Last updated: March 17, 2025
In Caernarfon, United Kingdom, the weather in October presents a dynamic shift with temperatures ranging from a chilly -2°C (29°F) at night to a pleasant 22°C (71°F) during the day, yielding an average of 11°C (53°F). The month experiences significant precipitation, with a total of 128 mm (5.1 in) falling over 18 days, resulting in a notably high humidity level of 90%. This combination of cooler temperatures and frequent rain invites both lush landscapes and the charm typical of an autumn in North Wales.
In October, Caernarfon experiences a notable shift as temperatures begin to cool following the warmth of summer. With a minimum of -2°C (29°F) and a maximum reaching 22°C (71°F), the month introduces brisk mornings and mild afternoons. The average temperature of 11°C (53°F) reflects a transition into the autumn chill, yet the lingering warmth of the previous months allows for enjoyable days outdoors. As October progresses, the crisp air hints at the coming winter, making it a perfect time to enjoy the vibrant shades of autumn foliage around this charming Welsh town. Overall, October signifies a beautiful blend of cooler temperatures while still offering a pleasant respite before the colder months ahead.
October in Caernarfon, United Kingdom, marks a notable increase in precipitation, with average rainfall reaching 128 mm (5.1 in) over 18 days. This trend highlights a significant shift from the drier summer months, emphasizing the onset of autumn as the region experiences its wettest month before winter. Comparatively, October stands out not only for its high precipitation but also for its consistent frequency of rain, as it ties closely with November’s average of 111 mm across 19 days. As the October skies open up, residents and visitors alike should prepare for the characteristic drizzle, heralding the change of seasons in this picturesque part of the UK.
As autumn settles in Caernarfon, October brings a notable increase in humidity, rising to 90%, the highest point of the year. This spike marks a shift from the previous months, as summer’s drier conditions give way to the wetter climate of fall. Notably, September’s humidity, at 85%, is significantly lower than October’s, indicating the transitioning weather patterns. Following October, humidity remains high through November, peaking at 91%, which reflects the typical dampness that characterizes the region as winter approaches. Overall, Caernarfon's humidity is at its highest during the late autumn and winter months, hinting at the area's lush, green landscapes that thrive in such moisture.
As October arrives in Caernarfon, the UV Index dips to 4, placing it in the moderate exposure category. This slight decrease reflects the transition into autumn, following a peak of 8 in the summer months of June and July. With a burn time reducing to 30 minutes, it's wise to remain mindful of sun exposure, especially during clearer days. As daylight begins to wane, skin protection remains essential, reminding us of the variability in UV levels throughout the year. For more detailed insights on UV exposure, please visit Caernarfon UV Index.
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As autumn settles in Caernarfon, October brings a modest but delightful 238 hours of sunshine, marking a gentle decline from the vibrant summer days of July and August. While this fall transition sees a dip in daylight compared to the peak of over 400 hours, it still stands stronger than the wintry months ahead. The sunshine in October offers a golden opportunity to appreciate the scenic beauty of the region, as the last vestiges of warmth mingle with the crisp air. The gradual reduction in sunlight from the bright spring and summer months sets a serene tone, inviting exploration of Caernarfon's rich history and stunning landscapes before the darker days of November and December arrive.
As October rolls in, Caernarfon, United Kingdom, typically experiences a drop in sunny weather, with only a 17% chance of sunshine. This is a notable decline compared to the warmer months, where April peaks at 46% and July sees a 35% likelihood of sun. The shift to autumn brings with it a more overcast sky, as September (20%) and August (24%) also struggle to hold onto summer's lingering warmth. With the recent trend illustrating a steady decline in sunlight from the start of autumn through to winter, it's clear that October in Caernarfon is more about cozy indoor activities than basking in the sun.
In October, daylight in Caernarfon, United Kingdom, begins to wane as the autumn season establishes itself. After enjoying up to 16 hours of sunlight in the peak summer months of June and July, residents now experience a reduction to just 10 hours of daylight. This shift marks a noticeable decline compared to the 12 hours seen in September, signaling the gradual retreat of summer's light. As the year progresses toward winter, daylight hours will continue to diminish, with November bringing a mere 8 hours and December even less. The trend reflects the natural rhythm of the seasons, inviting the community to embrace the cozy charm of autumn and prepare for the shorter days ahead.
As October unfolds in Caernarfon, the winds begin to gain strength, with an average speed of 5.5 m/s (12 mph). This notable increase marks a shift from the gentler breezes of the summer months, where wind speeds averaged around 3.8 m/s (8 mph) in both July and August. Moving into autumn, October's winds set the stage for a more dynamic atmosphere, surpassing the previous month's average of 3.3 m/s (7 mph) and aligning closely with the winter months ahead. With an active wind pattern re-emerging, October in Caernarfon offers a brisk reminder of the seasonal change, heralding the arrival of colder days and invigorating coastal gales.
The weather in Caernarfon changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Caernarfon and find detailed weather information for every month.
In October, the weather tends to be milder with average temperatures ranging from a chilly -2°C (29°F) at night to a pleasant 22°C (71°F) during the day. The month sees about 128 mm of precipitation over approximately 18 days, accompanied by high humidity levels at around 90%. In contrast, January brings cooler conditions, with temperatures dipping slightly lower, averaging -3°C (27°F) at night and reaching a maximum of 14°C (57°F) during the day. While the month experiences less rainfall, totaling around 77 mm across 13 days, the humidity remains similarly high at 89%. Overall, October is generally warmer and wetter compared to the cooler, drier January. For more detailed information, check out Caernarfon weather in January.
When comparing the weather in October and February, October generally presents milder temperatures, with averages reaching up to 11°C (53°F) compared to February's average of 6°C (44°F). Both months experience chilly nights, but February tends to be slightly colder, with a minimum recorded temperature of -4°C (26°F) versus October's minimum of -2°C (29°F). Precipitation levels are quite comparable, with October receiving 128 mm (5.1 in) over 18 days, while February sees 103 mm (4.1 in) over 16 days. Humidity levels remain high in both months, with October at 90% and February slightly lower at 88%. For more detailed insights on February weather, you can explore Caernarfon weather in February.
When comparing the weather in October and March, we see some notable differences. October tends to be milder, with average temperatures around 11°C (53°F) and a maximum of 22°C (71°F), while March is cooler, averaging 7°C (45°F) and reaching a maximum of 18°C (65°F). Both months experience significant precipitation, with October receiving 128 mm (5.1 in) compared to March's 104 mm (4.1 in), although both months have precipitation on approximately 18 days. Humidity is slightly higher in October at 90%, while March maintains a comfortable 86%. For a more detailed look at the weather specifics in March, check out Caernarfon weather in March.
When comparing the weather in October and April, we observe some notable differences. October generally features a wider temperature range, with a minimum of -2°C (29°F) and an average of 11°C (53°F), peaking at 22°C (71°F). It tends to be wetter during this month, with 128 mm (5.1 in) of precipitation spread over 18 days and higher humidity at 90%.
In contrast, April has milder temperatures, with a minimum of -1°C (31°F) and an average of 9°C (48°F), reaching a similar maximum of 22°C (72°F). The month is much drier, receiving only 55 mm (2.2 in) of precipitation over 11 days, and humidity is slightly lower at 84%. For more details, you can check the Caernarfon weather in April.
October and May present contrasting weather profiles. October experiences cooler temperatures with minimums dropping to -2°C (29°F) and an average of 11°C (53°F), while May starts off slightly warmer with minimum temperatures around 0°C (32°F) and an average of 12°C (53°F). The maximum temperatures in October reach up to 22°C (71°F), whereas May can see highs of 28°C (82°F). Precipitation is more frequent in October, with 128 mm (5.1 in) over 18 days, compared to May's 71 mm (2.8 in) across just 12 days. Additionally, October's higher humidity at 90% contrasts with May's relatively lower 79% humidity, contributing to a more comfortable feel during the latter month. For a deeper look into May weather patterns, visit Caernarfon weather in May.
When comparing October and June weather, October tends to be much cooler with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 22°C (71°F), averaging around 11°C (53°F). In contrast, June offers a warmer climate, with temperatures starting at 5°C (41°F) and reaching up to 29°C (84°F), averaging 15°C (59°F). Precipitation is also more frequent in October, with 128 mm (5.1 in) across 18 days, compared to June's 91 mm (3.6 in) over just 14 days. Additionally, October has a higher humidity at 90%, while June's humidity sits at a more comfortable 81%. For more detailed information, visit Caernarfon weather in June.
When comparing the weather between October and July, we see a significant contrast in temperatures and precipitation. In October, temperatures can drop as low as -2°C (29°F), with an average of 11°C (53°F) and a maximum of 22°C (71°F). This month also brings substantial rainfall, averaging 128 mm (5.1 in) over 18 days, along with high humidity at 90%. In contrast, July tends to be much warmer, with minimum temperatures around 7°C (45°F) and an average of 16°C (61°F), reaching a maximum of 29°C (85°F). Rainfall in July is lighter, averaging 82 mm (3.2 in) over 15 days, and humidity is comparatively lower at 78%. For a closer look at July's weather specifics, you can check Caernarfon weather in July.
When comparing the weather in October to that of August, it's evident that October tends to be much cooler. While August features a milder range of temperatures with a minimum of 8°C (46°F) and a maximum of 26°C (79°F), October's temperatures drop significantly, with a minimum of -2°C (29°F) and a maximum of 22°C (71°F). Additionally, October experiences higher average precipitation at 128 mm (5.1 in) over 18 days, compared to August's 105 mm (4.1 in) over 19 days. The humidity is also notably higher in October at 90%, compared to 79% in August, making the fall month feel quite a bit more damp and chilly. For more specific details about August, you can check Caernarfon weather in August.
In comparison to September, October experiences a drop in overall temperatures, with minimums plunging to -2°C (29°F) and averaging around 11°C (53°F), while September holds steadier temperatures with a minimum of 3°C (38°F) and an average of 14°C (57°F). October also brings increased precipitation, totaling 128 mm (5.1 in) over 18 days, compared to September's 98 mm (3.9 in) over 15 days. Humidity levels rise slightly in October to 90%, compared to September's 85%. These changes mark a transition into the cooler, wetter conditions typical of fall. For more detailed information, you can check Caernarfon weather in September.
October and November present a noticeable shift in weather patterns. October enjoys slightly warmer average temperatures, with a maximum of 22°C (71°F) compared to November's high of 15°C (60°F). However, November brings a closer minimum temperature, dropping to -1°C (31°F) from October's -2°C (29°F). Precipitation is somewhat reduced in November, totaling 111 mm (4.4 in) over 19 days, compared to October's 128 mm (5.1 in) over 18 days. Humidity remains consistently high in both months, with November at 91% and October at 90%. For a more detailed look at November's conditions, visit Caernarfon weather in November.
In October, temperatures in Caernarfon range from a chilly -2°C (29°F) at night to a pleasant 22°C (71°F) during the day, with an average of 11°C (53°F). The month sees quite a bit of rain, totaling 128 mm (5.1 in) over about 18 days, accompanied by high humidity at 90%. In contrast, December has slightly milder temperatures, with a minimum of -1°C (30°F), an average of 7°C (45°F), and a maximum of only 13°C (56°F). Precipitation remains consistent, at 129 mm (5.1 in) spread over 20 days, with humidity slightly lower at 89%. For a detailed look at December's weather, you can visit Caernarfon weather in December.
As October unfolds in Caernarfon, the weather takes a distinct turn, offering a unique blend of cool temperatures and increased precipitation compared to the warmer months of summer. With an average temperature dipping to a crisp 11°C (53°F) and nights potentially bringing chills as low as -2°C (29°F), the autumn season here is marked by a significant shift. Expect frequent rain, with approximately 18 days of precipitation contributing to a robust total of 128 mm (5.1 in). Combined with a high humidity level of 90%, October's weather creates a distinct, invigorating atmosphere that sets the stage for the transition into winter. For more detailed insights on how the weather evolves throughout the year, visit Caernarfon Climate.