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Jamestown vs Sulina Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Sulina, Romania is approximately 7,676 km or 4,770 mi.
  • To reach Jamestown in this distance one would set out from Sulina bearing 216.7° or SW and follow the great circles arc to approach Jamestown bearing 206° or SSW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Sulina has a mid-latitude cool steppe climate (BSk).
  • The mean temperature is 10.4 °C (18.8°F) warmer.
  • Average monthly temperatures vary by 17.8 °C (32°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to subcontinental.
  • Total annual precipitation averages 144 mm (5.7 in) less which is equivalent to 144 l/m² (3.53 US gal/ft²) or 1,440,000 l/ha (153,946 US gal/ac) less. About 1/2 as much.
  • The altitude of the sun at midday is overall 25.6° higher in Jamestown than in Sulina.
  • Relative humidity levels are 8.7% lower.
  • The mean dew point temperature is 8.3°C (14.9°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +24 (+44) +24 (+43) +22 (+39) +15 (+27) +6 (+10) +0 (+0) -3 (-5) -3 (-5) +1 (+2) +7 (+13) +13 (+23) +19 (+33) +10 (+19)
average temperature iconAverage Temperature °C ( °F) +24 (+43) +23 (+42) +20 (+36) +14 (+26) +6 (+11) +1 (+2) -2 (-4) -2 (-3) +2 (+3) +7 (+12) +13 (+24) +19 (+34) +10 (+19)
minimum temperature iconAverage Min Temperature °C ( °F) +23 (+42) +22 (+40) +20 (+36) +13 (+23) +5 (+9) +0 (+0) -3 (-5) -2 (-4) +1 (+2) +7 (+13) +13 (+23) +18 (+33) +10 (+18)
rainfall iconAverage Precipitation mm (in) -11 (0) -12 (0) +5 (+0) -9 (0) -8 (0) -11 (0) +7 (+0) -18 (-1) -28 (-1) -14 (-1) -22 (-1) -23 (-1) -144 (-6)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -3 ( -10) -2 ( -7) -1 ( -3) -4 ( -13) -2 ( -6) -1 ( -3) +2 (+6) -1 ( -3) -2 ( -7) -4 ( -13) -6 ( -20) -6 ( -19)   -30 ( -8)
daylight iconAverage Daylight Hours & Minutes/ Day +3h 50' +2h 22' +0h 26' -1h 38' -3h 24' -4h 18' -3h 54' -2h 22' -0h 22' +1h 41' +3h 26' +4h 18'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +60.2 +49.3 +28.6 +5.4 -11.2 -17.6 -11.7 +5.1 +27.9 +49.6 +59.8 +61   +25.6
relative humidity iconRelative Humidity (%) -21 -17 -16 -12 -4 -1 +2 +2 -1 -7 -11 -19   -8.8
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +18.4 (+33) +18.7 (+34) +16 (+29) +11.1 (+20) +5.2 (+9) +0.7 (+1) -1.5 (-3) -1.5 (-3) +1.4 (+3) +5.3 (+10) +10.7 (+19) +14.5 (+26) +8.3 (+15)

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