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Niamey vs San Juan Climate & Distance Between

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  • The distance between Niamey, Niger and San Juan, Puerto Rico is approximately 7,268 km or 4,517 mi.
  • To reach Niamey in this distance one would set out from San Juan bearing 83.2° or E and follow the great circles arc to approach Niamey bearing 104.3° or ESE .
  • Niamey has a subtropical hot steppe climate (BSh) whereas San Juan has a tropical monsoonal climate (Am).
  • Niamey is in or near the tropical very dry forest biome whereas San Juan is in or near the subtropical moist forest biome.
  • The annual mean temperature is 3.7 °C (6.6°F) warmer.
  • Average monthly temperatures vary by 6.2 °C (11.2°F) more in Niamey. The continentality subtype is barely hyperoceanic as opposed to truly hyperoceanic.
  • Total annual precipitation averages 1087.2 mm (42.8 in) less which is equivalent to 1087.2 l/m² (26.68 US gal/ft²) or 10,872,000 l/ha (1,162,289 US gal/ac) less. About 1/3 as much.
  • There are 253 more hours of sunlight per year in Niamey. In whichever way circa 0h 42' more per day or about 1 as many.
  • The altitude of the sun at midday is overall 2.4° higher in Niamey than in San Juan.
  • Relative humidity levels are 44.2% lower.
  • The mean dew point temperature is 12.7°C (22.9°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +6 (+10) +8 (+14) +11 (+20) +12 (+21) +10 (+18) +6 (+11) +3 (+5) +2 (+4) +3 (+6) +7 (+12) +6 (+11) +5 (+10) +7 (+12)
average temperature iconAverage Temperature °C ( °F) +1 (+1) +4 (+7) +7 (+12) +9 (+16) +8 (+14) +5 (+8) +2 (+4) +1 (+2) +2 (+4) +4 (+7) +2 (+3) +1 (+1) +4 (+7)
minimum temperature iconAverage Min Temperature °C ( °F) -4 (-7) 0 (0) +3 (+5) +6 (+10) +6 (+10) +3 (+5) +1 (+2) +0 (+0) +1 (+1) +1 (+2) -3 (-5) -4 (-8) +1 (+1)
rainfall iconAverage Precipitation mm (in) -119 (-5) -71 (-3) -52 (-2) -88 (-3) -146 (-6) -75 (-3) -5 (0) -10 (0) -80 (-3) -138 (-5) -164 (-6) -138 (-5) -1087 (-43)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -17 ( -55) -13 ( -46) -10.5 ( -34) -13 ( -43) -15 ( -48) -12 ( -40) -12 ( -39) -6 ( -19) -11 ( -37) -15 ( -48) -18 ( -60) -19 ( -61)   -161.5 ( -44)
sunshine iconAverage Sunlight Hours/ Day +1h 38' +1h 39' -0h 15' -0h 10' +0h 21' +0h 50' -0h 42' -2h 00' +0h 30' +1h 40' +2h 30' +2h 23'   +0h 42'
daylight iconAverage Daylight Hours & Minutes/ Day +0h 16' +0h 10' +0h 01' -0h 07' -0h 14' -0h 18' -0h 16' -0h 10' -0h 01' +0h 07' +0h 14' +0h 18'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +4.9 +4.8 +4.8 +4.8 -4.8 -5 -4.6 +4.9 +5 +5 +5 +5   +2.4
relative humidity iconRelative Humidity (%) -63 -63 -62 -57 -42 -34 -22 -10 -18 -38 -61 -61   -44.3
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -24.9 (-45) -22.8 (-41) -21.5 (-39) -14.1 (-25) -5.3 (-10) -5 (-9) -3.5 (-6) -1.4 (-3) -2.3 (-4) -7.2 (-13) -21.3 (-38) -23.6 (-42) -12.7 (-23)

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Niamey vs San Juan Discussion

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