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Niamey vs Helwan Climate & Distance Between

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  • The distance between Niamey, Niger and Helwan, Egypt is approximately 3,506 km or 2,179 mi.
  • To reach Niamey in this distance one would set out from Helwan bearing 245.1° or WSW and follow the great circles arc to approach Niamey bearing 234° or SW .
  • Niamey has a subtropical hot steppe climate (BSh) whereas Helwan has a subtropical hot desert climate (BWh).
  • Niamey is in or near the tropical very dry forest biome whereas Helwan is in or near the subtropical desert biome.
  • The annual mean temperature is 8 °C (14.4°F) warmer.
  • Average monthly temperatures vary by 5 °C (9°F) less in Niamey. The continentality subtype is barely hyperoceanic as opposed to truly oceanic.
  • Total annual precipitation averages 522.8 mm (20.6 in) more which is equivalent to 522.8 l/m² (12.83 US gal/ft²) or 5,228,000 l/ha (558,908 US gal/ac) more. About 30 as much.
  • The altitude of the sun at midday is overall 12.3° higher in Niamey than in Helwan.
  • Relative humidity levels are 21% lower.
  • The mean dew point temperature is 2.8°C (5.1°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
average temperature iconAverage Temperature °C ( °F) +11 (+20) +13 (+23) +14 (+25) +12 (+22) +9 (+17) +4 (+8) +1 (+2) +0 (+1) +3 (+6) +8 (+14) +9 (+16) +11 (+19) +8 (+14)
rainfall iconAverage Precipitation mm (in) -5 (0) -3 (0) +2 (+0) +5 (+0) +35 (+1) +69 (+3) +154 (+6) +171 (+7) +92 (+4) +10 (+0) -1 (0) -5 (0) +523 (+21)
daylight iconAverage Daylight Hours & Minutes/ Day +0h 59' +0h 36' +0h 06' -0h 25' -0h 52' -1h 06' -1h 00' -0h 36' -0h 05' +0h 26' +0h 53' +1h 06'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +16.4 +16.3 +16.3 +16.4 +2.9 -3.6 +2.4 +16.2 +16.2 +16.3 +16.3 +16.4   +12.3
relative humidity iconRelative Humidity (%) -50 -45 -43 -25 -6 -1 +4 +12 +4 -15 -41 -47   -21.1
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -12 (-22) -10.1 (-18) -10.1 (-18) -2.1 (-4) +5.8 (+10) +3.5 (+6) +2.3 (+4) +3.4 (+6) +4.1 (+7) +1.8 (+3) -9.8 (-18) -10.8 (-19) -2.8 (-5)

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Niamey vs Helwan Discussion

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