Last updated: March 17, 2025
January in Caernarfon, United Kingdom presents a cool and often damp start to the year. With maximum temperatures reaching 14°C (57°F) and an average of 6°C (43°F), the month can feel quite brisk, especially during chilly nights where temperatures can drop to a minimum of -3°C (27°F). Expect significant precipitation, totaling around 77 mm (3.0 in) across approximately 13 days, giving rise to a humid atmosphere with levels around 89%. Whether you're exploring the historic town or enjoying the stunning surroundings, be prepared for a mix of rain and cool temperatures as you experience January's unique charm in Caernarfon.
In January, Caernarfon, United Kingdom, experiences a chilly climate with a minimum temperature dipping to -3°C (27°F), and an average around 6°C (43°F). While the days can be brisk, temperatures can reach a mild 14°C (57°F), offering glimpses of warmth amidst the winter chill. Interestingly, as the month progresses into February, we see a slight drop in minimum temperatures to -4°C (26°F), though the average remains stable, and maximum temperatures can soar to 18°C (65°F). This pattern of moderate averages with fluctuating minimums and warmer highs continues into March, establishing a trend where winter's sting gives way to early hints of spring. Overall, January serves as a transitional month, setting the stage for the gradual warming that follows.
In January, Caernarfon experiences an average precipitation of 77 mm (3.0 in), falling over the course of 13 days. This sets the tone for the winter months, as rainfall tends to tapers off slightly in February but spikes again by March, reaching 104 mm (4.1 in) across 18 days. As spring approaches, the precipitation levels dip significantly in April to 55 mm (2.2 in), showcasing a pattern where January's wetness gives way to a brief respite before the wetter months return. The trend highlights a dynamic climate, with substantial rainfall returning by late summer and peaking in October at 128 mm (5.1 in), making winter and early spring quite distinct in their moisture profiles. Overall, January serves as an important indicator of the shifting weather patterns that shape Caernarfon's year, balancing between damp winter conditions and the incoming spring thaw.
In January, Caernarfon experiences a notably high humidity of 89%, setting the tone for the dampness characteristic of the winter months. As the year progresses into February, humidity slightly decreases to 88%, before gradually lowering further to 86% in March and 84% in April. This trend continues through the spring, with humidity dipping to 79% in May, reflecting more temperate conditions. The summer months see a slight rise, with June at 81% and July at 78%, before stabilizing in August at 79%. However, the onset of autumn brings a return to the moisture-laden air, peaking again with 90% in October and reaching 91% in November, before settling back to 89% in December. Overall, the data reveals a clear seasonal pattern, highlighting how humidity fluctuates throughout the year in this picturesque Welsh town.
In Caernarfon, January experiences a UV Index of 1, which falls into the low exposure category with a burn time of 45 minutes. This mild index reflects the winter months, where sun exposure poses minimal risk. As we move into February, the UV Index remains the same, ensuring that residents can venture outdoors with little concern for skin damage. However, a noticeable shift occurs in March, when the index rises to 4, signaling the onset of spring and a moderate increase in UV intensity. This trend continues into April and May, where the index peaks at 7 during late spring, requiring individuals to be more cautious with shorter burn times of just 25 minutes. The summer months bring even higher indices, reaching 8 in both June and July, indicating very high exposure levels that necessitate protective measures. As autumn approaches, UV levels gradually decline, highlighting a seasonal pattern of increasing exposure from winter to summer. For more detailed insights, check out the Caernarfon UV Index.
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In Caernarfon, January offers a modest 93 hours of sunshine, setting the stage for a gradual increase as winter deepens. By February, the days become brighter, with sunshine climbing to 162 hours, hinting at the approach of spring. March continues this uplifting trend, reaching 228 hours, while April truly bursts forth with 335 hours, capturing the essence of renewal. As summer approaches, the warmth peaks in July, boasting an impressive 421 hours of golden rays—this is the highlight of the year. Following summer's peak, sunshine begins to taper off, with August still robust at 383 hours, before falling to 315 hours in September. The months shift towards winter, descending to 238 hours in October, and plunging to the year’s lows of 126 hours in November and 109 hours in December. This rhythmic ebb and flow of sunlight illustrates Caernarfon’s seasonal transitions, from the crisp beginnings of the year to the lush brightness of summer, ultimately giving way to the tranquil slumber of winter.
In Caernarfon, United Kingdom, the likelihood of enjoying sunny weather in January stands at a modest 22%, a trend that aligns with the city's generally overcast winter months. As the year progresses into February and March, the chances of sunshine slightly increase to 25%, showcasing a subtle promise of brighter days ahead. However, it isn't until April that the sun begins to emerge more frequently, with a notable 46% likelihood, indicating a significant seasonal shift. This pattern highlights the gradual transition from the gloom of winter to the more cheerful and sunnier spring months, making January one of the cloudier periods for Caernarfon residents.
In January, daylight in Caernarfon, United Kingdom, offers a modest 8 hours, setting a quiet tone for the start of the year. As the winter months progress into February, there's a welcome increase to 9 hours, signaling the gradual return of light. By March, this trend continues, reaching 11 hours and bringing with it the first inklings of spring. The progression becomes even more pronounced in April, where daylight extends to 14 hours, creating longer, brighter days. This upward trajectory peaks in the summer months, with both June and July basking in a generous 16 hours of daylight. However, as autumn approaches, daylight begins to wane, dropping to 14 hours in August and tapering off to 12 hours by September. The cycle completes as daylight declines to 10 hours in October, and finally descends back to 8 hours in November, culminating in a mere 7 hours by December, as the year draws to a close and the seasons shift once more. This rhythm of fluctuating daylight not only highlights the changing seasons but also the rich tapestry of life in Caernarfon throughout the year.
January in Caernarfon ushers in a refreshing, brisk atmosphere, with an average wind speed of 4.6 m/s (10 mph). This gentle breeze sets the tone for the winter months, as it’s notably lighter than the gusts that follow in February, where winds pick up to 5.8 m/s (13 mph). Interestingly, March sees a slight dip, with winds averaging 5.2 m/s (12 mph), before the spring months bring a calmer feel, particularly in April when winds drop to 3.3 m/s (7 mph). This pattern reveals a trend of fluctuating wind speeds, peaking in the heart of winter before settling into more serene conditions. As the year progresses, the wind begins to dance again in October, suggesting a lively transition into the autumn months that sets Caernarfon’s dramatic coastal scenery in motion. Overall, January acts as a gentle prelude to a yearly wind symphony, where varied speeds invite both tranquility and adventure.
The weather in Caernarfon changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January'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 comparing the weather between January and February, we see some notable differences. January typically has slightly milder temperatures with an average of 6°C (43°F), peaking at 14°C (57°F), while February experiences a cooler minimum of -4°C (26°F) but can reach a maximum of 18°C (65°F). Precipitation is more pronounced in February, totaling 103 mm (4.1 in) over 16 days compared to January's 77 mm (3.0 in) across 13 days. Humidity remains relatively stable, with January at 89% and February slightly lower at 88%. For more detailed insights, check out Caernarfon weather in February.
In January, temperatures in Caernarfon typically range from a chilly minimum of -3°C (27°F) to an average of 6°C (43°F), peaking at a max of 14°C (57°F). The month experiences a relatively high humidity of 89% and sees about 77 mm (3.0 in) of precipitation over 13 days. In contrast, March brings slightly warmer conditions with a minimum temperature of -5°C (23°F), an average of 7°C (45°F), and a maximum of 18°C (65°F). However, March is wetter, with a total precipitation of 104 mm (4.1 in) spread over 18 days, and humidity levels remain close at 86%. For more details on March weather in this region, check Caernarfon weather in March.
In comparing the weather between January and April, January experiences colder temperatures, with a minimum of -3°C (27°F) and an average of 6°C (43°F), while April sees a milder minimum of -1°C (31°F) and a more comfortable average of 9°C (48°F). The maximum temperatures in January reach 14°C (57°F), but by April, they rise significantly to 22°C (72°F), indicating the arrival of spring warmth. Precipitation also differs, with January receiving 77 mm (3.0 in) over 13 days compared to April's 55 mm (2.2 in) across 11 days, suggesting that April is not only warmer but also somewhat drier. Humidity levels are slightly lower in April at 84%, compared to January's 89%. For more detailed information, you can check the Caernarfon weather in April.
In January, temperatures are quite cool, with an average of 6°C (43°F) and nighttime lows dropping to -3°C (27°F), while the maximum temperature reaches just 14°C (57°F). The month experiences a notable amount of precipitation, totaling 77 mm (3.0 in) over 13 days, and the humidity is relatively high at 89%. In contrast, May brings milder weather with temperatures ranging from a minimum of 0°C (32°F) to an average of 12°C (53°F) and highs reaching 28°C (82°F). Although May sees slightly less precipitation at 71 mm (2.8 in) over 12 days, the humidity is lower at 79%, making for a more pleasant overall experience. For more detailed insights, you can check Caernarfon weather in May.
In January, the weather is quite chilly, with temperatures ranging from a brisk -3°C (27°F) to a mild 14°C (57°F), averaging around 6°C (43°F). The month sees significant precipitation of 77 mm (3.0 in) spread over 13 days, accompanied by high humidity levels at 89%. In contrast, June brings a noticeable shift, with milder temperatures that range from 5°C (41°F) to a warm 29°C (84°F), averaging 15°C (59°F). Despite having slightly higher precipitation at 91 mm (3.6 in) over 14 days, the humidity decreases to 81%. This transition from the cold, damp January weather to the warmer and more vibrant June climate is striking. For more specific information on June weather, you can check out Caernarfon weather in June.
The contrast between January and July weather is quite striking. In January, temperatures range from a chilly -3°C (27°F) at night to a mild 14°C (57°F) during the day, with an average of 6°C (43°F). The month experiences significant precipitation, with 77 mm (3.0 in) over about 13 days and a high humidity level of 89%. In contrast, July offers a much warmer climate, where the temperature starts at a comfortable 7°C (45°F) and can reach up to 29°C (85°F), averaging around 16°C (61°F). Although July has slightly more precipitation at 82 mm (3.2 in) across 15 days, it enjoys lower humidity at 78%, making it a more pleasant month overall. For more detailed insights, you can check Caernarfon weather in July.
January weather is characterized by colder temperatures, with minimums dropping to -3°C (27°F) and average highs only reaching 14°C (57°F). The month sees about 77 mm (3.0 in) of precipitation spread across 13 days and maintains a high humidity level of 89%. In contrast, August offers milder conditions, with minimum temperatures of 8°C (46°F) and average highs of 26°C (79°F). However, it experiences slightly more precipitation at 105 mm (4.1 in) over 19 days, accompanied by a lower humidity of 79%. For a closer look at August weather specifically, you can check Caernarfon weather in August.
January and September showcase distinct weather patterns. In January, temperatures dip to a minimum of -3°C (27°F) and average around 6°C (43°F), with a maximum reaching 14°C (57°F). The month experiences considerable precipitation of 77 mm (3.0 in) across 13 days, along with high humidity levels at 89%. In contrast, September offers a milder climate with temperatures ranging from a minimum of 3°C (38°F) to an average of 14°C (57°F) and peaking at 27°C (81°F). Although it sees slightly more precipitation at 98 mm (3.9 in) over 15 days, the humidity is a touch lower at 85%. For more details on what to expect in September, check out Caernarfon weather in September.
In January, temperatures typically range from a minimum of -3°C (27°F) to a maximum of 14°C (57°F), with an average of around 6°C (43°F). The month sees about 77 mm (3.0 in) of precipitation over approximately 13 days, resulting in a humidity level of 89%. In contrast, October experiences milder conditions, with temperatures varying from -2°C (29°F) at the low end to a high of 22°C (71°F), averaging around 11°C (53°F). This month is also wetter, with 128 mm (5.1 in) of rain spread over 18 days, pushing humidity slightly higher to 90%. For a detailed look at the weather patterns in October, you can visit Caernarfon weather in October.
January and November each have their distinctive weather patterns, although they share some similarities. In January, temperatures typically range from a minimum of -3°C (27°F) to a maximum of 14°C (57°F), with an average of 6°C (43°F). This month experiences 77 mm (3.0 in) of precipitation over about 13 days, accompanied by high humidity at 89%.
In contrast, November has a slightly milder temperature range, with minimums around -1°C (31°F) and maximums reaching 15°C (60°F), averaging 9°C (48°F). However, it sees more precipitation at 111 mm (4.4 in) spread across 19 days, and humidity is marginally higher at 91%. Overall, November tends to be wetter and slightly warmer than January. For a more detailed look at November's weather, visit Caernarfon weather in November.
In January, the weather in Caernarfon tends to be slightly cooler than in December, with average temperatures ranging from a minimum of -3°C (27°F) to a maximum of 14°C (57°F), compared to December's range of -1°C (30°F) to 13°C (56°F). Additionally, January experiences less rainfall, totaling 77 mm (3.0 in) over 13 days, while December sees a higher precipitation of 129 mm (5.1 in) spread across 20 days. Despite these differences, both months have a consistent humidity level of 89%, creating a damp atmosphere typical of the region. For more detailed information on December weather, you can visit Caernarfon weather in December.
January in Caernarfon presents chilly temperatures that stand out from other months, with an average hovering around 6°C, often dipping to near freezing. This month is characterized by higher humidity levels, reaching 89%, which can make the cold feel even more biting. Frequent rainfall is also prevalent, with over half the month featuring precipitation, making it one of the wetter times of the year. In contrast to the milder summer months, January's weather encourages cozy indoor activities and holiday festivities, inviting both residents and visitors to embrace the season. For a deeper understanding of what to expect throughout the year, check out Caernarfon Climate.