Last updated: March 17, 2025
In Swansea, United Kingdom, March brings a dynamic blend of weather as temperatures range from a brisk minimum of -4°C (25°F) to a pleasant maximum of 15°C (59°F), with an average temperature settling around 8°C (46°F). This transitional month experiences 114 mm (4.5 in) of rain dispersed over 18 days, resulting in a notably high humidity level of 86%. As spring approaches, residents can expect a mix of chilly spells and occasional milder days, making it a time for layered clothing and readiness for brief, wet spells amidst the emerging bloom of nature.
March in Swansea, United Kingdom marks the gradual transition from winter's chill to spring's embrace. With temperatures dipping as low as -4°C (25°F) at night and averaging around 8°C (46°F) during the day, it's a time of brisk air and budding blooms. The maximum temperatures can reach 15°C (59°F), hinting at the warmer days just around the corner. As the month progresses, the chill of February seems to dissipate, setting the stage for a delightful shift toward milder weather in April. It’s a month of contrasts, where you can still expect the occasional frosty morning alongside glimpses of sunshine, reflecting the region's unpredictable spring climate.
In March, Swansea experiences a notable transition in its precipitation patterns, with 114 mm (4.5 in) of rainfall over 18 days. This amount places March slightly below the previous two months; January and February were wetter with 106 mm and 128 mm, respectively. The increase in rainy days hints at the shift towards spring, promising a mix of sunshine and showers in the lead-up to April. Despite being less moist than earlier in the year, March’s precipitation underscores the city’s reputation for variable weather, as it acts as a bridge to the drier months ahead, with April showcasing a significant dip to just 56 mm.
As March ushers in the transition to spring, humidity in Swansea, United Kingdom starts to show a slight decline, measuring 86% this month, down from the steady 88% seen in January and February. This gradual decrease hints at the approaching warmer months, with humidity continuing to drop to 84% in April and 80% in May. The trend reveals a shift from the dampness of winter towards a more moderate climate, reflecting Swansea's seasonal ebb and flow. As we look ahead, the promise of summer is signaled by even lower humidity levels, culminating in a comfortable 70% by July, making way for more pleasant days ahead.
As March arrives in Swansea, the UV Index rises to 4, signaling a shift from the low exposure levels seen in January and February to a moderate category. This means that while sunbathers can enjoy the outdoors, they should be mindful of their time in the sun, with a burn time of just 30 minutes. This increase marks the beginning of a trend towards higher UV levels as spring unfolds—by April, the index climbs to 6, indicating a high exposure category that calls for enhanced sun protection. For those interested in tracking these changes and safeguarding their skin, comprehensive information can be found at Swansea UV Index.
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March in Swansea heralds the arrival of spring, bringing with it a significant surge in sunshine hours, with 219 hours basking the city in light. This increase is a clear upward trend from the previous months; January and February offered only 93 and 151 hours, respectively. The gradual rise of sunshine not only brightens the landscape but also sets the stage for the even more radiant April, which boasts 333 hours. As winter gives way to warmer days, Swansea's skies become increasingly vibrant, inviting residents and visitors alike to embrace the outdoors and enjoy the invigorating change in weather.
As winter fades and spring approaches, the likelihood of sunny weather in Swansea begins to climb, with March boasting a 31% chance of sunshine. This marks a notable increase compared to the preceding months of January and February, which see just 24% and 25% respectively. With the arrival of spring, residents can anticipate more frequent sunny days, paving the way for April's impressive 56% likelihood. However, March serves as a pivotal transition, hinting at the warmer, brighter days to come while still holding onto some of winter's chill.
As the days grow longer in March, Swansea experiences a significant increase in daylight, boasting 11 hours compared to the 9 hours in February. This transition marks the start of a more vibrant season, with sunlight gradually intensifying in the coming months. Following March, daylight continues to blossom, reaching a generous 13 hours in April and peaking at 16 hours during the height of summer in June and July. This pattern of steadily lengthening days not only signals the end of winter's gloom but also invites residents and visitors alike to embrace the outdoor activities that flourish as spring unfolds. Each month leading up to summer showcases a beautiful ascent in natural light, ultimately enriching the coastal charm of Swansea.
As March sweeps into Swansea, the city experiences an average wind speed of 6.2 m/s (14 mph), a slight decline from February's gusty 7.4 m/s (17 mph). This transitional month marks a notable dip compared to the winter months, which typically showcase higher speeds, peaking in December at 7.3 m/s (16 mph). Interestingly, the wind speed in March foreshadows a consistent trend of decreasing winds leading into the warmer spring months, with April dipping further to 4.7 m/s (10 mph). This pattern suggests a gentle calming effect as nature prepares for the blooming season, inviting residents and visitors alike to enjoy the refreshing breezes that define Swansea's coastal charm.
The weather in Swansea changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of March's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Swansea and find detailed weather information for every month.
In comparing the weather of March and January, we see notable differences in temperature and precipitation. March generally has a minimum temperature of -4°C (25°F), with averages around 8°C (46°F) and maximums reaching 15°C (59°F). In contrast, January sees slightly milder temperatures, with minimums at 0°C (32°F), averages of 7°C (45°F), and maximums at 14°C (57°F). Precipitation levels are similar, with March experiencing 114 mm (4.5 in) over 18 days, while January records 106 mm (4.2 in) over 14 days. Humidity remains high in both months, at 86% in March and 88% in January. For more detailed information, you can check out Swansea weather in January.
Comparing the weather in March and February reveals some noteworthy differences. In March, temperatures range from a minimum of -4°C (25°F) to a maximum of 15°C (59°F), with an average of 8°C (46°F), slightly higher than February's range of -1°C (30°F) to 13°C (55°F), averaging 7°C (45°F). Precipitation levels in March are slightly lower at 114 mm (4.5 in) over 18 rainy days, compared to February's 128 mm (5.0 in) across 17 days. Humidity remains relatively high in both months, with March averaging 86% and February at 88%. For more detailed insights into February weather, visit Swansea weather in February.
March and April present a noticeable shift in weather patterns. In March, temperatures range from a chilly minimum of -4°C (25°F) to a maximum of 15°C (59°F), with an average of 8°C (46°F). The month is quite rainy, experiencing 114 mm (4.5 in) of precipitation over 18 days, and humidity levels are high at 86%. In contrast, April sees milder temperatures with a minimum of 2°C (36°F) and a maximum of 17°C (63°F), averaging 9°C (49°F). Additionally, precipitation decreases significantly to 56 mm (2.2 in) across only 9 days, and humidity slightly drops to 84%. For more detailed information, you can check Swansea weather in April.
March and May present distinct contrasts in weather conditions. In March, temperatures can plunge to a biting low of -4°C (25°F) and average around 8°C (46°F), with a maximum reaching 15°C (59°F). This month is characterized by high humidity at 86% and considerable precipitation, totaling 114 mm (4.5 in) over 18 days. In contrast, May offers a more temperate climate with minimum temperatures of 5°C (40°F), an average of 12°C (53°F), and a maximum of 21°C (70°F). With only 79 mm (3.1 in) of precipitation over 11 days, humidity drops slightly to 80%. For those interested in the specific climate details of May, Swansea weather in May offers further insights.
March and June present contrasting weather conditions. In March, temperatures can dip to a chilly minimum of -4°C (25°F), while the average is a brisk 8°C (46°F) and peaks at a moderate 15°C (59°F). The month is characterized by higher precipitation, with 114 mm (4.5 in) falling over 18 days and a notable humidity level of 86%. In contrast, June offers milder weather, with temperatures ranging from a minimum of 9°C (48°F) to a comfortable maximum of 24°C (76°F). Precipitation is less frequent, totaling 93 mm (3.6 in) over 15 days, and humidity decreases to 80%. For a detailed look at June weather, visit Swansea weather in June.
March and July display contrasting weather conditions. In March, temperatures can dip as low as -4°C (25°F) during the night, with an average of 8°C (46°F) and daytime highs reaching 15°C (59°F). The month is characterized by higher precipitation, with 114 mm (4.5 in) falling over 18 days and humidity levels averaging 86%. In stark contrast, July offers a much warmer climate, featuring minimum temperatures of 11°C (52°F), an average of 17°C (62°F), and maximum temperatures peaking at 24°C (76°F). Precipitation decreases to 91 mm (3.6 in) over 13 days, accompanied by lower humidity at around 70%. For a deeper look at July weather, check out Swansea weather in July.
March and August present quite different weather profiles. In March, temperatures are significantly cooler, with a minimum of -4°C (25°F) and an average of just 8°C (46°F), while August sees milder conditions with temperatures ranging from a minimum of 12°C (53°F) to an average of 17°C (62°F). Both months experience similar precipitation levels, with March receiving 114 mm (4.5 in) and August slightly higher at 123 mm (4.8 in), yet both have 18 rainy days. Additionally, March is notably more humid at 86%, compared to August's lower humidity of 73%. For a detailed overview of August's weather, you can check Swansea weather in August.
March and September present contrasting weather conditions, highlighting the transition from late winter to early autumn. In March, temperatures fluctuate between a chilly minimum of -4°C (25°F) and a mild maximum of 15°C (59°F), with an average of 8°C (46°F), while the month is marked by significant precipitation, totaling 114 mm (4.5 in) over 18 rainy days and high humidity at 86%. In contrast, September enjoys milder temperatures, with a minimum of 9°C (48°F) and a pleasant maximum of 24°C (76°F), averaging 15°C (60°F). The month sees slightly higher precipitation at 120 mm (4.7 in) but over fewer days (15), accompanied by reduced humidity at 79%. For more details on the specific weather patterns in September, you can check Swansea weather in September.
March is characterized by cooler temperatures, with a minimum that can drop to -4°C (25°F) and an average of 8°C (46°F). In contrast, October experiences milder weather, with a minimum of 3°C (38°F) and an average of 13°C (55°F). Both months see significant precipitation, but October is wetter, receiving 184 mm (7.2 in) over 19 days compared to March's 114 mm (4.5 in) across 18 days. Additionally, humidity levels remain high in both months, with October slightly higher at 89% compared to March's 86%. For more detailed information, you can check Swansea weather in October.
March and November present distinct weather patterns, each with its own character. In March, temperatures range from a chilly minimum of -4°C (25°F) to a mild maximum of 15°C (59°F), with an average of 8°C (46°F). Precipitation is relatively high, totaling 114 mm (4.5 in) over 18 days, and humidity is at 86%, contributing to a damp atmosphere. In contrast, November offers a slightly warmer climate, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 16°C (60°F), averaging around 10°C (50°F). Rainfall is also more pronounced in November, with 143 mm (5.6 in) over 19 days and a humidity of 90%. For a closer look at the weather specifics for this month, check out Swansea weather in November.
In March, the weather begins to transition from winter with temperatures ranging from a chilly -4°C (25°F) at night to a pleasant 15°C (59°F) during the day. Despite average conditions being relatively mild at 8°C (46°F), the month sees significant precipitation, accumulating to 114 mm (4.5 in) over 18 days, and humidity levels remain high at 86%. In contrast, December is slightly warmer, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 13°C (55°F), and an average of 8°C (47°F). However, it is also wetter, with 184 mm (7.3 in) of rainfall occurring over 21 days, and humidity climbs to 89%. For more details on December conditions, visit Swansea weather in December.
As March unfolds in Swansea, it marks a notable transition from the winter chill to the early whispers of spring. While the average temperature hovers around a brisk 8°C (46°F), the potential for warmer days can catch residents by surprise, with maximums reaching up to 15°C (59°F). However, don't forget your umbrella; this month often sees 18 days of precipitation, contributing to a relatively high humidity level of 86%. Such conditions contrast sharply with the milder and more stable temperatures of the summer months ahead. To explore more about Swansea's unique climate patterns, visit Swansea Climate.