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Vs > Jamestown
Mauritania flag

Atar vs Jamestown Climate & Distance Between

Saint Helena flag
  • The distance between Atar, Mauritania and Jamestown, Saint Helena is approximately 4,130 km or 2,566 mi.
  • To reach Atar in this distance one would set out from Jamestown bearing 348.6° or NNW and follow the great circles arc to approach Atar bearing 348.2° or NNW .
  • Both have a subtropical hot desert climate (BWh).
  • The annual mean temperature is 6.2 °C (11.1°F) warmer.
  • Average monthly temperatures vary by 10.5 °C (18.9°F) more in Atar. The continentality subtype is truly oceanic as opposed to truly hyperoceanic.
  • Total annual precipitation averages 17 mm (0.7 in) less which is equivalent to 17 l/m² (0.42 US gal/ft²) or 170,000 l/ha (18,174 US gal/ac) less. About 7/8 as much.
  • The altitude of the sun at midday is overall 1.8° lower in Atar than in Jamestown.
  • Relative humidity levels are 42% lower.
  • The mean dew point temperature is 8.6°C (15.4°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) 1 (+2) 3 (+5) +5 (+9) +8 (+14) +15 (+27) +19 (+34) +20 (+36) +19 (+34) +18 (+32) +14 (+25) +10 (+18) 3 (+5) +11 (+20)
average temperature iconAverage Temperature °C ( °F) -4 (-6) -2 (-4) +1 (+1) +3 (+5) +9 (+16) +13 (+23) +15 (+26) +14 (+25) +13 (+23) +10 (+18) +5 (+8) -2 (-4) +6 (+11)
minimum temperature iconAverage Min Temperature °C ( °F) -8 (-14) -7 (-13) -6 (-11) -2 (-4) +4 (+7) +8 (+14) +10 (+18) +10 (+18) +9 (+16) +5 (+9) 0 (0) -6 (-11) +1 (+3)
rainfall iconAverage Precipitation mm (in) -4 (0) -6 (0) -19 (-1) -10 (0) -18 (-1) -16 (-1) -25 (-1) +21 (+1) +31 (+1) +18 (+1) +7 (+0) +3 (+0) -17 (-1)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -3 ( -10) -3 ( -11) -4.5 ( -15) -2.5 ( -8) -3.5 ( -11) -5 ( -17) -6 ( -19) +2 (+6) +3 (+10) +1 (+3) +1 (+3) +1 (+3)   -19.5 ( -5)
daylight iconAverage Daylight Hours & Minutes/ Day -1h 55' -1h 12' -0h 13' +0h 50' +1h 42' +2h 09' +1h 57' +1h 12' +0h 11' -0h 51' -1h 44' -2h 09'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -35.6 -24.8 -4 +19.2 +35.3 +36.4 +34.9 +19.5 -3.4 -25.1 -35.3 -36.4   -1.8
relative humidity iconRelative Humidity (%) -31 -37 -37 -41 -51 -51 -44 -42 -44 -45 -48 -33   -42
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -13.2 (-24) -14.3 (-26) -12.5 (-23) -12.3 (-22) -10.6 (-19) -7.2 (-13) -0.8 (-1) +0.3 (+1) -1.8 (-3) -5.8 (-10) -12.3 (-22) -12.3 (-22) -8.6 (-15)

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Atar vs Jamestown Discussion

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