October Weather in Harlech, United Kingdom

Last updated: March 17, 2025

October in Harlech, United Kingdom brings a varied climate that showcases the region's beauty and unpredictability. With maximum temperatures reaching 21°C (70°F), the month offers some pleasant days; however, the average temperature hovers around 11°C (52°F), while chilly nights can drop to a brisk -2°C (28°F). Visitors can expect frequent rainfall, with 161 mm (6.3 in) of precipitation spread over 19 days, contributing to the lush landscapes that define the area. The high humidity level of 90% adds to the feeling of richness in the air, making October a month of contrasts for those exploring this charming coastal town.

October Temperature in Harlech

In October, temperatures in Harlech, United Kingdom begin to reflect the transition into autumn, with a noticeable drop as the month progresses. The minimum temperature hovers around -2°C (28°F), while the average wraps up at a comfortable 11°C (52°F), peaking at a maximum of 21°C (70°F). This month's warmth is a gentle reminder of the summer's end, contrasting sharply with the colder depths of winter that follow. Notably, October's average is on par with its predecessors, maintaining a steady climate that invites crisp walks through the stunning Welsh landscape. As daylight wanes and colorful leaves blanket the ground, this month offers a refreshing yet mild atmosphere, perfect for enjoying the natural beauty of the area.

October Weather in Harlech: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Harlech, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414244485258615956514643
Data source: Temperature data for Harlech 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.

October Precipitation in Harlech

In October, Harlech, United Kingdom, experiences a notable uptick in precipitation, recorded at 161 mm (6.3 in) over 19 days of rain. This continuation of the wetter trend seen in the preceding months contrasts sharply with the dryer spring months, such as April and May, which brought only 58 mm (2.3 in) and 85 mm (3.3 in), respectively. The onset of autumn not only brings an increase in rainfall but also more frequent rainy days, positioning October as the second wettest month of the year, just behind December. This pattern emphasizes the shift towards the winter season, inviting a cozy change as the landscape transforms under the weight of the fall rain.

October Precipitation Trends in Harlech

The chart displays monthly precipitation patterns in Harlech, with values for each month alongside October's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec10514513858859691144130161138170
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Harlech

As October rolls in, Harlech experiences a notable uptick in humidity, reaching 90%—the highest for the month. This increase follows a gradual decline from the more humid months of winter, with September at 85%, and reflects a typical autumn pattern. The shift back towards higher humidity levels suggests the approach of winter, where the air tends to become denser and more moisture-laden. Comparatively, the transition from the drier summer months, where July and August hovered around 78-79%, highlights the seasonal ebb and flow of humidity. As autumn deepens, residents can expect the pervasive dampness that characterizes the region, paving the way for the winter months ahead, which see humidity levels stabilizing at 91% in November.

October Average Humidity in Harlech

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

October UV Index in Harlech

As October arrives in Harlech, the UV Index dips to a moderate 4, indicating a decrease from the high levels experienced in the summer months. With a burn time of approximately 30 minutes, this month provides an opportunity for outdoor activities with a lower risk of skin damage compared to the peak summer indices. Notably, after the intense UV exposure of June and July, which reached a staggering 8, the fall months show a gradual decline, moving through September's 5 and firmly settling in at October's 4. This trend of decreasing UV levels as the seasons change highlights the importance of adjusting sun protection practices accordingly. For more detailed information on UV levels throughout the year, visit Harlech UV Index.

Maximum UV Index Levels in Harlech for October

The chart shows the monthly maximum UV Index (UVI) for Harlech in October, 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: Harlech October 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.

October Sunshine in Harlech

In Harlech, October shines with a generous 239 hours of sunshine, making it a vibrant month as the long days of summer yield to the crispness of autumn. The sunshine hours peak in July and August, with a remarkable 420 and 385 hours, respectively, while gradually tapering off through the fall. Interestingly, October enjoys more sunlight than the bleak winter months that follow, presenting a welcome transition before the grey skies of November and December take over. This trend highlights October as a time of lingering warmth and brightness, making it a delightful month for locals and visitors alike to soak in the last remnants of the season's sun.

Monthly Sunshine Duration in Harlech: October Highlighted

The October sunshine duration represents the total number of hours Harlech experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec94h158h225h330h411h402h420h385h313h239h125h106h
Data source: Harlech October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Harlech During October

In Harlech, October brings a notable dip in the likelihood of sunny days, with the chance of sunshine falling to just 15%. This trend reflects a general decline in sunny weather as the year progresses, particularly following the more promising spring months. After basking in April's 47% likelihood of sun, the transition into autumn shows a steady decrease, marking October as one of the cloudier months. As the days grow shorter and cooler, residents and visitors can expect a shift toward more overcast skies, making those rare sunny spells all the more cherished during this transitional time of year.

Percentage of Sunny Days in October in Harlech

The chart illustrates the percentage of sunny days in Harlech throughout the year, with October 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 Harlech experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%20%25%47%28%24%36%23%21%15%22%16%
Data source: Harlech October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Harlech in October

As October settles in Harlech, the daylight begins to wane, with the sun gracing the sky for about 10 hours each day. Following the bright and lengthy days of summer, which peaked at 16 hours in June and July, the transition to autumn brings a noticeable shift. Notably, the daylight duration dips from September's 12 hours, reflecting the gradual approach of winter. This month serves as a poignant reminder of the changing seasons, where shorter days usher in cozy evenings and the vibrant tapestry of autumn unfolds, marking the cycle of light that has seen its peak just a few months earlier.

Average Daylight Hours in Harlech for October

The chart illustrates the variation in daylight duration in Harlech throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 13m9h 52m11h 54m13h 59m15h 48m16h 46m16h 15m14h 36m12h 36m10h 32m8h 41m7h 41m
Data source: Harlech daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Harlech

As October sets in, Harlech experiences a noticeable uptick in wind speed, averaging 4.6 m/s (10 mph). This increase marks a departure from the calmer summer months, where winds dipped as low as 2.5 m/s (5 mph) in July. The transition from the gentle breezes of early summer to the more robust autumn winds reflects a shift in the season, breathing life into the coastal landscape. Compared to the lighter winds of September at 2.9 m/s (6 mph), October’s gusts foreshadow the winter months ahead, which also carry vibrant breezes, averaging 4.4 m/s (10 mph) in December. So, as autumn unfolds, residents and visitors can expect the refreshing embrace of those invigorating October winds, celebrating nature's dynamic rhythm in this charming corner of the UK.

Average October Wind Speed in Harlech

The chart displays monthly wind speed patterns in Harlech, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.05.14.43.03.63.02.53.42.94.6 m/s3.94.4
Data source: Harlech October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Harlech Compares to Other Months

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

October and January exhibit notable differences in weather patterns. In October, temperatures range from a minimum of -2°C (28°F) to an average of 11°C (52°F), peaking at a comfortable 21°C (70°F). This month also sees higher precipitation levels, with 161 mm (6.3 in) over approximately 19 days and a humidity level of 90%. In contrast, January experiences slightly colder temperatures, with a minimum of -3°C (26°F), an average of 5°C (42°F), and a maximum of 13°C (56°F). Precipitation is lower, totaling 105 mm (4.2 in) across about 14 days, and humidity remains comparable at 89%. Overall, October tends to be milder and wetter than the chillier, drier conditions of January. For more detailed insights, you can check Harlech weather in January.

In comparing the weather between October and February, October tends to have milder temperatures with an average of 11°C (52°F) and maximums reaching 21°C (70°F), while February is cooler, averaging 6°C (43°F) and peaking at 18°C (65°F). The precipitation levels are somewhat similar, with October receiving 161 mm (6.3 in) over 19 days and February slightly less at 145 mm (5.7 in) across 17 days. Additionally, both months experience high humidity, with October at 90% and February just a touch lower at 88%. For more insights into February weather, visit Harlech weather in February.

In October, the weather in Harlech features a significant range in temperatures, with a minimum of -2°C (28°F) and a comfortable average of 11°C (52°F), peaking at a pleasant 21°C (70°F). However, this month also brings considerable precipitation, totaling 161 mm (6.3 in) over 19 days, coupled with high humidity levels at 90%. In contrast, March experiences cooler conditions, with temperatures ranging from a minimum of -6°C (21°F) to an average of 7°C (44°F), reaching a maximum of 18°C (65°F). Despite slightly lower precipitation at 138 mm (5.5 in) over 18 days and moderate humidity at 86%, March can still be quite wet. For more insight into March weather, you can visit Harlech weather in March.

In comparing the weather between October and April, we see notable differences in both temperature and precipitation. October typically experiences a broader temperature range, with average highs of 21°C (70°F) and lows dipping to -2°C (28°F), while April's temperatures are slightly cooler, averaging a maximum of 22°C (72°F) and a minimum of -3°C (28°F). Additionally, October is significantly wetter, with 161 mm (6.3 in) of precipitation over 19 days, compared to April's 58 mm (2.3 in) over just 12 days. Humidity is also higher in October at 90%, compared to 84% in April, contributing to a more overcast feel as autumn sets in. For more insights on April weather, visit Harlech weather in April.

October and May present contrasting weather patterns, each with its unique characteristics. October tends to be cooler, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 21°C (70°F), while May is generally milder, boasting temperatures that span from a minimum of 0°C (32°F) to a more comfortable maximum of 27°C (80°F). Precipitation is more pronounced in October, with 161 mm (6.3 in) over 19 days compared to May’s 85 mm (3.3 in) over just 13 days. Additionally, October has a higher humidity level at 90%, whereas May feels drier with a humidity of 79%. For a closer look at the specifics of May weather, you can check Harlech weather in May.

When comparing the weather in October and June, notable differences emerge. October experiences cooler temperatures, with a minimum of -2°C (28°F) and an average of 11°C (52°F), peaking at 21°C (70°F). In contrast, June tends to be much warmer, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 28°C (83°F) and an average of 14°C (58°F). Furthermore, October is marked by higher precipitation, accumulating 161 mm (6.3 in) over 19 days, while June sees less rainfall at 96 mm (3.8 in) over 16 days. The humidity in October also remains higher at 90%, compared to 81% in June. For a closer look at June weather specifics, you can check out Harlech weather in June.

The weather in October and July presents a stark contrast, particularly in terms of temperature and precipitation. October sees much cooler conditions with minimum temperatures dropping to around -2°C (28°F) and an average of 11°C (52°F), making it significantly chillier than July, which enjoys a more pleasant range with minimums of 6°C (44°F) and an average of 16°C (61°F). Additionally, July reaches a maximum temperature of 29°C (84°F), while October’s maximum is a moderate 21°C (70°F). Precipitation is also markedly different; October experiences more rainfall, totaling 161 mm (6.3 in) over approximately 19 days, compared to July's lighter 91 mm (3.6 in) across 14 days. Humidity levels are higher in October at 90%, while July has a more comfortable 78%. For a detailed look at July weather, visit Harlech weather in July.

In comparing the weather of October and August, it's clear that October is significantly cooler, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 21°C (70°F), compared to August's milder temperatures that range from 7°C (45°F) to 27°C (80°F). Additionally, October experiences higher precipitation, with 161 mm (6.3 in) over 19 days, compared to August's 144 mm (5.7 in) across 20 days. The humidity in October is also notably higher at 90%, compared to August's 79%, creating a much damp and chilly atmosphere. For a closer look at the weather specifics in August, check out Harlech weather in August.

In comparing the weather patterns between September and October, October tends to be cooler, with minimum temperatures dropping to -2°C (28°F) compared to September's milder 2°C (36°F). The average temperature in October is also slightly lower at 11°C (52°F), while September enjoys a warmer average of 13°C (56°F) and can reach a maximum of 27°C (82°F). Additionally, October experiences more precipitation, totaling 161 mm (6.3 in) over 19 days, whereas September has 130 mm (5.1 in) across 16 days. Humidity levels are also higher in October at 90%, compared to September's 85%. For a more detailed look at September's climate, you can visit Harlech weather in September.

The weather in October tends to be milder, with average temperatures around 11°C (52°F) and highs reaching up to 21°C (70°F), while November sees a drop in average temperature to 8°C (47°F), with a maximum of only 15°C (59°F). Precipitation levels are slightly lower in November at 138 mm (5.4 in) compared to 161 mm (6.3 in) in October, although both months experience similar rainfall frequency with precipitation on 19 days. Additionally, November's humidity remains high at 91%, just above October's 90%, contributing to a damp and chilly atmosphere. For more details on the weather pattern in November, you can check out Harlech weather in November.

October and December exhibit distinct weather patterns, with October generally being milder. In October, temperatures fluctuate from a low of -2°C (28°F) to a high of 21°C (70°F), with an average of 11°C (52°F). Rainfall is significant, totaling 161 mm (6.3 in) over approximately 19 days, accompanied by high humidity at 90%. In contrast, December features a slightly colder temperature range, with a minimum of -3°C (26°F) and a maximum of 13°C (55°F), averaging at 6°C (44°F). Precipitation increases slightly to 170 mm (6.7 in), occurring over about 20 days, while humidity remains comparable at 89%. For a more detailed look at December conditions, you can explore Harlech weather in December.

Compare Harlech's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Harlech

October in Harlech presents a captivating transition into the heart of autumn, characterized by cooler temperatures and an increase in precipitation. While the days can still see peaks of warmth, the chilly minimums remind us that winter is approaching. The month is notably distinguished by its high humidity, often causing a misty ambiance that envelops the landscape. With rain gracing nearly two-thirds of the days, October is a stark contrast to the drier summer months, encouraging visitors to embrace the cozy charm of indoor attractions. For a deeper understanding of weather patterns in this beautiful region, explore Harlech Climate.