Climate Insights for Grouville Arsenal

Jersey

Hottest
August
19°C peak66°F peak
Coldest
January
7°C low45°F low
Wettest
November
148 mm rain5.8 in rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Grouville Arsenal is temperate. The average annual temperature is 13°C and approximately 1,093 mm of precipitation falls per year. Grouville Arsenal receives a notable amount of rainfall throughout the year, including during its driest month. Grouville Arsenal is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 7°C.The climate in Grouville Arsenal is temperate. The average annual temperature is 55°F and approximately 43 in of precipitation falls per year. Grouville Arsenal receives a notable amount of rainfall throughout the year, including during its driest month. Grouville Arsenal is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 45°F.

Temperature

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: 9°Average: 8°Min: 7°FebMax: 9°Average: 8°Min: 7°MarMax: 10°Average: 9°Min: 8°AprMax: 12°Average: 10°Min: 9°MayMax: 14°Average: 13°Min: 12°JunMax: 17°Average: 16°Min: 15°JulMax: 18°Average: 17°Min: 17°AugMax: 19°Average: 18°Min: 17°SepMax: 18°Average: 17°Min: 16°OctMax: 16°Average: 15°Min: 14°NovMax: 13°Average: 12°Min: 11°DecMax: 11°Average: 10°Min: 9°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 49°FAverage: 47°FMin: 45°FFebMax: 49°FAverage: 47°FMin: 45°FMarMax: 50°FAverage: 48°FMin: 46°FAprMax: 53°FAverage: 51°FMin: 49°FMayMax: 57°FAverage: 55°FMin: 54°FJunMax: 62°FAverage: 60°FMin: 58°FJulMax: 65°FAverage: 63°FMin: 62°FAugMax: 66°FAverage: 64°FMin: 63°FSepMax: 65°FAverage: 63°FMin: 61°FOctMax: 61°FAverage: 59°FMin: 57°FNovMax: 55°FAverage: 53°FMin: 51°FDecMax: 51°FAverage: 49°FMin: 48°F
Max
Average
Min

Grouville Arsenal sees moderate temperature variation throughout the year, ranging from 7°C to 19°C. August is the warmest month, though highs remain moderate at 19°C with a mean of 18°C. January is the coolest month, with minimum temperatures around 7°C and an average of 8°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.Grouville Arsenal sees moderate temperature variation throughout the year, ranging from 45°F to 66°F. August is the warmest month, though highs remain moderate at 66°F with a mean of 64°F. January is the coolest month, with minimum temperatures around 45°F and an average of 47°F. Daily temperature variation is modest, with an average difference of 3°F between highs and lows. The sharpest temperature change occurs between October and November, with a 6°F shift in average temperatures.

Precipitation

0mm25mm50mm75mm100mm125mm150mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 135mmSnow: 0mmFebPrecipitation: 88mmSnow: 0mmMarPrecipitation: 79mmSnow: 0mmAprPrecipitation: 46mmSnow: 0mmMayPrecipitation: 50mmSnow: 0mmJunPrecipitation: 60mmSnow: 0mmJulPrecipitation: 48mmSnow: 0mmAugPrecipitation: 62mmSnow: 0mmSepPrecipitation: 97mmSnow: 0mmOctPrecipitation: 135mmSnow: 0mmNovPrecipitation: 148mmSnow: 1mmDecPrecipitation: 146mmSnow: 0mm
Precipitation
Snow
0in2in4in6inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 5.3inFebPrecipitation: 3.5inMarPrecipitation: 3.1inAprPrecipitation: 1.8inMayPrecipitation: 1.9inJunPrecipitation: 2.4inJulPrecipitation: 1.9inAugPrecipitation: 2.4inSepPrecipitation: 3.8inOctPrecipitation: 5.3inNovPrecipitation: 5.8inDecPrecipitation: 5.8in
Precipitation

Grouville Arsenal is a moderately rainy area, receiving approximately 1,093 mm of precipitation annually, which averages out to around 91 mm per month. The wettest month is November, averaging 148 mm of rainfall. December and January also tend to see above-average precipitation. The driest month is April, with just 46 mm. That's 102 mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.Grouville Arsenal is a moderately rainy area, receiving approximately 43 in of precipitation annually, which averages out to around 3.6 in per month. The wettest month is November, averaging 5.8 in of rainfall. December and January also tend to see above-average precipitation. The driest month is April, with just 1.8 in. That's 4 in less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Wind

0km/h5km/h10km/h15km/h20km/h25km/h30km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 29km/hFebWind Speed: 30km/hMarWind Speed: 27km/hAprWind Speed: 23km/hMayWind Speed: 21km/hJunWind Speed: 20km/hJulWind Speed: 21km/hAugWind Speed: 21km/hSepWind Speed: 23km/hOctWind Speed: 26km/hNovWind Speed: 30km/hDecWind Speed: 30km/h
Wind Speed
0mph5mph10mph15mph20mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 18mphFebWind Speed: 18mphMarWind Speed: 17mphAprWind Speed: 14mphMayWind Speed: 13mphJunWind Speed: 12mphJulWind Speed: 13mphAugWind Speed: 13mphSepWind Speed: 14mphOctWind Speed: 16mphNovWind Speed: 19mphDecWind Speed: 19mph
Wind Speed

Grouville Arsenal is moderately windy, with an average annual wind speed of 25km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 30km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in June, with average winds dropping to 20km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 30km/h in winter, 24km/h in spring, 21km/h in summer, 27km/h in autumn.Grouville Arsenal is very windy, with an average annual wind speed of 16mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 19mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in June, with average winds dropping to 12mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 18mph in winter, 15mph in spring, 13mph in summer, 16mph in autumn.

Best Time to Visit

Jan8°47°F
Feb8°47°F
Mar9°48°F
Apr10°51°F
May13°55°F
Jun16°60°F
Jul17°63°F
Aug18°64°F
Sep17°63°F
Oct15°59°F
Nov12°53°F
Dec10°49°F

The best time to visit Grouville Arsenal is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 67 mm per month. By contrast, January can be quite cold with temperatures dropping to 7°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Grouville Arsenal is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 63°F with modest rainfall averaging 2.6 in per month. By contrast, January can be quite cold with temperatures dropping to 45°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

Monthly Climate Data

The table below shows monthly climate averages for Grouville Arsenal based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Grouville Arsenal based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
7 °C45 °F
9 °C49 °F
29 km/h18 mph
135 mm5.3 in
0 cm0 in
Feb
7 °C45 °F
9 °C49 °F
30 km/h18 mph
88 mm3.5 in
0 cm0 in
Mar
8 °C46 °F
10 °C50 °F
27 km/h17 mph
79 mm3.1 in
0 cm0 in
Apr
9 °C49 °F
12 °C53 °F
23 km/h14 mph
46 mm1.8 in
0 cm0 in
May
12 °C54 °F
14 °C57 °F
21 km/h13 mph
50 mm1.9 in
0 cm0 in
Jun
15 °C58 °F
17 °C62 °F
20 km/h12 mph
60 mm2.4 in
0 cm0 in
Jul
17 °C62 °F
18 °C65 °F
21 km/h13 mph
48 mm1.9 in
0 cm0 in
Aug
17 °C63 °F
19 °C66 °F
21 km/h13 mph
62 mm2.4 in
0 cm0 in
Sep
16 °C61 °F
18 °C65 °F
23 km/h14 mph
97 mm3.8 in
0 cm0 in
OctCurrent
14 °C57 °F
16 °C61 °F
26 km/h16 mph
135 mm5.3 in
0 cm0 in
Nov
11 °C51 °F
13 °C55 °F
30 km/h19 mph
148 mm5.8 in
1 cm0 in
Dec
9 °C48 °F
11 °C51 °F
30 km/h19 mph
146 mm5.8 in
0 cm0 in