July Weather in Llanberis, United Kingdom

Last updated: March 17, 2025

In Llanberis, United Kingdom, July brings a blend of mild warmth and frequent rain. With a maximum temperature reaching 25°C (77°F) and an average of 15°C (60°F), outdoor adventures are still inviting despite the weather's unpredictability. However, visitors should be prepared for rain, as 105 mm (4.1 in) of precipitation falls over approximately 15 days throughout the month, resulting in a humidity level of 78%. This combination of warmth and moisture creates lush landscapes, making July an enchanting time to explore the natural beauty of this region.

July Temperature in Llanberis

In July, Llanberis welcomes the warmer embrace of summer, with temperatures generally ranging from a minimum of 9°C (48°F) to a pleasant maximum of 25°C (77°F). This month showcases an inviting average temperature of 15°C (60°F), making it one of the most comfortable times to explore the breathtaking landscapes of this mountainous region. Notably, July stands out from the cooler months, such as January with its chill of -1°C (30°F), and even June, which offers max temperatures of 26°C (79°F) but lacks the same warmth. As summer peaks, visitors can enjoy longer daylight hours and vibrant greenery, enhancing the allure of outdoor adventures amid Llanberis' stunning scenery.

July Weather in Llanberis: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Llanberis, 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 Llanberis 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.

July Precipitation in Llanberis

In July, Llanberis experiences a noticeable dip in precipitation, with an average of 105 mm (4.1 in) falling over approximately 15 days. This slight decrease from June's 106 mm marks a continuation of the region's fluctuating weather patterns, as rainfall begins to taper off from the wetter months in spring and early summer. While July's precipitation is comparable to May, it still falls short of the high values seen in the preceding months. As the season progresses into August, residents can expect a significant uptick in rainfall, with 162 mm (6.4 in) forecasted across 22 days. This cyclical trend highlights Llanberis' characteristic variability, where summer months can oscillate between balmy days and drenching showers, setting the stage for a dynamic Welsh climate.

July Precipitation Trends in Llanberis

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

In Llanberis, United Kingdom, July brings a noticeable dip in humidity, recorded at 78%, making it one of the driest months of the year. This decline follows a trend of decreasing moisture levels from the wetter winter months, which peak in January at a high of 89%. As spring transitions into summer, humidity gradually decreases, reaching its lowest point in July before slightly rebounding in August at 79%. This seasonal pattern highlights the region's shift from the heavy, damp conditions of winter to a more temperate climate in the heart of summer, providing a refreshing reprieve for residents and visitors alike.

July Average Humidity in Llanberis

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

July UV Index in Llanberis

In July, Llanberis experiences a very high UV Index of 8, matching June's intensity and indicating peak sun exposure for the year. With a burn time of just 15 minutes, it's essential to take precautions, such as seeking shade and applying sunscreen regularly. This month joins May and June in showcasing a significant increase in UV radiation, reflecting the summer's vibrant outdoor activity potential. As the year progresses, the UV Index starts to decline slightly in August, transitioning back into more moderate levels by early autumn. To stay updated on UV conditions, be sure to check the latest details at Llanberis UV Index.

Maximum UV Index Levels in Llanberis for July

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

July Sunshine in Llanberis

In July, the sun really shines in Llanberis, with an impressive 421 hours of sunshine marking it as the peak of the year. Following a steady climb from 93 hours in January to 415 hours in May, July showcases the culmination of the warmer months. June's slight dip to 404 hours does little to dampen the enthusiasm, as July reigns supreme, flanked by August with a still commendable 383 hours. This trend highlights a beautiful crescendo of sunlight throughout the spring and summer, encouraging outdoor pursuits in the enchanting landscapes of Snowdonia. Beyond July, the days gradually shorten, with September beginning a gentle descent into the quieter months with 315 hours, leaving behind a summer filled with light and adventure.

Monthly Sunshine Duration in Llanberis: July Highlighted

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

Chance of Sun in Llanberis During July

In Llanberis, July offers a brighter outlook with a 36% chance of sunny weather, marking it as one of the more favorable months for enjoying the outdoors. This improvement follows a gradual increase from the gloomier winter months, where the likelihood of sunshine hovers around 20% to 25%. As spring unfolds, the chances rise, peaking in April at 46%, but July stands out as a prime summer month, outperforming both June and August. This pattern reinforces the notion that while Llanberis’s weather can be unpredictable, July promises more opportunities for basking in the sun amid the stunning backdrop of the Welsh mountains.

Percentage of Sunny Days in July in Llanberis

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

Daylight Hours in Llanberis in July

As July rolls into Llanberis, the daylight reaches its zenith at 16 hours, marking the culmination of a steady increase since the depths of winter. Beginning the year with a mere 8 hours in January, the gradual extension of daylight is a hallmark of the transition into summer, with each month witnessing a delightful progression. By June, the days stretch to 16 hours, and remarkably, this peak continues into July, granting residents and visitors ample time to enjoy the stunning Welsh scenery. However, as August approaches, the daylight begins a gentle decline, foreshadowing the transition to autumn. This rhythmic ebb and flow of daylight not only shapes the local climate but also invites outdoor adventures throughout the vibrant summer months.

Average Daylight Hours in Llanberis for July

The chart illustrates the variation in daylight duration in Llanberis throughout the year, with July 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: Llanberis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Llanberis

In July, Llanberis experiences a notable dip in wind speed, averaging just 3.2 m/s (7 mph), making it one of the calmest months of the year. This gentle breeze contrasts sharply with the brisk winds of earlier months, such as February and October, where speeds soar to 6.6 m/s (15 mph) and 6.4 m/s (14 mph) respectively. The trend throughout the summer showcases a gradual decline from the mild winds of April through June, culminating in July's serene conditions. As the height of summer approaches, residents and visitors alike can enjoy the tranquil atmosphere, perfect for outdoor adventures in the stunning landscapes of Snowdonia.

Average July Wind Speed in Llanberis

The chart displays monthly wind speed patterns in Llanberis, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.36.65.73.84.74.03.2 m/s4.43.76.45.55.9
Data source: Llanberis July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Llanberis Compares to Other Months

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

In July, the weather is significantly warmer, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 25°C (77°F), while January experiences much cooler temperatures, averaging between -1°C (30°F) and 13°C (55°F). Although July receives less precipitation at 105 mm (4.1 in) over 15 days, January sees slightly more rainfall at 121 mm (4.8 in) across 16 days, contributing to a wetter winter. Additionally, January's humidity is higher at 89%, compared to July's 78%, which can make the winter months feel even chillier. For a detailed look at January weather specifics, visit Llanberis weather in January.

When comparing the weather in July and February, notable contrasts emerge. July showcases a milder climate with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 25°C (77°F), accompanied by about 105 mm (4.1 in) of precipitation over 15 days. In contrast, February experiences colder temperatures, with averages between -3°C (28°F) and a maximum of 15°C (60°F), paired with significantly higher precipitation at 162 mm (6.4 in) across 19 days. Additionally, February's humidity at 88% adds to the overall chill, while July's humidity is more moderate at 78%. For more detailed insights, you can read about the specific conditions in Llanberis weather in February.

When comparing the weather in July and March, there is a striking contrast in temperature and precipitation. July enjoys a more moderate range, with average temperatures ranging from 9°C (48°F) at night to a pleasant maximum of 25°C (77°F) during the day. In contrast, March experiences much cooler temperatures, with a minimum of -5°C (23°F) and an average of just 7°C (44°F). Precipitation is also noteworthy; while July sees about 105 mm (4.1 in) of rainfall over 15 days, March is wetter, with 152 mm (6.0 in) over 19 days. Furthermore, humidity levels are higher in March at 86%, compared to 78% in July. For a detailed look at March weather, you can visit Llanberis weather in March.

The weather in July is noticeably warmer than in April, with average temperatures reaching 15°C (60°F) compared to April's 8°C (47°F). July experiences a higher maximum temperature of 25°C (77°F), while April peaks at 19°C (66°F). Precipitation is also more frequent in July, with 105 mm (4.1 in) of rain over 15 days, whereas April has 62 mm (2.4 in) over 12 days. Additionally, July's humidity is slightly lower at 78%, compared to April's 84%, indicating that July tends to feel a bit drier despite the increased rainfall. For more details, check out Llanberis weather in April.

When comparing the weather in July and May, July tends to be warmer with an average temperature of 15°C (60°F), compared to May's cooler average of 11°C (52°F). The maximum temperature in July can reach up to 25°C (77°F), while May has a slightly lower maximum of 23°C (73°F). Precipitation is more frequent in July, with 15 days of rain totaling 105 mm (4.1 in), whereas May experiences just 12 rainy days and less total precipitation at 87 mm (3.4 in). Interestingly, humidity levels are quite similar, hovering around 78% in July and 79% in May. For more detailed information about May's weather, you can visit Llanberis weather in May.

In comparing the weather of July and June, both months exhibit relatively mild temperatures, though July tends to be slightly warmer overall. July presents a temperature range from a minimum of 9°C (48°F) to a maximum of 25°C (77°F), with an average of 15°C (60°F). In contrast, June's temperatures range from a minimum of 7°C (46°F) to a maximum of 26°C (79°F), averaging at 14°C (57°F). Precipitation levels are similar, with July experiencing 105 mm (4.1 in) over 15 days, while June has slightly higher precipitation at 106 mm (4.2 in) across 16 days. Humidity in July averages 78%, which is marginally lower than June's 81%. For a closer look at June's weather patterns, you can visit Llanberis weather in June.

In comparing the weather of July and August, we find that both months exhibit similar average temperatures, maintaining a minimum of around 9°C (48°F) and an average of 15°C (60°F). However, August experiences a slight decrease in maximum temperature, peaking at 24°C (75°F) compared to July's 25°C (77°F). Notably, August sees increased precipitation, totaling 162 mm (6.4 in) over 22 days, which is significantly higher than July's 105 mm (4.1 in) across 15 days. Humidity levels also remain fairly consistent, with August at 79% compared to July's 78%. For more detailed insights on the weather, you can check Llanberis weather in August.

In July, the weather tends to be warmer, featuring a minimum temperature of 9°C (48°F) and an average of 15°C (60°F), peaking at a comfortable 25°C (77°F). However, this month also brings considerable rainfall, with about 105 mm (4.1 in) spread over 15 days and humidity levels at 78%. In contrast, September sees slightly cooler temperatures, with a minimum of 6°C (42°F) and an average of 14°C (57°F), but it can reach up to 26°C (78°F) on warmer days. The month is also marked by increased precipitation, totaling 146 mm (5.7 in) over 18 days, and higher humidity at 85%. For specific weather details, you can check out Llanberis weather in September.

In comparing the weather between July and October, notable differences emerge in temperature and precipitation. July experiences milder conditions with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 25°C (77°F), while October sees cooler averages, with a minimum of 1°C (33°F) and a maximum of 20°C (68°F). Precipitation significantly increases in October, totaling 206 mm (8.1 in) over 22 days, compared to July's 105 mm (4.1 in) over 15 days. Furthermore, humidity is higher in October, reaching 90%, compared to July's 78%. For more detailed insights on October weather, you can check Llanberis weather in October.

In comparing the weather of July and November in Llanberis, a distinct shift in conditions is evident. July typically experiences milder temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 25°C (77°F), with an average of 15°C (60°F), while November sees significantly cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 14°C (58°F), averaging around 8°C (48°F).

Precipitation also differs markedly; July has about 105 mm (4.1 in) of rain over 15 days, whereas November is wetter, receiving 176 mm (6.9 in) over 21 days, suggesting a more frequent occurrence of rain during the later month. Additionally, humidity levels are higher in November at 91% compared to July's 78%, contributing to a chillier and more damp atmosphere. For more detailed information, check Llanberis weather in November.

In July, the weather in Llanberis is relatively mild, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 25°C (77°F) and an average of 15°C (60°F). However, the month experiences significant rainfall, totaling 105 mm (4.1 in) across approximately 15 days, with humidity around 78%. In contrast, December brings much colder conditions, with temperatures dipping as low as -2°C (29°F) and averaging only 7°C (45°F), while the maximum reaches just 12°C (54°F). This month is also wetter, with precipitation measuring 203 mm (8.0 in) over 24 days and increased humidity of 89%. For more detailed information, you can check out Llanberis weather in December.

Compare Llanberis's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Llanberis

July in Llanberis brings a delightful blend of warm days and refreshing rainfall, making it a unique month compared to the cooler, drier spells of spring and autumn. With maximum temperatures reaching a pleasant 25°C (77°F), locals and visitors alike enjoy an inviting climate perfect for outdoor activities. However, the month is not without its share of rain, with 15 days experiencing precipitation that totals approximately 105 mm (4.1 in), lending a damp freshness to the lush landscapes. This combination of warmth and humidity—with average levels around 78%—creates a vibrant, thriving environment, different from the milder weather seen earlier in the year. To explore more about how the weather interacts with the stunning natural beauty of this region, visit Llanberis Climate.