Last updated: August 21, 2025
Experience the charm of Saint Peter Port, Guernsey in July, where the weather is pleasantly mild and inviting. With maximum temperatures reaching up to 21°C (70°F) and an average of 16°C (62°F), outdoor activities beckon under a temperate sun. The evenings cool off slightly, with minimum temperatures settling around 14°C (57°F), perfect for enjoying the coastal breeze. Although July sees about 37 mm (1.5 in) of rain spread over 7 days, the humidity level remains a comfortable 63%, ensuring that sun-soaked days do not become overly humid. Embrace the summer allure of this picturesque port town!
In July, Saint Peter Port, Guernsey basks in pleasant warmth as temperatures reach their annual peak. With a minimum of 14°C (57°F) and an average of 16°C (62°F), residents and visitors can enjoy the summer sun in comfort. The maximum temperature, hitting 21°C (70°F), creates an inviting atmosphere perfect for outdoor activities and leisurely strolls along the picturesque coast. This month's mild weather stands in stark contrast to the cooler temperatures of winter, showcasing the island's transformation into a vibrant summer destination. As the sun shines brightly, July becomes an ideal time to explore Guernsey's stunning landscapes and enjoy its rich maritime culture.
In July, Saint Peter Port, Guernsey experiences a noticeable drop in precipitation, recording an average of 37 mm (1.5 in) over just 7 days. This represents a significant decrease compared to the wetter months of spring, where precipitation was higher and more frequent. The mild summer weather typically leads to less rainfall, as evidenced by July's low totals, making it one of the driest months of the year. This trend continues into August, where rainfall increases slightly, but July stands out as a time when residents can often enjoy the outdoors with relatively dry and pleasant conditions.
In Saint Peter Port, Guernsey, July marks a notable shift in humidity levels, dropping to 63%. This decline follows a gradual decrease from the year's peak in January at 89%, creating a clear trend of diminishing humidity as summer approaches. By June, the humidity has already lowered to 77%, but July stands out as the most comfortable month, offering a reprieve from the more oppressive levels experienced during the winter months. As the season progresses, humidity levels begin to rise again in August, climbing back to 71%. This cyclical pattern highlights how the coastal climate of Guernsey provides a mix of refreshing summer days and the return of more humid conditions in the early fall.
July in Saint Peter Port, Guernsey, sees a UV Index of 8, placing it in the very high exposure category with a burn time of just 15 minutes. This marks a slight decrease from June's peak of 9, yet still indicates a robust sun intensity that should not be taken lightly. The trend through the summer months reveals increasing UV levels, with May and June also rated high to very high, emphasizing the importance of sun protection during these warmer periods. As the year progresses toward autumn, the UV Index gradually lowers, with significant drops in August and beyond. For detailed information on sun safety and UV levels year-round, visit Saint Peter Port UV Index.
UV Risk Categories
July stands out as a radiant gem in the sunshine calendar of Saint Peter Port, Guernsey, boasting 436 hours of sunlight that uniquely illuminate the summer charm of this picturesque harbor town. This peak in brightness follows a steady ascent from January’s modest 107 hours, as the days gradually lengthen with each passing month. Notably, both June and July present the highest levels of sunshine, highlighting a vibrant summer transition, while August sees a gentle decline to 396 hours, signaling the beginning of autumn's approach. This trend underscores the allure of Guernsey's sunny days, inviting visitors to bask in the warmth before the cooler months return.
In Saint Peter Port, Guernsey, the likelihood of sunny weather peaks during the summer months, with July boasting a 49% chance of sunshine. This marks a notable increase from the earlier spring months, where sun chances were lower, hovering around the 38% in March and climbing to 62% in April. Although July enjoys a good share of sunny days, it is slightly less than the vibrant month of April, suggesting that while summer is in full swing, the varied Guernsey climate might still bring occasional clouds. This trending rise for July reflects the overall seasonal pattern, where the chances of sunshine generally improve from the winter's 21% in January towards the sunnier summer, making it an appealing time for outdoor adventures and seaside relaxation.
In Saint Peter Port, Guernsey, the month of July witnesses a remarkable abundance of daylight, with approximately 15 hours of sunshine brightening the days. This duration reflects a continuation of the peak daylight experienced in June, which boasts the longest stretch at 16 hours. As summer progresses into August, daylight begins to taper off slightly to 14 hours, hinting at the impending shift towards shorter days as autumn approaches. Observing the trends throughout the year, it's fascinating to note how the daylight gradually increases from a mere 8 hours in January, peaking in mid-summer, before gently descending again into the darker months of winter. This rhythmic cycle of daylight not only marks the changing seasons but also shapes the vibrant life and activities in this charming coastal town.
In Saint Peter Port, Guernsey, the July wind brings a gentle respite, with average speeds of 6.0 m/s (13 mph). This marks a notable drop from the more boisterous months preceding it, particularly June, which experienced lower winds at just 4.6 m/s (10 mph). While July's breeze may seem mild compared to the powerful gusts of winter, like December’s 9.8 m/s (22 mph), it is a refreshing shift as summer unfolds. As the year progresses, a clear trend emerges: the wind speeds tend to peak in the colder months, with a dip during the height of summer, creating a comfortable environment perfect for outdoor activities and enjoying the scenic vistas of the coastline.
Weather in Saint Peter Port varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Saint Peter Port, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between July and January, it is evident that July is much warmer and drier. July boasts temperatures ranging from a minimum of 14°C (57°F) to a maximum of 21°C (70°F), with an average of 16°C (62°F) and only 37 mm (1.5 in) of precipitation over 7 days. In contrast, January experiences much cooler temperatures, with a minimum of 3°C (37°F) and a maximum of 14°C (57°F), averaging just 9°C (49°F). Additionally, January sees significantly higher precipitation at 94 mm (3.7 in) spread across 14 days, along with higher humidity at 89%. For a more detailed look at January weather, visit Saint Peter Port weather in January.
When comparing the weather in July and February, significant differences emerge. July typically boasts milder temperatures, with a minimum of 14°C (57°F) and a maximum of 21°C (70°F), making it a more pleasant month for outdoor activities. In contrast, February experiences much cooler temperatures, starting at a chilly 0°C (33°F) and peaking at just 13°C (56°F).
Precipitation levels also vary notably; July sees 37 mm (1.5 in) of rain over about seven days, while February has considerably higher rainfall at 86 mm (3.4 in) spread across 16 days. Furthermore, February tends to be more humid, with levels reaching 88%, compared to July's humidity of 63%. For a closer look at February weather specifics, you can check Saint Peter Port weather in February.
In comparing the weather between July and March, we see notable differences in temperature and precipitation patterns. July enjoys milder conditions with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 21°C (70°F), accompanied by relatively low precipitation of 37 mm (1.5 in) over about 7 days and a comfortable humidity level of 63%. In contrast, March is significantly cooler, with average temperatures sitting at 9°C (49°F), peaking at 13°C (55°F), and dipping to a chilly minimum of 0°C (32°F). Additionally, March experiences more rain, accumulating 73 mm (2.9 in) across 15 days, alongside higher humidity at 85%. For more specific insights about the weather in March, you can visit Saint Peter Port weather in March.
In comparing the weather of July and April, July boasts a significantly warmer climate with average temperatures reaching 16°C (62°F), while April's average lags behind at just 10°C (50°F). The maximum temperature in July can climb up to 21°C (70°F), a stark contrast to April’s peak of 15°C (59°F). Despite July's warmer conditions, it experiences slightly more precipitation at 37 mm (1.5 in) over 7 days compared to April's 34 mm (1.3 in) over 8 days. Additionally, April tends to be more humid, with levels at 84%, in contrast to July's 63% humidity. For more details on April weather, visit Saint Peter Port weather in April.
July’s weather is notably warmer than May's, with average temperatures reaching 16°C (62°F) compared to May's 12°C (54°F). While July enjoys a milder minimum temperature of 14°C (57°F), May experiences cooler nights with a minimum of 7°C (45°F). Precipitation levels are slightly lower in July, with 37 mm (1.5 in) falling over 7 days, compared to May's 55 mm (2.2 in) over 8 days. Additionally, humidity is lower in July at 63%, making it feel more comfortable than May's higher humidity level of 81%. For more detailed information, you can check Saint Peter Port weather in May.
In comparing the weather between June and July, July offers slightly warmer temperatures, with a minimum of 14°C and an average of 16°C, compared to June's minimum of 11°C and average of 14°C. The maximum temperatures also rise from 19°C in June to 21°C in July. However, July experiences less precipitation, with 37 mm over 7 days, while June has 59 mm across 8 days. Additionally, humidity levels are higher in June at 77%, contrasting with July's 63% humidity. For more detailed information, you can check Saint Peter Port weather in June.
In July, the weather in Saint Peter Port features a mild climate with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 21°C (70°F). The month sees about 37 mm (1.5 in) of precipitation over approximately 7 days and has a relative humidity of 63%. In contrast, August experiences slightly warmer temperatures, with an average of 17°C (63°F) and highs reaching up to 22°C (72°F). However, it also brings increased precipitation levels, totaling 50 mm (2.0 in) over 9 days, and higher humidity at 71%. For more detailed insights on the weather, check out Saint Peter Port weather in August.
In July, the weather typically features a mild temperature range with minimums around 14°C (57°F) and maximums reaching 21°C (70°F), while maintaining an average temperature of 16°C (62°F). The month experiences relatively low precipitation at 37 mm (1.5 in) over about 7 days and has a humidity level of 63%.
Conversely, September shows slightly cooler minimum temperatures at 12°C (54°F) but maintains a similar maximum of 21°C (71°F) and a higher average temperature of 17°C (62°F). This month also sees increased precipitation at 63 mm (2.5 in) occurring over 9 days, coupled with higher humidity levels at 76%. For more detailed insights into the weather, you can check Saint Peter Port weather in September.
In comparing the weather of July and October, there are some notable differences. July enjoys a milder climate, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 21°C (70°F), and an average of 16°C (62°F). It experiences relatively light precipitation of 37 mm (1.5 in) over just 7 days, accompanied by a humidity level of 63%. In contrast, October sees cooler temperatures, with a minimum of 9°C (48°F), an average of 15°C (59°F), and a maximum of 20°C (68°F). Rainfall significantly increases during this month, totaling 144 mm (5.7 in) over 17 days, while humidity rises to a higher 89%. For a more detailed view of October weather, you can visit Saint Peter Port weather in October.
July and November present contrasting weather patterns. In July, temperatures are generally milder, with averages ranging from a minimum of 14°C (57°F) to a maximum of 21°C (70°F), accompanied by relatively low precipitation of 37 mm (1.5 in) over about 7 days and moderate humidity at 63%. In stark contrast, November sees a significant drop in temperatures, with an average of 12°C (54°F) and maximums reaching only 17°C (63°F). The month also experiences a marked increase in rainfall, totaling 126 mm (5.0 in) across 18 days, contributing to high humidity levels of 90%. For a more detailed look at November weather specifics, visit Saint Peter Port weather in November.
In July, the weather is generally mild and pleasant, with average temperatures hovering around 16°C (62°F) and highs reaching up to 21°C (70°F). The month experiences relatively low precipitation at 37 mm (1.5 in) over about 7 days, and the humidity sits at a moderate 63%. In contrast, December presents a much cooler and wetter climate, with average temperatures dropping to 11°C (51°F) and maximums only reaching 14°C (58°F). During this month, rainfall increases significantly, totaling 163 mm (6.4 in) across 21 days, accompanied by a high humidity level of 90%. For more details on the specific weather conditions, you can explore Saint Peter Port weather in December.
July in Saint Peter Port brings a pleasant warmth, distinguishing itself from the cooler months with average temperatures that invite outdoor activities and exploration. With highs reaching a comfortable 21°C, the weather is ideal for enjoying the stunning coastal views. Although July sees some rainfall, with about 7 days experiencing precipitation, the total amount remains relatively low, allowing for ample sunshine amid occasional clouds. The 63% humidity adds a touch of warmth but is generally manageable, making this month one of the more enjoyable times to visit. For a deeper dive into the region’s weather patterns, check out Saint Peter Port Climate.