -6 (-11) -6 (-10) -6 (-10) -5 (-9) -4 (-8)
rainfall iconAverage Precipitation mm (in) -240 (-9) -168 (-7) -247 (-10) -289 (-11) -133 (-5) +7 (+0) +30 (+1) +5 (+0) -27 (-1) -178 (-7) -352 (-14) -224 (-9) -1816 (-72)
daylight iconAverage Daylight Hours & Minutes/ Day +0h 47' +0h 29' +0h 05' -0h 20' -0h 42' -0h 53' -0h 48' -0h 29' -0h 04' +0h 21' +0h 43' +0h 53'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +14.5 +4 -14.2 -15.2 -15.2 -15.2 -15.2 -15.2 -14.4 +4.4 +14.3 +15.2   -4.1
relative humidity iconRelative Humidity (%) -21 -19 -19 -19 -13 -12 -9 -6 -7 -12 -14 -22   -14.4
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -7.5 (-14) -7.4 (-13) -7.4 (-13) -7.2 (-13) -7.2 (-13) -5.7 (-10) -5.2 (-9) -5.8 (-10) -6.7 (-12) -8.2 (-15) -7.8 (-14) -9.1 (-16) -7.1 (-13)

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Jamestown vs Port-Gentil Discussion

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