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Jamestown vs Honolulu, Oahu Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Honolulu, Oahu, Hawaii is approximately 17,030 km or 10,583 mi.
  • To reach Jamestown in this distance one would set out from Honolulu, Oahu bearing 83.1° or E and follow the great circles arc to approach Jamestown bearing 106° or ESE .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Honolulu, Oahu has a tropical wet and dry/ savanna climate with dry summers (As).
  • The annual average temperature is 3.3 °C (5.9°F) cooler.
  • Average monthly temperatures vary by 0.7 °C (1.3°F) less in Jamestown. The continentality subtype is truly hyperoceanic for both.
  • Total annual precipitation averages 422.3 mm (16.6 in) less which is equivalent to 422.3 l/m² (10.36 US gal/ft²) or 4,223,000 l/ha (451,467 US gal/ac) less. About 1/4 as much.
  • The altitude of the sun at midday is overall 2.3° higher in Jamestown than in Honolulu, Oahu.
  • Relative humidity levels are 9.6% higher.
  • The mean dew point temperature is 0.8°C (1.5°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +0 (+1) +0 (+0) +0 (+1) -1 (-2) -5 (-10) -7 (-13) -9 (-16) -10 (-17) -9 (-17) -8 (-14) -6 (-11) -3 (-6) -5 (-9)
average temperature iconAverage Temperature °C ( °F) +1 (+2) +1 (+2) +0 (+1) 0 (-1) -3 (-6) -5 (-10) -7 (-12) -7 (-13) -7 (-13) -6 (-12) -4 (-7) -1 (-3) -3 (-6)
minimum temperature iconAverage Min Temperature °C ( °F) +2 (+4) +2 (+4) +2 (+4) +1 (+1) -2 (-4) -4 (-8) -6 (-11) -6 (-12) -6 (-11) -4 (-8) -3 (-6) 0 (-1) -2 (-4)
rainfall iconAverage Precipitation mm (in) -82 (-3) -46 (-2) -36 (-1) -29 (-1) -11 (0) +5 (+0) +18 (+1) -1 (0) -15 (-1) -56 (-2) -76 (-3) -94 (-4) -422 (-17)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -7 ( -23) -8 ( -28) -6 ( -19) -7 ( -23) -5 ( -16) -3 ( -10) -3 ( -10) -8 ( -26) -7 ( -23) -10 ( -32) -10 ( -33) -11 ( -35)   -85 ( -23)
daylight iconAverage Daylight Hours & Minutes/ Day +1h 58' +1h 14' +0h 13' -0h 51' -1h 45' -2h 12' -2h 00' -1h 14' -0h 11' +0h 53' +1h 46' +2h 12'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +36.4 +25.4 +4.6 -18.5 -34.8 -37.2 -34.6 -18.5 +4.4 +26.1 +36.2 +37.3   +2.3
relative humidity iconRelative Humidity (%) -1 +3 +4 +6 +14 +14 +16 +17 +18 +12 +10 +2   +9.6
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +1 (+2) +1.9 (+3) +1.4 (+3) +1.2 (+2) +0.3 (+1) -1.6 (-3) -2.7 (-5) -3.1 (-6) -2.5 (-5) -3.2 (-6) -1.5 (-3) -0.9 (-2) -0.8 (-1)

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Jamestown vs Honolulu, Oahu Discussion

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