January Weather in Coleraine, United Kingdom

Last updated: March 17, 2025

In January, Coleraine, United Kingdom experiences a blend of cool temperatures and frequent rainfall. The maximum temperature reaches a mild 13°C (56°F), while the average settles around 7°C (45°F), dipping to a minimum of 2°C (36°F) during the chillier nights. This month is characterized by significant precipitation, totaling 109 mm (4.3 in) over 17 days, resulting in a humid atmosphere with 87% humidity. Visitors and residents alike can expect a damp and cool winter month, perfect for cozy indoor activities while embracing the charm of the Irish landscape.

January Temperature in Coleraine

In Coleraine, United Kingdom, January brings a chilly yet moderately temperate start to the year. With minimum temperatures hovering around 2°C (36°F) and peaking at 13°C (56°F), residents experience a mild average of 7°C (45°F). This month is characterized by a gradual increase in warmth compared to the frostier depths of winter, foreshadowing the slight rise in temperatures seen in February, where the range narrows slightly. As the months progress into late winter and early spring, we see consistent trends of gradual warming, hinting at the blossoming of spring flowers and the end of the cold snap. The overall pattern reflects a slow transition from winter's chill to the milder climes of early spring, making January a pivotal month in Coleraine's seasonal calendar.

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

The chart illustrates January temperature patterns in Coleraine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454444465054575856534946
Data source: Temperature data for Coleraine 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 Coleraine

January in Coleraine, United Kingdom, marks the start of the year with 109 mm (4.3 in) of precipitation over approximately 17 days. This sets the tone for a winter characterized by substantial rainfall, leading into February, which sees a slight uptick in both precipitation and rain days. Interestingly, as winter gives way to spring, the precipitation amount begins to fluctuate, with April experiencing a notable dip to 55 mm (2.2 in), paired with fewer rainy days (12). However, as summer approaches, the pattern shifts again, with August being the wettest month at 146 mm (5.7 in) and 20 rainy days. Overall, the data suggests a trend of wetter conditions in the latter months of the year, particularly from October through December, culminating in the peak rainfall of 166 mm (6.5 in) in December, making it a truly wet season in Coleraine.

January Precipitation Trends in Coleraine

The chart displays monthly precipitation patterns in Coleraine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1091321125573105110146117161156166
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Coleraine

In January, Coleraine, United Kingdom, experiences an impressive humidity level of 87%, setting the tone for the wet and misty atmosphere typical of winter in this coastal region. Throughout the month, humidity remains relatively stable, only slightly decreasing to 86% in February and March. As spring unfolds in April, the humidity dips ever so slightly to 85%, marking the driest month until summer. Interestingly, the humidity levels rise again during the warmer months, with July and August both returning to 86%. As autumn approaches, humidity climbs once more, peaking in November at 90% before settling back to 86% in December. This consistent trend of elevated humidity illustrates Coleraine's maritime climate, which fosters lush greenery but can also bring cooler, damp conditions year-round.

January Average Humidity in Coleraine

This chart illustrates the average monthly humidity levels in Coleraine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Coleraine

In January, Coleraine experiences a low UV Index of 1, which signifies minimal sun exposure risk, allowing for a comfortable burn time of 45 minutes before any skin damage occurs. As the month of February rolls in, the UV Index only slightly increases to 2, maintaining that low exposure category. However, a shift is noticeable by March, when the UV Index rises to 3, indicating a moderate exposure level and reducing the safe burn time to 30 minutes. This upward trend continues into April with a UV Index of 5, increasing the urgency for sun protection as the weather warms. The summer months see a marked peak; by June and July, the Index hits a significant 8, classified as very high, with a much shorter burn time of just 15 minutes. Following this summer intensity, an easing occurs in August with a drop to 6, and then back to moderate levels in September and October, where precaution remains essential but less urgent. As the year closes with November and December returning to the lower end of the spectrum (UV Indices of 2 and 1 respectively), the pattern highlights an important aspect of Coleraine's climate: a distinct seasonal variation in UV exposure. For more details on UV levels throughout the year, visit Coleraine UV Index.

Maximum UV Index Levels in Coleraine for January

The chart shows the monthly maximum UV Index (UVI) for Coleraine 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.
JanFebMarAprMayJunJulAugSepOctNovDec123568865321
Data source: Coleraine 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 Coleraine

In January, Coleraine, United Kingdom, experiences a modest 72 hours of sunshine, setting the stage for a gradual increase in daylight as the months progress. By February, the sun shines for 146 hours, hinting at the awakening of spring. This trend continues through March with 207 hours, and by April, there’s a significant leap to 319 hours, as the days grow longer and warmer. The peak of sunshine occurs in May with an impressive 405 hours, just before the summer months, when sunshine remains plentiful, albeit slightly less intense in June at 389 hours. This pattern maintains its appeal in July and August, providing 404 and 357 hours, respectively, before the sunshine begins to wane in the fall. As the year winds down, September offers 283 hours, closely followed by diminishing daylight in October at 224 hours. The final months of the year see a sharp decline, with November and December revealing just 117 and 81 hours of sunshine, reflecting the cozy embrace of winter.

Monthly Sunshine Duration in Coleraine: January Highlighted

The January sunshine duration represents the total number of hours Coleraine 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.
JanFebMarAprMayJunJulAugSepOctNovDec72h146h207h319h405h389h404h357h283h224h117h81h
Data source: Coleraine January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Coleraine During January

In January, Coleraine, United Kingdom, experiences a 23% chance of sunny weather, setting the stage for a winter month that leans more towards overcast than clear skies. As winter progresses into February, the likelihood of sunshine marginally increases to 25%, hinting at a slight uptick in favorable weather. Interestingly, the sunny trends falter in March, where the chances dip to 15%, reflecting the often unpredictable nature of early spring. As we transition into April and May, the sun begins to make a more significant return, with likelihoods rising to 43% and 36% respectively, showcasing a noticeable shift towards brighter days. This pattern suggests that while January may not boast abundant sunshine, there is a hopeful progression toward sunnier skies as spring approaches.

Percentage of Sunny Days in January in Coleraine

The chart illustrates the percentage of sunny days in Coleraine 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 Coleraine experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%25%15%43%36%22%24%20%23%16%16%14%
Data source: Coleraine January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Coleraine in January

In January, Coleraine, United Kingdom, experiences about 7 hours of daylight, marking the deep midwinter where the sun rises late and sets early. However, as the calendar turns to February, daylight begins to tease its way back, increasing to 9 hours. The trend continues upward, with March ushering in 11 hours, followed by a significant leap to 14 hours in April. The days grow even longer in May, reaching 16 hours, and June offers the peak of summer with an impressive 17 hours of daylight. As July rolls in, daylight begins its gradual descent, tapering to 16 hours, and further waning in August to 14 hours. The decline continues into autumn, with September offering 12 hours and 10 hours in October, before settling back to 8 hours in November and finally returning to 7 hours in December. This rhythmic ebb and flow of daylight not only defines the seasons but also sets the tone for the outdoor experiences and natural beauty that Coleraine has to offer throughout the year.

Average Daylight Hours in Coleraine for January

The chart illustrates the variation in daylight duration in Coleraine throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 49m9h 40m11h 53m14h 10m16h 11m17h 17m16h 41m14h 51m12h 39m10h 24m8h 21m7h 13m
Data source: Coleraine daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Coleraine

In Coleraine, January ushers in a brisk average wind speed of 7.8 m/s (17 mph), setting the stage for a month characterized by fresh gusts that invigorate the coastal landscape. As winter's chill persists, this wind speed is notably lower compared to the following month, February, which ramps up to 10.5 m/s (23 mph), marking it as the windiest of the year. The trend in spring reveals a gradual decline; March sees a slight drop to 7.5 m/s (17 mph), while April approaches a calmer 5.9 m/s (13 mph). This decrease continues into the summer months, eventually reaching its nadir in July with a gentle 3.8 m/s (8 mph). As the year progresses into autumn, the winds pick up again, especially in the transition to November, where they escalate to 9.3 m/s (21 mph). Overall, the January winds serve as a refreshing precursor to the shifting breezes that define Coleraine's dynamic climate throughout the year.

Average January Wind Speed in Coleraine

The chart displays monthly wind speed patterns in Coleraine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.8 m/s10.57.55.96.25.73.84.55.57.79.38.3
Data source: Coleraine January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Coleraine Compares to Other Months

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

When comparing the weather in January and February, we see some notable similarities and differences. In January, temperatures typically range from a minimum of 2°C (36°F) to a maximum of 13°C (56°F), with an average temperature of 7°C (45°F). The month experiences considerable rainfall, accumulating 109 mm (4.3 in) over 17 days, paired with a high humidity of 87%.

February, on the other hand, sees slightly cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 12°C (54°F), while still maintaining an average of 7°C (44°F). Precipitation increases in February to 132 mm (5.2 in) over 18 days, accompanied by a slightly lower humidity level of 86%. Overall, both months are relatively wet and cool, but February tends to be a bit wetter with marginally lower temperatures. For more detailed insights on February weather, check out Coleraine weather in February.

In January, the weather in Coleraine is generally milder, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (56°F), and an average temperature of 7°C (45°F). The month sees substantial precipitation at 109 mm (4.3 in) over 17 days, coupled with a high humidity of 87%. In contrast, March experiences slightly cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 12°C (54°F), while maintaining an average temperature of 7°C (45°F). Precipitation in March is slightly higher at 112 mm (4.4 in) over 18 days, with humidity remaining similar at 86%. For more detailed weather insights, visit Coleraine weather in March.

January weather in Coleraine is characterized by cooler temperatures, with an average of 7°C (45°F) and significant precipitation totaling 109 mm (4.3 in) over 17 days, resulting in a humid atmosphere with humidity levels around 87%. In contrast, April experiences a slight increase in average temperature to 8°C (47°F), while maintaining the same maximum temperature of 13°C (56°F). Precipitation is also reduced in April, with only 55 mm (2.2 in) over 12 days and slightly lower humidity at 85%. This transition marks a shift towards drier and slightly warmer conditions by the end of the winter season. For more details, check out Coleraine weather in April.

In January, temperatures are quite cool, with averages around 7°C (45°F) and a maximum of 13°C (56°F), while May brings warmer conditions with average temperatures reaching 10°C (50°F) and highs of 16°C (61°F). January experiences more precipitation, with 109 mm (4.3 in) over 17 days, whereas May sees a decrease in rainfall to 72 mm (2.9 in) across 13 days. Additionally, humidity is slightly higher in January at 87%, compared to 82% in May, making the latter feel a bit drier and more comfortable. For more details on May weather in Coleraine, you can check out Coleraine weather in May.

In January, the weather is notably colder, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (56°F). Precipitation is relatively high at 109 mm (4.3 in) over 17 days, coupled with high humidity levels of 87%. In contrast, June brings milder conditions, featuring an average temperature of 12°C (54°F), with lows of 8°C (47°F) and highs reaching 17°C (62°F). Rainfall in June is slightly lower at 105 mm (4.1 in) also over 17 days, and humidity is marginally reduced at 84%. For a more detailed look at June's weather, check out Coleraine weather in June.

January and July present contrasting weather conditions. In January, temperatures range from a chilly 2°C (36°F) to a mild 13°C (56°F), with an average of 7°C (45°F). The month is characterized by significant precipitation, totaling 109 mm (4.3 in) over 17 wet days, and humidity is quite high at 87%. In contrast, July sees a warmer climate, with temperatures varying from a minimum of 11°C (52°F) to a maximum of 19°C (67°F), resulting in an average of 14°C (57°F). Notably, July also has similar precipitation levels, with 110 mm (4.3 in) over the same number of days (17), and slightly lower humidity at 86%. For more details on the weather in July, visit Coleraine weather in July.

In January, the weather is significantly cooler, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (56°F) and an average of 7°C (45°F). The month also experiences substantial rainfall, with 109 mm (4.3 in) of precipitation over 17 days and high humidity at 87%. In contrast, August offers milder temperatures, beginning at 11°C (52°F) and reaching up to 18°C (66°F), with an average temperature of 14°C (58°F). While August has more rainfall at 146 mm (5.7 in) with precipitation occurring over 20 days, the humidity remains slightly lower at 86%. For a detailed look at August weather, visit Coleraine weather in August.

When comparing the weather in January and September, notable differences in temperature and precipitation patterns emerge. January boasts cooler temperatures, with a minimum of 2°C (36°F) and an average of 7°C (45°F), while September sees a milder range, starting with a minimum of 9°C (49°F) and an average of 14°C (57°F). Although January experiences less precipitation at 109 mm (4.3 in) compared to September's 117 mm (4.6 in), the latter has slightly more rainy days, totaling 20 compared to January's 17. Additionally, both months exhibit high humidity levels, with January at 87% and September at 88%. For more detailed insights into the weather patterns specific to September, you can visit Coleraine weather in September.

In January, the weather is typically cooler, with minimum temperatures around 2°C (36°F) and average highs reaching 13°C (56°F). It experiences a fair amount of precipitation, totaling 109 mm (4.3 in) over about 17 days, coupled with high humidity at 87%. On the other hand, October sees slightly milder temperatures, with a minimum of 5°C (42°F) and an average maximum of 16°C (62°F). However, it tends to be wetter, receiving 161 mm (6.3 in) of rainfall across 24 days and slightly higher humidity at 89%. For more details, you can check Coleraine weather in October.

In January, the weather is generally cool with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 13°C (56°F), accompanied by significant precipitation of 109 mm (4.3 in) over 17 days. The humidity levels are relatively high at 87%. In comparison, November offers slightly milder temperatures, with a minimum of 4°C (40°F) and a maximum of 14°C (58°F). However, it is wetter, receiving 156 mm (6.2 in) of rainfall over 23 days, along with even higher humidity at 90%. For more detailed insights into November weather, check out Coleraine weather in November.

In comparing the weather of January and December, both months share a similar minimum temperature of around 2°C (36°F), but January typically features a slightly cooler average temperature of 7°C (45°F) compared to December's 8°C (46°F). Precipitation is notably higher in December, totaling 166 mm (6.5 in) over 23 days, whereas January sees 109 mm (4.3 in) across 17 days, making December the wetter month. Humidity levels remain quite comparable, with January at 87% and December slightly lower at 86%. For more detailed information about December weather, you can visit Coleraine weather in December.

Compare Coleraine's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Coleraine

As January unfolds in Coleraine, the weather showcases the region's characteristic chill, with significantly lower temperatures compared to the milder months ahead. The cool air is accompanied by heightened humidity, creating a crisp atmosphere that feels even colder. With approximately half the month experiencing rain, it's a time when residents and visitors alike usually prepare for wet conditions, quite unlike the drier spells of summer. This blend of cool temperatures and frequent precipitation makes January a unique part of Coleraine's climate. For more detailed insights, check out Coleraine Climate.