January Weather in Sennen, United Kingdom

Last updated: March 17, 2025

In January, Sennen, United Kingdom, experiences a mild coastal climate characterized by an average temperature of 9°C (49°F), with maximums reaching 15°C (58°F) and minimums dipping to 4°C (40°F). The month sees considerable rainfall, accumulating to 87 mm (3.4 in) over approximately 15 days, contributing to the area's lush environment. With humidity levels averaging 81%, visitors can expect a damp atmosphere, making warm clothing and an umbrella essential for navigating this picturesque seaside destination.

January Temperature in Sennen

In January, Sennen, United Kingdom, experiences a mild yet fresh winter, with temperatures ranging from a minimum of 4°C (40°F) to a comfortable maximum of 15°C (58°F), resulting in an average of 9°C (49°F). This month typically marks the transition from the chillier early winter months, as evidenced by February's drop in nighttime lows to 1°C (34°F). As spring approaches, temperatures gradually rise, with April seeing a minimum of 5°C (41°F) and a maximum of 14°C (57°F), hinting at the promise of warmer days ahead. The overall trend reveals a gradual warming from winter into spring, making Sennen's January a brisk yet inviting time for outdoor exploration amidst its scenic coastal beauty.

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

The chart illustrates January temperature patterns in Sennen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec494848505358626260575351
Data source: Temperature data for Sennen 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 Sennen

In January, Sennen, United Kingdom, experiences an average precipitation of 87 mm (3.4 in) over approximately 15 days, setting the tone for a wetter winter. As the months progress, precipitation rises, peaking in December with a significant 150 mm (5.9 in) across 22 days. The trend shows that rainfall tends to increase sharply during the latter part of the year, particularly in October and November, which see 139 mm (5.5 in) and 125 mm (4.9 in) respectively. Interestingly, the early months of the year, while still damp, exhibit lower levels of rainfall, indicating a gradual build-up towards the February peak of 99 mm (3.9 in). Thus, while January ushers in a wet season, it's the months that follow that truly intensify the precipitation patterns in this coastal locale.

January Precipitation Trends in Sennen

The chart displays monthly precipitation patterns in Sennen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec879990446469665873139125150
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Sennen

In January, Sennen experiences a notable humidity level of 81%, setting the stage for a month characterized by crisp coastal air. As winter transitions into spring, the humidity slightly rises, peaking at 83% in both February and April, before reaching 85% during the warmer months of May through August. This consistent level of moisture in the air contributes to the lush greenery typical of this region. September sees a minor decline to 84%, followed by a gentle drop to 82% in November. Interestingly, the year wraps up with December returning to the initial 81%, embodying the cyclical nature of Sennen's climate. Throughout the year, humidity remains relatively stable, with only minor fluctuations, creating a generally moist atmosphere that defines Sennen's unique charm.

January Average Humidity in Sennen

This chart illustrates the average monthly humidity levels in Sennen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%82%83%85%85%85%85%84%84%82%81%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Sennen

In January, Sennen, United Kingdom, experiences a UV Index of 2, placing it in the low exposure category, which means residents and visitors have a burn time of approximately 45 minutes when outdoors. This trend of low UV levels continues into February, suggesting that the winter sun poses minimal risk. However, as spring approaches, March sees the UV Index rise to 4, signifying a moderate exposure level with a reduced burn time of 30 minutes. This gradual escalation continues into April and May, where the index peaks at 6 and 7 respectively, indicating high levels of exposure and further shortening the burn time to just 25 minutes. The summer months lead to even greater precautions, with June reaching a very high index of 9, allowing for only 15 minutes of safe sun exposure. This pattern illustrates a clear seasonal fluctuation in UV levels, emphasizing the need for increased sun protection as temperatures rise. As the year winds down, UV exposure drops significantly, returning to a more manageable index of 2 in November and 1 in December. For a detailed look at the UV Index throughout the year, visit Sennen UV Index.

Maximum UV Index Levels in Sennen for January

The chart shows the monthly maximum UV Index (UVI) for Sennen 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.
JanFebMarAprMayJunJulAugSepOctNovDec224679886421
Data source: Sennen 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 Sennen

In January, Sennen experiences a modest 96 hours of sunshine, setting the stage for a gradual increase as the year unfolds. As February rolls in, sunshine hours rise significantly to 155, heralding the arrival of longer days. This upward trend continues spectacularly through March, where sunlight soars to 237 hours, boosting spirits as spring approaches. April shines even brighter with 353 hours, and by May, the sun fully embraces Sennen, delivering 407 hours of glorious light. The warmth peaks in July with 426 hours, before the sun starts to retreat slightly during the late summer and into the fall. However, even with this decline, Sennen enjoys a noteworthy 330 hours in September, reminding us of the lingering warmth and brightness. As the year transitions into winter, the sunlight diminishes, closing the year with 120 hours in December. Throughout these months, it's clear that Sennen basks in a splendid progression of sunshine that greatly enhances its charming coastal allure.

Monthly Sunshine Duration in Sennen: January Highlighted

The January sunshine duration represents the total number of hours Sennen 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.
JanFebMarAprMayJunJulAugSepOctNovDec96h155h237h353h407h404h426h387h330h261h158h120h
Data source: Sennen January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sennen During January

In Sennen, United Kingdom, January offers a modest 26% chance of sunny weather, making it one of the cooler months for sun seekers. As the year progresses, the likelihood of sunshine gradually increases, peaking in April at a more promising 51%. Following that, March enjoys a significant jump to 35%, while early summer months like July and August present a healthier 42% and 36% chance, respectively. Conversely, the later months of the year, such as November and December, see a decline, with chances dropping to 23% and 21%. This trend highlights January's relatively low sun potential, but hints at brighter days ahead as winter gives way to spring and summer.

Percentage of Sunny Days in January in Sennen

The chart illustrates the percentage of sunny days in Sennen 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 Sennen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%23%35%51%40%32%42%36%33%31%23%21%
Data source: Sennen January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sennen in January

In January, Sennen, United Kingdom, experiences around 8 hours of daylight, marking the end of the winter solstice hangover. As the days gradually lengthen, February brings an increase to 10 hours, hinting at the promise of spring. The upward trend continues into March, with 11 hours of light illuminating the landscape, and by April, daylight reaches 13 hours, invigorating the surroundings. May delights with 15 hours, drawing people outdoors to bask in the warmth of the expanding sunlight. The peak arrives in June, where Sennen enjoys a stunning 16 hours of daylight. This radiance begins to wane in July, with 15 hours, and continues its descent through August and September, dipping to 14 and 12 hours respectively. As autumn sets in, October offers 10 hours, while November transitions to 9 hours, before closing the year once again at 8 hours in December. The cyclical rhythm of daylight not only marks the passing of seasons but also encapsulates the unique charm of life in Sennen.

Average Daylight Hours in Sennen for January

The chart illustrates the variation in daylight duration in Sennen throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 35m10h 4m11h 55m13h 48m15h 27m16h 17m15h 50m14h 22m12h 33m10h 40m9h8h 7m
Data source: Sennen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Sennen

In Sennen, United Kingdom, January ushers in the year with a brisk average wind speed of 8.6 m/s (19 mph), providing a refreshing start to winter. The winds tend to pick up in February, reaching 9.8 m/s (22 mph), before softening slightly in March and April, where they hover around 7.7 m/s (17 mph) and 6.4 m/s (14 mph), respectively. As spring approaches, the winds remain gentle, peaking again in October at 7.8 m/s (17 mph). Interestingly, the year closes with the strongest winds, where December surprises with a notable 10.1 m/s (23 mph). Observing these trends, it’s clear that while January is relatively brisk, the wind speeds fluctuate throughout the year, hinting at the dynamic and changing nature of Sennen's coastal climate.

Average January Wind Speed in Sennen

The chart displays monthly wind speed patterns in Sennen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.6 m/s9.87.76.47.85.35.96.05.87.87.410.1
Data source: Sennen January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Sennen Compares to Other Months

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

In comparison to January, February experiences slightly cooler temperatures, with a minimum of 1°C (34°F) compared to January's 4°C (40°F). The average temperature remains the same at 9°C (49°F), but the maximum in February drops to 13°C (55°F) from 15°C (58°F) in January. Precipitation levels are higher in February, totaling 99 mm (3.9 in) over 17 days, versus January's 87 mm (3.4 in) over 15 days. Humidity also sees a slight increase, rising from 81% in January to 83% in February. For more details, you can check out Sennen weather in February.

In comparing the weather of January and March, both months exhibit similar average temperatures, hovering around 9°C (49°F). However, January generally experiences slightly warmer highs, reaching up to 15°C (58°F), compared to March's maximum of 13°C (55°F). Conversely, January has a higher minimum temperature of 4°C (40°F), while March can drop to as low as 0°C (32°F). Precipitation levels are quite comparable, with January receiving 87 mm (3.4 in) across 15 days and March seeing just a slight increase to 90 mm (3.6 in) over 16 days. Humidity remains relatively steady, with January at 81% and March slightly higher at 82%. For more detailed information on March weather, you can visit Sennen weather in March.

In January, the weather is characterized by cooler temperatures with an average of 9°C (49°F), peaking at 15°C (58°F) during the day. Alongside this, January sees significant precipitation, totaling 87 mm (3.4 in) across about 15 days, resulting in a high humidity level of 81%. In contrast, April experiences slightly warmer conditions, with an average temperature of 10°C (50°F) and a maximum around 14°C (57°F). However, April is much drier, receiving only 44 mm (1.7 in) of rainfall over 8 days and maintaining a humidity level of 83%. The transition from January to April highlights a gradual warming trend and a noticeable decrease in rainfall. For more details on April conditions, check Sennen weather in April.

In January, the weather tends to be cooler with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (58°F). It is also relatively wet, with 87 mm (3.4 inches) of precipitation spread over 15 days, contributing to a high humidity level of 81%. In contrast, May experiences slightly milder conditions, where temperatures range from a minimum of 7°C (46°F) to a maximum of 16°C (61°F). Precipitation decreases to 64 mm (2.5 inches) over 10 days, and the humidity remains fairly high at 85%. For more detailed information, you can check Sennen weather in May.

In January, the weather is noticeably cooler, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (58°F). The month typically sees significant precipitation, averaging 87 mm (3.4 in) over about 15 days, and humidity levels are relatively high at 81%. In contrast, June brings a warmer ambiance, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 19°C (67°F). Precipitation decreases to 69 mm (2.7 in), occurring over 12 days, and the humidity is only slightly lower at 85%. For more detailed insights into weather patterns during this month, check out Sennen weather in June.

In January, the weather is much cooler, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (58°F), and an average of 9°C (49°F). The month sees significant precipitation, totaling 87 mm (3.4 in), over approximately 15 days, accompanied by high humidity levels of 81%.

In contrast, July experiences milder temperatures, with lows of 13°C (56°F) and highs reaching 21°C (71°F), resulting in an average temperature of 17°C (62°F). The precipitation is lower, at 66 mm (2.6 in) over about 10 days, and humidity remains relatively high at 85%.

For a detailed look at July's weather specifics, you can check Sennen weather in July.

In January, the weather is significantly cooler, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (58°F), and an average temperature of 9°C (49°F). The month experiences heavier rainfall, with 87 mm (3.4 in) of precipitation over 15 days, along with a high humidity level of 81%. In contrast, August offers a milder climate, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 20°C (68°F), and an average temperature of 16°C (62°F). Precipitation is lighter at 58 mm (2.3 in) over 10 days, accompanied by slightly higher humidity at 85%. For more details, check out Sennen weather in August.

When comparing the weather in January and September, notable differences are evident. In January, temperatures range from a low of 4°C (40°F) to a high of 15°C (58°F), with an average of 9°C (49°F). The month experiences considerable precipitation, totaling 87 mm (3.4 in) over approximately 15 days, and humidity levels are relatively high at 81%. In contrast, September sees milder temperatures, with a minimum of 11°C (53°F) and a maximum of 20°C (69°F), averaging around 16°C (61°F). Precipitation decreases to 73 mm (2.9 in) over about 13 days, and humidity remains slightly elevated at 84%. For a detailed view of the weather in September, you can refer to Sennen weather in September.

In January, the weather typically features cooler temperatures, with a minimum of 4°C (40°F) and an average of 9°C (49°F), peaking at 15°C (58°F). The month is characterized by relatively high humidity at 81% and receives about 87 mm (3.4 in) of precipitation over 15 days. In contrast, October sees slightly warmer temperatures, with a minimum of 7°C (44°F) and an average of 14°C (57°F), reaching a maximum of 19°C (66°F). Precipitation is more pronounced in October, totaling 139 mm (5.5 in) over 16 days, with humidity rising to 84%. For more detailed information on October weather in Sennen, check out Sennen weather in October.

In comparing January and November weather, January features slightly cooler temperatures with a minimum of 4°C (40°F) and an average of 9°C (49°F), whereas November sees a minimum of 6°C (44°F) and an average of 12°C (53°F). Both months share a maximum temperature of 15°C (58°F for January and 60°F for November). Rainfall is more prevalent in November, accumulating 125 mm (4.9 in) over 20 days, compared to January's 87 mm (3.4 in) across 15 days. Humidity levels remain quite similar, with January at 81% and November slightly higher at 82%. For a closer look at November weather specifics, visit Sennen weather in November.

In comparing the weather between January and December, it is noticeable that January tends to be slightly cooler, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (58°F), compared to December's minimum of 6°C (43°F) and maximum of 14°C (58°F). Additionally, January experiences less precipitation, totaling 87 mm (3.4 in) over 15 days, while December sees significantly more with 150 mm (5.9 in) over 22 days. Humidity levels remain consistent at 81% in both months, contributing to the overall dampness typical of this time of year. For more specifics about December weather in Sennen, you can refer to Sennen weather in December.

Compare Sennen's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Sennen

January in Sennen brings a unique climate experience distinctly cooler and wetter compared to other months. While temperatures average around 9°C (49°F), the chill is accompanied by heightened humidity levels of 81%, making the air feel particularly crisp. Precipitation is frequent, with about 15 days experiencing rain, contributing to a total of 87 mm (3.4 in) throughout the month. This sets January apart as a time for embracing the cozy indoors or gearing up for brisk outdoor adventures. To understand more about the yearly climate variations, be sure to explore Sennen Climate.