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Freetown vs Niigata Climate & Distance Between

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  • The distance between Freetown, Sierra Leone and Niigata, Japan is approximately 14,093 km or 8,758 mi.
  • To reach Freetown in this distance one would set out from Niigata bearing 324.9° or NW and follow the great circles arc to approach Freetown bearing 207.3° or SSW .
  • Freetown has a tropical monsoonal climate (Am) whereas Niigata has a humid subtropical climate (Cfa).
  • The mean temperature is 14.1 °C (25.5°F) warmer.
  • Average monthly temperatures vary by 21.5 °C (38.7°F) less in Freetown. The continentality subtype is extremely hyperoceanic as opposed to subcontinental.
  • Total annual precipitation averages 1166.9 mm (45.9 in) more which is equivalent to 1166.9 l/m² (28.64 US gal/ft²) or 11,669,000 l/ha (1,247,494 US gal/ac) more. About 1 2/3 as much.
  • There are 328 more hours of sunlight per year in Freetown. In whichever way circa 0h 55' more per day or about 1 1/6 as many.
  • The altitude of the sun at midday is overall 21.8° higher in Freetown than in Niigata.
  • Relative humidity levels are 7.5% higher.
  • The mean dew point temperature is 15.1°C (27.2°F) higher.

Climate Comparison Table

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) +25 (+45) +25 (+45) +22 (+40) +16 (+28) +10 (+19) +6 (+11) +1 (+1) -2 (-3) +4 (+6) +10 (+19) +16 (+30) +22 (+39) +13 (+23)
average temperature iconAverage Temperature °C ( °F) +25 (+45) +25 (+46) +23 (+42) +18 (+32) +12 (+22) +7 (+13) +2 (+4) 0 (-1) +5 (+9) +12 (+21) +18 (+32) +23 (+41) +14 (+25)
minimum temperature iconAverage Min Temperature °C ( °F) +24 (+44) +25 (+44) +23 (+41) +18 (+33) +12 (+22) +7 (+12) +2 (+3) +0 (+0) +5 (+9) +12 (+21) +18 (+32) +22 (+40) +14 (+25)
rainfall iconAverage Precipitation mm (in) -187 (-7) -126 (-5) -91 (-4) -45 (-2) +79 (+3) +206 (+8) +553 (+22) +657 (+26) +327 (+13) +107 (+4) -110 (-4) -203 (-8) +1167 (+46)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) -21 ( -68) -18 ( -64) -15 ( -48) -7 ( -23) +3 (+10) +9 (+30) +12 (+39) +13 (+42) +10 (+33) +5 (+16) -7 ( -23) -19 ( -61)   -35 ( -10)
sunshine iconAverage Sunlight Hours/ Day +5h 32' +4h 59' +3h 40' +0h 48' -0h 34' -1h 56' -3h 46' -5h 54' -1h 38' +1h 30' +3h 02' +5h 17'   +0h 55'
daylight iconAverage Daylight Hours & Minutes/ Day +1h 51' +1h 09' +0h 12' -0h 47' -1h 39' -2h 05' -1h 53' -1h 09' -0h 10' +0h 49' +1h 40' +2h 05'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) +29.3 +29.2 +29.3 +22.8 +6.2 -0.3 +5.6 +22.2 +29 +28.9 +29.1 +29.3   +21.8
relative humidity iconRelative Humidity (%) -2 -1 +3 +11 +11 +9 +10 +11 +14 +11 +9 +3   +7.4
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) +23.6 (+42) +24 (+43) +22.8 (+41) +19.3 (+35) +14.1 (+25) +8.9 (+16) +4 (+7) +2 (+4) +7.4 (+13) +13.5 (+24) +19 (+34) +22.5 (+41) +15.1 (+27)

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Freetown vs Niigata Discussion

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