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St. Mary’S, Isles Of Scilly Climate & Temperature

  • St. Mary’S, Isles Of Scilly, Uk is at 49°55'N, 6°18'W, 50 m (164 ft). See map.
  • St. Mary’S, Isles Of Scilly has a marine west coast climate that is mild with no dry season, warm summers. Heavy precipitation occurs during mild winters which are dominated by mid-latitude cyclones. Seasonality is moderate (Köppen-Geiger classification: Cfb).
  • The average temperature is 11.6 degrees Celsius (52.9 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph.
  • Average monthly temperatures vary by 9 °C (16.2°F). This indicates that the continentality type is hyperoceanic, subtype barely hyperoceanic. St. Mary’S, Isles Of Scilly Climate Graph
  • In the winter time records indicate temperatures by day reach 9.3°C (48.8°F) on average falling to 6.3°C (43.4°F) overnight.
  • In spring time temperatures climb reaching 12.3°C (54.2°F) generally in the afternoon with overnight lows of 7.7°C (45.8°F).
  • During summer average high temperatures are 18.3°C (65°F) and average low temperatures are 13°C (55.4°F).
  • Come autumn/ fall temperatures decrease achieving average highs of 15°C (59°F) during the day and lows of 11°C (51.8°F) generally shortly after sunrise.
  • Total annual Precipitation averages 844 mm (33.2 inches) which is equivalent to 844 Litres/m² (20.7 Gallons/ft²).
  • On average there are 1752 hours of sunshine per year. Visit the sunshine and daylight section to check monthly details including how high in the sky the sun reaches each month.
  • Were you to burrow down through the centre of the Earth from St. Mary"S, Isles Of Scilly you would pop up nearest to the climate station at Nugget Point, New Zealand (Cool temperate desert scrub biome).

St. Mary’S, Isles Of Scilly Climate Table

  Climate Variable Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
 
Average Max Temperature °C ( °F) 9 (48) 9 (48) 11 (52) 12 (54) 14 (57) 17 (63) 19 (66) 19 (66) 18 (64) 15 (59) 12 (54) 10 (50) 14 (57)
 
Average Temperature °C ( °F) 8 (46) 8 (46) 9 (48) 10 (49) 12 (53) 15 (58) 16 (61) 17 (62) 16 (60) 13 (55) 11 (51) 9 (47) 12 (53)
 
Average Min Temperature °C ( °F) 6 (43) 6 (43) 7 (45) 7 (45) 9 (48) 12 (54) 13 (55) 14 (57) 13 (55) 11 (52) 9 (48) 7 (45) 10 (49)
 
Average Precipitation mm (in) 91 (4) 71 (3) 69 (3) 46 (2) 56 (2) 49 (2) 61 (2) 64 (3) 67 (3) 80 (3) 96 (4) 94 (4) 844 (33)
Number of Wet Days (probability of rain on a day %) 22 (71) 17 (60) 16 (52) 13 (43) 14 (45) 14 (47) 16 (52) 15 (48) 16 (53) 17 (55) 19 (63) 21 (68) 200 (55)
Average Sunlight Hours/ Day 2h 00' 2h 52' 4h 11' 6h 24' 7h 34' 7h 36' 6h 40' 6h 42' 5h 10' 3h 54' 2h 32' 1h 50' 4h 47'
Average Daylight Hours/ Day 8h 36' 10h 00' 11h 48' 13h 43' 15h 23' 16h 15' 15h 52' 14h 25' 12h 33' 10h 38' 8h 59' 8h 09' 12h 00'
Percentage of Sunny (Cloudy) Daylight Hours 24 (76) 29 (71) 36 (64) 47 (53) 50 (50) 47 (53) 43 (57) 47 (53) 42 (58) 37 (63) 29 (71) 23 (77) 40 (60)
Sun altitude at solar noon on the 21st day (°). 20.2 29.5 40.4 52 60.3 63.5 60.5 52.1 40.7 29.2 20.1 16.7 40.4

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