January Weather in Dolgellau, United Kingdom

Last updated: March 17, 2025

In Dolgellau, United Kingdom, January brings a blend of chilly temperatures and increased precipitation, typical of winter in this picturesque region. The month sees maximum daytime highs reaching 13°C (56°F), while average temperatures hover around a brisk 5°C (42°F), dipping down to a chilly -3°C (26°F) at night. Rainfall is a frequent companion with about 105 mm (4.2 in) over 14 days, contributing to the lush landscape surrounding the area. With humidity levels at a substantial 89%, January in Dolgellau is marked by a damp yet serene atmosphere, perfect for those who appreciate the beauty of winter months.

January Temperature in Dolgellau

In Dolgellau, United Kingdom, January ushers in a crisp winter chill, with temperatures ranging from a brisk -3°C (26°F) at their lowest to a moderate 13°C (56°F) at their warmest. The average temperature hovers around 5°C (42°F), setting a scene of frosty landscapes and potential snow flurries. As the month progresses into February, temperatures dip slightly lower, yet a gradual warming trend becomes evident with averages rising to 6°C (43°F) and highs reaching 18°C (65°F) by the end of the month. This pattern continues into March, where the coldest lows of the season can be seen at -6°C (21°F), but admirable highs bring moments of unexpected warmth. Overall, January in Dolgellau serves as a transitional month; while it embraces the depths of winter, it hints at the early stirrings of spring just on the horizon.

January Weather in Dolgellau: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Dolgellau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414244485258615956514643
Data source: Temperature data for Dolgellau generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Dolgellau

In Dolgellau, the month of January marks the beginning of a wet winter, with an average precipitation of 105 mm (4.2 in) spread over approximately 14 days. This sets the stage for a generally rainy season, as February and March see significant increases, elevating the monthly totals to 145 mm and 138 mm, respectively. Notably, January's rainfall is a precursor to the wetter months ahead, underscoring a trend where precipitation peaks during the late autumn and winter months, often reaching over 160 mm by October. As the year progresses, the days of rainfall tend to rise, peaking in August and December, which suggests a pattern of sustained moisture that supports the lush landscapes of this charming region. The consistent rainfall throughout the early months is essential for maintaining the verdant beauty that Dolgellau is known for.

January Precipitation Trends in Dolgellau

The chart displays monthly precipitation patterns in Dolgellau, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec10514513858859691144130161138170
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Dolgellau

In January, Dolgellau experiences a high humidity level of 89%, setting the tone for a month often characterized by damp weather. As the year progresses into February, humidity slightly dips to 88%, maintaining a trend of elevated moisture in the air. By March, we see a further decline to 86%, hinting at a gradual shift as spring approaches. However, this decrease does not last long; April brings humidity down to 84%, and May sees it drop even further to 79%, showcasing a trend toward more comfortable conditions as temperatures rise. This pattern continues into the summer months, where July and August register at 78% and 79%, respectively, allowing locals to enjoy the milder weather. As we move towards autumn, humidity begins to climb again, reaching 85% in September and peaking at 91% in November, before settling back at 89% in December. This cyclical pattern illustrates the region's consistent high humidity throughout the year, particularly during the cold months, reinforcing Dolgellau's reputation for a moist coastal climate.

January Average Humidity in Dolgellau

This chart illustrates the average monthly humidity levels in Dolgellau, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Dolgellau

In January, the UV Index in Dolgellau, United Kingdom, registers a low level of 1, allowing for a comfortable burn time of 45 minutes under direct sunlight. As the months progress, the UV Index gradually rises, peaking at 8 during the summer months of June and July, when the burn time dramatically decreases to just 15 minutes. This pattern highlights the increasing intensity of UV radiation as the year transitions from winter to summer. By late spring, in May, the Index reaches a high level of 7, with a burn time of 25 minutes, making it essential to start considering sun protection. After experiencing the highest levels in the summer, the UV Index begins to taper off in the fall and winter, falling back to 1 in December. Understanding these trends is vital for planning outdoor activities safely throughout the year. For more details, you can visit the Dolgellau UV Index.

Maximum UV Index Levels in Dolgellau for January

The chart shows the monthly maximum UV Index (UVI) for Dolgellau in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Dolgellau January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Dolgellau

In Dolgellau, January greets residents with a modest 94 hours of sunshine, marking the month as one of the dimmest in the year. However, as winter gives way to spring, the sun begins to shine brighter, with February bringing an increase to 158 hours. By March, the daylight expands significantly to 225 hours, heralding the arrival of longer and warmer days. The trend continues into April, where sunshine hours soar to 330, reaching their peak in May at an impressive 411 hours. This sunny streak carries on through the summer months, with July and August offering 420 and 385 hours, respectively. As autumn approaches, sunshine starts to dwindle, tapering off to 239 hours in October, and further to 125 and 106 hours in November and December. The contrast between winter's dim light and the vibrant summer sunshine encapsulates the natural rhythm of Dolgellau's year, inviting both residents and visitors to embrace each season's unique charm.

Monthly Sunshine Duration in Dolgellau: January Highlighted

The January sunshine duration represents the total number of hours Dolgellau experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec94h158h225h330h411h402h420h385h313h239h125h106h
Data source: Dolgellau January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dolgellau During January

In Dolgellau, United Kingdom, the likelihood of sunny weather in January is relatively low, with a mere 17% chance of sun. This marks the beginning of a gradual increase in sunshine as the months progress. By February, the chances rise slightly to 20%, and by March, they reach 25%, hinting at the approach of spring. April brings a significant leap to 47%, showcasing the region's transition into sunnier days. Interestingly, the overall trend indicates a pattern of increasing sunshine from January through April, which then fluctuates in the subsequent months. While January may be a bit gloomy, the promise of brighter days is just around the corner.

Percentage of Sunny Days in January in Dolgellau

The chart illustrates the percentage of sunny days in Dolgellau throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Dolgellau experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%20%25%47%28%24%36%23%21%15%22%16%
Data source: Dolgellau January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dolgellau in January

In Dolgellau, United Kingdom, January marks the beginning of a gradual increase in daylight duration, with the month averaging about 8 hours of sunlight. As the seasons shift, February sees a welcome boost to 9 hours, signaling the retreat of winter's grip. By March, days grow even longer with 11 hours of daylight, creating a sense of optimism as spring approaches. This trend continues, peaking in June and July at an impressive 16 hours, showcasing the vibrant energy of summer. As autumn arrives, daylight begins to wane, with hours gradually dwindling to 12 in September and then dropping again to 8 hours by November. Ultimately, this annual rhythm of daylight not only shapes the landscape but also influences the moods and activities of the local community throughout the year.

Average Daylight Hours in Dolgellau for January

The chart illustrates the variation in daylight duration in Dolgellau throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 13m9h 52m11h 54m13h 59m15h 48m16h 46m16h 15m14h 36m12h 36m10h 32m8h 41m7h 41m
Data source: Dolgellau daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Dolgellau

In Dolgellau, United Kingdom, January ushers in a refreshing average wind speed of 4.0 m/s (9 mph), setting the tone for the year ahead. As we move into February, winds pick up slightly, reaching an average of 5.1 m/s (11 mph). This trend of fluctuating breezes continues through the early months, peaking in March before tapering off as spring approaches. Notably, April and June both report calmer conditions at 3.0 m/s (7 mph), showcasing a distinct contrast to the winter winds. As summer settles in, July experiences the year's lightest breezes at 2.5 m/s (5 mph), but the winds gain momentum again in the autumn months, notably October with 4.6 m/s (10 mph). The consistent push and pull of wind speeds throughout the seasons in Dolgellau reflects the dynamic weather patterns characteristic of this stunning region.

Average January Wind Speed in Dolgellau

The chart displays monthly wind speed patterns in Dolgellau, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.0 m/s5.14.43.03.63.02.53.42.94.63.94.4
Data source: Dolgellau January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Dolgellau Compares to Other Months

The weather in Dolgellau 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 Dolgellau and find detailed weather information for every month.

In comparing the weather patterns of January and February, we see a gradual shift in temperatures and precipitation. January experiences a minimum temperature of -3°C (26°F) and averages around 5°C (42°F), while February tends to be slightly colder at a minimum of -5°C (24°F) but averages a bit warmer at 6°C (43°F). Notably, February boasts a higher maximum temperature of 18°C (65°F) compared to January's 13°C (56°F). Regarding precipitation, February receives more rainfall than January, with 145 mm (5.7 in) over 17 days compared to January's 105 mm (4.2 in) over 14 days. Humidity levels remain similar, with January at 89% and February slightly lower at 88%. For a detailed look at February's weather, check out Dolgellau weather in February.

In comparison to January, March experiences slightly milder temperatures, with average highs reaching 18°C (65°F) compared to January's max of 13°C (56°F). However, March can start with chilly lows of -6°C (21°F), which is colder than January’s minimum of -3°C (26°F). Precipitation increases in March, totaling 138 mm (5.5 in) over 18 days, compared to January’s 105 mm (4.2 in) over 14 days, leading to a wetter early spring season. Despite the increase in rainfall, March maintains a slightly lower humidity level at 86% compared to January’s 89%, creating a difference in how the cool air feels. For more details on the weather in March, check out Dolgellau weather in March.

When comparing the weather in January and April, notable differences emerge in temperature and precipitation. January experiences a colder climate, with average temperatures ranging from a chilly -3°C (26°F) to a maximum of 13°C (56°F). In contrast, April sees a more pleasant average temperature of 9°C (48°F), peaking at a comfortable 22°C (72°F). Precipitation is also reduced in April, totaling 58 mm (2.3 in) over 12 days, compared to January's 105 mm (4.2 in) over 14 days. Additionally, humidity levels are slightly lower in April at 84%, compared to January's 89%. For more detailed insights into the weather specifics, you can check Dolgellau weather in April.

In January, the weather in Dolgellau is typically quite chilly, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F) and an average of around 5°C (42°F). The month experiences significant precipitation, totaling 105 mm (4.2 in) over approximately 14 days, coupled with high humidity levels of 89%. In contrast, May brings a much milder climate, with temperatures ranging from a minimum of 0°C (32°F) to a pleasant maximum of 27°C (80°F), resulting in an average temperature of 11°C (53°F). Precipitation decreases to 85 mm (3.3 in) over 13 days, and humidity also drops to 79%. This shift from the cold and damp conditions of January to the warmer, drier atmosphere of May is a welcome change for many. For more detailed insights, you can check Dolgellau weather in May.

In January, the weather is notably colder, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F) and an average of 5°C (42°F). The month experiences significant precipitation of 105 mm (4.2 in) over about 14 days, combined with high humidity at 89%. In contrast, June brings milder conditions, featuring a temperature range of 5°C (42°F) to 28°C (83°F) with an average of 14°C (58°F). Although rainfall is slightly lower at 96 mm (3.8 in), it occurs over a few more days (16 days) and with reduced humidity at 81%. For more detailed insights, check out Dolgellau weather in June.

In January, the weather in Dolgellau is notably colder, with temperatures ranging from a minimum of -3°C (26°F) to a maximum of 13°C (56°F), while July enjoys much milder conditions, with temperatures between 6°C (44°F) and 29°C (84°F). January also experiences higher humidity at 89%, contrasted with the drier July humidity of 78%. Precipitation levels are relatively similar, with January receiving 105 mm (4.2 in) and July slightly less at 91 mm (3.6 in), both spread across 14 days. For more details on the summer weather, check out Dolgellau weather in July.

January and August present stark contrasts in weather patterns. In January, temperatures can drop as low as -3°C (26°F) and average around 5°C (42°F), with maximum temperatures reaching 13°C (56°F). The month sees significant precipitation, totaling 105 mm (4.2 in) over 14 days, accompanied by high humidity levels of 89%. In contrast, August enjoys milder temperatures, with a minimum of 7°C (45°F) and an average temperature of 15°C (60°F), peaking at 27°C (80°F). While it experiences more rainfall, totaling 144 mm (5.7 in) over 20 days, the humidity is notably lower at 79%. For more specific insights into the summer climate, you can explore Dolgellau weather in August.

January and September present distinct weather patterns. In January, temperatures range from a cold minimum of -3°C (26°F) to a maximum of 13°C (56°F), with an average of 5°C (42°F). The month is characterized by high humidity at 89% and considerable precipitation, averaging 105 mm (4.2 inches) over 14 days. In contrast, September experiences a milder climate, with temperatures ranging from a minimum of 2°C (36°F) to a warmer maximum of 27°C (82°F) and an average of 13°C (56°F). Precipitation increases slightly to 130 mm (5.1 inches) over 16 days, with humidity remaining relatively low at 85%. For more details, check out Dolgellau weather in September.

January weather is characterized by colder temperatures, with a minimum of -3°C (26°F) and an average of 5°C (42°F), while October experiences a milder climate, featuring an average temperature of 11°C (52°F) and a maximum of 21°C (70°F). In terms of precipitation, October sees more rainfall at 161 mm (6.3 in) over 19 days compared to January’s 105 mm (4.2 in) over 14 days, though humidity remains relatively high, with January at 89% and October at 90%. For a more detailed look at October's climate, check out Dolgellau weather in October.

In comparison to January, November typically features milder temperatures, with a minimum of -1°C (30°F) and an average of 8°C (47°F), reaching a maximum of 15°C (59°F). This contrasts with January's chill, where temperatures drop to a minimum of -3°C (26°F) and average around 5°C (42°F). November also sees more precipitation, with 138 mm (5.4 in) over 19 days, compared to January's 105 mm (4.2 in) spread across 14 days. Humidity levels are slightly higher in November at 91%, compared to 89% in January. For a detailed look at the weather trends in November, you can check out Dolgellau weather in November.

When comparing the weather in January and December, both months experience similar cold temperatures, with January averaging slightly lower at 5°C (42°F) compared to December's average of 6°C (44°F). Notably, both months have the same minimum temperature of -3°C (26°F) and peak at 13°C (56°F). However, December tends to be wetter, receiving 170 mm (6.7 in) of precipitation over 20 days, while January sees less rainfall at 105 mm (4.2 in) across 14 days. Humidity levels remain constant at 89% for both months. For more details, you can refer to Dolgellau weather in December.

Compare Dolgellau's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Dolgellau

As winter envelops Dolgellau in January, the weather takes a notable turn with its cooler temperatures and higher humidity compared to other months. While the maximum temperatures barely reach a mild 13°C, the chilly lows can plunge to -3°C, creating a stark contrast that defines the season. With an average precipitation of 105 mm over 14 days, January is one of the wetter months, often shrouding the town in a blanket of rain. The damp atmosphere and frequent rainy days contribute to the region's characteristic lushness, making this time of year quite distinct. For a deeper understanding of what to expect throughout the year, check out Dolgellau Climate.