Last updated: March 17, 2025
In January, Windsor, United Kingdom experiences a cool climate marked by an average temperature of 5°C (41°F), with highs reaching up to 14°C (58°F) and lows dropping to a chilly -5°C (23°F). The month witnesses approximately 52 mm (2.1 in) of rainfall spread over 9 days, contributing to a high humidity level of 91%. This combination of cooler temperatures and frequent precipitation creates a damp atmosphere, making warmer clothing a necessity for those venturing outdoors.
In January, Windsor, United Kingdom, experiences a notable chill, with temperatures ranging from a brisk -5°C (23°F) at their lowest to a mild 14°C (58°F) at the high end. This month sees an average temperature of 5°C (41°F), setting the stage for the cold winter season. As the month progresses towards February, we observe a slight increase in warmth, with average temperatures creeping up to 6°C (43°F) and maximums reaching 18°C (65°F). The coldest nights may still dip to -5°C (23°F), hinting at a lingering winter chill. Overall, January serves as a stark reminder of the winter season's grip, while also hinting at the gradual shift towards milder temperatures in the upcoming months.
In January, Windsor, United Kingdom, experiences an average precipitation of 52 mm (2.1 in) over 9 rainy days, setting a tone of wintery dampness without excessive downpour. This consistent rainfall mirrors February’s totals, yet the days slightly increase, hinting at a gradual transition towards spring. Notably, as the year progresses, March sees a slight uptick in precipitation with 55 mm (2.2 in) across 13 days, indicating a trend where rainfall becomes more spread out as temperatures rise. By April, the total decreases to 33 mm (1.3 in), showcasing a shift towards drier conditions. This pattern of varying precipitation continues through the months, with notable peaks in the fall and winter months, suggesting that while January offers a balanced start, the region prepares for more dynamic weather in the upcoming seasons.
In January, Windsor, United Kingdom, experiences its peak humidity at an impressive 91%, setting the stage for a notably damp winter month. This high level of moisture is characteristic of the cold season, which sees only a slight decrease to 89% in February. As spring approaches, humidity gradually decreases, dropping to 86% in March and further to 85% in April. The trend continues into May, with a more noticeable drop to 79%, signaling the onset of drier months. However, the humidity remains relatively stable during the summer, hovering around 71% in July before rising again to 76% in August. As the year progresses into autumn, the humidity rises sharply once more, reaching 90% in October and peaking again at 92% in both November and December. This cyclical pattern highlights Windsor's characteristic dampness, particularly in the colder months, while showcasing a brief respite during the spring and summer.
In January, the UV Index in Windsor, United Kingdom registers a low level of 1, indicating minimal risk from sun exposure, with a burn time of 45 minutes. This low UV activity continues into February, maintaining the same Index and exposure category. As spring approaches in March and April, the UV Index rises to 4 and 5, respectively, marking a shift to moderate exposure, which shortens the safe sun exposure time to just 30 minutes. The transition to summer sees a notable uptick, with May hitting a high of 7 before June and July both peak at 8, categorizing their exposure as very high and significantly reducing the burn time to 15 minutes. As summer wanes into September and October, there's a gradual decline, with the UV Index back to moderate and low levels by November and December, echoing the safe exposure duration of 45 minutes. For a more detailed overview, check out the Windsor UV Index.
UV Risk Categories
January in Windsor, United Kingdom, welcomes the year with 98 hours of sunshine, a modest start that reflects the winter's grip. As the months progress, the sun gradually becomes more generous; February sees a rise to 148 hours, and by March, there's a noticeable increase to 210 hours. The spring months bring even more brightness, with April nearly doubling January's total at 319 hours. This upward trend continues into the summer, peaking in July with 404 hours of sunshine, before slightly tapering off in August. As autumn sets in, the sunshine hours begin to dwindle again, dropping to 300 hours in September and falling further to 144 hours by November. December's chill concludes the year with just 109 hours, but the pattern is clear: Windsor’s longer days in spring and summer offer a vibrant contrast to the shorter, darker winter months.
In January, Windsor, United Kingdom, experiences a modest 20% chance of sunny weather, making it one of the cloudier months of the year. As winter lingers, the likelihood of sunshine improves slightly in February to 25%, and continues to rise steadily through March, where it reaches 29%. This upward trend highlights the gradual transition into spring, with April boasting the promise of brighter days at 50%. While January may be dreary, the data suggests that as the year progresses, so too does the likelihood of basking in the warmth of the sun, paving the way for sunnier times ahead.
In Windsor, United Kingdom, January ushers in the year with approximately 8 hours of daylight, setting the stage for a gradual increase in luminosity as the months progress. By February, daylight reaches 9 hours, hinting at the lingering promise of spring. March continues this upward trajectory, basking in 11 hours of daylight, while April delights with a generous 13 hours that heralds longer, sunnier days. As May transitions into summer, the daylight stretches to 15 hours, peaking in June and July with an impressive 16 hours that encapsulate the vibrant energy of the season. However, as autumn approaches, a decline begins; August still offers a warm 14 hours, but by September, it settles at 12 hours, and the daylight further retreats to 10 hours in October. November and December bring a stark contrast, as daylight dwindles to 8 hours and 7 hours, respectively, reminding us of the cyclical dance of light and darkness in Windsor's seasonal rhythm.
In January, the winds in Windsor, United Kingdom, blow at an average speed of 4.3 m/s (10 mph), setting the tone for an invigorating start to the year. As February arrives, these breezes pick up slightly to 4.8 m/s (11 mph), hinting at the transition towards more robust gusts that follow. Interestingly, March sees a small dip back to 4.4 m/s (10 mph), while the winds calm further in April, dropping to 3.5 m/s (8 mph). As spring unfolds, a return to 4.3 m/s in May signals a brief resurgence, but the arrival of summer introduces consistently lighter winds, with June and July averaging around 3.2 m/s (7 mph) and 3.3 m/s (7 mph) respectively. As the seasons shift towards autumn, winds regain their pace, culminating in a steady 4.4 m/s (10 mph) in October before dropping again in the final months of the year. This seasonal variation highlights a captivating rhythm in Windsor's January winds, setting a foundation for the meteorological tapestry of the year.
The weather in Windsor 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 Windsor and find detailed weather information for every month.
In January, the weather is characterized by a minimum temperature of -5°C (23°F) and an average of 5°C (41°F), with a maximum temperature reaching 14°C (58°F). The month sees about 52 mm (2.1 in) of precipitation over 9 days, and humidity levels are high at 91%. In contrast, February experiences slightly milder temperatures, with a minimum of -5°C (23°F), an average of 6°C (43°F), and a maximum of 18°C (65°F). Precipitation remains similar at 52 mm (2.0 in), but it occurs over 10 days, while humidity decreases slightly to 89%. For more detailed information, you can visit Windsor weather in February.
January and March present a notable contrast in weather patterns. In January, temperatures range from a chilly minimum of -5°C (23°F) to a more moderate maximum of 14°C (58°F), with an average of 5°C (41°F). The month sees around 52 mm (2.1 in) of precipitation over 9 days, accompanied by high humidity levels at 91%. Conversely, March experiences slightly milder temperatures, with a minimum remaining at -5°C (23°F) but a higher average of 7°C (46°F) and a maximum reaching 22°C (71°F). The precipitation increases slightly to 55 mm (2.2 in) over 13 days, and humidity decreases to 86%. This transition reflects the gradual shift from winter to spring. For more details, check out Windsor weather in March.
January and April present a stark contrast in weather. In January, temperatures are noticeably cooler, with an average of 5°C (41°F), and lows dipping to -5°C (23°F). Precipitation is also relatively high at 52 mm (2.1 in) over 9 days, accompanied by high humidity levels at 91%. In comparison, April offers a more moderate climate, featuring an average temperature of 10°C (49°F) and maximums reaching 26°C (80°F). With only 33 mm (1.3 in) of precipitation spread over 8 days, and a humidity level of 85%, April feels much milder and more pleasant. For a detailed look at the specifics of April's weather, you can visit Windsor weather in April.
January and May display significant contrasts in weather patterns. In January, temperatures range from a chilly -5°C (23°F) to a mild 14°C (58°F) with an average of 5°C (41°F), while May experiences much warmer conditions, with temperatures varying from 1°C (35°F) to 26°C (78°F) and an average of 13°C (55°F). Precipitation levels are relatively comparable, with January seeing 52 mm (2.1 in) over 9 days and May recording 63 mm (2.5 in) across 10 days. Humidity is higher in January at 91%, compared to May’s 79%, contributing to a distinctly different feel in the air. For a closer look at May's pleasant weather, check out Windsor weather in May.
In January, the weather in Windsor is quite cold, with temperatures ranging from a chilly -5°C (23°F) at night to a mild 14°C (58°F) during the day, accompanied by high humidity levels of 91%. The month sees about 52 mm (2.1 in) of precipitation over 9 days, making it a damp and frosty period. In contrast, June offers a much warmer climate, with temperatures starting at a minimum of 7°C (45°F) and peaking at a pleasant 31°C (88°F), averaging around 16°C (62°F). Although June experiences slightly more precipitation at 74 mm (2.9 in) over the same number of rainy days, the humidity drops to 80%, resulting in a more comfortable atmosphere. For a detailed look at June's weather, you can visit Windsor weather in June.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (58°F), and an average temperature of 5°C (41°F). The month sees about 52 mm (2.1 in) of precipitation over 9 days, coupled with high humidity at 91%. In contrast, July brings warmer conditions, with temperatures ranging from a minimum of 9°C (48°F) to a scorching maximum of 35°C (96°F), averaging around 18°C (65°F). Although July experiences slightly more precipitation at 64 mm (2.5 in) over 11 days, the humidity drops to a more comfortable 71%. For more detailed information, check out Windsor weather in July.
The weather in January is markedly colder compared to August, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (58°F) and averaging 5°C (41°F). In contrast, August boasts much milder conditions, featuring temperatures that range from 8°C (46°F) to a sweltering maximum of 33°C (92°F) and an average of 18°C (64°F). Additionally, January experiences higher humidity levels at 91% and more rainy days (9) compared to August, which has lower humidity at 76% and 12 days of precipitation. For a detailed overview of the climate during this summer month, check out Windsor weather in August.
In comparing the weather between January and September, a stark contrast emerges. January typically experiences chilly temperatures, with a minimum of -5°C (23°F) and an average of 5°C (41°F), while September enjoys a much warmer climate, where temperatures range from a minimum of 3°C (38°F) to a pleasant average of 15°C (59°F), peaking at 28°C (83°F). Precipitation in January is slightly higher at 52 mm (2.1 in) over 9 days, compared to September's 45 mm (1.8 in) across 10 days, indicating a similar frequency of rain with less overall volume in September. Additionally, January's high humidity at 91% makes it feel even colder, whereas September's humidity is a more manageable 82%. For more detailed insights, you can check Windsor weather in September.
In January, the weather tends to be quite cold, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 14°C (58°F). The month experiences an average temperature of 5°C (41°F) and sees about 52 mm (2.1 in) of precipitation over approximately 9 days, along with a high humidity of 91%.
In contrast, October brings a milder climate, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 23°C (73°F). The average temperature is significantly warmer at 12°C (53°F), and October receives more rainfall, totaling 86 mm (3.4 in) over about 12 days, while maintaining a humidity level of 90%. For further details on the weather in October, you can check Windsor weather in October.
January and November present contrasting yet similar weather patterns. In January, temperatures typically range from a chilly minimum of -5°C (23°F) to a milder maximum of 14°C (58°F), with an average of 5°C (41°F). The month is characterized by high humidity at 91% and precipitation occurring on 9 days, totaling 52 mm (2.1 in). Conversely, November experiences slightly warmer temperatures, with a minimum of -2°C (29°F) and a maximum of 16°C (62°F), leading to an average of 8°C (47°F). Precipitation is marginally higher at 53 mm (2.1 in) across 11 days, and humidity remains comparable at 92%. For a closer look at the weather in November, you can check out Windsor weather in November.
In January, the weather experiences slight fluctuations compared to December. The minimum temperature in January drops to -5°C (23°F), while December's minimum is slightly milder at -4°C (24°F). Both months have similar maximum temperatures, peaking at 14°C (58°F). However, January tends to be drier with a total precipitation of 52 mm (2.1 in) over 9 days, in contrast to December's higher precipitation of 82 mm (3.2 in) across 14 days. Humidity remains fairly consistent between the two months, with January at 91% and December slightly higher at 92%. For more detailed insights on December weather, you can check Windsor weather in December.
January in Windsor presents a cool and damp start to the year, characterized by lower temperatures and higher humidity compared to other months. With a maximum of 14°C during warmer spells and an average of 5°C, visitors can expect a brisk chill in the air, particularly at night when temperatures can drop to around -5°C. The 52 mm of precipitation spread over nine days adds to the wintery feel, making it essential to bundle up and prepare for occasional rain. This combination of cool temperatures and high humidity makes January distinctly different from the milder, drier months ahead. For a deeper dive into Windsor's annual climate patterns, be sure to explore Windsor Climate.