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Jamestown vs Vallenar Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Vallenar, Chile is approximately 6,709 km or 4,169 mi.
  • To reach Jamestown in this distance one would set out from Vallenar bearing 92.6° or E and follow the great circles arc to approach Jamestown bearing 65.3° or ENE .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Vallenar has a mid-latitude cool desert climate (BWk).
  • The average temperature is 6.9 °C (12.5°F) warmer.
  • Average monthly temperatures vary by 3.2 °C (5.8°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to barely hyperoceanic.
  • Total annual precipitation averages 105.4 mm (4.1 in) more which is equivalent to 105.4 l/m² (2.59 US gal/ft²) or 1,054,000 l/ha (112,680 US gal/ac) more. About 4 1/3 as much.
  • The altitude of the sun at midday is overall 10.2° higher in Jamestown than in Vallenar.
  • Relative humidity levels are 0.5% lower.
  • The mean dew point temperature is 6.5°C (11.7°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
average temperature iconAverage Temperature °C ( °F) +5 (+10) +5 (+10) +7 (+12) +9 (+16) +9 (+16) +9 (+17) +9 (+15) +8 (+14) +7 (+13) +6 (+10) +5 (+10) +5 (+8) +7 (+13)
rainfall iconAverage Precipitation mm (in) +8 (+0) +10 (+0) +19 (+1) +9 (+0) +14 (+1) +15 (+1) +21 (+1) +3 (+0) +3 (+0) +1 (+0) +0 (+0) +3 (+0) +105 (+4)
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 42' -0h 53'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +4.7 +12.4 +13.1 +13.2 +13.1 +13.1 +13 +12.9 +13 +12.1 +4.2 -1.9   +10.2
relative humidity iconRelative Humidity (%) -5 -5 -9 -9 -1 +3 +5 +7 +6 +3 +2 -3   -0.5
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +3.9 (+7) +4 (+7) +4.6 (+8) +6.7 (+12) +8.3 (+15) +9.6 (+17) +9.3 (+17) +8.9 (+16) +7.9 (+14) +5.9 (+11) +5.6 (+10) +3.6 (+6) +6.5 (+12)

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Jamestown vs Vallenar Discussion

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