Saint Helier, Jersey Climate

Weather: 10.18°C/50.32°F, Wind SW at 2.57 km/h, 41% Humidity, 0% Chance of rain

Jersey
(Photo by JJ Shev 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 city’s yearly temperature is 12.52ºC (54.54ºF) and it is 0.05% higher than Jersey’s averages. Saint Helier typically receives about 104.3 millimeters (4.11 inches) of precipitation and has 176.47 rainy days (48.35% of the time) annually.

CountryJersey
Longitude-2.103233
Latitude49.1805019
Attitude/Elevation15.46m (50.72ft)
Local timeFriday 23:36
Annual high temperature13.33ºC (55.99ºF)
Annual low temperature11.34ºC (52.41ºF)
Average annual precip.104.3mm (4.11in)
Warmest monthAugust (17.94ºC / 64.29ºF)
Coldest MonthFebruary (6.96ºC / 44.53ºF)
Wettest MonthDecember (162.92mm / 6.41in)
Driest MonthApril (64.38mm / 2.53in)
Number of days with rainfall (≥ 1.0 mm)176.47 days (48.35%)
Days with no rain188.53 days (51.65%)
Humidity79.56%

Climate Saint Helier: Monthly Averages

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)14.0(57.2)15.0(59.0)15.0(59.0)18.0(64.4)20.0(68.0)24.0(75.2)24.0(75.2)24.0(75.2)23.0(73.4)21.0(69.8)18.0(64.4)15.0(59.0)24.0(75.2)
Average high °C (°F)9.48(49.06)8.94(48.09)9.77(49.59)11.25(52.25)13.05(55.49)15.46(59.83)17.4(63.32)17.94(64.29)17.48(63.46)15.55(59.99)12.75(54.95)10.94(51.69)13.33(55.99)
Daily mean °C (°F)8.71(47.68)8.08(46.54)8.86(47.95)10.4(50.72)12.24(54.03)14.67(58.41)16.68(62.02)17.24(63.03)16.56(61.81)14.63(58.33)11.94(53.49)10.2(50.36)12.52(54.54)
Average low °C (°F)7.3(45.14)6.96(44.53)7.72(45.9)9.27(48.69)11.17(52.11)13.42(56.16)15.56(60.01)16.21(61.18)15.45(59.81)13.46(56.23)10.65(51.17)8.92(48.06)11.34(52.41)
Record low °C (°F)-2.0(28.4)-2.0(28.4)-2.0(28.4)-1.0(30.2)2.0(35.6)2.0(35.6)5.0(41.0)6.0(42.8)4.0(39.2)2.0(35.6)1.0(33.8)-3.0(26.6)-3.0(26.6)
Average precipitation mm (inches)132.93(5.23)119.52(4.71)84.31(3.32)64.38(2.53)68.18(2.68)71.08(2.8)67.15(2.64)105.25(4.14)85.35(3.36)139.13(5.48)151.35(5.96)162.92(6.41)104.3(4.11)
Average precipitation days (≥ 1.0 mm)18.8218.014.4510.9110.5511.5510.5512.9111.7318.0919.5519.3614.71
Average relative humidity (%)78.5577.9979.4379.2181.483.5282.680.8278.1177.9577.5677.5479.56
Mean monthly sunshine hours5.746.319.312.6813.2613.2913.412.9611.216.916.065.679.73

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
17.24°C | 63.03°F
July
16.68°C | 62.02°F
September
16.56°C | 61.81°F
June
14.67°C | 58.41°F
October
14.63°C | 58.33°F
May
12.24°C | 54.03°F
November
11.94°C | 53.49°F
April
10.4°C | 50.72°F
December
10.2°C | 50.36°F
March
8.86°C | 47.95°F
January
8.71°C | 47.68°F
February
8.08°C | 46.54°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 Temperature15.0°C (59.0°F)11.14°C (52.05°F)6.0°C (42.8°F)
Avg Temperature13.0°C (55.4°F)9.82°C (49.68°F)5.0°C (41.0°F)
Min Temperature11.0°C (51.8°F)8.79°C (47.82°F)-0.0°C (0°F)
Dew PointMaxAverageMin
Dew Point10.0°C (50.0°F)6.39°C (43.5°F)1.0°C (33.8°F)
PrecipitationMaxAverageMinSum
Precipitation20.2mm | 0.8in2.88mm | 0.11in0.0mm | 0in80.6mm | 3.17in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind53.0kmh | 32.93mph28.29kmh | 17.58mph13.0kmh | 8.08mph
Gust Wind82.0kmh | 50.95mph41.0kmh | 25.48mph20.0kmh | 12.43mph
Sea Level PressureMaxAverageMin
Sea Level Pressure20.2mb2.88mb0.0mb
Saint Helier

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
February° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-02-017 | 44.64 | 39.27928 | 17.429.06 | 9846.9 | 0.27
2019-02-025 | 41.01 | 33.87146 | 28.5829.74 | 10072.2 | 0.09
2019-02-038 | 46.42 | 35.66523 | 14.2930.27 | 10250.6 | 0.02
2019-02-049 | 48.26 | 42.88345 | 27.9630.15 | 10216.2 | 0.24
2019-02-058 | 46.47 | 44.69231 | 19.2630.24 | 10240.2 | 0.01
2019-02-0611 | 51.810 | 50.09219 | 11.8130.06 | 101812.8 | 0.5
2019-02-0710 | 50.05 | 41.07347 | 29.229.91 | 10134.8 | 0.19
2019-02-0811 | 51.88 | 46.48153 | 32.9329.71 | 10068.3 | 0.33
2019-02-0910 | 50.06 | 42.87653 | 32.9329.74 | 100711.8 | 0.46
2019-02-109 | 48.25 | 41.07451 | 31.6929.62 | 100320.2 | 0.8
2019-02-119 | 48.24 | 39.26930 | 18.6430.27 | 10252.1 | 0.08
2019-02-129 | 48.26 | 42.87715 | 9.3230.56 | 10350.0 | 0.0
2019-02-139 | 48.25 | 41.07624 | 14.9130.5 | 10330.0 | 0.0
2019-02-149 | 48.25 | 41.07424 | 14.9130.42 | 10300.0 | 0.0
2019-02-1511 | 51.87 | 44.67925 | 15.5330.3 | 10260.0 | 0.0
2019-02-1611 | 51.88 | 46.48424 | 14.9130.24 | 10240.0 | 0.0
2019-02-1711 | 51.88 | 46.48333 | 20.5130.03 | 10170.1 | 0.0
2019-02-189 | 48.27 | 44.68320 | 12.4330.03 | 10172.8 | 0.11
2019-02-199 | 48.25 | 41.07219 | 11.8130.15 | 10210.2 | 0.01
2019-02-2010 | 50.07 | 44.68227 | 16.7830.15 | 10210.0 | 0.0
2019-02-2110 | 50.08 | 46.48322 | 13.6730.33 | 10270.0 | 0.0
2019-02-2211 | 51.87 | 44.67719 | 11.8130.47 | 10320.0 | 0.0
2019-02-2311 | 51.88 | 46.48117 | 10.5630.47 | 10320.0 | 0.0
2019-02-2411 | 51.87 | 44.67313 | 8.0830.5 | 10330.0 | 0.0
2019-02-2511 | 51.86 | 42.87115 | 9.3230.53 | 10340.0 | 0.0
2019-02-2612 | 53.68 | 46.47514 | 8.730.42 | 10300.0 | 0.0
2019-02-2713 | 55.410 | 50.08115 | 9.3230.27 | 10250.0 | 0.0
2019-02-2811 | 51.89 | 48.28540 | 24.8530.15 | 10211.4 | 0.06

Saint Helier 10 Year Historical Weather Data

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