July Weather in Lerwick, United Kingdom

Last updated: March 17, 2025

In Lerwick, United Kingdom, July weather offers a compelling blend of cool temperatures and frequent rainfall. The maximum temperature reaches a mild 17°C (63°F), while the average stays at a comfortable 12°C (54°F), dipping to a cooler minimum of 8°C (48°F). Visitors should prepare for an atmosphere characterized by high humidity at 89%, which, combined with 69 mm (2.7 in) of precipitation over approximately 12 days, creates a distinctly damp climate. This month exemplifies the quintessential maritime weather of the Shetland Islands, where a light jacket and an umbrella are essentials for exploring the stunning coastal scenery.

July Temperature in Lerwick

In Lerwick, United Kingdom, July ushers in the warmest temperatures of the year, showcasing a delightful shift from the chill of earlier months. With a minimum of 8°C (48°F) and a comforting average of 12°C (54°F), residents and visitors alike embrace a more temperate climate. The maximum temperature peaks at 17°C (63°F), providing just enough warmth for outdoor adventures and coastal activities. This month marks a notable rise from June, where temperatures hover around 10°C (51°F), signaling a gradual transition toward the summer's peak. As the days grow longer and sunnier, July stands out as a time for exploration and enjoying the natural beauty of Lerwick.

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

The chart illustrates July temperature patterns in Lerwick, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444343434651545553504745
Data source: Temperature data for Lerwick 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.

July Precipitation in Lerwick

In July, Lerwick experiences a moderate shift in precipitation patterns, with an average of 69 mm (2.7 in) of rainfall over 12 days. This marks a notable increase from the drier months of May and June, which both recorded approximately 47 mm (1.8 in) and 53 mm (2.1 in), respectively. However, July's precipitation is relatively mild compared to the wetter months ahead, such as September and October, which can see rain totals exceeding 100 mm. The consistent rise in rainfall as the year progresses highlights Lerwick's characteristic maritime climate, where summer brings a blend of sun and showers, setting the stage for the vibrant greenery of late summer and early autumn.

July Precipitation Trends in Lerwick

The chart displays monthly precipitation patterns in Lerwick, 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.
JanFebMarAprMayJunJulAugSepOctNovDec96981035147547074115146133137
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

July Humidity in Lerwick

In July, Lerwick experiences its highest humidity of the year, reaching a notable 89%. This increase is part of a gradual upward trend observed from the beginning of the year, where the humidity rises steadily from 79% in January to 84% in June. The summer months usher in a peak in moisture levels, with July and August both showcasing elevated readings, while September through November see a slight decline yet remain relatively humid at 87% to 85%. This consistent humidity paints a picture of Lerwick’s maritime climate, where the warm summer air holds onto moisture, creating a lush atmospheric experience for residents and visitors alike.

July Average Humidity in Lerwick

This chart illustrates the average monthly humidity levels in Lerwick, 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.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%81%82%84%84%89%87%87%87%85%78%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Lerwick

In July, Lerwick experiences a UV Index of 6, indicating a high exposure category, which means you're at risk of harm from unprotected sun exposure in as little as 25 minutes. This is a slight decrease from June’s peak of 7, but it still highlights the need for precautions against sunburn. As summer unfolds, it's essential to be mindful of increasing UV levels, as the months before July saw a gradual rise from the low 1 in January to a moderate 4 in April and 5 in May. With the UV Index expected to dip slightly again in August, it’s crucial to stay informed and prepared for these fluctuations in sun intensity. For more details on UV trends and safety, check out the Lerwick UV Index.

Maximum UV Index Levels in Lerwick for July

The chart shows the monthly maximum UV Index (UVI) for Lerwick 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.
JanFebMarAprMayJunJulAugSepOctNovDec112457654211
Data source: Lerwick 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 Lerwick

In Lerwick, United Kingdom, July shines as a highlight of the summer, boasting 430 hours of glorious sunshine that outshines the preceding months. The transition from the brisk winter and early spring, which saw only 50 and 192 hours respectively, gradually builds to a radiant crescendo in midsummer. After the steady climb through April and May, where daylight hours increased significantly, July emerges as the peak of sunshine, celebrating the height of summer's warmth. As the days begin to shorten again in August with 376 hours of sun, July remains a beloved destination for those seeking the essence of summer basked in warmth and light.

Monthly Sunshine Duration in Lerwick: July Highlighted

The July sunshine duration represents the total number of hours Lerwick 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.
JanFebMarAprMayJunJulAugSepOctNovDec50h127h192h335h415h420h430h376h285h202h89h58h
Data source: Lerwick July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lerwick During July

In Lerwick, July typically sees a 17% chance of sunshine, making it one of the months with the least likelihood of clear skies. This trend of limited sunny days is echoed in the overall summer months, as the chance of sun dips compared to earlier spring months like April and May, which hover around 30% and 22% respectively. Interestingly, the sunniest months are actually found in the winter and early spring, such as January and February, with chances as high as 32% and 33%. As the year progresses, the likelihood of sunny weather diminishes, reinforcing the perception of Lerwick’s often overcast and moody climate during the peak of summer.

Percentage of Sunny Days in July in Lerwick

The chart illustrates the percentage of sunny days in Lerwick 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 Lerwick experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%33%18%33%22%31%18%14%14%22%20%20%
Data source: Lerwick July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lerwick in July

In Lerwick, United Kingdom, July sees a notable peak in daylight duration, boasting 17 hours of sunlight that contributes to the vibrant summer atmosphere. This month, while slightly less than June's impressive 18 hours, still maintains a significant amount of daylight, encouraging outdoor activities and community events. As the year progresses, the daylight gradually declines from the summer highs, transitioning to a more subdued 15 hours in August, before waning further into autumn. This seasonal rhythm highlights the contrast between the long, bright days of summer and the shorter, cozy hours that define the rest of the year, making July a quintessential time for enjoying the natural beauty of Lerwick.

Average Daylight Hours in Lerwick for July

The chart illustrates the variation in daylight duration in Lerwick throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 46m9h 8m11h 51m14h 38m17h 14m18h 44m17h 55m15h 30m12h 47m10h 2m7h 27m5h 57m
Data source: Lerwick daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Lerwick

In July, Lerwick experiences some of its lightest winds of the year, with an average speed of just 5.3 m/s (12 mph). This notable dip follows a consistent decline from the breezier spring months, peaking at 10.1 m/s (23 mph) in February and gradually easing through May and June, which both register at 6.4 m/s (14 mph). As the summer progresses, wind speeds begin to pick up again in August at 5.9 m/s (13 mph), foreshadowing the return of stronger gusts in the fall months. This seasonal trend highlights Lerwick's characteristic summer calm, providing a brief respite before the winds pick up again in autumn.

Average July Wind Speed in Lerwick

The chart displays monthly wind speed patterns in Lerwick, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.810.19.38.76.46.45.3 m/s5.97.69.410.79.2
Data source: Lerwick July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Lerwick Compares to Other Months

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

In comparing the weather between July and January, July experiences milder temperatures with averages ranging from a minimum of 8°C (48°F) to a maximum of 17°C (63°F), while January is cooler, featuring lows of 2°C (35°F) and highs reaching 11°C (52°F). July is also relatively humid, with 89% humidity, whereas January has a lower humidity level of 79%. Precipitation is fairly prominent in both months, but January sees slightly more at 96 mm (3.8 in) over 18 days compared to July's 69 mm (2.7 in) across 12 days. For more detailed information, you can check Lerwick weather in January.

When comparing the weather in July and February, we see notable differences in temperature and precipitation patterns. In July, temperatures range from a mild minimum of 8°C to a comfortable maximum of 17°C, with an average of 12°C. Meanwhile, February is much cooler, with minimum temperatures dropping to 0°C and a maximum of only 10°C, averaging around 6°C. Notably, February experiences higher precipitation levels at 97 mm over 19 days, compared to July's 69 mm over 12 days. Humidity feels more pronounced in July at 89%, while February's humidity sits at a lower 79%. For more detailed insights, check out Lerwick weather in February.

July and March exhibit notable differences in weather patterns. July experiences milder temperatures, with averages hovering around 12°C (54°F) and a maximum of 17°C (63°F), while March is significantly cooler, averaging only 6°C (43°F) and peaking at 9°C (49°F). Precipitation is higher in March, with 103 mm (4.1 in) over 20 days, compared to July's 69 mm (2.7 in) spread across 12 days. Additionally, humidity levels are slightly higher in July at 89%, while March remains comfortable at 81%. For more details on the weather in March, visit Lerwick weather in March.

In comparing the weather between April and July, it's clear that July is significantly warmer, with average temperatures reaching 12°C (54°F) compared to April's average of 6°C (44°F). The maximum temperature in July can climb to 17°C (63°F), while April peaks at just 10°C (51°F). Precipitation is slightly higher in July at 69 mm (2.7 in) over 12 days, compared to 51 mm (2.0 in) across 13 days in April, indicating that while July may be warmer, it is also somewhat wetter. Additionally, the humidity is notably higher in July at 89%, compared to 82% in April. For more detailed information, you can check Lerwick weather in April.

In comparing the weather between July and May, July tends to be warmer, with an average temperature of 12°C (54°F), reaching highs of 17°C (63°F), compared to May's average of 8°C (47°F) and a maximum of 12°C (54°F). Additionally, July experiences higher precipitation levels, with 69 mm (2.7 in) over 12 days, while May sees less rainfall at 47 mm (1.8 in) over 13 days. Humidity remains relatively high in both months, with July at 89% and May at 84%. For more detailed insights, you can check out Lerwick weather in May.

When comparing the weather in June and July, we notice that July tends to be slightly warmer, with average temperatures ranging from a minimum of 8°C (48°F) to a maximum of 17°C (63°F), compared to June's range of 6°C (44°F) to 14°C (58°F). Additionally, July experiences more precipitation, with 69 mm (2.7 in) falling over 12 days, whereas June has 53 mm (2.1 in) of rainfall over the same number of days. Humidity levels are also higher in July at 89%, compared to 84% in June. For a closer look at the weather specifics for June, you can check Lerwick weather in June.

In comparing the weather between July and August, July tends to be slightly warmer overall, with average temperatures ranging from a minimum of 8°C (48°F) to a maximum of 17°C (63°F). In contrast, August experiences a narrower temperature range, with minimums of 10°C (50°F) and maximums reaching only 15°C (60°F). Both months have considerable precipitation, but August sees a little more with 74 mm (2.9 in) compared to July's 69 mm (2.7 in), and it also has more rainy days—15 in August versus 12 in July. Humidity levels are quite similar in both months, making for a consistently damp and cooler climate. For more detailed information, you can visit Lerwick weather in August.

In comparing the weather of July and September, we see some notable differences. Both months share similar minimum temperatures of around 8°C, while the average temperature remains constant at 12°C. However, July typically enjoys a slightly warmer maximum temperature of 17°C compared to September's high of 15°C. When it comes to precipitation, September is notably wetter, with 115 mm of rainfall over 18 days, contrasting with July's 69 mm over just 12 days. Additionally, September's humidity is slightly lower at 87%, compared to July's 89%. For more detailed insights, you can check out Lerwick weather in September.

In comparing the weather between July and October, we see a notable shift in temperatures and precipitation patterns. July tends to be slightly warmer, with minimum temperatures around 8°C (48°F) and maximums reaching 17°C (63°F), while October sees a drop, with minimums of 5°C (42°F) and maximums of 14°C (57°F). Additionally, October experiences significantly higher precipitation, totaling 146 mm (5.8 in) over 23 days, compared to July's 69 mm (2.7 in) over 12 days. Humidity levels remain relatively high in both months, with July at 89% and October at 87%. For more detailed information about October weather, you can visit Lerwick weather in October.

In July, the weather is relatively mild, with temperatures ranging from a minimum of 8°C (48°F) to a maximum of 17°C (63°F) and an average of 12°C (54°F). However, it experiences a good amount of precipitation, totaling 69 mm (2.7 in) over about 12 days, coupled with high humidity at 89%. In contrast, November sees cooler temperatures, with a minimum of 3°C (38°F) and an average of 8°C (47°F), peaking at 12°C (54°F). The month is significantly wetter, with 133 mm (5.2 in) of rainfall across 23 days, and slightly lower humidity at 85%. For more detailed information, you can refer to Lerwick weather in November.

In comparison to July, December weather in Lerwick is noticeably cooler and wetter. July experiences temperatures ranging from a minimum of 8°C to a maximum of 17°C, with an average of 12°C and a precipitation total of 69 mm over 12 days. In contrast, December sees lower temperatures, with a minimum of 3°C and a maximum of 11°C, averaging just 7°C. Additionally, December is significantly wetter, with 137 mm of precipitation occurring over 25 days, alongside a drop in humidity to 78%. For more detailed information on December weather in Lerwick, you can visit Lerwick weather in December.

Compare Lerwick's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Lerwick

In Lerwick, July emerges as a distinct month, offering a mild respite from the chill of previous months. With average temperatures hovering around 12°C, it is the warmest time of the year, inviting locals and visitors alike to enjoy outdoor activities despite occasional rainfall. While the month sees about 12 days of precipitation, the majority of July still boasts a vibrant atmosphere. Humidity remains high, creating a lush, green landscape. Overall, July presents a unique blend of warmth and moisture, distinguishing it from the cooler, drier months that precede it. For a deeper dive into Lerwick’s weather patterns, check out Lerwick Climate.