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Jamestown vs Irai Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Irai, Brazil is approximately 5,040 km or 3,132 mi.
  • To reach Jamestown in this distance one would set out from Irai bearing 85.7° or E and follow the great circles arc to approach Jamestown bearing 67.3° or ENE .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Irai has a humid subtropical climate (Cfa).
  • The mean annual temperature is 2.4 °C (4.4°F) warmer.
  • Average monthly temperatures vary by 7.4 °C (13.3°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to truly oceanic.
  • Total annual precipitation averages 1673 mm (65.9 in) less which is equivalent to 1673 l/m² (41.06 US gal/ft²) or 16,730,000 l/ha (1,788,548 US gal/ac) less. About 0 as much.
  • The altitude of the sun at midday is overall 8.5° higher in Jamestown than in Irai.
  • Relative humidity levels are 8.2% lower.
  • The mean dew point temperature is 0.6°C (1°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -5 (-10) -5 (-9) +-3 (-5) +0 (0) +0 (+1) +2 (+3) +0 (+1) +-2 (-3) +-3 (-5) -5 (-8) -7 (-12) -7 (-13) +-3 (-5)
average temperature iconAverage Temperature °C ( °F) -1 (-1) -1 (-1) +1 (+1) +5 (+8) +7 (+12) +8 (+14) +7 (+12) +4 (+7) +3 (+5) 0 (0) -1 (-2) -2 (-3) +2 (+4)
minimum temperature iconAverage Min Temperature °C ( °F) +2 (+3) +2 (+3) +4 (+8) +7 (+13) +8 (+14) +9 (+16) +8 (+14) +7 (+12) +5 (+9) +4 (+6) +2 (+3) +1 (+2) +5 (+8)
rainfall iconAverage Precipitation mm (in) -147 (-6) -149 (-6) -110 (-4) -135 (-5) -144 (-6) -131 (-5) -89 (-3) -138 (-5) -155 (-6) -173 (-7) -162 (-6) -141 (-6) -1673 (-66)
daylight iconAverage Daylight Hours & Minutes/ Day -0h 40' -0h 25' -0h 04' +0h 17' +0h 35' +0h 45' +0h 41' +0h 25' +0h 03' -0h 17' -0h 36' -0h 45'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +3 +10.7 +11.3 +11.3 +11.3 +11.3 +11.2 +11.2 +11.2 +10.4 +2.6 -3.7   +8.5
relative humidity iconRelative Humidity (%) -11 -12 -15 -15 -12 -13 -8 -3 -2 -1 -1 -6   -8.3
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -3.3 (-6) -3.3 (-6) -2.6 (-5) +1.1 (+2) +4.1 (+7) +5 (+9) +4.8 (+9) +3.3 (+6) +2.1 (+4) -0.4 (-1) -1.2 (-2) -3 (-5) +0.6 (+1)

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Jamestown vs Irai Discussion

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