January Weather in Lewes, United Kingdom

Last updated: March 17, 2025

In January, Lewes, United Kingdom, experiences a cool maritime climate characterized by maximum temperatures reaching up to 12°C (55°F) and an average of 7°C (45°F). The month often sees chilly nights with lows dropping to 1°C (34°F). Rainfall is a significant feature, with 79 mm (3.1 in) of precipitation spread across approximately 12 days, contributing to a notably high humidity level of 91%. This mix of cool temperatures and frequent rain creates a dynamic winter atmosphere, perfect for cozy indoor activities and exploring the picturesque town under a blanket of clouds.

January Temperature in Lewes

In Lewes, United Kingdom, January ushers in the year with a crisp chill, featuring temperatures that range from a cool 1°C (34°F) at night to a mild 12°C (55°F) during the day, with an average of 7°C (45°F). This winter month notably sets the tone for a gradual warming trend, as temperatures inch up in February and March, where the maximums hover around 12°C (54°F) and 13°C (55°F), while winter's bite lingers with nightly lows dipping into the minus figures. By April, the landscape begins to bloom, welcoming temperatures that start to rise more significantly, signaling the approach of spring. Overall, January serves as a pivotal point in Lewes's climate, balancing the chill of winter with hints of the warmth that awaits in the coming months.

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

The chart illustrates January temperature patterns in Lewes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454546485359636461575148
Data source: Temperature data for Lewes 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 Lewes

January in Lewes, United Kingdom, tends to be a rather wet month, recording an average precipitation of 79 mm (3.1 in) over approximately 12 days of rainfall. This sets the stage for a rainy winter, though February sees a slight uptick with 83 mm (3.3 in). Interestingly, the heaviest downpours are reserved for the latter part of the year, with December averaging a significant 149 mm (5.9 in) over 18 days. As spring approaches, precipitation levels begin to decline dramatically, with April dropping to just 30 mm (1.2 in) across 6 days. This trend of decreasing rain in late spring and early summer suggests that while January packs a wet punch, it serves as a precursor to the drier months ahead.

January Precipitation Trends in Lewes

The chart displays monthly precipitation patterns in Lewes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec798369304865517467133119149
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Lewes

In Lewes, United Kingdom, January ushers in the year with a notably high humidity level of 91%, making it one of the moistest months. Following closely, February maintains a humidity of 89%, suggesting that the winter season grips the region with persistent dampness. As spring approaches, a gradual decline occurs, with March and April seeing levels of 86% and 85% respectively, hinting at a slow transition towards drier weather. However, the trend shifts again as late autumn arrives, with November and December returning to elevated humidity, both hovering at 92%. Overall, the data highlights a clear seasonal pattern: winter and late autumn are characterized by high humidity, while spring and early summer enjoy a slight reprieve, fostering a dynamic climate that reflects the enchanting charm of Lewes throughout the year.

January Average Humidity in Lewes

This chart illustrates the average monthly humidity levels in Lewes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Lewes

In January, Lewes experiences a UV Index of 2, placing it in the low exposure category, which means you can enjoy the outdoors with minimal risk of sunburn, taking about 45 minutes of direct sunlight before needing to seek shade. This pattern of low UV exposure continues into February, but as spring approaches, the UV Index rises, peaking at 6 in April and 8 in June and July, indicating a shift to more intense sun that requires more careful management of sun exposure. With burn times decreasing dramatically to just 15 minutes during the peak summer months, it's essential for residents and visitors to adjust their sun protection strategies as the seasons transition. For a comprehensive overview of UV conditions throughout the year, visit Lewes UV Index.

Maximum UV Index Levels in Lewes for January

The chart shows the monthly maximum UV Index (UVI) for Lewes 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.
JanFebMarAprMayJunJulAugSepOctNovDec224678876421
Data source: Lewes 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 Lewes

In January, Lewes experiences a relatively modest 99 hours of sunshine, marking the start of the year with a gentle glow. However, as winter yields to spring, the daylight begins to blossom—February sees an uplifting increase to 152 hours, setting the stage for a vibrant March that boasts 229 hours of sunshine. The trend continues upward, with April and May showcasing the peak of spring’s brightness, delivering 348 and 415 hours respectively. As summer approaches, the sun shines even more brightly, reaching its zenith in July with an impressive 424 hours. Following this peak, a gradual decline ensues, as August and September witness 388 and 325 hours, signaling the transition into autumn. By October, the days shorten further to 256 hours, and winter returns with the hush of November and December, offering only 155 and 119 hours. Overall, the sunshine hours illustrate a captivating cyclical pattern, aligning perfectly with the seasons of this charming coastal town.

Monthly Sunshine Duration in Lewes: January Highlighted

The January sunshine duration represents the total number of hours Lewes 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.
JanFebMarAprMayJunJulAugSepOctNovDec99h152h229h348h415h412h424h388h325h256h155h119h
Data source: Lewes January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lewes During January

In Lewes, United Kingdom, January is one of the months with the lowest chance of sunny weather, boasting only a 21% likelihood of sunshine. This trend of minimal sunlight carries into December, which has even lower probabilities at 20%, indicating that winter months tend to be particularly grey. As we move into February, the chance of sun increases slightly to 25%, hinting at the slow transition towards brighter days. However, notable improvements are seen from March onwards, where the likelihood of sunny weather jumps to 42%, marking the arrival of spring. Thus, while January might be dreary, the promise of sunnier days is just around the corner as the seasons change.

Percentage of Sunny Days in January in Lewes

The chart illustrates the percentage of sunny days in Lewes 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 Lewes experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%25%42%59%43%32%42%39%38%31%36%21%
Data source: Lewes January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lewes in January

In January, Lewes, United Kingdom, experiences about 8 hours of daylight, making it one of the shortest months for sunlight. As the year progresses, daylight gradually increases, with February bringing an additional 2 hours, reaching 10 hours. This upward trend continues through the spring, peaking in June at a bright 16 hours of daylight, perfect for enjoying the outdoors. However, as summer wanes, daylight begins to recede, with hours decreasing to 15 in July and further to 14 in August. By autumn, daylight diminishes more rapidly, returning to 10 hours by October and settling again at 8 hours by November and December, completing a seasonal cycle that beautifully reflects the ebb and flow of nature’s rhythms.

Average Daylight Hours in Lewes for January

The chart illustrates the variation in daylight duration in Lewes throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 30m10h 1m11h 55m13h 51m15h 32m16h 24m15h 56m14h 26m12h 34m10h 39m8h 56m8h 1m
Data source: Lewes daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Lewes

In January, the winds in Lewes, United Kingdom, are brisk, averaging 7.9 m/s (18 mph), which sets a lively tone for the start of the year. This gusty introduction to winter is mirrored in October and December, maintaining the same average wind speed, suggesting a seasonal consistency in the winds that wrap around the end of the year. As the months progress into spring, average winds begin to decline, with April seeing its lowest speed at 5.9 m/s (13 mph), before gradually rising again in late spring and summer. The winds pick up slightly in February but display notable variation in the heart of summer, where June sees a calm 4.5 m/s (10 mph), before picking up toward the end of the summer season. Overall, January's winds herald a winter that contrasts with the gentler breezes of mid-year, painting a dynamic picture of Lewes's climate.

Average January Wind Speed in Lewes

The chart displays monthly wind speed patterns in Lewes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.9 m/s8.16.95.97.14.55.46.35.67.96.88.0
Data source: Lewes January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Lewes Compares to Other Months

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

In January, temperatures range from a minimum of 1°C (34°F) to a maximum of 12°C (55°F), with an average of 7°C (45°F). The month experiences about 79 mm (3.1 in) of precipitation over 12 days, accompanied by high humidity levels at 91%. In contrast, February sees slightly colder conditions, with temperatures dipping to a minimum of -1°C (30°F) while maintaining the same maximum of 12°C (54°F) and an average of 7°C (45°F). This month receives a bit more precipitation at 83 mm (3.3 in) over 14 days, and the humidity is marginally lower at 89%. For a detailed look at February weather in Lewes, visit Lewes weather in February.

In January, the weather is characterized by a milder average temperature of 7°C (45°F), with highs reaching up to 12°C (55°F). It experiences significant precipitation of 79 mm (3.1 in) over 12 days, coupled with a high humidity level of 91%. In contrast, March offers a slightly cooler temperature range with an average of 8°C (47°F) and a minimum of -2°C (30°F), while still peaking at 13°C (55°F). March has less rainfall at 69 mm (2.7 in) but sees precipitation on more days, totaling 14. Humidity is a bit lower, averaging 86%. For more detailed insights on the weather during this month, you can visit Lewes weather in March.

In January, the weather tends to be cooler with average temperatures ranging from 1°C (34°F) to 12°C (55°F) and a notable humidity level of 91%. The month also experiences heavier precipitation, totaling 79 mm (3.1 in) over approximately 12 days. In contrast, April marks a shift towards milder conditions, with average temperatures between 2°C (36°F) and 15°C (60°F). Precipitation drops significantly to 30 mm (1.2 in) over just 6 days, and humidity decreases slightly to 85%. For a more detailed view of the weather in April, visit Lewes weather in April.

January and May present distinctly different weather patterns. In January, the temperatures range from a chilly minimum of 1°C (34°F) to a maximum of 12°C (55°F), with an average of 7°C (45°F). The month sees considerable precipitation, totaling 79 mm (3.1 inches) across 12 days, and high humidity at 91%. In contrast, May offers a more moderate climate, with temperatures starting at a minimum of 5°C (42°F) and reaching up to 19°C (66°F), averaging around 12°C (54°F). Precipitation is lighter in May, with only 48 mm (1.9 inches) expected over 9 days, and humidity is slightly lower at 82%. For a closer look at the weather specifics in May, you can check Lewes weather in May.

In January, the weather is quite chilly, with average temperatures ranging from a minimum of 1°C (34°F) to a maximum of 12°C (55°F). The month sees a considerable amount of rainfall, totaling 79 mm (3.1 in) over about 12 days, contributing to a high humidity level of 91%. In contrast, June brings a much warmer climate, with temperatures starting at a minimum of 10°C (51°F) and peaking at around 21°C (71°F), averaging 15°C (59°F). Rainfall is less frequent, with a total of 65 mm (2.6 in) spread over just 8 days, and humidity decreases slightly to 81%. For more detailed insights into June weather, you can check Lewes weather in June.

January and July present a stark contrast in weather patterns. In January, temperatures range from a chilly minimum of 1°C (34°F) to a maximum of 12°C (55°F), with an average of 7°C (45°F). The month experiences significant precipitation, totaling 79 mm (3.1 in) over about 12 days, and high humidity levels at 91%. In contrast, July boasts much warmer temperatures, with a minimum of 13°C (56°F), an average of 17°C (63°F), and a maximum reaching 23°C (74°F). Precipitation in July is lower, at 51 mm (2.0 in) over 9 days, and the humidity drops to a more comfortable 76%. For more detailed insights, you can check Lewes weather in July.

January and August in Lewes present strikingly different weather conditions. In January, temperatures range from a chilly 1°C (34°F) to a mild 12°C (55°F), with an average of 7°C (45°F). The month is characterized by high humidity at 91% and 79 mm (3.1 in) of rainfall spread over 12 days. In contrast, August experiences considerably warmer temperatures, with a minimum of 12°C (54°F) and a maximum reaching 25°C (77°F), averaging at 18°C (64°F). This summer month features slightly less precipitation at 74 mm (2.9 in), also falling across 12 days, but with a much lower humidity level of 73%. For a detailed overview of August weather, refer to this link: Lewes weather in August.

Comparing the weather between January and September reveals significant differences in temperature and humidity. In January, the average temperature is a cooler 7°C (45°F), with lows dipping to 1°C (34°F) and highs reaching 12°C (55°F). This month also experiences higher humidity at 91% and receives about 79 mm (3.1 in) of precipitation over 12 days. In contrast, September boasts milder temperatures, with an average of 16°C (62°F), minimums of 10°C (50°F), and maximums of 21°C (71°F). The precipitation in September is less, measuring 67 mm (2.6 in) over 11 days, and the humidity is lower at 80%. For more detailed information about the weather in September, you can visit Lewes weather in September.

In January, the weather typically brings cooler temperatures, with highs averaging 12°C (55°F), while the minimum dips to around 1°C (34°F). The month tends to be quite wet as well, with 79 mm (3.1 in) of precipitation recorded over about 12 days and a high humidity level of 91%. In contrast, October experiences milder temperatures, with average highs reaching 20°C (68°F) and lows around 6°C (43°F). However, it is also wetter, with 133 mm (5.2 in) of rainfall spread over 16 days, though the humidity remains relatively close at 89%. To learn more about the October conditions, you can visit Lewes weather in October.

In January, temperatures typically range from a chilly 1°C (34°F) to a mild maximum of 12°C (55°F), with an average of around 7°C (45°F). The month experiences about 79 mm (3.1 in) of precipitation over 12 days, alongside high humidity levels of 91%. In contrast, November enjoys slightly warmer conditions, with temperatures varying from 3°C (37°F) to a maximum of 16°C (61°F) and an average of 11°C (51°F). However, it is wetter, receiving 119 mm (4.7 in) of rainfall over 16 days, with humidity slightly higher at 92%. For a more detailed understanding of how the weather unfolds, check out Lewes weather in November.

In January, temperatures range from a minimum of 1°C (34°F) to a maximum of 12°C (55°F), with an average of 7°C (45°F). The month experiences about 79 mm (3.1 in) of precipitation over approximately 12 days, with humidity levels at 91%. In contrast, December sees slightly milder temperatures, with a minimum of 2°C (35°F) and a maximum of 13°C (56°F), averaging around 9°C (48°F). However, it also tends to be wetter, accumulating 149 mm (5.9 in) of precipitation over 18 days and a humidity level of 92%. For more detailed insights, check out Lewes weather in December.

Compare Lewes's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Lewes

As winter grips Lewes, January brings a chilly embrace, with temperatures notably cooler than other months, typically averaging around 7°C. The high humidity of 91% and frequent rain bring a dampness that adds to the overall wintry feel, with approximately 12 days of precipitation contributing to a total of 79 mm for the month. This creates a stark contrast to the milder, sunnier days of spring and summer, making January a time for cozy indoors rather than outdoor adventures. For a deeper look into how these conditions compare throughout the year, explore the comprehensive details at Lewes Climate.