Saint Johns, Saint Peter Port, Guernsey Climate

Weather: 9.56°C/49.21°F, Wind SW at 9.26 km/h, 81% Humidity, 0% Chance of rain

Guernsey
(Photo by Andy Newton on Unsplash)

Saint Johns Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Saint Johns has a Marine west coast, warm summer climate (Classification: Cfb). The district’s yearly temperature is 12.27ºC (54.09ºF) and it is -0.23% lower than Guernsey’s averages. Saint Johns typically receives about 46.83 millimeters (1.84 inches) of precipitation and has 120.67 rainy days (33.06% of the time) annually.

CountryGuernsey
CitySaint Peter Port
Longitude-2.5394049
Latitude49.4647261
Attitude/ElevationNonem (0ft)
Local timeFriday 06:59
Annual high temperature12.89ºC (55.2ºF)
Annual low temperature10.69ºC (51.24ºF)
Average annual precip.46.83mm (1.84in)
Warmest monthAugust (17.21ºC / 62.98ºF)
Coldest MonthFebruary (6.73ºC / 44.11ºF)
Wettest MonthDecember (77.85mm / 3.06in)
Driest MonthJuly (23.5mm / 0.93in)
Number of days with rainfall (≥ 1.0 mm)120.67 days (33.06%)
Days with no rain244.32999999999998 days (66.94%)
Humidity78.48%

Climate Saint Johns: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)12.75(54.95)12.75(54.95)13.74(56.73)16.68(62.02)17.66(63.79)20.6(69.08)21.58(70.84)21.58(70.84)20.6(69.08)19.62(67.32)16.68(62.02)14.72(58.5)21.58(70.84)
Average high °C (°F)9.56(49.21)8.9(48.02)9.43(48.97)10.75(51.35)12.41(54.34)14.63(58.33)16.59(61.86)17.21(62.98)16.68(62.02)14.99(58.98)12.63(54.73)10.91(51.64)12.89(55.2)
Daily mean °C (°F)8.91(48.04)8.24(46.83)8.77(47.79)10.01(50.02)11.8(53.24)14.08(57.34)16.05(60.89)16.67(62.01)16.04(60.87)14.37(57.87)12.0(53.6)10.3(50.54)12.27(54.09)
Average low °C (°F)7.16(44.89)6.73(44.11)7.19(44.94)8.5(47.3)10.25(50.45)12.52(54.54)14.56(58.21)15.22(59.4)14.44(57.99)12.78(55.0)10.35(50.63)8.66(47.59)10.69(51.24)
Record low °C (°F)-2.94(26.71)-1.96(28.47)-2.94(26.71)-1.96(28.47)-0.98(30.24)1.96(35.53)5.89(42.6)0.0(0)3.92(39.06)2.94(37.29)-0.98(30.24)-1.96(28.47)-2.94(26.71)
Average precipitation mm (inches)63.41(2.5)50.73(2.0)38.49(1.52)29.92(1.18)26.81(1.06)32.01(1.26)23.5(0.93)42.24(1.66)36.39(1.43)67.78(2.67)72.83(2.87)77.85(3.06)46.83(1.84)
Average precipitation days (≥ 1.0 mm)14.0912.049.277.316.065.86.68.657.512.8415.8714.6310.06
Average relative humidity (%)76.376.2177.8778.2580.7683.0382.5980.677.9976.975.7375.5178.48
Mean monthly sunshine hours5.455.978.9612.2212.8112.8813.0712.5310.96.495.745.279.36

Climate Graph

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

Saint Johns

Saint Johns Temperature by Month

August
16.67°C | 62.01°F
July
16.05°C | 60.89°F
September
16.04°C | 60.87°F
October
14.37°C | 57.87°F
June
14.08°C | 57.34°F
November
12.0°C | 53.6°F
May
11.8°C | 53.24°F
December
10.3°C | 50.54°F
April
10.01°C | 50.02°F
January
8.91°C | 48.04°F
March
8.77°C | 47.79°F
February
8.24°C | 46.83°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 Temperature19.62°C (67.32°F)16.55°C (61.79°F)14.72°C (58.5°F)
Avg Temperature17.66°C (63.79°F)15.93°C (60.67°F)13.74°C (56.73°F)
Min Temperature16.68°C (62.02°F)15.37°C (59.67°F)13.74°C (56.73°F)
Dew PointMaxAverageMin
Dew Point15.7°C (60.26°F)12.95°C (55.31°F)8.83°C (47.89°F)
PrecipitationMaxAverageMinSum
Precipitation11.38mm | 0.45in1.34mm | 0.05in0.0mm | 0in40.05mm | 1.58in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind45.13kmh | 28.04mph23.25kmh | 14.45mph5.89kmh | 3.66mph
Gust Wind66.71kmh | 41.45mph34.83kmh | 21.64mph9.81kmh | 6.1mph
Sea Level PressureMaxAverageMin
Sea Level Pressure11.38mb1.34mb0.0mb
Saint Johns

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
September° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2013-09-0115.7 | 60.269.81 | 49.666920.6 | 12.829.87 | 1011.510.0 | 0
2013-09-0215.7 | 60.2612.75 | 54.957917.66 | 10.9729.84 | 1010.530.0 | 0
2013-09-0316.68 | 62.0214.72 | 58.5847.85 | 4.8829.75 | 1007.590.0 | 0
2013-09-0417.66 | 63.7914.72 | 58.58314.72 | 9.1529.55 | 1000.720.0 | 0
2013-09-0516.68 | 62.0214.72 | 58.58316.68 | 10.3629.35 | 993.850.0 | 0
2013-09-0615.7 | 60.2610.79 | 51.427424.53 | 15.2429.29 | 991.893.14 | 0.12
2013-09-0714.72 | 58.59.81 | 49.667125.51 | 15.8529.41 | 995.822.85 | 0.11
2013-09-0814.72 | 58.59.81 | 49.667127.47 | 17.0729.55 | 1000.724.91 | 0.19
2013-09-0916.68 | 62.0213.74 | 56.738431.4 | 19.5129.46 | 997.782.16 | 0.09
2013-09-1015.7 | 60.2610.79 | 51.427230.41 | 18.929.64 | 1003.670.0 | 0
2013-09-1115.7 | 60.2610.79 | 51.427525.51 | 15.8529.67 | 1004.650.49 | 0.02
2013-09-1216.68 | 62.0214.72 | 58.59116.68 | 10.3629.58 | 1001.71.18 | 0.05
2013-09-1316.68 | 62.0215.7 | 60.269430.41 | 18.929.55 | 1000.720.1 | 0.0
2013-09-1413.74 | 56.7310.79 | 51.427627.47 | 17.0729.46 | 997.780.1 | 0.0
2013-09-1514.72 | 58.511.77 | 53.197833.36 | 20.7329.38 | 994.840.49 | 0.02
2013-09-1614.72 | 58.58.83 | 47.896745.13 | 28.0429.23 | 989.930.39 | 0.02
2013-09-1715.7 | 60.2612.75 | 54.958345.13 | 28.0429.15 | 986.990.98 | 0.04
2013-09-1815.7 | 60.2611.77 | 53.197739.24 | 24.3829.2 | 988.950.69 | 0.03
2013-09-1915.7 | 60.2611.77 | 53.198231.4 | 19.5129.38 | 994.840.98 | 0.04
2013-09-2014.72 | 58.510.79 | 51.427815.7 | 9.7629.55 | 1000.720.0 | 0
2013-09-2115.7 | 60.2613.74 | 56.738713.74 | 8.5429.7 | 1005.630.0 | 0
2013-09-2216.68 | 62.0215.7 | 60.26949.81 | 6.129.75 | 1007.590.0 | 0
2013-09-2316.68 | 62.0214.72 | 58.58822.57 | 14.0229.61 | 1002.680.0 | 0
2013-09-2415.7 | 60.2613.74 | 56.738511.77 | 7.3129.41 | 995.820.0 | 0
2013-09-2516.68 | 62.0214.72 | 58.5885.89 | 3.6629.29 | 991.892.16 | 0.09
2013-09-2616.68 | 62.0214.72 | 58.59215.7 | 9.7629.38 | 994.842.94 | 0.12
2013-09-2716.68 | 62.0214.72 | 58.59034.34 | 21.3429.29 | 991.893.73 | 0.15
2013-09-2816.68 | 62.0215.7 | 60.269326.49 | 16.4629.09 | 985.0211.38 | 0.45
2013-09-2915.7 | 60.2614.72 | 58.59317.66 | 10.9729.09 | 985.021.28 | 0.05
2013-09-3016.68 | 62.0214.72 | 58.59112.75 | 7.9229.09 | 985.020.1 | 0.0

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