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Jamestown vs Sendai Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Sendai, Japan is approximately 15,919 km or 9,892 mi.
  • To reach Jamestown in this distance one would set out from Sendai bearing 298° or WNW and follow the great circles arc to approach Jamestown bearing 226.1° or SW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Sendai has a humid subtropical climate (Cfa).
  • The annual average temperature is 9.9 °C (17.9°F) warmer.
  • Average monthly temperatures vary by 19.1 °C (34.4°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to subcontinental.
  • Total annual precipitation averages 1067.4 mm (42 in) less which is equivalent to 1067.4 l/m² (26.2 US gal/ft²) or 10,674,000 l/ha (1,141,121 US gal/ac) less. About 1/9 as much.
  • The altitude of the sun at midday is overall 18.8° higher in Jamestown than in Sendai.
  • Relative humidity levels are 1.8% lower.
  • The mean dew point temperature is 8.9°C (16°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +22 (+40) +22 (+39) +19 (+35) +12 (+22) +4 (+8) +1 (+1) -4 (-6) -6 (-11) -2 (-4) +4 (+7) +10 (+17) +16 (+29) +8 (+15)
average temperature iconAverage Temperature °C ( °F) +23 (+41) +23 (+41) +20 (+36) +14 (+25) +7 (+13) +3 (+5) -2 (-4) -4 (-7) 0 (0) +6 (+10) +12 (+22) +18 (+32) +10 (+18)
minimum temperature iconAverage Min Temperature °C ( °F) +24 (+42) +23 (+42) +22 (+40) +16 (+28) +8 (+15) +3 (+5) -2 (-4) -4 (-7) +0 (+0) +8 (+14) +13 (+24) +19 (+34) +11 (+19)
rainfall iconAverage Precipitation mm (in) -33 (-1) -39 (-2) -48 (-2) -84 (-3) -91 (-4) -115 (-5) -118 (-5) -155 (-6) -182 (-7) -101 (-4) -69 (-3) -33 (-1) -1067 (-42)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -3 ( -10) -2 ( -7) -3 ( -10) -6 ( -20) -6 ( -19) -7 ( -23) -6 ( -19) -9 ( -29) -9 ( -30) -8 ( -26) -6 ( -20) -7 ( -23)   -72 ( -20)
daylight iconAverage Daylight Hours & Minutes/ Day +3h 10' +1h 58' +0h 21' -1h 21' -2h 48' -3h 32' -3h 13' -1h 58' -0h 18' +1h 24' +2h 50' +3h 32'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +53.4 +42.6 +21.8 -1.3 -18 -24.5 -18.6 -1.9 +20.9 +42.6 +52.9 +54.2   +18.8
relative humidity iconRelative Humidity (%) -3 +0 +2 +0 +2 -8 -10 -5 -4 +0 +5 -1   -1.8
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +20.6 (+37) +21 (+38) +18.9 (+34) +13.3 (+24) +7.2 (+13) +1 (+2) -4 (-7) -5 (-9) -0.9 (-2) +5.4 (+10) +12.7 (+23) +16.7 (+30) +8.9 (+16)

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