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N’Djamena vs Jamestown Climate & Distance Between

Saint Helena flag
  • The distance between N’Djamena, Chad and Jamestown, Saint Helena is approximately 3,865 km or 2,402 mi.
  • To reach N’Djamena in this distance one would set out from Jamestown bearing 37.4° or NE and follow the great circles arc to approach N’Djamena bearing 36.7° or NE .
  • N’Djamena has a subtropical hot steppe climate (BSh) whereas Jamestown has a subtropical hot desert climate (BWh).
  • The mean annual temperature is 6.5 °C (11.6°F) warmer.
  • Average monthly temperatures vary by 5.6 °C (10.1°F) more in N’Djamena. The continentality subtype is barely hyperoceanic as opposed to truly hyperoceanic.
  • Total annual precipitation averages 372.8 mm (14.7 in) more which is equivalent to 372.8 l/m² (9.15 US gal/ft²) or 3,728,000 l/ha (398,548 US gal/ac) more. About 3 5/7 as much.
  • The altitude of the sun at midday is overall 2.4° higher in N’Djamena than in Jamestown.
  • Relative humidity levels are 26.2% lower.
  • The mean dew point temperature is 2.5°C (4.6°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) 5 (+10) +8 (+15) +11 (+19) +14 (+25) +16 (+29) +14 (+26) +12 (+21) +10 (+17) +12 (+21) +14 (+25) +13 (+23) +10 (+17) +11 (+21)
average temperature iconAverage Temperature °C ( °F) -1 (-1) +2 (+3) +6 (+11) +9 (+16) +11 (+20) +10 (+18) +8 (+15) +7 (+13) +8 (+15) +9 (+17) +6 (+10) +2 (+4) +6 (+12)
minimum temperature iconAverage Min Temperature °C ( °F) -7 (-12) -4 (-8) -1 (-2) +4 (+7) +7 (+12) +7 (+12) +6 (+11) +5 (+10) +6 (+10) +4 (+7) 0 (0) -4 (-8) +2 (+3)
rainfall iconAverage Precipitation mm (in) -8 (0) -10 (0) -20 (-1) +0 (+0) +8 (+0) +32 (+1) +111 (+4) +164 (+6) +79 (+3) +18 (+1) +0 (+0) -3 (0) +373 (+15)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -4 ( -13) -4 ( -14) -4.5 ( -15) -2 ( -7) 0 ( 0) +3 (+10) +7 (+23) +15 (+48) +9 (+30) +1 (+3) +0.5 (+2) -0.5 ( -2)   +20.5 (+6)
daylight iconAverage Daylight Hours & Minutes/ Day -1h 27' -0h 54' -0h 10' +0h 37' +1h 17' +1h 37' +1h 28' +0h 54' +0h 08' -0h 39' -1h 18' -1h 37'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -27.3 -16.5 +4.3 +27.4 +28 +28 +28 +27.2 +5 -16.8 -27 -28.1   +2.4
relative humidity iconRelative Humidity (%) -34 -42 -43 -37 -33 -20 -6 +0 -3 -23 -39 -34   -26.2
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -12.2 (-22) -13.8 (-25) -11.6 (-21) -5 (-9) +0.4 (+1) +4.1 (+7) +6.6 (+12) +6.8 (+12) +7.3 (+13) +2.7 (+5) -6.6 (-12) -9.1 (-16) -2.5 (-5)

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N’Djamena vs Jamestown Discussion

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