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Jamestown vs Antananarivo Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Antananarivo, Madagascar is approximately 5,635 km or 3,502 mi.
  • To reach Jamestown in this distance one would set out from Antananarivo bearing 264.5° or W and follow the great circles arc to approach Jamestown bearing 281.5° or WNW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Antananarivo has a subtropical highland climate with dry winters (Cwb).
  • The average temperature is 3.9 °C (7°F) warmer.
  • Average monthly temperatures vary by 2.6 °C (4.7°F) less in Jamestown. The continentality subtype is truly hyperoceanic for both.
  • Total annual precipitation averages 1319.3 mm (51.9 in) less which is equivalent to 1319.3 l/m² (32.38 US gal/ft²) or 13,193,000 l/ha (1,410,419 US gal/ac) less. About 0 as much.
  • The altitude of the sun at midday is overall 1.6° higher in Jamestown than in Antananarivo.
  • Relative humidity levels are 8.5% lower.
  • The mean dew point temperature is 1.9°C (3.5°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +1 (+1) +1 (+1) +2 (+4) +2 (+3) +1 (+1) +2 (+3) +2 (+3) +1 (+2) +-2 (-3) +-3 (-5) +-4 (-6) +-2 (-4) +0 (0)
average temperature iconAverage Temperature °C ( °F) +4 (+6) +3 (+6) +4 (+7) +5 (+9) +5 (+9) +6 (+12) +6 (+11) +6 (+10) +4 (+7) +2 (+3) +1 (+2) +2 (+3) +4 (+7)
minimum temperature iconAverage Min Temperature °C ( °F) +4 (+8) +4 (+8) +6 (+10) +6 (+11) +7 (+12) +8 (+14) +8 (+14) +7 (+13) +6 (+12) +5 (+9) +3 (+6) +3 (+5) +6 (+10)
rainfall iconAverage Precipitation mm (in) -266 (-10) -269 (-11) -184 (-7) -55 (-2) -5 (0) +10 (+0) +22 (+1) 0 (0) -6 (0) -74 (-3) -188 (-7) -307 (-12) -1319 (-52)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -18 ( -58) -14 ( -50) -14 ( -45) -7 ( -23) -5 ( -16) -4 ( -13) -2 ( -6) -6 ( -19) -4 ( -13) -6 ( -19) -14 ( -47) -19 ( -61)   -113 ( -31)
daylight iconAverage Daylight Hours & Minutes/ Day -0h 09' -0h 06' -0h 01' +0h 04' +0h 08' +0h 10' +0h 09' +0h 06' +0h 00' -0h 04' -0h 08' -0h 10'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -1.9 +2.5 +2.8 +2.9 +2.9 +2.9 +2.9 +2.9 +2.9 +2.5 -1.8 -2.8   +1.6
relative humidity iconRelative Humidity (%) -19 -16 -19 -15 -6 -7 -4 +0 +2 +1 -3 -16   -8.5
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -0.8 (-1) -0.3 (-1) -0.3 (-1) +1.3 (+2) +3.8 (+7) +4.8 (+9) +4.9 (+9) +5.3 (+10) +3.9 (+7) +1.7 (+3) +0.7 (+1) -1.7 (-3) +1.9 (+3)

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