December Weather in Stromness, United Kingdom

Last updated: March 17, 2025

December in Stromness, United Kingdom presents a chill of temperatures ranging from a comfortable maximum of 12°C (53°F) to a brisk minimum of 3°C (37°F), with an average hovering around 7°C (45°F). This month is characterized by its notable precipitation, totaling 117 mm (4.6 in) across 22 days, contributing to a high humidity level of 80%. Visitors can expect a moody maritime climate, perfect for experiencing the rugged charm of this coastal town, while ensuring they're prepared for the frequent rain and cool temperatures that December famously brings.

December Temperature in Stromness

In Stromness, United Kingdom, December marks the onset of the winter chill, with temperatures generally ranging from a minimum of 3°C (37°F) to a maximum of 12°C (53°F). This month, the average temperature dips slightly to 7°C (45°F), mirroring the transition into colder months that began with November. Notably, December's temperatures reflect a broader trend of mild winters characteristic of the region, consistently hovering around the 6°C to 8°C mark during the late autumn and early winter months. While the weather can feel brisk, the relatively moderate temperatures make for a uniquely vibrant atmosphere, where the festive spirit often flourishes amidst the crisp air.

December Weather in Stromness: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Stromness, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444343444751545554514845
Data source: Temperature data for Stromness generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Stromness

In December, Stromness, United Kingdom, experiences a notable uptick in precipitation, with 117 mm (4.6 in) of rain falling over 22 days. This marks a slight decrease from the heavier downpours seen in the preceding months of October and November, which recorded 168 mm (6.6 in) and 144 mm (5.7 in) respectively. The trend of consistent rainfall throughout the year is evident, especially as December's precipitation contributes to an overall wet winter season. With an average of 22 rainy days, December keeps the region intricately aligned with its reputation for frequent showers, making it a month where the landscape thrives on the cusp of the seasonal shift.

December Precipitation Trends in Stromness

The chart displays monthly precipitation patterns in Stromness, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec981051095361597373132168144117
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Stromness

In December, the humidity in Stromness, United Kingdom, stands at 80%, marking a slight decrease from the consistently high levels experienced in the preceding months. Throughout the year, the region witnesses a gradual increase in humidity, peaking at 88% in September. The winter months, particularly from November to December, tend to experience a marginal decline, with December's figures dipping to the lowest level since May. Despite this seasonal drop, the overall climate remains relatively humid, suggesting that even in the depths of winter, Stromness retains its characteristic dampness, embodying the essence of its maritime climate.

December Average Humidity in Stromness

This chart illustrates the average monthly humidity levels in Stromness, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec82%81%81%81%83%84%87%86%88%87%87%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Stromness

In Stromness, United Kingdom, the December UV Index remains low at 1, consistent with the preceding winter months of January and November, where the UV Index also recorded a 1. This trend indicates minimal sun exposure risk, allowing residents and visitors to enjoy outdoor activities without the worry of sunburn, as the burn time extends to 45 minutes. Following the peak summer months, where the Index reached a high of 7 in June and July, the UV levels taper off significantly in late autumn and into winter. This seasonal drop underscores the importance of adapting your sun protection habits throughout the year. For a detailed monthly breakdown and to stay informed about UV levels, visit Stromness UV Index.

Maximum UV Index Levels in Stromness for December

The chart shows the monthly maximum UV Index (UVI) for Stromness in December, 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.
JanFebMarAprMayJunJulAugSepOctNovDec113457754311
Data source: Stromness December 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.

December Sunshine in Stromness

In Stromness, United Kingdom, December culminates the year with a mere 74 hours of sunshine, continuing the trend of diminishing daylight as winter deepens. After a vibrant spring and summer—where the sun shines brightly for up to 428 hours in June—the gradual decline begins. October and November see a notable drop as twilight settles in, and by December, the stark contrast highlights the overall seasonal cycle. Despite the limited sunshine this month, the enchanting coastal landscapes and cozy atmosphere offer a unique charm, inviting residents and visitors alike to embrace the serene beauty of winter's embrace.

Monthly Sunshine Duration in Stromness: December Highlighted

The December sunshine duration represents the total number of hours Stromness experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec55h141h204h337h406h428h413h384h288h209h94h74h
Data source: Stromness December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Stromness During December

In December, Stromness, United Kingdom experiences a modest 22% chance of sunny weather, making it one of the cooler months in terms of sunlight. This probability shows a slight uptick from the preceding months; however, it remains lower than the sunnier seasons of early spring and late summer. Notably, the winter months generally feature a backdrop of overcast skies, with December standing out only slightly in terms of sunlight compared to November's 19%. As the year winds down, residents and visitors alike might want to prepare for a predominantly grey atmosphere, with brief moments of sunshine offering a refreshing contrast to the otherwise dreary weather.

Percentage of Sunny Days in December in Stromness

The chart illustrates the percentage of sunny days in Stromness throughout the year, with December 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 Stromness experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%35%19%35%27%26%15%14%20%20%20%23%
Data source: Stromness December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Stromness in December

In Stromness, United Kingdom, December marks the culmination of the year’s dwindling daylight, with just 6 hours of sunlight to brighten the winter days. As the months progress from the long summer days, which peak at 18 hours in June, the gradual decrease becomes evident. Following the vibrant light of spring and summer, autumn ushers in shorter days, eventually leading to November's 7-hour daylight. By December, the shadows lengthen, setting the stage for the long, dark winter ahead, a sharp contrast to the brightness experienced earlier in the year. As the cycle continues, residents look forward to the promising return of longer days that emerge in January, signaling the start of a new year filled with hope and light.

Average Daylight Hours in Stromness for December

The chart illustrates the variation in daylight duration in Stromness throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 3m9h 16m11h 52m14h 31m16h 57m18h 20m17h 35m15h 20m12h 45m10h 8m7h 41m6h 18m
Data source: Stromness daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Stromness

As December settles in Stromness, the winds pick up to an average speed of 8.8 m/s (20 mph), marking a shift from the peak gusts felt in November, which reached 10.7 m/s (24 mph). This month’s wind is part of a broader winter trend, where stronger breezes hint at the arrival of winter storms. After a notable dip during the summer months, characterized by average speeds around 5.1 m/s (12 mph) in July, the winds gradually regain strength as autumn approaches, ultimately culminating in this brisk December atmosphere. While the winds may be less ferocious than those experienced in the earlier months, they still carry the unmistakable chill and energy of the season, reminding us that winter is firmly at the door.

Average December Wind Speed in Stromness

The chart displays monthly wind speed patterns in Stromness, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec8.610.18.87.66.26.65.15.86.69.010.78.8 m/s
Data source: Stromness December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Stromness Compares to Other Months

The weather in Stromness changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Stromness and find detailed weather information for every month.

December and January weather show some notable similarities and differences. In December, the average temperatures are slightly higher, ranging from a minimum of 3°C (37°F) to a maximum of 12°C (53°F), while January's average dips to a minimum of 2°C (36°F) and an average of 6°C (44°F). December experiences more precipitation overall, with 117 mm (4.6 in) over 22 days compared to January's 98 mm (3.9 in) over 16 days. Humidity levels are also slightly higher in January at 82%, compared to 80% in December. For more detailed insights, you can check Stromness weather in January.

In December, the weather is slightly milder than in February, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 12°C (53°F). The month experiences more precipitation, totaling 117 mm (4.6 in) over 22 days, contributing to an overall humidity level of 80%. In contrast, February sees slightly cooler temperatures, with an average minimum of 0°C (33°F) and a maximum of 11°C (52°F). Precipitation decreases to 105 mm (4.1 in) over 19 days, while humidity remains relatively high at 81%. For more detailed insights into February weather, you can check Stromness weather in February.

In December, temperatures in Stromness tend to be milder, with a minimum of 3°C and an average of 7°C, peaking at around 12°C. The month sees significant rainfall, accumulating to about 117 mm over 22 days, and the humidity remains high at 80%. In contrast, March experiences slightly cooler temperatures, with a minimum dipping to -1°C and an average around 6°C, reaching a maximum of 10°C. While precipitation is slightly less at 109 mm over 20 days, the humidity remains comparable at 81%. For more detailed insights, you can visit Stromness weather in March.

In December, temperatures tend to hover between a minimum of 3°C (37°F) and a maximum of 12°C (53°F), with an average of 7°C (45°F). The month is relatively wet, featuring approximately 117 mm (4.6 in) of precipitation over 22 days, contributing to a high humidity level of 80%. In contrast, April experiences similar temperature ranges, with a minimum of 0°C (32°F) and the same maximum and average as December. However, the precipitation is notably lower at 53 mm (2.1 in) over just 12 days, coupled with a slightly higher humidity level of 81%. For more details on the weather in April, you can visit Stromness weather in April.

December and May showcase distinct weather characteristics, reflecting the seasonal shifts. In December, temperatures range from a chilly minimum of 3°C (37°F) to a maximum of 12°C (53°F), with an average of 7°C (45°F). The month sees significant rainfall, totaling 117 mm (4.6 in) over 22 days, along with a high humidity level of 80%. In contrast, May experiences slightly warmer conditions, with temperatures ranging from 3°C (37°F) to a maximum of 14°C (57°F), and an average temperature of 8°C (48°F). Precipitation is reduced to 61 mm (2.4 in) over just 14 days, while humidity remains relatively high at 83%. For a more detailed look at May’s weather, you can visit Stromness weather in May.

When comparing the weather in December and June, notable differences emerge in temperature, precipitation, and humidity. December features cooler temperatures, with an average of 7°C (45°F) and highs reaching only 12°C (53°F), alongside significant precipitation of 117 mm (4.6 in) across 22 days and humidity levels around 80%. In contrast, June brings milder weather with an average temperature of 11°C (52°F), a maximum of 14°C (58°F), and much lower precipitation at 59 mm (2.3 in) over 12 days, while humidity rises slightly to 84%. For a more detailed look at June weather, check out Stromness weather in June.

In December, the weather is notably colder, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 12°C (53°F) and an average of 7°C (45°F). It also sees significant precipitation, averaging 117 mm (4.6 inches) over approximately 22 days, coupled with a humidity level of 80%. In contrast, July offers a milder climate, with temperatures starting at a minimum of 9°C (49°F), averaging 12°C (55°F), and peaking at 17°C (63°F). The summer month experiences less rain, totaling around 73 mm (2.9 inches) across 15 days, yet it has a slightly higher humidity of 87%. For more specific details on July weather, you can visit Stromness weather in July.

When comparing the weather in December and August, it's clear that December is noticeably colder, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 12°C (53°F), while August enjoys milder conditions, averaging between 10°C (51°F) and 16°C (61°F). Additionally, December experiences more precipitation, with 117 mm (4.6 in) over approximately 22 days, compared to August's 73 mm (2.9 in) over just 16 days. Humidity levels are also slightly higher in August at 86%, compared to 80% in December. For a closer look at the conditions, you can visit Stromness weather in August.

When comparing the weather in December and September, December tends to be cooler with average temperatures ranging from 3°C (37°F) to 12°C (53°F), while September is milder, with averages between 9°C (48°F) and 16°C (62°F). In terms of precipitation, December sees about 117 mm (4.6 in) spread over 22 days, whereas September has slightly higher precipitation at 131 mm (5.2 in) over 19 days. Additionally, December has a lower humidity level of 80%, compared to September's 88%, making the earlier month feel more humid and potentially more uncomfortable. For a detailed look at September weather, you can visit Stromness weather in September.

In comparing the weather of December and October, December tends to be cooler, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 12°C (53°F), while October sees slightly warmer averages of 6°C (42°F) to 15°C (59°F). Additionally, December has less precipitation, totaling 117 mm (4.6 in) over 22 days, compared to October’s 168 mm (6.6 in) spread across 25 days. Humidity levels are also slightly lower in December at 80%, compared to 87% in October, making October feel a bit more humid overall. For a detailed look at October's weather, you can check out Stromness weather in October.

In comparing the weather between November and December, we notice that December experiences slightly lower average temperatures, with a minimum of 3°C (37°F) and an average of 7°C (45°F), compared to November's average of 9°C (48°F). While both months have similar minimums, December's maximum reaches only 12°C (53°F) compared to November's 13°C (56°F). Precipitation is slightly reduced in December at 117 mm (4.6 in) over 22 days, while November sees a higher total of 144 mm (5.7 in) over 23 days. Additionally, humidity is generally lower in December at 80%, compared to November's 87%, highlighting a shift towards drier conditions as the year comes to a close. For a more detailed look at November weather patterns, you can visit Stromness weather in November.

Compare Stromness's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Stromness

As December settles in Stromness, the weather transitions to a damp and chillier ambiance, contrasting with the milder temperatures experienced in preceding months. With an average of 7°C (45°F), December invites cooler days and markedly higher humidity levels of around 80%, making it feel quite brisk. Rainfall becomes a frequent occurrence, with 22 precipitation days contributing to an overall total of 117 mm (4.6 in) of moisture, further enhancing the wintery feel. Despite the cooler temperatures, those wandering through Stromness this month will discover a unique charm in its picturesque winter landscape. For a deeper dive into Stromness weather patterns, visit Stromness Climate.