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Vs > San Juan
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Iriomotejima vs San Juan Climate & Distance Between

Puerto Rico   flag
  • The distance between Iriomotejima, Japan and San Juan, Puerto Rico is approximately 15,132 km or 9,403 mi.
  • To reach Iriomotejima in this distance one would set out from San Juan bearing 347.1° or NNW and follow the great circles arc to approach Iriomotejima bearing 193.4° or SSW .
  • Iriomotejima has a humid subtropical climate (Cfa) whereas San Juan has a tropical monsoonal climate (Am).
  • The annual average temperature is 2.3 °C (4.2°F) cooler.
  • Average monthly temperatures vary by 7.3 °C (13.1°F) more in Iriomotejima. The continentality subtype is barely hyperoceanic as opposed to truly hyperoceanic.
  • Total annual precipitation averages 714.7 mm (28.1 in) more which is equivalent to 714.7 l/m² (17.54 US gal/ft²) or 7,147,000 l/ha (764,062 US gal/ac) more. About 1 4/9 as much.
  • The altitude of the sun at midday is overall 4.5° lower in Iriomotejima than in San Juan.
  • Relative humidity levels are 6% higher.
  • The mean dew point temperature is 1°C (1.8°F) lower.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -7 (-12) -7 (-13) -5 (-10) -3 (-6) -2 (-3) +-1 (-2) +1 (+1) +0 (+0) -1 (-2) -3 (-6) -5 (-10) -6 (-11) -3 (-6)
average temperature iconAverage Temperature °C ( °F) -6 (-11) -5 (-10) -4 (-8) -2 (-4) -1 (-1) +0 (+0) +1 (+3) +1 (+2) 0 (0) -2 (-4) -4 (-7) -5 (-10) -2 (-4)
minimum temperature iconAverage Min Temperature °C ( °F) -5 (-9) -3 (-6) -3 (-5) -1 (-2) +1 (+1) +2 (+3) +3 (+5) +2 (+4) +1 (+2) -1 (-1) -2 (-4) -4 (-8) -1 (-2)
rainfall iconAverage Precipitation mm (in) +53 (+2) +90 (+4) +97 (+4) +70 (+3) +30 (+1) +52 (+2) +34 (+1) +63 (+2) +76 (+3) +75 (+3) +59 (+2) +15 (+1) +715 (+28)
daylight iconAverage Daylight Hours & Minutes/ Day -0h 21' -0h 13' -0h 02' +0h 09' +0h 19' +0h 23' +0h 21' +0h 13' +0h 02' -0h 09' -0h 19' -0h 23'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -6.1 -6.2 -6.2 -6.2 -2.4 +3.9 -1.7 -5.8 -5.7 -5.8 -5.8 -6   -4.5
relative humidity iconRelative Humidity (%) +3 +6 +9 +8 +9 +8 +7 +8 +7 +2 +2 +3   +6
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -5.1 (-9) -4 (-7) -2.3 (-4) -0.7 (-1) +1 (+2) +1.9 (+3) +2.8 (+5) +2.6 (+5) +1.5 (+3) -1.6 (-3) -3.4 (-6) -4.6 (-8) -1 (-2)

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Iriomotejima vs San Juan Discussion

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