Last updated: August 21, 2025
October in Saint Peter Port, Guernsey offers a charming yet unpredictable blend of weather. With a maximum temperature reaching 20°C (68°F) and an average hovering around 15°C (59°F), the month showcases the mildness of the season. However, as temperatures dip to a minimum of 9°C (48°F), visitors should prepare for cooler days. October is also marked by significant precipitation, accumulating to 144 mm (5.7 in) over 17 days, contributing to the island's lush landscapes. With an humidity level of 89%, the air feels crisp and fresh, perfectly encapsulating the essence of autumn by the sea.
In Saint Peter Port, Guernsey, October marks a delightful transition into autumn, with temperatures ranging from a mild 9°C (48°F) at night to a comfortable 20°C (68°F) during the day. These averages sit at 15°C (59°F), suggesting a refreshing warmth that is perfect for outdoor explorations. Compared to the warmer summer months, October's temperatures offer a crispness that enhances the island's natural beauty, making it an ideal time for walks along the coast and vibrant fall scenery. As the year progresses towards winter, the temperatures start to cool down, but October still retains a pleasant charm, inviting both locals and visitors to embrace the season's change.
In October, Saint Peter Port experiences a notable surge in precipitation, with an impressive 144 mm (5.7 in) of rainfall over 17 days. This marks a significant increase compared to the previous months, where average precipitation ranged from 34 mm in April to 63 mm in September. As autumn sets in, the frequency of rainy days rises, reflecting a shift towards damper weather patterns. The month stands out not only for its higher rainfall but also hints at the approaching winter, with November and December continuing this trend as they both boast substantial precipitation amounts. The rich autumnal showers contribute to the lush landscapes of Guernsey, reminding residents and visitors alike of the island's vibrant natural beauty.
October brings a notable increase in humidity to Saint Peter Port, Guernsey, soaring back to 89%. This rise marks a significant shift from the drier summer months, particularly July, where humidity plummeted to a refreshing 63%. As autumn unfolds, the air becomes heavier and more saturated, reminiscent of the wetter months of November and December, which maintain similar high humidity levels of 90%. Furthermore, October significantly contrasts with the milder spring months, like April and May, when humidity hovered around 84% and 81%, respectively. This trend showcases the island's transition into a more damp season, enriching its characteristic charm as nature prepares for winter.
In October, the UV Index in Saint Peter Port, Guernsey stands at 4, placing it in the moderate exposure category with a burn time of 30 minutes. This follows a trend of gradually declining UV levels as autumn progresses, marking a noticeable shift from the very high intensities observed in the summer months. Compared to the peak months of June and July, when protective measures were paramount due to UV Index levels of 9 and 8, respectively, October invites a more relaxed outdoor experience. Still, it’s essential to remain vigilant and protect your skin, as the sun can still pose a risk. To keep track of the UV levels throughout the year, visit Saint Peter Port UV Index for updated information.
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As October unfolds in Saint Peter Port, Guernsey, the island embraces a significant shift in sunlight, basking in approximately 270 hours of sunshine. While this marks a decrease from the vibrant summer months, where July peaked at 436 hours, it still showcases the mild allure of autumn. The transition from the sun-drenched days of June and July to the cooler, more subdued October highlights a gradual waning of daylight, reflecting the island's seasonal rhythm. Indeed, with October’s hours nestling comfortably between the plentiful days of previous months and the dimming November, the charm of fall in Guernsey is both apparent and inviting, beckoning residents and visitors alike to enjoy the crisp air and golden hues of the season.
In Saint Peter Port, Guernsey, the likelihood of sunny weather in October sits at around 36%, which marks a slight decline from the brighter days of spring and summer. After an impressive 62% chance of sunshine in April, the sun's presence wanes through the latter months, yet remains relatively stable compared to September's 43%. While October lacks the consistent warmth of the preceding months, it still offers more opportunities for sunshine than the colder months that follow, such as November at 29%. This trend highlights a transitional period in the weather, where cooler breezes replace summer's heat, yet still gift residents a chance to enjoy the autumn sun amidst the changing scenery.
In October, Saint Peter Port, Guernsey experiences a descent into shorter days, with approximately 10 hours of daylight—a notable decrease compared to the longer, sunlit days of summer. This trend marks a shift from the peak of 16 hours in June, gradually tapering down as autumn unfolds. Following the vibrant month of September, where daylight lingered for 12 hours, October serves as a transition into the cooler months, providing a gentle reminder of nature's rhythm. As daylight diminishes further, the island prepares for the cozy evenings and longer nights of November and December, which will bring only 9 and 8 hours of daylight, respectively.
As October rolls into Saint Peter Port, Guernsey, the lingering warmth of early autumn meets a refreshing increase in wind speeds, averaging 8.2 m/s (18 mph). This marks a notable rise from the calms of summer, where June recorded its lowest winds at 4.6 m/s (10 mph), and continues to be more vigorous than the preceding months. With a steady gust, October stands out as a transition period, bridging the gentle breezes of late summer to the more staid winds expected in November and December. As the leaves begin to turn, these winds bring a bracing energy, making for invigorating walks along the harbor and a reminder of nature's rhythmic shifts.
Weather in Saint Peter Port varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Saint Peter Port, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January exhibit notable differences in weather patterns. In October, temperatures range from a minimum of 9°C (48°F) to a maximum of 20°C (68°F), with an average of 15°C (59°F). The month is characterized by higher precipitation, totaling 144 mm (5.7 in) over 17 days, while humidity remains consistently high at 89%. In contrast, January is colder, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 14°C (57°F), and an average of 9°C (49°F). Precipitation is also lower in January, at 94 mm (3.7 in) across 14 days, yet the humidity persists at 89%. For a detailed look at January weather patterns, you can visit Saint Peter Port weather in January.
October and February present distinct weather patterns, highlighting the transition from autumn to winter. In October, temperatures range from a minimum of 9°C (48°F) to a maximum of 20°C (68°F), with an average of 15°C (59°F). The month sees considerable precipitation, totaling 144 mm (5.7 in) over 17 days, coupled with high humidity at 89%. In contrast, February is colder, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 13°C (56°F) and an average of 9°C (48°F). Precipitation is lower in February at 86 mm (3.4 in) across 16 days, while humidity remains slightly lower at 88%. For a more detailed look at February's weather, check out Saint Peter Port weather in February.
When comparing the weather in October and March, October tends to be warmer and wetter than March. October has an average temperature of 15°C (59°F), with a minimum of 9°C (48°F) and a maximum of 20°C (68°F). In contrast, March experiences cooler temperatures, averaging 9°C (49°F), with a minimum of 0°C (32°F) and a maximum of 13°C (55°F). Additionally, October sees significantly more precipitation, with 144 mm (5.7 in) over 17 days, compared to March's 73 mm (2.9 in) over 15 days. Despite this, the humidity levels are quite similar, with October at 89% and March at 85%. For more details, you can visit Saint Peter Port weather in March.
In comparing the weather between October and April, notable differences emerge. October tends to be milder, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 20°C (68°F), while April is cooler, with temperatures varying from 5°C (41°F) to a maximum of 15°C (59°F). Additionally, October experiences significantly higher precipitation, totaling 144 mm (5.7 in) over 17 days, compared to just 34 mm (1.3 in) over 8 days in April. The humidity levels are also slightly higher in October at 89% compared to April's 84%. For those interested in exploring more about temperature and conditions during this spring month, visit Saint Peter Port weather in April.
In comparing the weather between October and May, October tends to be warmer with average temperatures reaching 15°C (59°F), while May has a slightly lower average of 12°C (54°F). October also experiences higher maximum temperatures, peaking at 20°C (68°F) compared to May's maximum of 18°C (65°F). However, October is much wetter, with 144 mm (5.7 in) of precipitation over 17 days, in stark contrast to May's 55 mm (2.2 in) over just 8 days. Humidity levels are higher in October at 89%, compared to 81% in May, indicating a more humid feel during the autumn month. For those looking for detailed weather information specific to May, check out Saint Peter Port weather in May.
When comparing the weather in October and June, we see notable differences in temperature and precipitation. October experiences a broader temperature range, with minimums around 9°C (48°F) and maximums reaching up to 20°C (68°F), while June is slightly warmer with a range from 11°C (53°F) to a maximum of 19°C (67°F). Additionally, October tends to be much wetter, receiving 144 mm (5.7 in) of precipitation over 17 days, compared to June’s more manageable 59 mm (2.3 in) across just 8 days. The humidity also varies, sitting higher in October at 89% compared to June’s more comfortable 77%. For more details on the weather in June, you can check out Saint Peter Port weather in June.
When comparing the weather in October and July, it's evident that October tends to be cooler and wetter. In October, temperatures range from a minimum of 9°C (48°F) to a maximum of 20°C (68°F), with an average temperature of 15°C (59°F). This month also sees significant precipitation, averaging 144 mm (5.7 in) over approximately 17 days and high humidity at 89%. In contrast, July offers a milder climate, with temperatures fluctuating between 14°C (57°F) and 21°C (70°F), averaging 16°C (62°F). The precipitation in July is much lower, at just 37 mm (1.5 in) over about 7 days, and the humidity is comparatively comfortable at 63%. For a detailed look at July weather, you can check this link: Saint Peter Port weather in July.
In comparing the weather between October and August, October tends to be considerably cooler and wetter. While August enjoys a milder range of temperatures with a minimum of 14°C (57°F) and a maximum of 22°C (72°F), October's temperatures drop to a minimum of 9°C (48°F) and max out at 20°C (68°F), with an average temperature of 15°C (59°F). Additionally, October experiences significantly higher precipitation, with 144 mm (5.7 in) falling over 17 days, compared to August's 50 mm (2.0 in) over just 9 days. The humidity is also higher in October at 89%, compared to 71% in August. For those interested in more details, you can check the specific weather for August here: Saint Peter Port weather in August.
In comparing the weather of October to that of September, we can see a notable shift toward cooler temperatures and increased precipitation. October experiences lower minimum temperatures, with a minimum of 9°C (48°F) compared to September's 12°C (54°F), and the average temperature drops from 17°C (62°F) in September to 15°C (59°F) in October. Additionally, October is much wetter, receiving 144 mm (5.7 in) of precipitation over 17 days, while September has considerably less rain at 63 mm (2.5 in) over just 9 days. Humidity also rises in October to 89%, up from September's 76%, contributing to a more damp and cooler atmosphere overall. For more detailed information on September weather, you can check Saint Peter Port weather in September.
In comparing the weather between October and November, October tends to be slightly warmer with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 20°C (68°F), while November sees cooler temperatures with a minimum of 6°C (43°F) and a maximum of 17°C (63°F). Precipitation levels are also noteworthy; October experiences 144 mm (5.7 in) spread over 17 days, while November records 126 mm (5.0 in) with rainfall occurring on 18 days. Humidity levels remain high in both months, with October at 89% and November at 90%. For a detailed look at November's weather, you can visit Saint Peter Port weather in November.
In October, the weather typically features milder temperatures, with averages around 15°C (59°F) and a maximum of 20°C (68°F), while the minimum dips to 9°C (48°F). The month experiences substantial rainfall, averaging 144 mm (5.7 in) over 17 days, and humidity levels hover at 89%. In contrast, December brings cooler temperatures, with an average of 11°C (51°F), peaking at 14°C (58°F), and a minimum of 5°C (41°F). While December sees slightly higher precipitation at 163 mm (6.4 in) spread across 21 days, the humidity remains comparable at 90%. For more detailed weather information, check out Saint Peter Port weather in December.
As October unfolds in Saint Peter Port, the weather presents a distinct shift from the milder months preceding it. With temperatures averaging around 15°C (59°F), the crisp air signals the onset of autumn, making it significantly cooler than the summer warmth. Increased precipitation, totaling 144 mm over about half of the month, adds a touch of drama to the skies, leading to more frequent rain showers. Humidity hovers at a notable 89%, creating a dampness that deepens the rich hues of the fall foliage. This blend of cooler temperatures and variable weather marks October as a transitional period, paving the way for the cozy atmosphere of winter. For more insights on seasonal patterns, check out Saint Peter Port Climate.