Last updated: August 21, 2025
Experience the charm of Saint Helier, Jersey in July, where the island basks in a delightful average temperature of 17°C (63°F), peaking at a warm 27°C (80°F). While sun lovers can enjoy sun-drenched days, be prepared for occasional showers, as the month sees 47 mm (1.9 in) of rainfall spread across 9 days. With a comfortable humidity level of 69%, July in Saint Helier offers a balanced blend of warmth and refreshing breezes, inviting visitors to indulge in the vibrant atmosphere of this coastal gem.
July in Saint Helier, Jersey brings a delightful warmth, marking the pinnacle of summer with temperatures that typically range from a minimum of 14°C (58°F) to a maximum of 27°C (80°F). With an average temperature hovering around 17°C (63°F), this month showcases a notable shift from the cooler early months of the year, providing ample opportunity for outdoor activities and beach days. The steady rise in temperatures from June further accentuates July’s charm, as the island basks in the sun, inviting both locals and visitors to enjoy its picturesque landscapes. As summer progresses, July not only serves as a peak for warmth but also sets the stage for the transitioning weather that August will bring.
In July, Saint Helier, Jersey experiences a relatively mild continuation of summer, with a total precipitation of 47 mm (1.9 in) spread over 9 days. This marks a notable decrease compared to the heavier rains earlier in the year, particularly April's low of 36 mm. As summer progresses, July typically sees a dip in rainfall, suggesting a transition towards drier weather before the autumn months bring increased precipitation. The pattern indicates that while July remains wetter than the preceding months, it is significantly less so than daunting months like October, which is known for its heavy downpours. Overall, July's weather mirrors the island's seasonal ebb and flow, providing a pleasant interlude between the lush spring and the impending autumnal chill.
In Saint Helier, Jersey, July marks a noticeable dip in humidity, averaging around 69%, which is significantly lower than the preceding months. This decline from the higher levels experienced in June emphasizes the transition into the summer period, bringing a welcome relief from the typically sweltering dampness of earlier in the year. Following July, humidity gradually increases again in August to 73%, suggesting a return towards the more typical numbers seen in the late summer and fall. Overall, these trends highlight July as an ideal time for those seeking a more comfortable climate, as it stands out as the month with the least humidity in the annual cycle.
In July, Saint Helier experiences a very high UV Index of 9, indicating that sun exposure is significant and caution is necessary. This trend of increasing UV levels peaks during the summer months, with June and July sharing the same index, necessitating only 15 minutes of sun exposure before the risk of burning escalates. Following July, the UV Index in August slightly decreases to 8, but remains in the very high category, emphasizing the importance of protection throughout the summer. As the year progresses, the UV Index tapers off, with notable drops in the fall and winter months when exposure risks are low, creating a clear seasonal pattern in sun safety awareness. For more details on UV levels, visit Saint Helier UV Index.
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July is truly the peak of sunshine in Saint Helier, Jersey, basking in an impressive 432 hours of glorious sunlight. This vibrant month stands out not only as the sunniest time of the year but also reflects the steady increase in daylight as we transition from the early months. Beginning with a modest 104 hours in January, sunshine hours steadily rose, culminating in July's radiant glow. Following July, August still enjoys a generous 392 hours, though the gradual decline towards autumn starts to be noticeable. This trend of increasing sunshine not only brightens the summer months but also highlights the natural rhythm of the seasons, making July a truly golden time in Jersey.
In Saint Helier, Jersey, July marks a notable uptick in the likelihood of sunny weather, with a 46% chance of sunshine gracing the island. This peak is particularly striking when compared to the earlier months of the year, where the chances fluctuate between a modest 20% in January and a hopeful 64% in April. Despite a slight decline in June, July offers a welcome shift toward brighter days, and although August mirrors June's 41%, the summer month stands out as a prime opportunity to soak up the sun. This gradual progression from the chilly winter months towards the warmth of summer highlights the charm of July as a time when residents and visitors alike can expect more sunshine and outdoor enjoyment.
In Saint Helier, Jersey, the month of July enjoys a generous 15 hours of daylight, providing ample time for outdoor activities and soaking up the sun. This peak in daylight duration follows a steady climb from the 8 hours in January to a high of 16 hours in June. As summer unfolds, the daylight gradually begins to wane, signaling the transition into late summer and early autumn. Following July, the days shorten to 14 hours in August and further decline into 12 hours in September. This rhythmic pattern of increasing daylight in the spring and early summer, followed by a gradual decrease as the year progresses, paints a delightful picture of the changing seasons in this coastal gem.
In July, the winds in Saint Helier, Jersey shift to a gentler pace, with an average wind speed of 5.8 m/s (13 mph). This marks a noticeable lull compared to the more robust gusts of earlier months, particularly the breezy January and February, which saw average speeds of 7.8 and 8.2 m/s respectively. As summer takes hold, conditions become calmer, providing a perfect backdrop for leisurely outdoor activities. Yet, the winds start to regain their strength as autumn approaches, with speeds climbing back up to 7.4 m/s (17 mph) in October. This trend highlights the seasonal ebb and flow of wind patterns, making July a delightful month for enjoying the tranquility of the beautiful Jersey coast.
Weather in Saint Helier varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Saint Helier, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in July and January, the differences are quite striking. July boasts a much warmer climate, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 27°C (80°F). In contrast, January is significantly cooler, with average temperatures hovering between 2°C (35°F) and 13°C (56°F). Additionally, July experiences relatively low precipitation of 47 mm (1.9 in) over about 9 days, while January sees more rainfall, accumulating 97 mm (3.8 in) over 14 days, leading to a higher humidity level of 90%. For a more detailed look at January weather, you can visit Saint Helier weather in January.
July and February exhibit contrasting weather patterns. In July, temperatures are mild to warm, ranging from a minimum of 14°C (58°F) to a maximum of 27°C (80°F), with an average of 17°C (63°F). The month typically sees less precipitation, averaging 47 mm (1.9 in) over about 9 days, and a humidity level of 69%. In stark contrast, February experiences much cooler temperatures, with minimums dropping to -1°C (31°F) and maximums reaching only 13°C (56°F), averaging around 8°C (47°F). Additionally, it is a wetter month, with 90 mm (3.5 in) of precipitation over 16 days and higher humidity at 89%. For more detailed information about February weather, visit Saint Helier weather in February.
When comparing the weather in July and March, the contrasts are quite striking. July boasts a milder temperature range with minimums of 14°C (58°F) and maximums reaching up to 27°C (80°F), while March experiences much colder temperatures, starting as low as -2°C (29°F) and peaking at only 14°C (58°F). Additionally, July tends to have lower precipitation levels at 47 mm (1.9 in) over 9 days, compared to March, which sees considerably more rain, with 84 mm (3.3 in) over 15 days. The humidity levels also differ, with July at 69% and March significantly higher at 86%. For a deeper look at the weather specifics during March, you can visit Saint Helier weather in March.
When comparing the weather in July and April, we notice a significant difference in temperature and humidity. July boasts a much warmer climate, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 27°C (80°F), while April sees cooler temperatures, with averages from 5°C (41°F) to a maximum of 17°C (62°F). Despite both months experiencing similar levels of precipitation — 47 mm (1.9 in) in July and 36 mm (1.4 in) in April — humidity levels are higher in April at 84%, compared to July's 69%. This makes July feel more comfortable for outdoor activities, while April’s dampness can create a chillier environment. For a more detailed look at April's weather, you can visit Saint Helier weather in April.
In comparing the weather between May and July, July typically offers warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 27°C (80°F), while May has cooler temperatures that range from a low of 7°C (46°F) to a high of 20°C (69°F). Although July experiences slightly less precipitation at 47 mm (1.9 in) over 9 days compared to May's 63 mm (2.5 in) over 10 days, it is important to note that July's humidity is lower at 69%, compared to May's 80%. Overall, July tends to provide more pleasant and warmer weather, making it a favorable time for outdoor activities. For more detailed information on May's weather, check out Saint Helier weather in May.
In June, temperatures ranged from a minimum of 11°C (53°F) to a maximum of 24°C (76°F), with an average of 15°C (60°F). This month saw more precipitation, totaling 71 mm (2.8 in) over 10 days, and higher humidity at 80%. In contrast, July experienced warmer conditions, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 27°C (80°F), averaging 17°C (63°F). Although July still saw some rain, with 47 mm (1.9 in) across 9 days, the humidity decreased to 69%. Overall, July was warmer and slightly drier compared to June. For more details, you can check Saint Helier weather in June.
In comparing the weather between July and August, it is evident that August experiences slightly warmer average temperatures, with an average of 18°C (64°F) compared to July's 17°C (63°F). However, the maximum temperatures in August are slightly lower at 25°C (78°F) versus July's 27°C (80°F). Precipitation is also more prevalent in August, with 66 mm (2.6 in) falling over 13 days, as opposed to July's 47 mm (1.9 in) over 9 days. Humidity levels increase marginally from 69% in July to 73% in August. For a detailed outlook, check the Saint Helier weather in August.
In July, temperatures in Saint Helier typically range from a minimum of 14°C (58°F) to a maximum of 27°C (80°F), resulting in an average of 17°C (63°F). The month sees approximately 47 mm (1.9 in) of precipitation over about 9 days, with humidity levels at 69%. In contrast, September experiences slightly cooler temperatures, with a minimum of 12°C (54°F) and a maximum of 23°C (75°F), while still maintaining the same average temperature of 17°C (63°F). However, the month is wetter, receiving around 82 mm (3.2 in) of rainfall across 11 days, along with increased humidity at 79%. For more details, check out Saint Helier weather in September.
In comparing July and October weather, one can observe significant differences in temperature and precipitation. July typically boasts warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 27°C (80°F), creating a comfortable summer feel. In contrast, October cools down considerably, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 20°C (69°F), reflecting the transition into autumn. Additionally, October experiences much higher rainfall, accumulating 157 mm (6.2 inches) over 19 days compared to July's 47 mm (1.9 inches) over just 9 days. This increased precipitation, coupled with higher humidity at 89%, contributes to a distinctly different atmosphere in October. For more detailed information, you can check Saint Helier weather in October.
In July, the weather tends to be warmer, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 27°C (80°F) and an average of 17°C (63°F). Precipitation is relatively low at 47 mm (1.9 in) over about 9 days, and the humidity is moderate at 69%. In contrast, November brings cooler temperatures, with a minimum of 5°C (41°F), an average of 12°C (53°F), and a maximum of 17°C (62°F). Rainfall increases significantly to 125 mm (4.9 in) across 18 days, contributing to a much higher humidity level of 92%. For more details on the weather patterns in November, you can check Saint Helier weather in November.
When comparing the weather in July and December, notable differences emerge. July typically enjoys warmer temperatures, with averages around 17°C (63°F) and a maximum reaching 27°C (80°F), while December sees much cooler averages of 10°C (50°F) and a maximum of just 14°C (57°F). Precipitation patterns also contrast sharply; July experiences a moderate 47 mm (1.9 in) over 9 days, whereas December is much wetter, with 185 mm (7.3 in) falling over 22 days. Additionally, humidity levels are significantly higher in December at 92%, compared to July's 69%. For more detailed information about December weather, visit Saint Helier weather in December.
In July, Saint Helier basks in a delightful blend of warm temperatures and increased humidity, offering a refreshing contrast to the cooler months of the year. With maximum temperatures reaching a pleasant 27°C, days are perfect for outdoor activities, while the average temperature of 17°C ensures comfortable evenings. Unlike the rainier months, July experiences only a handful of wet days, with a total precipitation of 47 mm, allowing ample opportunity to enjoy the sunny skies. This vibrant summer month invites both residents and visitors to embrace the warmth and charm of the island. For a deeper dive into the patterns of weather throughout the year, explore Saint Helier Climate.