Last updated: February 24, 2025
In Friday Harbor during July, temperatures typically range from a mild 11°C (52°F) at night to a comfortable 20°C (68°F) during the day, with an impressive average of 14°C (58°F). The month sees a modest precipitation total of 16 mm (0.6 in), occurring over just 3 days, which allows for plenty of sunshine and outdoor activities. With an average humidity level of 84%, visitors can expect a refreshing maritime climate perfect for exploring the stunning natural beauty of the area.
In July, Friday Harbor experiences a pleasant shift in temperatures, marking it as one of the warmest months of the year. With minimums averaging 11°C (52°F) and maxima reaching up to 20°C (68°F), this month brings a perfect combination of warmth without the sweltering heat typical of many summer destinations. The average temperature of 14°C (58°F) invites locals and visitors alike to enjoy outdoor activities, showcasing the idyllic charm of this U.S. harbor town. As the temperatures gradually rise from the slightly cooler June, July's warmth sets the stage for vibrant summer days, encouraging exploration of the surrounding natural beauty.
In July, Friday Harbor experiences a significant drop in precipitation, with only 16 mm (0.6 in) of rain recorded over just 3 days. This stark contrast to the wetter months preceding it showcases the region's transition into a drier summer period. As spring gives way to summer, the rainfall decreases notably from 39 mm (1.5 in) in May and 32 mm (1.3 in) in June, highlighting a trend of reduced moisture that allows for more sunshine and outdoor activities. This pattern continues into August, where precipitation remains minimal, providing residents and visitors with ample opportunities to enjoy the picturesque landscapes and vibrant marine life that the San Juan Islands are renowned for.
In July, Friday Harbor experiences an average humidity of 84%, reflecting a slight dip from the preceding months. Throughout the year, humidity levels remain relatively high, particularly in the winter and fall, with January and February reaching peaks of 86%. Interestingly, the summer months gradually transition to lower humidity levels, as evidenced by June's 83% and August's 77%. This trend suggests a seasonal shift, providing a more comfortable atmosphere during the warmer months while still retaining the characteristic moistness of the Pacific Northwest climate. As the year progresses into autumn, humidity rises again, highlighting the region's dynamic weather patterns.
During July, Friday Harbor experiences intense sun exposure, with a UV Index of 9, which is categorized as very high. This means that individuals can incur sunburn in just 15 minutes of unprotected skin exposure. The trend from earlier months shows a marked increase in UV levels, climbing sharply from a moderate index of 5 in March to a staggering 9 in both June and July. Following July, UV levels drop slightly in August but remain in the very high category at 8, reminding us that sun safety is essential during this peak summer period. For more details on UV levels throughout the year, check out the complete data for Friday Harbor UV Index.
UV Risk Categories
In Friday Harbor, July shines as the pinnacle of summer, basking in an impressive 390 hours of sunshine. This peak highlights a vibrant upward trend, as the town gradually emerges from the winter months. Beginning with a modest 87 hours in January, the sun-drenched days steadily increase, culminating in June with 353 hours. The warm, sunny embrace of July invites residents and visitors alike to relish outdoor adventures and scenic views, though the sun begins to wane slightly in August with 351 hours. Overall, the data reflects a season of light where July stands out as a golden month, embodying the essence of summer in this picturesque coastal paradise.
In Friday Harbor, July shines as one of the sunniest months of the year, boasting an impressive 77% chance of sunny weather. This significant increase from earlier months reflects a clear trend toward brighter and warmer days as summer settles in, following a notable jump from 58% in June. While the early months typically linger in the low to mid-30s percentile for sunny days, by the time July arrives, the sunshine really takes center stage, outshining both the preceding months and those to follow. Such favorable conditions make July an ideal time for outdoor activities and enjoying the natural beauty of the Pacific Northwest.
In July, Friday Harbor basks in approximately 15 hours of daylight, marking a slight decrease from the peak of 16 hours experienced in June. This month continues the trend of abundant sunlight characteristic of the early summer, where days are long and vibrant, ideal for outdoor activities and enjoying the beauty of the surrounding nature. As the year progresses into August, daylight hours will further decrease to 14 hours, signaling the gradual shift towards autumn. The overall trend from January to December illustrates a clear seasonal rhythm, with daylight peaking in the summer months before tapering off, creating a harmonious cycle that enriches the area’s charm throughout the year.
In July, the wind in Friday Harbor settles into a gentle rhythm, with an average speed of 4.3 m/s (10 mph). This marks a continuation of the mild conditions observed in June, creating a pleasant, breezy atmosphere perfect for summer activities. The trend shows a gradual decline from the higher winds of early winter, peaking in December at 6.7 m/s (15 mph), and then tapering to summer's calm embrace. As the winds soften, July invites both residents and visitors to enjoy the serene beauty of the harbor, where the light winds are ideal for sailing and other water activities. Overall, this mid-summer period reflects a consistent, gentle breeze that complements the tranquil charm of the season.
The weather in Friday Harbor 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 Friday Harbor and find detailed weather information for every month.
July and January present starkly contrasting weather patterns. In July, temperatures range from a minimum of 11°C (52°F) to a maximum of 20°C (68°F), with an average of 14°C (58°F). This month experiences relatively low precipitation, totaling just 16 mm (0.6 in) over approximately 3 days, and humidity levels sit at 84%. In contrast, January is much colder, with temperatures hitting a minimum of -3°C (27°F) and peaking at 11°C (52°F), averaging 7°C (44°F). This winter month is characterized by significantly higher precipitation, accumulating 143 mm (5.6 in) over 16 days, and only slightly higher humidity at 86%. For more details on January weather specifics, check out Friday Harbor weather in January.
When comparing the weather in July and February, it’s clear that the two months present stark contrasts. July features milder temperatures, with a minimum of 11°C (52°F) and an average of 14°C (58°F), while February experiences much colder conditions, with a minimum of -3°C (27°F) and an average of just 6°C (42°F). In terms of precipitation, July is relatively dry with only 16 mm (0.6 in) over 3 days, whereas February sees significantly more rainfall, totaling 126 mm (5.0 in) over 17 days. Humidity levels are quite similar, with July at 84% and February slightly higher at 85%. For a detailed look at February weather, you can visit Friday Harbor weather in February.
In comparing the weather between July and March, notable differences emerge in both temperature and precipitation. July enjoys milder conditions with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 20°C (68°F), coupled with low precipitation of just 16 mm (0.6 in) over three days. In stark contrast, March experiences much cooler temperatures, averaging between 2°C (35°F) and 12°C (55°F), along with significantly higher precipitation levels at 84 mm (3.3 in) spread across 14 days. Humidity remains relatively similar, with July at 84% and March at 86%. For a more detailed look at the climate, check out Friday Harbor weather in March.
In comparing the weather between July and April, July generally experiences milder temperatures with a minimum of 11°C (52°F) and an average of 14°C (58°F), peaking at a maximum of 20°C (68°F). In contrast, April's temperatures are cooler, with a minimum of 4°C (39°F) and an average of 9°C (48°F), culminating in a maximum of 14°C (57°F). While July sees only 16 mm (0.6 in) of precipitation over just 3 days, April is significantly wetter, with 65 mm (2.6 in) falling across 13 days. Both months have fairly high humidity, with July at 84% and April slightly higher at 86%. For a more detailed look at April's weather specifics, you can refer to Friday Harbor weather in April.
In comparing the weather between May and July, we see notable differences in temperature and precipitation levels. July typically features a higher temperature range, with minimums around 11°C (52°F) and average maximums reaching 20°C (68°F), compared to May, which has a minimum of 6°C (44°F) and an average maximum of 18°C (64°F). Additionally, July experiences lower precipitation, with only 16 mm (0.6 in) over 3 days, while May sees nearly triple that amount at 39 mm (1.5 in) across 7 days. Humidity levels are relatively similar, at 84% in July and 81% in May. For a closer look at weather specifics, you can check Friday Harbor weather in May.
In comparing the weather of July and June, both months exhibit similar temperature ranges with July having slightly warmer averages. July sees minimum temperatures of 11°C (52°F) and an average of 14°C (58°F), while June features a minimum of 10°C (49°F) and an average of 13°C (55°F). Interestingly, both months share a maximum temperature of 20°C (68°F for July and 69°F for June). However, June is noticeably wetter, with 32 mm (1.3 in) of precipitation over 6 days, compared to July's 16 mm (0.6 in) over just 3 days. Humidity levels remain comparable, with July at 84% and June at 83%. For a more detailed look, check out Friday Harbor weather in June.
July and August exhibit quite similar weather patterns, with both months experiencing mild temperatures and comparable levels of precipitation. In July, the temperatures range from a minimum of 11°C (52°F) to a maximum of 20°C (68°F), with an average of 14°C (58°F) and humidity at 84%. August shows a slight increase in minimum temperature, starting at 12°C (55°F), while the average temperature rises to 15°C (59°F) and the maximum remains stable at 20°C (69°F). Precipitation in both months is similar, with July receiving 16 mm (0.6 in) and August just slightly less at 15 mm (0.6 in), and both months experiencing rain on three days. Additionally, humidity decreases in August to 77%. For more detailed information, check out the Friday Harbor weather in August.
In comparing the weather of July and September, we see that both months share similar temperature ranges, with July having a slightly warmer average of 14°C (58°F) compared to September's 13°C (57°F). Both months feature a maximum temperature of 20°C (68°F), while the minimum temperature remains constant at roughly 11°C (51-11°C or 52°F). However, September experiences significantly more precipitation, with 68 mm (2.7 in) falling over 9 days, compared to July's lighter 16 mm (0.6 in) over just 3 days. Additionally, humidity levels dip slightly from 84% in July to 76% in September. For more detailed weather insights specific to September, you can visit Friday Harbor weather in September.
In July, the weather is relatively mild, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 20°C (68°F), and only a modest amount of rainfall at 16 mm (0.6 in) over just three days. In contrast, October brings significantly cooler temperatures, with averages between 5°C (41°F) and 15°C (60°F), and a considerable increase in precipitation, with 128 mm (5.1 in) accumulated over 15 rainy days. The humidity also rises slightly in October, reaching 88%, compared to July's 84%. For more detailed insights into October's weather, you can visit Friday Harbor weather in October.
In comparing the weather between July and November, a noticeable shift occurs in both temperature and precipitation. July boasts a more temperate range, with minimum temperatures around 11°C (52°F) and maximums reaching up to 20°C (68°F). The month sees relatively low precipitation, totaling only 16 mm (0.6 in) over just three days, alongside a humidity level of 84%. In stark contrast, November experiences cooler conditions, with temperatures dropping to a minimum of 4°C (39°F) and only reaching a maximum of 13°C (56°F). The month is considerably wetter, accumulating 194 mm (7.6 in) of precipitation over 19 days, and sees a slight increase in humidity to 87%. For more detailed weather insights, you can check Friday Harbor weather in November.
The weather in July and December in Friday Harbor presents a stark contrast. July experiences mild temperatures, with an average of 14°C (58°F) and maximums reaching 20°C (68°F), alongside relatively low precipitation of 16 mm (0.6 in) over just 3 days, resulting in a comfortable humidity level of 84%. In contrast, December sees significantly colder conditions, with average temperatures dropping to 7°C (45°F) and maximums only reaching 12°C (54°F). The month is much wetter, accumulating 161 mm (6.3 in) of precipitation over 18 days, coupled with a higher humidity level of 87%. For a detailed look at what to expect during this winter month, check out Friday Harbor weather in December.
As July unfolds in Friday Harbor, the weather experiences a delightful shift that tends to break away from the cooler months. With temperatures gently rising, the days average a pleasant warmth, making it an ideal time for outdoor activities. While some moisture remains with a few rainy days, the humidity lingers at a comfortable level, enhancing the lush surroundings. This month stands out, inviting visitors to bask in the beauty of summer while enjoying the crisp, invigorating coastal air. For more insights on what to expect throughout the year, check out Friday Harbor Climate.