The climate of Portinfer
Designated under the Köppen climate classification as Cfb or Marine west coast, warm summer,
Portinfer nestles on the northern coastline of the island of
Jersey. Positioned between broad Atlantic Ocean and nestled between England and France, it enjoys moderate year-round temperatures and enduring maritime influence.
Throughout the year, temperatures typically range from a low of 6.9°C (44.4°F) in
February to a peak of 18.1°C (64.6°F) in
August. This common trend, of moderate variation, persists across various weather factors. Humidity is reasonably consistent at around 78% to 84% annually, while visibility remains unvaried and excellent at 10km (6.2mi) throughout the year.
Rainfall in Portinfer shows a distinct pattern with months of
November and
December receiving the highest precipitation of 74mm (2.91") and 66mm (2.6") respectively. There are minimal chances of snow disruption, with only one snowfall each projected in
January and November. Wind speeds have a bit higher fluctuation, usually peaking at 34.3km/h (21.3mph) in December, while averaging around 20.6km/h (12.8mph) in
July.
In terms of sunshine, the highest daily average arrives in July with 9.8 hours, but drops dramatically to only 4 hours in the darker months of December and January. Across the twelve-month calendar, daylight varies between the extremes of 8.3 hours in December to 16.2 hours in
June.
The best time to visit Portinfer
With an enjoyable contrast of pleasant temperatures and lower rainfall, between
May and
September can be considered as the most favorable time to explore
Portinfer. Association with higher visibility of 10km (6.2mi), increased sunlight duration of 9.2 hours to 9.8 hours, and lower wind speeds of 22.3km/h (13.9mph) to 21.2km/h (13.2mph), enhances the visitor experience in the summer months.
The worst time to visit Portinfer
The months from
November through
February may pose slight discomfort for visitors due to lower temperatures, increased precipitation and shorter daylight hours. While the average daily sunshine dwindles from 4.1 hours in
December to 4 hours in
January, the higher wind speeds notably in December might detract the visitors with an increase of 32.9km/h (20.4mph) to 34.3km/h (21.3mph). Additionally, November and December has the highest average rainfall, with 74mm (2.91") and 66mm (2.6") respectively.
Spring weather in Portinfer
From
March to
May,
Portinfer experiences a gentle transition from winter to summer. March brings temperatures from 9°C (48.2°F) to 7.6°C (45.7°F), while May sees a high of 13.2°C (55.8°F) and low of 10.9°C (51.6°F). The rainfall decreases from March to
April from 37mm (1.46") to 32mm (1.26"), and again in May to 27mm (1.06"). Daily sunlight steadily rises from 6.4 hours in March to 9.3 hours by May, suggesting the arrival of longer and brighter days.
Summer weather in Portinfer
Summer in
Portinfer extends from
June through
August with comfortable temperatures ranging from 15.7°C (60.3°F) to 18.1°C (64.6°F). Rainfall shows a rise in June with 38mm (1.5"), but drops to 27mm (1.06") in
July before a mild uptick in August with 43mm (1.69"). While August tops the warmest month with a temperature of 18.1°C (64.6°F) and 9.3 hours of Sun, it also features more frequent sea fog due to higher humidity at 84%.
Autumn weather in Portinfer
Autumn in
Portinfer, from
September to
November, presents gradually falling temperatures combined with increasing rainfall. September opens with a delightful 15.6°C (60.1°F) which slips to a cool 10.9°C (51.6°F) by November. Rainfall mirrors this descent, growing from 29mm (1.14") in September to a rather damp 74mm (2.91") by November.
Winter weather in Portinfer
Winter in this part of
Jersey maintains moderate conditions compared to mainland Europe. With lowest temperatures from 10.8°C (51.4°F) in
December to 7.3°C (45.1°F) in
January, it’s unusually mild. The averages range of daylight is from 9.1 hours in
November to 8.3 hours in December. The rainfall sways around 66mm (2.6") in December and minimizes to 55mm (2.17") in January. Surprisingly, snow, at 1mm (0.04") in January, is an occasional visitor rather than a regular winter occurrence.
Weather in January
Kicking off the year in
Portinfer,
Jersey, the weather tends to be mild, with temperatures keeping between 9.5°C (49.1°F) and 7.3°C (45.1°F). Moisture in the air remains high, resulting in a bit of a damp feel throughout the month, reinforcing the winter feel.
Weather in January »Weather in February
February shares similarities with
January in terms of weather dynamics in
Portinfer. There is a minute increase in daylight hours and sunshine occurrence. Overall, temperatures remain steady and rainfall decreases only slightly.
Weather in February » Weather in March
As
Portinfer transitions into spring,
March offers an increasing amount of daylight hours, up to 11.9 hours. The average temperatures subsequently rise, while wind speeds begin to subside. Yet, the town doesn't dismiss the winter quite so quickly.
Weather in March »
Weather in April
With
April arrives the typical spring weather in
Portinfer. Temperature continues its ascent and daylight hours grow longer. Relative humidity keeps steady, contrasting with the descending wind speeds that can now be as wind gust as 36.3km/h (22.6mph).
Weather in April »Weather in May
May brings
Portinfer a further injection of warmth as summer approaches. Increased hours of daylight and temperatures begin to make outdoor activities more pleasing. Decreasing wind speed and almost equal rainfall to the previous month, helps maintain clear skies and thus, more sunlight.
Weather in May » Weather in June
June marks the start of summer in
Portinfer, featuring longer daylight hours, peaking at 16.2 hours. Temperatures increase slightly, creating an overall mild and comfortable climate. Although rainfall increases to 38mm (1.5"), the days of rainfall remain almost the same compared to
May.
Weather in June »
Weather in July
July is the warmest month, on average, in
Portinfer with temperatures reaching up to 17.6°C (63.7°F). Despite being the peak of summer, the volume of rainfall remains moderate and doesn't disrupt outdoor activities. The UV index remains at 5, making sun protection a wise choice during peak hours of sunshine.
Weather in July » Weather in August
August continues the mild summer weather in
Portinfer. Temperatures are almost on par with
July, with the maximum value reaching 18.1°C (64.6°F). Rainfall increases slightly, but it's countered with an equal increase in the days of rainfall.
Weather in August » Weather in September
September ushers into
Portinfer the start of autumn, with temperatures slowly decreasing from the summer peak. The decline occurs as daylight hours recede to 12.6 hours with pressure registering at 1018mb. However, wind speed starts climbing again, bringing a slight chill in the air.
Weather in September »
Weather in October
October sees noticeable shifts in
Portinfer’s weather as temperatures drop further and rainfall significantly increases to 55mm (2.17"). While daylight hours keep falling, the intensity of wind gusts reaches 39.4km/h (24.5mph), reinforcing the autumnal feel.
Weather in October » Weather in November
November signals the advent of winter in
Portinfer, introducing chillier days and nights with temperatures sliding down to 10.9°C (51.6°F). A considerable increase in rainfall to 74mm (2.91") emphasizes the change of seasons.
Weather in November » Weather in December
December wraps up the year in
Portinfer with the coldest average temperatures between 10.8°C (51.4°F) and 9.2°C (48.6°F), and rain accumulating to 66mm (2.6"). With the shortest daylight hours, the days are brief and the nights long, typical of the winter season.
Weather in December » [Resources]