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Vs > Nema
Saint Helena flag

Jamestown vs Nema Climate & Distance Between

Mauritania flag
  • The distance between Jamestown, Saint Helena and Nema, Mauritania is approximately 3,622 km or 2,251 mi.
  • To reach Jamestown in this distance one would set out from Nema bearing 177.2° or S and follow the great circles arc to approach Jamestown bearing 177.2° or S .
  • Both have a subtropical hot desert climate (BWh).
  • The mean annual temperature is 8.5 °C (15.3°F) cooler.
  • Average monthly temperatures vary by 7.5 °C (13.5°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to truly oceanic.
  • Total annual precipitation averages 180 mm (7.1 in) less which is equivalent to 180 l/m² (4.42 US gal/ft²) or 1,800,000 l/ha (192,432 US gal/ac) less. About 3/7 as much.
  • The altitude of the sun at midday is overall 0.5° lower in Jamestown than in Nema.
  • Relative humidity levels are 43.8% higher.
  • The mean dew point temperature is 9°C (16.1°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -4 (-7) -8 (-14) -9 (-16) -13 (-23) -18 (-32) -19 (-34) -16 (-29) -14 (-25) -15 (-27) -16 (-29) -13 (-23) -7 (-13) -13 (-23)
average temperature iconAverage Temperature °C ( °F) 0 (0) -4 (-6) -6 (-11) -9 (-16) -14 (-24) -14 (-25) -12 (-21) -10 (-18) -11 (-20) -13 (-23) -9 (-15) -3 (-5) -9 (-15)
minimum temperature iconAverage Min Temperature °C ( °F) +4 (+7) +1 (+2) -1 (-2) -5 (-9) -10 (-18) -10 (-18) -8 (-14) -7 (-13) -8 (-14) -8 (-14) -5 (-9) +1 (+2) -5 (-8)
rainfall iconAverage Precipitation mm (in) +5 (+0) +10 (+0) +20 (+1) +5 (+0) +12 (+0) -14 (-1) -47 (-2) -102 (-4) -56 (-2) -12 (0) -1 (0) +1 (+0) -180 (-7)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +3.5 (+11) +3.5 (+12) +4.5 (+15) +2 (+7) +2 (+6) +1 (+3) -1 ( -3) -8 ( -26) -6 ( -20) -1 ( -3) -0.5 ( -2) 0 ( 0)   0 ( 0)
daylight iconAverage Daylight Hours & Minutes/ Day +1h 42' +1h 04' +0h 11' -0h 44' -1h 30' -1h 54' -1h 43' -1h 04' -0h 10' +0h 45' +1h 32' +1h 54'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +31.8 +20.9 +0.1 -23.1 -32.4 -32.5 -32.3 -23.4 -0.5 +21.2 +31.4 +32.5   -0.5
relative humidity iconRelative Humidity (%) +46 +50 +51 +52 +55 +44 +29 +20 +30 +49 +54 +45   +43.8
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +18.7 (+34) +18.3 (+33) +18 (+32) +16.1 (+29) +10 (+18) +2 (+4) -2.9 (-5) -4.7 (-8) -2.3 (-4) +6.1 (+11) +13.1 (+24) +15 (+27) +9 (+16)

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Jamestown vs Nema Discussion

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