The climate of Saint Sampson
A marine west coast climate or warm summer under a Köppen climate classification prevails in
Saint Sampson,
Guernsey. The temperate climate makes it comfortable throughout the year, with temperatures rising from 7°C (44.6°F) in
February to a peak of 17.8°C (64°F) in
August. Variations in temperature exist across the year, and a marked difference exists in temperatures from winter to summer seasons.
Rainfall occurs throughout the year with the heaviest descending in
November at 87mm (3.43") and the lightest in
July at 26mm (1.02"). The number of rainy days per year fluctuates, peaking in November and
December with over 22 days of precipitation, while the drier times fall from
May to July with less than 13 days of rainfall.
Observations note a consistency in visibility, maintaining an average of 10km (6.2mi) throughout the year. Wind speeds surge from 21.9km/h (13.6mph) in July to a maximum of 36km/h (22.4mph) in December, with gusts reaching an impressive 49.8km/h (30.9mph) in December. The prominence of relative humidity manifests more during summer with a peak at 84% in
June and July, slightly dropping to 77% in December and
January.
The best time to visit Saint Sampson
The optimal time to visit
Saint Sampson is between
May and
September when, compared to rest of the year, the island experiences mild temperatures between 12.8°C (55°F) and 17.8°C (64°F). Sunshine is abundant during these months, especially from
June to
August when the island sees about 9.1 to 9.7 hours of daily sunshine. Rainfall is at its lowest, and the relative humidity is manageable despite reaching a peak of 84%. Clear skies dominate during the summer months with cloud coverage dropping to 37% in
July.
The worst time to visit Saint Sampson
The less favorable months to tour
Saint Sampson fall within the colder, wetter period of
November to
January. During this window, temperatures drop to lows of around 9°C (48.2°F) and rainfall levels rise to the highest peaks of the year. Moreover, daylight hours dip to their lowest point, with merely about 8 to 9 hours daily, sharply contrasting with the long summer days.
Spring weather in Saint Sampson
Spring brings milder temperatures to
Saint Sampson from
March to
May, ranging from 9.8°C (49.6°F) to 12.8°C (55°F). Though rainfall isn't a particular concern during this season, relative humidity begins to climb from 80% in March to 82% in May. Visitors can enjoy increasing daylight hours, from 11.9 hours in March to a comfortable 15.4 hours in May.
Summer weather in Saint Sampson
The summer months of
June through
August in
Saint Sampson offer an inviting climate with temperatures varying between 15.2°C (59.4°F) and 17.8°C (64°F). Rainfall is significantly reduced during this period, and combined with an average of 9.1 to 9.7 hours of daily sunshine, this is a prime time for outdoor activities. Despite the humidity peaking, the moderate temperatures keep it comfortable.
Autumn weather in Saint Sampson
Autumn settles into
Saint Sampson from
September to
November with a noticeable decrease in temperature from 17.2°C (63°F) to 13°C (55.4°F). Rainfall begins a steady climb in this period, peaking to the highest in November at 87mm (3.43"). Daylight hours taper down, but the season still offers a respectable 9.1 to 12.6 daylight hours daily.
Winter weather in Saint Sampson
Winter in
Saint Sampson, from
December to
February, records the coldest temperatures of the year, ranging from 9.2°C (48.6°F) to 11.1°C (52°F). Rainfall remains fairly constant around 70mm (2.76"), and days shorten significantly with daylight hours hovering between 8.3 and 10.2 hours. The chill in the air amplifies with wind speeds escalating to more than 34km/h (21.1mph) in December and
January.
Weather in January
The year opens with a cool month in
Saint Sampson,
Guernsey.
January is characterized by moderate rainfall, coupled with occasional snowfall, a property unique compared to subsequent months. The temperature fluctuates from 7.8°C (46°F) as the lowest to a peak of 9.8°C (49.6°F).
Weather in January »Weather in February
In
February, the city experiences a slight decrease in temperature, humidity, and rainfall compared to
January. The cool trend persists, with snowfall almost flushing out completely. The lowest temperature plummets to 7°C (44.6°F) while the highest temperature slightly drops to 9.2°C (48.6°F).
Weather in February »Weather in March
Things start to warm up a notch in
Saint Sampson as spring breaks in
March. This month is marked by the cessation of any remaining snowfall altogether, and a noticeable increase in overall sunlight. Temperatures range from a low of 7.4°C (45.3°F) to a high of 9.8°C (49.6°F).
Weather in March »
Weather in April
April denotes a significant turn in the city's climatological picture, with the conditions turning warmer and drier. Rainfall reduces further to a monthly total of 32mm (1.26"), presenting a marked difference from the previous month.
Weather in April » Weather in May
As
May sets in,
Saint Sampson transitions fully into spring, with a further uptick in temperatures. The city experiences no snowfall, increased daylight hours, and modest peaks of sunshine of around 15.4 hours. An increase in temperature can be felt with the mercury chart showing levels from a low of 10.6°C (51.1°F) to a high of 12.8°C (55°F).
Weather in May »Weather in June
June comes with the onset of summer in
Saint Sampson, bringing along warmer days. This month experiences the highest amount of daylight at 16.2 hours, denoting the longest days of the year. The temperatures rise to a range between 13.2°C (55.8°F) and 15.2°C (59.4°F), which is a notable increase from the previous month.
Weather in June »
Weather in July
July forms the height of summer in
Saint Sampson, marked by hot days and relatively high humidity levels. The temperatures rise further and vary from 15.3°C (59.5°F) to a warm 16.9°C (62.4°F), scoring July as the hottest month of the year.
Weather in July » Weather in August
August signifies the waning of summer in
Saint Sampson, with temperatures slightly dipping towards the end of the month. Despite this, it remains largely warm, with temperatures ranging between 15.8°C (60.4°F) to 17.8°C (64°F).
Weather in August » Weather in September
The arrival of
September heralds the commencement of autumn in
Saint Sampson. The climate cools slightly from the summer's peak temperature, with the range set between 15.4°C (59.7°F) and 17.2°C (63°F). There's a slight increase in rainfall from
August, recording a total of 31mm (1.22") precipitation.
Weather in September »
Weather in October
October in
Saint Sampson marks a further evolutionary stage in autumn, complete with a palpable fall in temperatures. The mercury shows readings that oscillate between 13.6°C (56.5°F) and 15.5°C (59.9°F), a fall that draws a significant departure from the heat of the summer months.
Weather in October » Weather in November
November proves to be chillier and wetter than the preceding autumn months in
Saint Sampson. Incredibly, this month brings the highest amount of rainfall totaling 87mm (3.43"), it gets accompanied by reduced sunlight hours. The temperature shows a downward trend, fluctuating from a low of 10.9°C (51.6°F) to a high of 13°C (55.4°F).
Weather in November » Weather in December
The year wraps up with
December bringing along the winter chill in
Saint Sampson. Unlike the gradual decline of temperatures over the autumn months, December exhibits quicker temperature dives that go from 9.2°C (48.6°F) up to 11.1°C (52°F).
Weather in December » [Resources]