Last updated: February 24, 2025
In May, Healdsburg, United States experiences a diverse range of weather, with maximum temperatures reaching up to 35°C (96°F) and an average of 17°C (62°F), presenting warm and inviting conditions for outdoor activities. Evenings may bring a refreshing chill, dipping to a minimum of 3°C (39°F). The month sees 27 mm (1.1 in) of precipitation over just 3 days, resulting in a relatively dry climate, complemented by high humidity levels at 80%. This blend of warmth and occasional showers makes May an excellent time to enjoy the beautiful landscapes and vibrant vineyards of Healdsburg.
May in Healdsburg, United States, marks a delightful transition into warmer weather, with temperatures reflecting the onset of spring. The month begins with minimums around 3°C (39°F), hinting at the lingering chill of winter, but quickly warms up to an inviting average of 17°C (62°F) and peaks at a striking 35°C (96°F), showcasing the potential for summer-like days. This upward trend is evident as May's averages surpass those of the earlier months, revealing a distinct shift from the cooler spring temperatures of April. As the month progresses, residents and visitors alike can enjoy the pleasant warmth, making it an ideal time to explore the vibrant outdoor scenes that Healdsburg has to offer.
In May, Healdsburg experiences a notable decrease in precipitation, with only 27 mm (1.1 in) recorded over just three days. This drop marks a stark contrast to the wetter months preceding it, where January and February consistently see substantial rainfall, averaging 139 mm (5.5 in) and 155 mm (6.1 in), respectively. As spring gives way to summer, the trend continues, with June dropping sharply to a mere 2 mm (0.1 in) and subsequent months showing little to no rainfall at all. This shift highlights the region's transition from the lush, rain-soaked spring into the drier days of summer, setting the stage for vibrant landscapes that thrive on the moisture accumulated during the earlier months.
As spring transitions into summer, May in Healdsburg brings a pleasant consistency in humidity, maintaining a comfortable 80% level. This marks a continuation of the gradual decline from the wet winter months when humidity peaked at 86% in January. Throughout March and April, the humidity eased from 83% to 80%, setting the stage for June's further reduction to 76%. Overall, May stands as the bridge between the higher humidity levels of spring and the drier summer months ahead, ensuring that residents can enjoy the bloom of the season without feeling overly muggy. As the temperature rises, this humidity provides a refreshing balance, making outdoor activities appealing before the summer heat fully sets in.
As May unfolds in Healdsburg, the UV Index reaches a notable 10, marking the start of a particularly intense period for sun exposure. With a very high exposure category, sunbathers and outdoor enthusiasts alike must be vigilant, as the burn time decreases to just 15 minutes. This escalation from April's UV Index of 9 signals not only the arrival of warmer days but also a trend towards heightened sun intensity as summer approaches. Comparatively, the months leading up to May exhibited moderate to high levels of UV exposure, but the quick transition to very high levels underscores the importance of sun safety during this time. As the UV Index continues to trend upward into June, staying informed and prepared is crucial. For further insights into UV levels throughout the year, visit Healdsburg UV Index.
UV Risk Categories
As spring gives way to summer in Healdsburg, May truly shines with an impressive 356 hours of sunlight, marking it as one of the sunniest months of the year. This increase reflects a promising trend, as daylight progressively builds from January's modest 141 hours to April's 298 hours, creating a vibrant atmosphere perfect for outdoor activities and wine tastings. Following May, the sunshine peaks in June and July, showcasing 382 and 390 hours, respectively. The gradual decline in sunlight hours in August through October hints at a transition, yet the 312 hours of September continues to provide ample opportunities to enjoy the stunning landscapes and flourishing vineyards of this beautiful region.
As spring transitions into summer, May in Healdsburg proves to be one of the sunniest months of the year, boasting an impressive 85% chance of sunny weather. This remarkable increase in sunshine is part of a clear upward trend that begins in January, where the likelihood of clear skies starts at a modest 37%. Each month leading up to May shows a steady rise in sunshine, with April reaching 72%—a significant leap from the earlier months. This trend continues into June and beyond, with solid percentages in the low to mid-80s. Thus, if you're planning to enjoy the outdoors in Healdsburg, May offers a delightful chance for beautiful, sunny days to bask in the region's vibrant landscapes.
As spring unfolds in Healdsburg, the days grow longer and more vibrant, with May standing out as a delightful turning point. The transition from April's 13 hours of daylight to 14 hours in May heralds the onset of summer, offering residents and visitors alike the chance to bask in the sun’s warm embrace. This upward trend in daylight hours reflects nature's awakening, encouraging outdoor activities and gatherings. Following May, daylight duration holds steady at 14 hours through June and July, creating a perfect backdrop for leisurely evenings and scenic vineyards. Yet, as summer fades into fall, the gradual decline begins, reminding us of the cyclical beauty of the seasons where longer days of brightness give way to the cozy shadows of autumn.
In Healdsburg, the May winds mark a noticeable transition as the month experiences an average wind speed of 2.9 m/s (6 mph), the highest of the spring season. Following the steady breezes of January through April, which all hover around 2.3 m/s (5 mph), May introduces a gentle increase that hints at the warmth of approaching summer. This uptick in wind speed not only provides a refreshing contrast to the mild temperatures but also sets the stage for the calming, more stable breezes of June at 2.6 m/s (6 mph). As the year progresses, Healdsburg experiences a typical decline in wind speed through the summer months, with July and August each dipping back to 1.9 m/s (4 mph), showcasing the region's unique blend of seasonal changes that are both breezy and picturesque.
The weather in Healdsburg changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Healdsburg and find detailed weather information for every month.
In comparing the weather between May and January, significant contrasts emerge. May showcases a mild climate with average temperatures around 17°C (62°F) and a maximum of 35°C (96°F), alongside relatively low precipitation of 27 mm spread over just three days and humidity at 80%. Conversely, January experiences much colder conditions, with average temperatures of 9°C (49°F) and lows dipping to -2°C (28°F). This month sees considerably higher precipitation at 139 mm over eight days, coupled with a slightly higher humidity level of 86%. For more details, you can explore Healdsburg weather in January.
May and February present quite different weather profiles. In May, temperatures range from a minimum of 3°C (39°F) to a maximum of 35°C (96°F), with an average of 17°C (62°F). The month generally sees less rainfall, accumulating only 27 mm (1.1 in) over about 3 days, and maintains a humidity level around 80%. In contrast, February is much cooler, with temperatures ranging from -4°C (26°F) to a maximum of 26°C (80°F) and an average of 10°C (50°F). This month is significantly wetter, accumulating 155 mm (6.1 in) of precipitation over 8 days, and a slightly higher humidity of 84%. For more details on February weather, you can check Healdsburg weather in February.
In comparing the weather of March and May, it's evident that May generally offers warmer temperatures, with minimums around 3°C (39°F) and average highs reaching 35°C (96°F), compared to March's cooler range of -1°C (30°F) to a maximum of 28°C (83°F). March experiences significantly more precipitation, totaling 97 mm (3.8 in) over 11 days, while May sees just 27 mm (1.1 in) over only 3 days. Humidity levels are relatively similar, with May at 80% and March slightly higher at 83%. For a closer look at March's weather specifics, check out Healdsburg weather in March.
In comparing the weather of May and April, May generally boasts warmer temperatures with an average of 17°C (62°F), compared to April's average of 14°C (57°F). Both months share similar minimum temperatures of around 3°C, but May reaches higher maximum temperatures, peaking at 35°C (96°F) versus April's 31°C (89°F). Precipitation is also less frequent in May, with only 27 mm (1.1 in) over 3 days, while April sees more rain, totaling 45 mm (1.8 in) across 5 days. Interestingly, humidity levels remain constant at 80% for both months, providing a consistent feel in the air. For more detailed information, you can check out Healdsburg weather in April.
May and June showcase a notable shift in weather patterns. In May, temperatures range from a chilly 3°C (39°F) to a warm maximum of 35°C (96°F), with an average of 17°C (62°F). The month sees some precipitation, totaling 27 mm (1.1 in) over three days, accompanied by a humidity level of 80%. In contrast, June offers warmer weather, with minimum temperatures starting at 8°C (47°F) and soaring to an impressive 40°C (105°F), averagely reaching 21°C (69°F). Remarkably, June experiences minimal rainfall, only 2 mm (0.1 in) over the entire month, and maintains a lower humidity level of 76%. For more details, you can check out Healdsburg weather in June.
May and July offer stark contrasts in weather. While May experiences a broad range of temperatures—from a cool 3°C (39°F) at night to a scorching 35°C (96°F) during the day—it also brings about 27 mm (1.1 in) of precipitation over three days, contributing to a high humidity level of 80%. In comparison, July boasts much warmer temperatures, with a minimum of 11°C (53°F) and a maximum of 38°C (101°F), yet it remains dry, recording no precipitation at all and an average humidity of 70%. For a closer look at July's weather specifics, you can check Healdsburg weather in July.
May and August exhibit distinct weather patterns, making each month unique. In May, temperatures swing widely, with lows of 3°C (39°F) and highs reaching up to 35°C (96°F), while the average temperature hovers around 17°C (62°F). The month experiences some precipitation, with about 27 mm (1.1 in) falling over three days, and a humid atmosphere at 80%. In contrast, August presents warmer conditions with a minimum temperature of 10°C (51°F) and an average of 21°C (71°F), peaking at 38°C (101°F). Notably, August is characterized by dry weather, receiving no precipitation over the entire month and lower humidity at 66%. For more details, check out Healdsburg weather in August.
May and September offer distinct weather experiences. In May, temperatures range from a chilly 3°C (39°F) at night to a warm 35°C (96°F) during the day, with an average of 17°C (62°F). The month sees some precipitation, with about 27 mm (1.1 in) of rain spread over three days, contributing to a high humidity level of 80%. In contrast, September brings a slightly warmer climate, with minimum temperatures of 7°C (45°F) and maximum highs reaching up to 41°C (105°F), averaging at 20°C (69°F). This month is much drier, with only 2 mm (0.1 in) of rain and no rainy days, along with a lower humidity of 68%. For more details about September's weather, check out Healdsburg weather in September.
In both May and October, temperatures range from a minimum of around 3°C (39°F) to a maximum of 35°C (96°F), with average temperatures close to 17°C (62°F) in May and 17°C (63°F) in October. However, October experiences slightly more precipitation at 41 mm (1.6 in) over just 2 days, compared to May's 27 mm (1.1 in) over 3 days. Additionally, humidity levels are higher in May at 80%, while October sees a decrease to 72%. For more detailed insights into October weather, you can visit Healdsburg weather in October.
May and November present contrasting weather patterns, highlighting the transition from spring to late autumn. In May, temperatures range from a mild 3°C (39°F) to a warm 35°C (96°F), with an average of 17°C (62°F). The humidity sits at a comfortable 80%, and rainfall is relatively light, totaling 27 mm (1.1 in) over just three days. In contrast, November experiences cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 28°C (83°F), averaging 12°C (54°F). This month also receives more precipitation, with 58 mm (2.3 in) spread across five days and humidity rising slightly to 84%. For those interested in the specifics of November weather, you can find more details here: Healdsburg weather in November.
May and December exhibit stark differences in weather patterns. May boasts a mild average temperature of 17°C (62°F), with highs reaching up to 35°C (96°F) on warmer days, paired with relatively low precipitation of 27 mm (1.1 in) over just three days and humidity levels around 80%. In contrast, December experiences colder temperatures, with an average of 9°C (48°F) and lows dipping to -2°C (29°F). This month sees significantly higher precipitation at 101 mm (4.0 in) over eight days, along with a slight increase in humidity to 84%. For more detailed insights on December weather, visit Healdsburg weather in December.
As May arrives in Healdsburg, the weather transitions into a delightful blend of warmth and moderate humidity, making it a lovely month compared to the cooler, wetter conditions of early spring. With temperatures peaking significantly higher than earlier months, residents and visitors alike can bask in the pleasant climate while enjoying outdoor activities. The modest rainfall, occurring on just a few days, ensures that the lush scenery flourishes without detracting from the overall enjoyment of this vibrant season. For a comprehensive look at how May’s delightful weather stands out in the annual pattern of Healdsburg, check out Healdsburg Climate.