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Jamestown vs Douglas, Isle Of Man Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Douglas, Isle Of Man, Uk is approximately 7,794 km or 4,843 mi.
  • To reach Jamestown in this distance one would set out from Douglas, Isle Of Man bearing 181.3° or S and follow the great circles arc to approach Jamestown bearing 180.8° or S .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Douglas, Isle Of Man has a marine west coast climate (Cfb).
  • The mean annual temperature is 12.3 °C (22.2°F) warmer.
  • Average monthly temperatures vary by 6.5 °C (11.7°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to barely hyperoceanic.
  • Total annual precipitation averages 1002 mm (39.4 in) less which is equivalent to 1002 l/m² (24.59 US gal/ft²) or 10,020,000 l/ha (1,071,205 US gal/ac) less. About 1/8 as much.
  • The altitude of the sun at midday is overall 34.6° higher in Jamestown than in Douglas, Isle Of Man.
  • Relative humidity levels are 13% lower.
  • The mean dew point temperature is 9.3°C (16.8°F) higher.

Climate Comparison Table

The table shows values for Jamestown relative to Douglas, Isle Of Man. You can also view this comparison the other way around from the perspective of Douglas, Isle Of Man vs Jamestown.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +20 (+36) +20 (+36) +20 (+36) +16 (+29) +10 (+18) +7 (+13) +5 (+9) +4 (+7) +6 (+11) +10 (+18) +13 (+23) +16 (+29) +12 (+22)
average temperature iconAverage Temperature °C ( °F) +19 (+34) +20 (+35) +19 (+33) +16 (+29) +12 (+21) +8 (+14) +6 (+10) +5 (+9) +7 (+12) +10 (+17) +13 (+23) +16 (+29) +12 (+22)
minimum temperature iconAverage Min Temperature °C ( °F) +18 (+32) +19 (+34) +19 (+34) +16 (+29) +12 (+22) +8 (+14) +5 (+9) +5 (+9) +6 (+11) +10 (+18) +12 (+22) +15 (+27) +12 (+22)
rainfall iconAverage Precipitation mm (in) -117 (-5) -71 (-3) -52 (-2) -53 (-2) -51 (-2) -54 (-2) -48 (-2) -81 (-3) -106 (-4) -120 (-5) -124 (-5) -125 (-5) -1002 (-39)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -16 ( -52) -12 ( -42) -10 ( -32) -11 ( -37) -10 ( -32) -8 ( -27) -7 ( -23) -12 ( -39) -14 ( -47) -17 ( -55) -19 ( -63) -20 ( -65)   -156 ( -43)
daylight iconAverage Daylight Hours & Minutes/ Day +5h 05' +3h 06' +0h 33' -2h 08' -4h 29' -5h 44' -5h 10' -3h 06' -0h 29' +2h 12' +4h 32' +5h 44'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +69.2 +58.3 +37.5 +14.4 -2.2 -8.6 -2.6 +14.1 +36.9 +58.6 +68.8 +70   +34.6
relative humidity iconRelative Humidity (%) -23 -20 -19 -14 -5 -8 -9 -7 -8 -11 -12 -20   -13
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +13.6 (+24) +14.8 (+27) +14 (+25) +12.4 (+22) +10.1 (+18) +6.2 (+11) +3.6 (+6) +3.5 (+6) +4.7 (+8) +7.1 (+13) +10.3 (+19) +11.4 (+21) +9.3 (+17)

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Jamestown vs Douglas, Isle Of Man Discussion

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