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Jamestown vs Sao Tome Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Sao Tome, Sao Tome And Principe is approximately 2,269 km or 1,410 mi.
  • To reach Jamestown in this distance one would set out from Sao Tome bearing 216.4° or SW and follow the great circles arc to approach Jamestown bearing 218.1° or SW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Sao Tome has a tropical wet and dry/ savanna climate with dry summers (As).
  • The annual mean temperature is 3.7 °C (6.6°F) cooler.
  • Average monthly temperatures vary by 0 °C (0°F) more in Jamestown. The continentality subtype is truly hyperoceanic for both.
  • Total annual precipitation averages 735 mm (28.9 in) less which is equivalent to 735 l/m² (18.04 US gal/ft²) or 7,350,000 l/ha (785,764 US gal/ac) less. About 1/6 as much.
  • The altitude of the sun at midday is overall 4.2° lower in Jamestown than in Sao Tome.
  • Relative humidity levels are 6.5% lower.
  • The mean dew point temperature is 5°C (9°F) lower.

Climate Comparison Table

The table shows values for Jamestown relative to Sao Tome. You can also view this comparison the other way around from the perspective of Sao Tome 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 (-5) -3 (-5) -3 (-5) -5 (-9) -5 (-9) -6 (-11) -6 (-11) -7 (-13) -6 (-11) -6 (-11) -5 (-9) -5 (-9)
average temperature iconAverage Temperature °C ( °F) -4 (-7) -2 (-4) -2 (-4) -2 (-4) -4 (-7) -4 (-7) -4 (-7) -4 (-7) -5 (-9) -5 (-9) -4 (-7) -4 (-7) -4 (-7)
minimum temperature iconAverage Min Temperature °C ( °F) -2 (-4) -2 (-4) -1 (-2) -2 (-4) -4 (-7) -4 (-7) -4 (-7) -4 (-7) -4 (-7) -4 (-7) -4 (-7) -3 (-5) -3 (-6)
rainfall iconAverage Precipitation mm (in) -74 (-3) -74 (-3) -112 (-4) -110 (-4) -95 (-4) +2 (+0) +33 (+1) +9 (+0) -13 (-1) -106 (-4) -100 (-4) -95 (-4) -735 (-29)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -4 ( -13) -4 ( -14) -7 ( -23) -8 ( -27) -6 ( -19) +3 (+10) +6 (+19) 0 ( 0) -4 ( -13) -11 ( -35) -11 ( -37) -7 ( -23)   -53 ( -15)
daylight iconAverage Daylight Hours & Minutes/ Day +0h 51' +0h 32' +0h 05' -0h 22' -0h 45' -0h 57' -0h 51' -0h 32' -0h 05' +0h 22' +0h 46' +0h 57'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +15.6 +5 -14.5 -16.3 -16.3 -16.3 -16.3 -16.3 -14.9 +5.4 +15.3 +16.3   -4.2
relative humidity iconRelative Humidity (%) -15 -13 -12 -12 -7 -2 +4 +6 +1 -7 -7 -14   -6.5
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -7.3 (-13) -4.9 (-9) -4.6 (-8) -4.7 (-8) -5.4 (-10) -4.2 (-8) -3 (-5) -2.6 (-5) -4.6 (-8) -6.3 (-11) -5.3 (-10) -7 (-13) -5 (-9)

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