Last updated: April 14, 2025
The climate of Jersey, particularly in St Clement, showcases a mild yet dynamic weather pattern, characterized by a minimum temperature of -2°C (29°F) in March and a maximum of 27°C (80°F) in July. Precipitation varies significantly throughout the year, with a low of 36 mm (1.4 in) in April and peaks at 185 mm (7.3 in) in December. Humidity levels also fluctuate, averaging 69% in the warmest month of July, while reaching up to 92% in the cooler December. This unique combination of temperatures and precipitation creates a diverse climate, ideal for both local flora and visitors alike. For more detailed climate statistics, explore the specific months in St Clement.
Jersey features a temperate maritime climate classified as Cfb according to the Köppen-Geiger system. This means residents of St Clement and St Helier enjoy mild temperatures and relatively high humidity throughout the year. The coastal location ensures that winters are particularly moderate, while summers remain pleasantly warm, creating ideal conditions for both outdoor activities and agricultural pursuits. With consistent rainfall distributed fairly evenly across the seasons, Jersey's lush landscapes thrive, making it a picturesque destination year-round.
| Climate Zone | Description |
|---|---|
| Cfb | Oceanic climate with mild temperatures and moderate rainfall year-round. |
In Jersey, the annual temperature cycle reveals a notable progression from the chill of winter to the warmth of summer. January kicks off the year with brisk temperatures ranging from a minimum of 2°C (35°F) to a maximum of 13°C (56°F). As February rolls in, we see the coldest dip at -1°C (31°F), hinting at winter's lingering grip, which gradually eases into milder March temperatures that can reach 14°C (58°F). The arrival of April marks a significant warming trend, with highs now peaking at 17°C (62°F), while May comfortably breaches the 20°C (69°F) mark, signaling the onset of spring. The summer months of June through August bring delightful warmth, with July showcasing highs of 27°C (80°F), creating perfect beach weather. As autumn settles in, temperatures begin to decline again, with October maintaining a gentle warmth at 20°C (69°F) before dropping to 5°C (41°F) by November. By December, the cycle completes itself,, with lows at 3°C (38°F) and highs of 14°C (57°F), reminiscent of January’s start, capturing the essence of Jersey's climate rhythm throughout the year.
In Jersey, precipitation patterns reveal a notable shift as the year progresses, with April experiencing the least rainfall at just 36 mm (1.4 in) over a mere 8 days. This contrasts sharply with December, which sees the peak precipitation of 185 mm (7.3 in) across 22 days, highlighting a significant increase in both the quantity and frequency of rain. This trend underscores the transition from the milder, drier spring months to the wetter and more overcast winter season, inviting residents and visitors alike to be prepared for the changing weather conditions as the year unfolds.
Jersey experiences a notable range of humidity throughout the year, with summer months like July seeing a minimum of 69% in St Clement, which can make the warm season feel quite sultry. In contrast, the winter winds bring increased moisture, pushing humidity levels to a peak of 92% in December in the same locale. This seasonal shift highlights the island's distinct maritime climate, where the air is noticeably more humid during the colder months, creating a refreshing yet damp environment that defines Jersey's winter charm.
June in St Clement sees a notable consistency in the average daily maximum UV Index (UVI), consistently peaking at 9. This elevated level indicates an enhanced risk of harm from unprotected sun exposure, prompting residents and visitors alike to adopt precautionary measures. As summer approaches, awareness of the UV trends could help individuals better prepare for outdoor activities, ensuring sun safety remains a priority under Jersey's vibrant skies.
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In Jersey, sunshine duration exhibits a striking contrast between the colder and warmer months. For instance, January enjoys a modest 104 hours of sunlight in St Clement, creating a cozy atmosphere perfect for indoor activities. As the year progresses into July, this figure skyrockets to an impressive 432 hours—an abundance of sunshine that invites beach outings and outdoor adventures. This clear seasonal trend highlights Jersey's delightful transition from winter's subdued light to the vibrant, sun-filled days of summer, making it an alluring destination for sun-seekers throughout the year.
The likelihood of sunny weather in Jersey shows a clear seasonal trend, with a marked increase as the year progresses. In January, the chances of enjoying sunny skies in St Clement hover at a modest 20%, reflecting the colder months' typically overcast conditions. However, as spring approaches in April, this percentage rises substantially to 64%, signaling a shift towards brighter days and more inviting weather. This transition not only highlights the warmth of the approaching season but also makes April an appealing month for those seeking to bask in the sun.
In St Clement, Jersey, daylight hours showcase a striking seasonal contrast that highlights the island's shift from winter to summer. During December, residents experience a brief 8 hours of sunlight, a time when the days are shortest and the winter chill sets in. As the year progresses into June, the landscape transforms dramatically, basking under nearly 16 hours of daylight. This significant increase not only invites longer outdoor activities but also emphasizes the island's vibrant summer life, encouraging both locals and visitors to fully embrace the warmth and beauty that the extended daylight offers.
The climate in St Clement, Jersey, offers a delightful mix of seasonal changes, with mild temperatures and a good deal of humidity throughout the year. Winter months see temperatures ranging from a crisp 2°C to 13°C (35°F to 56°F), while summer warms up significantly, reaching highs of 27°C (80°F) in July. Rainfall varies, with the wettest months being October and December, delivering over 150 mm (5.9 in) of precipitation. Despite these rainy spells, the lush scenery flourishes, complemented by a refreshing sea breeze. For a deeper dive into the weather patterns, explore more on St Clement climate.
St Helier, Jersey, enjoys a temperate maritime climate characterized by mild winters and warm summers. Winter temperatures can dip to around 2°C (35°F) in January, while July and August typically bring sunny highs of 25 to 27°C (78 to 80°F). Despite this pleasant warmth, visitors should be prepared for rainfall, especially in October, which sees the highest precipitation at 157 mm (6.2 in). Humidity levels fluctuate throughout the year, peaking at around 90% in winter but easing to 69% by July. For more detailed information, explore the complete guide on the St Helier climate.
The climate of Jersey showcases a distinctive range of temperatures and precipitation, creating a vibrant atmosphere throughout the year. St Clement experiences brisk winters, with temperatures dipping to a chilly -2°C (29°F) in March, while summer brings warmth, peaking at a delightful 27°C (80°F) in July. Precipitation varies significantly, with the driest month, April, receiving a modest 36 mm (1.4 in), contrasting sharply with the wettest month, December, which can see as much as 185 mm (7.3 in). Humidity levels also reveal a stark transition; while July enjoys a breathable average minimum of 69%, December's humidity can soar to a muggy 92%. These trends highlight Jersey’s dynamic climate, offering both challenges and charms that define its unique environmental character.