March Weather in Porthmadog, United Kingdom

Last updated: March 17, 2025

March in Porthmadog showcases a dynamic weather pattern characterized by a maximum temperature reaching 16°C (61°F), while averaging around 7°C (44°F). The month can be quite chilly, dipping to a minimum of -5°C (23°F), making it essential to dress warmly. With an impressive precipitation total of 152 mm (6.0 in) spread over 19 days, it's a month where rain is quite the frequent visitor. The atmosphere remains notably humid, with an average humidity level of 86%, creating a refreshing yet brisk maritime climate.

March Temperature in Porthmadog

As March arrives in Porthmadog, temperatures begin to emerge from the winter chill, signaling the onset of spring. The month sees a minimum temperature dipping to -5°C (23°F), but an average of 7°C (44°F) and a maximum of 16°C (61°F) suggest a gentle warming trend. Compared to the preceding months, this slight increase highlights a gradual transition from February’s colder embrace. As days slowly lengthen and sunlit hours increase, locals and visitors alike can enjoy the mild climate, paving the way for the blooming beauty of April. With temperatures steadily rising, March serves as a refreshing prelude to the warmer months ahead.

March Weather in Porthmadog: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Porthmadog, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424344475257605957524744
Data source: Temperature data for Porthmadog 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.

March Precipitation in Porthmadog

March in Porthmadog sees a noteworthy continuation of the area's wet winter season, with precipitation reaching 152 mm (6.0 in) over 19 days. This amount marks a slight reduction from the robust rainfall observed in February, yet it remains significant, indicative of the transition into spring. As winter recedes, the frequency of rain persists, setting the stage for the wetter months ahead. The rainfall in March, while less than in February, contributes to a cumulative annual total that underscores Porthmadog's reputation for abundant precipitation, keeping the landscape lush and vibrant.

March Precipitation Trends in Porthmadog

The chart displays monthly precipitation patterns in Porthmadog, with values for each month alongside March's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec1211621526287106105162146206176203
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Porthmadog

As March arrives in Porthmadog, the air begins to show a slight shift in humidity levels, dropping to 86% from February’s 88%. This subtle decrease signals the transition into spring, where humidity typically continues to ease as the days grow warmer. Notably, this month marks the start of a trend towards lower humidity that will persist through April, reaching 84%, before spiking again in the autumn months. As winter fades, residents can expect a mix of refreshing breezes and the promise of drier conditions ahead, making March a pivotal point in the annual climate cycle of this charming coastal town.

March Average Humidity in Porthmadog

This chart illustrates the average monthly humidity levels in Porthmadog, with March's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how March's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Porthmadog

As March unfolds in Porthmadog, the UV Index begins to climb, reaching a moderate level of 4. This marks a noticeable trend from the low values seen in the earlier months of the year, indicating that while the sun's intensity is increasing, precautions are still advisable for prolonged exposure. With a burn time of just 30 minutes, it’s essential to be mindful of sun safety as spring approaches. As the months progress, the UV Index will continue to rise, highlighting the need for greater sun protection during the sunnier days ahead. For more detailed information on UV levels throughout the year, check out Porthmadog UV Index.

Maximum UV Index Levels in Porthmadog for March

The chart shows the monthly maximum UV Index (UVI) for Porthmadog in March, 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Porthmadog March 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.

March Sunshine in Porthmadog

As March arrives in Porthmadog, the days grow brighter and the promise of spring is unmistakable. The town basks in 228 hours of sunshine, a significant leap from January's mere 93 hours and February's 162 hours. This upward trend heralds the departure of winter's gloom, inviting locals and visitors alike to embrace longer, sunnier days. With April on the horizon boasting 335 hours, the warmth and light will only continue to flourish, painting the landscape in vibrant hues and encouraging outdoor adventures. March is truly the herald of a sun-kissed season ahead in this charming corner of the United Kingdom.

Monthly Sunshine Duration in Porthmadog: March Highlighted

The March sunshine duration represents the total number of hours Porthmadog experiences direct sunlight during the month of March, excluding cloudy or obstructed periods. This chart compares the sunshine duration of March with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec93h162h228h335h415h404h421h383h315h238h126h109h
Data source: Porthmadog March Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Porthmadog During March

March in Porthmadog marks a notable shift in the likelihood of sunny weather, with a 25% chance of sunshine—a slight increase from the preceding months of January and February, which hover around 20% and 22% respectively. This upward trend hints at the onset of spring, as the chance of sun continues to rise in the following months, peaking in April at a striking 46%. While March may not yet guarantee abundant sunshine, it certainly signals a gradual transition toward more favorable weather and the blooming landscapes that accompany it. As the days lengthen and temperatures begin to climb, residents and visitors alike can look forward to the increasing possibility of enjoying the sun's warmth.

Percentage of Sunny Days in March in Porthmadog

The chart illustrates the percentage of sunny days in Porthmadog throughout the year, with March 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 Porthmadog experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%22%25%46%30%27%36%25%22%16%20%20%
Data source: Porthmadog March chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Porthmadog in March

As winter transitions into spring, March in Porthmadog, United Kingdom, marks a delightful increase in daylight, with an average of 11 hours illuminating the days. This surge from 9 hours in February signifies not only the approach of warmer weather but also a palpable sense of rejuvenation in the landscape. The gradual lengthening of daylight, culminating in an impressive 14 hours by April, highlights the steady return of longer days as nature awakens from its winter slumber. As the month progresses, residents can bask in the increasing sunlight, setting the stage for the vibrant and lively months ahead, where the bloom of spring and the glory of summer are just around the corner.

Average Daylight Hours in Porthmadog for March

The chart illustrates the variation in daylight duration in Porthmadog throughout the year, with March highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 10m9h 51m11h 54m14h15h 51m16h 50m16h 18m14h 38m12h 36m10h 31m8h 38m7h 37m
Data source: Porthmadog daylight hours, calculated by summing the hours between sunrise and sunset for each day.

March Winds in Porthmadog

As winter transitions to spring, March in Porthmadog, United Kingdom, brings a gentle yet noticeable shift in wind patterns. With an average wind speed of 5.7 m/s (13 mph), March maintains a briskness that outpaces the calmer April, while still being milder than the gustier February. This month serves as a bridge, offering a hint of spring's promise and a gradual reduction in wind intensity that peaks in the chill of winter and gently tapers into the warmer months. Interestingly, March's winds, while less fierce than those of February, are significantly stronger than what follows in April, creating a refreshing atmosphere ideal for seaside strolls and outdoor adventures.

Average March Wind Speed in Porthmadog

The chart displays monthly wind speed patterns in Porthmadog, with values for each month shown alongside March's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how March's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.36.65.7 m/s3.84.74.03.24.43.76.45.55.9
Data source: Porthmadog March wind data, generated using information from the Copernicus Climate Change Service.

How March Weather in Porthmadog Compares to Other Months

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

In comparing the weather of March to that of January, we see some notable differences. March experiences a broader temperature range, with minimums dropping to -5°C (23°F) and maximums reaching 16°C (61°F), compared to January's milder minimum of -1°C (30°F) and a maximum of 13°C (55°F). Additionally, March has higher average precipitation at 152 mm (6.0 in) over 19 days, whereas January records slightly less at 121 mm (4.8 in) over 16 days. Humidity levels are also similar, with March at 86% and January slightly higher at 89%. For more insights into the specifics of January weather, you can check out Porthmadog weather in January.

In comparing the weather between February and March, we see slight differences in temperature and precipitation patterns. March tends to be a bit cooler with an average temperature of 7°C (44°F) compared to February's 6°C (43°F). The minimum temperatures in March reach -5°C (23°F), slightly lower than February's -3°C (28°F). While both months experience similar levels of precipitation, March has a total of 152 mm (6.0 in) over 19 days, just under February's 162 mm (6.4 in) across the same number of days. Humidity levels also remain close between the two months, with March at 86% and February at 88%. For those looking for more detailed weather insights, you can check out Porthmadog weather in February.

March weather is generally colder and wetter compared to April. In March, temperatures range from a low of -5°C (23°F) to a high of 16°C (61°F), with an average of 7°C (44°F) and significant precipitation totaling 152 mm (6.0 in) over 19 days. The humidity is quite high at 86%.

In contrast, April sees a milder temperature range with minimums at 0°C (33°F), an average of 8°C (47°F), and maximums reaching 19°C (66°F). Additionally, precipitation significantly decreases to 62 mm (2.4 in) over just 12 days, and humidity slightly lowers to 84%. For more detailed weather information, you can check Porthmadog weather in April.

March weather typically features colder temperatures, with minimums reaching as low as -5°C (23°F) and an average of 7°C (44°F). In contrast, May brings milder conditions, starting at a minimum of 2°C (36°F) and averaging around 11°C (52°F), with maximums soaring up to 23°C (73°F). Precipitation is more frequent in March, occurring on 19 days and totaling 152 mm (6.0 in), while May sees fewer rainy days—just 12—and significantly less precipitation at 87 mm (3.4 in). Overall, May's climate is more favorable for outdoor activities, with lower humidity levels at 79% compared to March's 86%. For more detailed insights, check Porthmadog weather in May.

March weather is characterized by cooler temperatures, with a minimum of -5°C (23°F) and an average of 7°C (44°F), while June offers a much warmer experience, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 26°C (79°F). Precipitation is more frequent in March, with 152 mm (6.0 in) recorded over 19 days, compared to June's 106 mm (4.2 in) over 16 days, suggesting a drier atmosphere as summer approaches. Additionally, humidity levels are slightly higher in March at 86%, compared to June's 81%, providing a distinct transition from the chill of early spring to the warmth of early summer. For more details about June weather, you can visit Porthmadog weather in June.

In March, the temperatures are quite cool, ranging from a chilly minimum of -5°C (23°F) to a maximum of 16°C (61°F), with an average of 7°C (44°F). Humidity is high at 86%, and the month sees considerable precipitation, with 152 mm (6.0 in) falling over 19 days. In contrast, July experiences milder weather, with temperatures ranging from a minimum of 9°C (48°F) to a comfortable maximum of 25°C (77°F), averaging 15°C (60°F). July also has less rainfall, totaling 105 mm (4.1 in) over 15 days, and lower humidity at 78%. This shift indicates a significant transition from the cold, damp conditions of March to the warmer, drier atmosphere typical of summer. For more details on July weather in Porthmadog, you can visit Porthmadog weather in July.

In March, the weather is notably cold with average temperatures ranging from a minimum of -5°C (23°F) to a maximum of 16°C (61°F). It experiences significant precipitation of 152 mm (6.0 in) over 19 days, coupled with high humidity at 86%. In contrast, August offers a more temperate climate, where the temperatures vary from a minimum of 9°C (49°F) to a maximum of 24°C (75°F). While it sees slightly higher precipitation at 162 mm (6.4 in) over 22 days, the humidity is lower at 79%. For a detailed look at August weather specifics, you can visit Porthmadog weather in August.

March and September present contrasting weather patterns, showcasing the transition from winter to autumn. In March, temperatures range from a chilly -5°C (23°F) at their lowest to a mild 16°C (61°F) at their peak, with an average of 7°C (44°F). The month is characterized by notable precipitation, totaling 152 mm (6.0 in) over 19 days, alongside high humidity at 86%. In contrast, September offers a more temperate climate, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 26°C (78°F), averaging 14°C (57°F). Precipitation is slightly lower at 146 mm (5.7 in) over 18 days, with humidity remaining comparable at 85%. For a closer look at September weather in the area, you can check Porthmadog weather in September.

March and October display distinct weather patterns, reflective of their transitional seasons. In March, temperatures range from a chilly -5°C (23°F) at night to a mild 16°C (61°F) during the day, with an average temperature of 7°C (44°F). This month experiences around 152 mm (6.0 in) of precipitation spread over 19 days, accompanied by a humidity level of 86%. In contrast, October sees slightly warmer temperatures, with a minimum of 1°C (33°F), an average of 11°C (53°F), and a maximum of 20°C (68°F). Precipitation increases to 206 mm (8.1 in) across 22 days, and humidity rises to 90%. For a closer look at the specific conditions, check out the detailed Porthmadog weather in October.

March and November in Porthmadog reveal distinct weather patterns. March experiences cooler temperatures, with a minimum of -5°C (23°F) and an average of 7°C (44°F), while November sees a milder minimum of 1°C (34°F) and an average of 8°C (48°F). Both months are characterized by frequent precipitation, but November has slightly higher rainfall, totaling 176 mm (6.9 in) over 21 days compared to March's 152 mm (6.0 in) over 19 days. Humidity levels are also notable, with November at 91%, slightly higher than March's 86%. For more details, you can explore Porthmadog weather in November.

In comparing the weather conditions of March and December, both months exhibit cool temperatures, but there are some notable differences. March has a minimum temperature of -5°C (23°F) and an average high of 16°C (61°F), while December's temperatures range from a minimum of -2°C (29°F) to a maximum of 12°C (54°F). Precipitation is higher in December, totaling 203 mm (8.0 in) over 24 days, compared to March's 152 mm (6.0 in) over 19 days. Additionally, humidity levels are slightly elevated in December at 89%, compared to 86% in March. For more detailed insights, you can check Porthmadog weather in December.

Compare Porthmadog's Climate with Cities Worldwide

Conclusion: What to Expect From March Weather in Porthmadog

March in Porthmadog marks a transition into spring, showcasing an array of weather patterns that set it apart from the winter months. With temperatures ranging from chilly lows to mild highs, residents experience a refreshing change, though the lingering cold can still catch many off guard. Frequent rain characterizes the month, contributing to a significant portion of the annual precipitation and emphasizing the region's naturally lush landscape. The humidity remains high, enhancing the coolness that often permeates the air. As the days grow longer and flowers begin to bloom, March serves as a reminder that warmer days are just around the corner. For a deeper dive into the climatic nuances of this vibrant area, visit Porthmadog Climate.