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Vs > Seattle, Washington
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Helsinki vs Seattle, Washington Climate & Distance Between

Usa flag
  • The distance between Helsinki, Finland and Seattle, Washington, Usa is approximately 7,665 km or 4,763 mi.
  • To reach Helsinki in this distance one would set out from Seattle, Washington bearing 16.9° or NNE and follow the great circles arc to approach Helsinki bearing 156.8° or SSE .
  • Helsinki has a warm summer continental/ hemiboreal climate with no dry season (Dfb) whereas Seattle, Washington has a Mediterranean warm climate (Csb).
  • Helsinki is in or near the boreal wet forest biome whereas Seattle, Washington is in or near the cool temperate wet forest biome.
  • The average annual temperature is 6.7 °C (12°F) cooler.
  • Average monthly temperatures vary by 10.5 °C (18.9°F) more in Helsinki. The continentality subtype is subcontinental as opposed to truly oceanic.
  • Total annual precipitation averages 277.4 mm (10.9 in) less which is equivalent to 277.4 l/m² (6.81 US gal/ft²) or 2,774,000 l/ha (296,559 US gal/ac) less. About 5/7 as much.
  • There are 242 fewer hours of sunlight per year in Helsinki. In whichever way circa 0h 39' less per day or about 7/8 as many.
  • The altitude of the sun at midday is overall 12.5° lower in Helsinki than in Seattle, Washington.
  • Relative humidity levels are 9.9% higher.
  • The mean dew point temperature is 4.5°C (8.2°F) lower.

Climate Comparison Table

The table shows values for Helsinki relative to Seattle, Washington. You can also view this comparison the other way around from the perspective of Seattle, Washington vs Helsinki.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
maximum temperature iconAverage Max Temperature °C ( °F) -11 (-19) -14 (-26) -12 (-22) -9 (-15) -4 (-7) -2 (-3) -1 (-3) -3 (-6) -5 (-10) -8 (-14) -8 (-14) -9 (-16) -7 (-13)
average temperature iconAverage Temperature °C ( °F) -11 (-20) -13 (-24) -12 (-21) -8 (-14) -4 (-8) -2 (-4) -1 (-2) -3 (-5) -5 (-8) -6 (-12) -7 (-12) -8 (-15) -7 (-12)
minimum temperature iconAverage Min Temperature °C ( °F) -11 (-21) -12 (-22) -11 (-20) -7 (-12) -5 (-9) -3 (-5) -1 (-1) -2 (-4) -4 (-6) -5 (-10) -6 (-11) -8 (-14) -6 (-11)
rainfall iconAverage Precipitation mm (in) -80 (-3) -60 (-2) -60 (-2) -20 (-1) -6 (0) +11 (+0) +46 (+2) +41 (+2) +22 (+1) -10 (0) -76 (-3) -86 (-3) -277 (-11)
rain days iconNumber of Precipitation Days (% chance of precip. on a day ) +1 (+3) +3 (+11) -2 ( -6) +1 (+3) +1 (+3) +4 (+13) +9 (+29) +10 (+32) +7 (+23) +4 (+13) +2 (+7) +1 (+3)   +41 (+11)
sunshine iconAverage Sunlight Hours/ Day -0h 54' -1h 20' -0h 54' -0h 44' +1h 05' +2h 02' -0h 38' -0h 00' -1h 28' -1h 56' -1h 50' -1h 21'   -0h 39'
daylight iconAverage Daylight Hours & Minutes/ Day -2h 17' -1h 16' -0h 13' +0h 51' +1h 56' +2h 41' +2h 19' +1h 16' +0h 11' -0h 53' -1h 58' -2h 41'   0h 00'
sun altitude iconSun altitude at solar noon on the 21st day (°) -12.6 -12.7 -12.7 -12.6 -12.6 -12.5 -12.4 -12.4 -12.4 -12.3 -12.4 -12.5   -12.5
relative humidity iconRelative Humidity (%) +11 +13 +9 +14 +4 +3 +9 +10 +15 +12 +9 +10   +9.9
dewpoint temperature iconAverage Dew Point Temperature °C & (°F) -9 (-16) -10.7 (-19) -9.2 (-17) -4.3 (-8) -3.2 (-6) -1.5 (-3) +1.2 (+2) -0.5 (-1) -1.4 (-3) -4.2 (-8) -5.2 (-9) -6.4 (-12) -4.5 (-8)

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Helsinki vs Seattle, Washington Discussion

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