Last updated: March 17, 2025
In January, Newcastle, Ireland, experiences a dynamic winter climate characterized by cool temperatures and frequent precipitation. The maximum temperature hovers around 13°C (56°F), while the average dips to a brisk 5°C (42°F), and lows can plunge to -5°C (24°F). This month sees an average of 55 mm (2.2 in) of rainfall spread across approximately 10 days, contributing to a generally humid atmosphere with levels reaching 85%. As the landscape transforms under the weight of winter, visitors can expect a fresh, invigorating setting perfect for exploring the beauty of Newcastle.
In Newcastle, Ireland, January is characterized by its chilly temperatures, with a minimum dipping to -5°C (24°F). The average temperature hovers around 5°C (42°F), while highs can reach a mild 13°C (56°F). This transitional month marks the tail end of winter, gradually giving way to slightly warmer conditions in February, where temperatures increase slightly. As spring approaches, a clear upward trend emerges: March brings a touch of warmth with averages moving to 7°C (44°F), and by April, highs flirt with 21°C (69°F). Overall, January sets the stage for a gradual transition towards the milder and more pleasant temperatures that follow in the early months of the year.
In January, Newcastle, Ireland experiences a moderate precipitation level of 55 mm (2.2 in), falling over an average of 10 days. This marks the beginning of the year with a relatively lower rainfall compared to the more oppressive months that follow. As winter transitions into spring, February and March see precipitation rise significantly, recording 79 mm (3.1 in) and 81 mm (3.2 in) respectively, and extending the number of rainy days. The trend continues as precipitation peaks in August at a notable 94 mm (3.7 in), with an increased frequency of rainy days throughout the summer months. Interestingly, January’s rainfall is the precursor to a wetter pattern, as the figures escalate towards the end of the year, highlighting the region's characteristic blend of beautiful yet unpredictable weather.
In January, Newcastle, Ireland, experiences a notable humidity level of 85%, setting the tone for the month. This atmospheric moisture isn't an outlier; throughout the winter months, humidity stays consistently high, peaking at 87% in October. It appears that the early months of the year transition smoothly into slightly drier conditions by May, where humidity dips to 83% before rising again in the summer. Interestingly, June through September maintains a steady 86% humidity level, reflecting the region's temperate maritime climate. As the year draws to a close, humidity begins to decrease slightly, returning to 84% in December. This steady rhythm underscores Newcastle's humid, yet relatively stable, weather patterns throughout the year.
In January, Newcastle, Ireland experiences a low UV Index of 1, indicating minimal sun exposure risk with an impressive burn time of 45 minutes. As winter fades and February approaches, the UV Index remains at 2, keeping exposure levels similarly low. However, as spring blossoms in March, a noticeable increase to a moderate UV Index of 4 is observed, shortening burn time to 30 minutes. This trend of rising UV levels continues through April, reaching an index of 5. As the warmer months arrive, May sees a jump to a high UV Index of 7, with burn time decreasing to 25 minutes—a clear indication to embrace sun protection. The most intense UV levels hit their peak in June and July at 8, where sun exposure becomes particularly hazardous, reducing burn time to just 15 minutes. Interestingly, this high UV Index begins to recede by August, settling back to 7, before transitioning to moderate levels in the fall. For a comprehensive guide on UV exposure in Newcastle, visit Newcastle UV Index.
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January in Newcastle, Ireland, begins the year with a modest 83 hours of sunshine, setting a cool and somewhat cloudy tone for the season. As winter transitions into spring, the city experiences a noticeable uplift, with February bringing 147 hours of brightening days. The trend continues through the early months, peaking significantly in April with 311 hours, as blooming flowers and longer daylight hours invigorate the landscape. By May, the sunlight reaches a brilliant 391 hours, marking the transition into summer, where the average hours of sunshine remain robust. Interestingly, June and July maintain a consistent 385 hours, creating ideal conditions for outdoor activities. As summer wanes into fall, sunshine hours gradually decline—the vibrant August still boasts 339 hours, but by October, they drop to 230 hours. This downward trend wraps up the year, with November and December plunging to 120 and 95 hours, respectively, ending the cycle on a quieter note. This transformation from the cold, crisp beginnings of January to the lively summer months illustrates Newcastle's dynamic seasonal shifts, inviting both local charm and scenic beauty.
In January, Newcastle, Ireland, sees a 24% chance of sunny weather, which sets a slightly brighter tone compared to the chillier months that precede it. This modest likelihood, while not overwhelming, hints at the gradual transition towards brighter days. Interestingly, the sunshine percentages dip in February and March, before leaping to a more optimistic 43% in April. This trend reflects a clear pattern: as winter recedes, sunshine becomes more prevalent, paving the way for the vibrant blooms of spring. So while January may not promise endless sunshine, it certainly marks the beginning of a hopeful shift toward more cheerful weather in the coming months.
In Newcastle, Ireland, January marks the start of the year with 8 hours of daylight, a modest amount that gradually increases as spring approaches. By February, daylight extends to 9 hours, and by March, it reaches 11 hours, heralding the longer days of the coming season. April brings a delightful leap to 14 hours, paving the way for May's vibrant 15-hour days. As summer peaks in June and July, residents enjoy the longest daylight hours at 16 hours, perfect for outdoor adventures. However, as autumn arrives, daylight begins to wane, dropping back to 14 hours in August and tapering down towards 10 hours in October. The cycle concludes with November and December, where daylight dwindles again to 8 hours and even lower to 7 hours, reminding us of the seasonal rhythm that shapes life in this charming coastal town.
In January, Newcastle, Ireland, experiences an average wind speed of 3.9 m/s (9 mph), marking the start of the year with a gentle breeze. As the winter progresses into February, the winds pick up noticeably, reaching 5.4 m/s (12 mph), bringing a more robust gust that hints at the changing season. This trend continues somewhat through March, with an average wind speed of 4.3 m/s (10 mph), before softening again in April to 3.1 m/s (7 mph). As spring unfolds, the winds remain relatively mild, fluctuating slightly but staying below 4 m/s until the summer months, where July sees the calmest period at 2.6 m/s (6 mph). Interestingly, wind speeds begin to rise again in the fall, reaching around 4.3 m/s (10 mph) in both October and December, suggesting that the year's end brings back the briskness that January initially promised. Overall, January winds kick off a seasonal pattern characterized by fluctuating speeds, hinting at nature's ebb and flow throughout the year.
The weather in Newcastle 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 Newcastle and find detailed weather information for every month.
January tends to be colder than February, with average temperatures ranging from a minimum of -5°C (24°F) to a maximum of 13°C (56°F), compared to February's slightly milder range of -3°C (27°F) to 16°C (60°F). Precipitation is also more prominent in February, with 79 mm (3.1 in) expected over 15 days, surpassing January's 55 mm (2.2 in) over 10 days. Both months exhibit high humidity levels, though February's humidity slightly increases to 86%, compared to January's 85%. For a more detailed look at the weather in February, you can check out Newcastle weather in February.
January and March showcase distinct differences in weather patterns. In January, temperatures range from a chilly -5°C (24°F) at night to a mild average of 5°C (42°F) during the day, peaking at 13°C (56°F), with a relatively low precipitation of 55 mm (2.2 in) over 10 days. Humidity hovers around 85%, contributing to the brisk feel of the month. In contrast, March sees slightly cooler minimum temperatures at -6°C (22°F) but carries a higher average of 7°C (44°F) and maximums reaching up to 17°C (63°F). Precipitation increases to 81 mm (3.2 in) across 16 days, and humidity remains slightly higher at 86%, reflecting the transitional nature of spring. For further details, visit Newcastle weather in March.
In January, the weather in Newcastle is characterized by colder temperatures, with minimums reaching -5°C (24°F) and an average of only 5°C (42°F). Precipitation is relatively high, totaling 55 mm (2.2 in) over about 10 days, accompanied by high humidity levels of 85%. In contrast, April brings a notable shift, with temperatures rising to an average of 8°C (47°F) and maximums reaching 21°C (69°F). Although precipitation slightly decreases to 51 mm (2.0 in) across 11 days, the humidity remains steady at 85%. For more detailed information, you can check Newcastle weather in April.
In January, the weather is typically cold, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 13°C (56°F), and an average temperature of 5°C (42°F). This month sees around 55 mm (2.2 in) of precipitation over about 10 days, accompanied by high humidity levels at 85%. In contrast, May experiences significantly milder conditions, with temperatures ranging from a minimum of -1°C (30°F) to a pleasant maximum of 23°C (74°F), leading to an average of 11°C (53°F). However, May also brings slightly more precipitation, with 72 mm (2.8 in) spread over 13 days, and humidity remains relatively high at 83%. For a more detailed look at weather patterns, check out Newcastle weather in May.
In January, the weather in Newcastle is characterized by chilly temperatures, ranging from a minimum of -5°C (24°F) to a maximum of 13°C (56°F), with an average temperature of about 5°C (42°F). The month experiences significant precipitation, approximately 55 mm (2.2 in), spread over about 10 days, and maintains a high humidity level of 85%.
Conversely, June brings milder and warmer conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 27°C (80°F), and an average of 14°C (58°F). Although June has slightly more precipitation at 73 mm (2.9 in) over around 14 days, the humidity remains consistent at 85%. For more detailed insights on June weather, you can visit Newcastle weather in June.
In January, the weather is notably colder, with temperatures ranging from a chilly -5°C (24°F) at night to a mild 13°C (56°F) during the day, and an average temperature of 5°C (42°F). Humidity is high at 85%, and there is typically about 55 mm (2.2 in) of precipitation over approximately 10 days. In contrast, July experiences much warmer conditions, with minimum temperatures of 7°C (44°F) and daytime highs reaching 27°C (81°F), leading to an average temperature of 16°C (61°F). Humidity remains similar at 86%, but rainfall increases to 77 mm (3.0 in) spread across about 13 days. For a closer look at the specific weather conditions in July, you can check Newcastle weather in July.
In January, the weather in Newcastle is significantly colder, with temperatures ranging from a low of -5°C (24°F) to a high of 13°C (56°F) and an average of 5°C (42°F). The month sees approximately 55 mm (2.2 in) of precipitation over about 10 days, coupled with a high humidity level of 85%. In contrast, August brings milder temperatures, with a minimum of 6°C (43°F), an average of 15°C (60°F), and a maximum of 24°C (75°F). However, it is also wetter, receiving about 94 mm (3.7 in) of rainfall over 17 days, while maintaining the same humidity level of 85%. For more details about August weather, you can visit Newcastle weather in August.
In January, the weather is notably colder, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 13°C (56°F), and an average of 5°C (42°F). The month sees about 55 mm (2.2 in) of precipitation spread over 10 days, accompanied by high humidity levels at 85%. In contrast, September brings a milder climate, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 24°C (76°F) and an average of 13°C (56°F). Although September experiences slightly more precipitation at 68 mm (2.7 in) over 13 days, the humidity remains similarly high at 86%. For more detailed insights, you can check Newcastle weather in September.
In comparing the weather between January and October, January typically experiences colder temperatures, with lows averaging around -5°C (24°F) and highs reaching only up to 13°C (56°F). In contrast, October offers a milder climate with temperatures ranging from a minimum of 0°C (32°F) to an average maximum of 19°C (67°F). While January has around 55 mm (2.2 in) of precipitation over approximately 10 days, October sees an increase in rainfall, totaling about 82 mm (3.2 in) spread across 13 days. Additionally, both months feature high humidity levels, with January at 85% and October slightly higher at 87%. For more details, you can explore Newcastle weather in October.
In comparing the weather of January and November, January tends to be colder, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 13°C (56°F) and an average temperature of 5°C (42°F). In contrast, November offers milder temperatures, where the minimum is -1°C (30°F), the maximum reaches 15°C (59°F), and the average sits at 7°C (46°F). Precipitation is notably higher in November, with 88 mm (3.5 in) falling over 14 days, compared to January's 55 mm (2.2 in) over 10 days. Humidity levels remain similar, with January at 85% and November slightly higher at 86%. For more detailed information, check out Newcastle weather in November.
In comparing the weather between January and December, both months experience similar temperature ranges, with January showing a slightly cooler minimum average of -5°C (24°F) versus December's -4°C (25°F). The average maximum temperature remains constant at 13°C (56°F) for both months. However, December tends to be wetter, with precipitation reaching 90 mm (3.5 in) over 15 days, compared to January’s 55 mm (2.2 in) over 10 days. Humidity levels are quite comparable, with January at 85% and December at 84%. For more details on December conditions, you can visit Newcastle weather in December.
January in Newcastle is marked by its chillier temperatures and significantly higher humidity levels compared to other months, creating a crisp atmosphere often accompanied by frequent rainfall. With an average temperature hovering around 5°C and an average of nearly 10 rainy days, this month stands out as one of the coldest and wettest times of the year. The notable increase in precipitation can make outdoor activities feel less inviting, yet those seeking the serene beauty of winter landscapes might find January's stark charm appealing. For a more detailed analysis of weather patterns throughout the year, check out Newcastle Climate.