Saint Helier, Saint Helier, Jersey Climate

Weather: 9.11°C/48.4°F, Wind SW at 2.57 km/h, 37% Humidity, 0% Chance of rain

Jersey
(Photo by Jacob Dyer on Unsplash)
Contents

Saint Helier Climate Summary

Located at an elevation of 15.46 meters (50.72 feet) above sea level, Saint Helier has a Marine west coast, warm summer climate (Classification: Cfb). The district’s yearly temperature is 12.58ºC (54.64ºF) and it is 0.11% higher than Jersey’s averages. Saint Helier typically receives about 104.78 millimeters (4.13 inches) of precipitation and has 177.28 rainy days (48.57% of the time) annually.

CountryJersey
CitySaint Helier
Longitude-2.103233
Latitude49.1805019
Attitude/Elevation15.46m (50.72ft)
Local timeThursday 08:33
Annual high temperature13.39ºC (56.1ºF)
Annual low temperature11.39ºC (52.5ºF)
Average annual precip.104.78mm (4.13in)
Warmest monthAugust (18.02ºC / 64.44ºF)
Coldest MonthFebruary (6.99ºC / 44.58ºF)
Wettest MonthDecember (163.67mm / 6.44in)
Driest MonthApril (64.68mm / 2.55in)
Number of days with rainfall (≥ 1.0 mm)177.28 days (48.57%)
Days with no rain187.72 days (51.43%)
Humidity79.92%

Climate Saint Helier: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)14.06(57.31)15.07(59.13)15.07(59.13)18.08(64.54)20.09(68.16)24.11(75.4)24.11(75.4)24.11(75.4)23.11(73.6)21.1(69.98)18.08(64.54)15.07(59.13)24.11(75.4)
Average high °C (°F)9.52(49.14)8.98(48.16)9.81(49.66)11.3(52.34)13.11(55.6)15.53(59.95)17.48(63.46)18.02(64.44)17.56(63.61)15.62(60.12)12.81(55.06)10.99(51.78)13.39(56.1)
Daily mean °C (°F)8.75(47.75)8.12(46.62)8.9(48.02)10.45(50.81)12.3(54.14)14.74(58.53)16.76(62.17)17.32(63.18)16.64(61.95)14.7(58.46)11.99(53.58)10.25(50.45)12.58(54.64)
Average low °C (°F)7.33(45.19)6.99(44.58)7.76(45.97)9.31(48.76)11.22(52.2)13.48(56.26)15.63(60.13)16.28(61.3)15.52(59.94)13.52(56.34)10.7(51.26)8.96(48.13)11.39(52.5)
Record low °C (°F)-2.01(28.38)-2.01(28.38)-2.01(28.38)-1.0(30.2)2.01(35.62)2.01(35.62)5.02(41.04)6.03(42.85)4.02(39.24)2.01(35.62)1.0(33.8)-3.01(26.58)-3.01(26.58)
Average precipitation mm (inches)133.54(5.26)120.07(4.73)84.7(3.33)64.68(2.55)68.49(2.7)71.41(2.81)67.46(2.66)105.73(4.16)85.74(3.38)139.77(5.5)152.05(5.99)163.67(6.44)104.78(4.13)
Average precipitation days (≥ 1.0 mm)18.9118.0814.5210.9610.611.610.612.9711.7818.1719.6419.4514.78
Average relative humidity (%)78.9178.3579.879.5781.7783.982.9881.1978.4778.3177.9277.979.93
Mean monthly sunshine hours5.776.349.3412.7413.3213.3513.4613.0211.266.946.095.79.77

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Saint Helier in recent years.

Saint Helier

Saint Helier Temperature by Month

August
17.32°C | 63.18°F
July
16.76°C | 62.17°F
September
16.64°C | 61.95°F
June
14.74°C | 58.53°F
October
14.7°C | 58.46°F
May
12.3°C | 54.14°F
November
11.99°C | 53.58°F
April
10.45°C | 50.81°F
December
10.25°C | 50.45°F
March
8.9°C | 48.02°F
January
8.75°C | 47.75°F
February
8.12°C | 46.62°F

Historical Data

Summary
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature24.11°C (75.4°F)18.41°C (65.14°F)15.07°C (59.13°F)
Avg Temperature21.1°C (69.98°F)17.47°C (63.45°F)14.06°C (57.31°F)
Min Temperature19.09°C (66.36°F)13.0°C (55.4°F)6.03°C (42.85°F)
Dew PointMaxAverageMin
Dew Point18.08°C (64.54°F)14.42°C (57.96°F)9.04°C (48.27°F)
PrecipitationMaxAverageMinSum
Precipitation19.39mm | 0.76in2.57mm | 0.1in0.0mm | 0in79.54mm | 3.13in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind44.2kmh | 27.46mph22.88kmh | 14.22mph6.03kmh | 3.75mph
Gust Wind66.3kmh | 41.2mph35.48kmh | 22.05mph9.04kmh | 5.62mph
Sea Level PressureMaxAverageMin
Sea Level Pressure19.39mb2.57mb0.0mb
Saint Helier

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
August° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-08-0117.08 | 62.7415.07 | 59.138626.12 | 16.2330.17 | 1021.680.0 | 0
2020-08-0216.07 | 60.9312.06 | 53.717623.11 | 14.3630.26 | 1024.690.1 | 0.0
2020-08-0315.07 | 59.1312.06 | 53.717721.1 | 13.1130.2 | 1022.680.7 | 0.03
2020-08-0415.07 | 59.1311.05 | 51.897114.06 | 8.7430.2 | 1022.680.0 | 0
2020-08-0517.08 | 62.7413.06 | 55.517313.06 | 8.1230.11 | 1019.670.0 | 0
2020-08-0619.09 | 66.3615.07 | 59.137912.06 | 7.4930.14 | 1020.670.0 | 0
2020-08-0721.1 | 69.9816.07 | 60.936915.07 | 9.3630.14 | 1020.670.0 | 0
2020-08-0821.1 | 69.9816.07 | 60.937614.06 | 8.7430.14 | 1020.670.0 | 0
2020-08-0917.08 | 62.7416.07 | 60.938918.08 | 11.2330.14 | 1020.670.0 | 0
2020-08-1019.09 | 66.3617.08 | 62.749117.08 | 10.6130.05 | 1017.662.61 | 0.1
2020-08-1120.09 | 68.1617.08 | 62.748612.06 | 7.4930.05 | 1017.662.01 | 0.08
2020-08-1219.09 | 66.3618.08 | 64.54887.03 | 4.3730.02 | 1016.665.42 | 0.21
2020-08-1319.09 | 66.3617.08 | 62.749116.07 | 9.9929.99 | 1015.652.51 | 0.1
2020-08-1418.08 | 64.5417.08 | 62.749125.11 | 15.630.08 | 1018.660.4 | 0.02
2020-08-1518.08 | 64.5415.07 | 59.138014.06 | 8.7430.08 | 1018.660.0 | 0
2020-08-1617.08 | 62.7415.07 | 59.138610.05 | 6.2429.96 | 1014.6519.39 | 0.76
2020-08-1718.08 | 64.5415.07 | 59.138326.12 | 16.2329.93 | 1013.643.72 | 0.15
2020-08-1818.08 | 64.5415.07 | 59.138318.08 | 11.2329.99 | 1015.650.0 | 0
2020-08-1919.09 | 66.3617.08 | 62.749034.16 | 21.2329.75 | 1007.6115.57 | 0.61
2020-08-2018.08 | 64.5415.07 | 59.137930.14 | 18.7329.75 | 1007.610.0 | 0
2020-08-2119.09 | 66.3615.07 | 59.137840.18 | 24.9729.9 | 1012.641.81 | 0.07
2020-08-2218.08 | 64.5414.06 | 57.317940.18 | 24.9730.14 | 1020.670.1 | 0.0
2020-08-2317.08 | 62.7413.06 | 55.517531.14 | 19.3530.26 | 1024.690.3 | 0.01
2020-08-2417.08 | 62.7414.06 | 57.318323.11 | 14.3630.17 | 1021.680.5 | 0.02
2020-08-2518.08 | 64.5415.07 | 59.138144.2 | 27.4629.93 | 1013.642.01 | 0.08
2020-08-2616.07 | 60.9313.06 | 55.517533.15 | 20.630.17 | 1021.680.2 | 0.01
2020-08-2715.07 | 59.1313.06 | 55.517922.1 | 13.7330.08 | 1018.665.32 | 0.21
2020-08-2816.07 | 60.9313.06 | 55.517838.17 | 23.7229.78 | 1008.627.13 | 0.28
2020-08-2914.06 | 57.3111.05 | 51.897737.17 | 23.129.96 | 1014.658.84 | 0.35
2020-08-3014.06 | 57.3111.05 | 51.897627.12 | 16.8530.17 | 1021.680.5 | 0.02
2020-08-3114.06 | 57.319.04 | 48.27666.03 | 3.7530.29 | 1025.70.4 | 0.02

Saint Helier 11 Year Historical Weather Data

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