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Jamestown vs Asmara Climate & Distance Between

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  • The distance between Jamestown, Saint Helena and Asmara, Eritrea is approximately 6,004 km or 3,731 mi.
  • To reach Jamestown in this distance one would set out from Asmara bearing 236.6° or WSW and follow the great circles arc to approach Jamestown bearing 236.9° or WSW .
  • Jamestown has a subtropical hot desert climate (BWh) whereas Asmara has a mid-latitude cool steppe climate (BSk).
  • The annual mean temperature is 6.2 °C (11.2°F) warmer.
  • Average monthly temperatures vary by 0.4 °C (0.7°F) less in Jamestown. The continentality subtype is truly hyperoceanic for both.
  • Total annual precipitation averages 381.6 mm (15 in) less which is equivalent to 381.6 l/m² (9.37 US gal/ft²) or 3,816,000 l/ha (407,956 US gal/ac) less. About 1/4 as much.
  • The altitude of the sun at midday is overall 1.1° lower in Jamestown than in Asmara.
  • Relative humidity levels are 11.4% higher.
  • The mean dew point temperature is 8.8°C (15.8°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +5 (+8) +3 (+6) +3 (+5) +2 (+3) +-1 (-2) +-2 (-3) +0 (+1) +1 (+1) +-1 (-2) +1 (+2) +2 (+3) +3 (+5) +1 (+2)
average temperature iconAverage Temperature °C ( °F) +10 (+18) +9 (+16) +8 (+14) +7 (+13) +4 (+8) +3 (+6) +4 (+7) +4 (+7) +4 (+8) +5 (+9) +7 (+13) +9 (+16) +6 (+11)
minimum temperature iconAverage Min Temperature °C ( °F) +17 (+30) +16 (+29) +15 (+26) +12 (+22) +9 (+16) +8 (+14) +6 (+11) +6 (+11) +8 (+15) +10 (+18) +11 (+21) +14 (+26) +11 (+20)
rainfall iconAverage Precipitation mm (in) +4 (+0) +8 (+0) +5 (+0) -23 (-1) -23 (-1) -21 (-1) -142 (-6) -146 (-6) -11 (0) -13 (-1) -20 (-1) 0 (0) -382 (-15)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +4 (+13) +4 (+14) +1 (+3) -3 ( -10) -4 ( -13) 0 ( 0) -12 ( -39) -15 ( -48) -3 ( -10) -1 ( -3) -2 ( -7) 0 ( 0)   -31 ( -8)
daylight iconAverage Daylight Hours & Minutes/ Day +1h 37' +1h 01' +0h 11' -0h 42' -1h 26' -1h 49' -1h 39' -1h 01' -0h 09' +0h 43' +1h 28' +1h 49'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +30.5 +19.6 -1.2 -24.4 -31.1 -31.1 -31 -24.7 -1.9 +19.9 +30.1 +31.2   -1.1
relative humidity iconRelative Humidity (%) +9 +17 +18 +16 +24 +24 -2 -4 +16 +9 +6 +4   +11.4
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +11.8 (+21) +13 (+23) +12.1 (+22) +10.8 (+19) +10.2 (+18) +9.3 (+17) +3.1 (+6) +2.9 (+5) +7.7 (+14) +6.9 (+12) +8 (+14) +9.2 (+17) +8.8 (+16)

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Jamestown vs Asmara Discussion

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