Last updated: February 24, 2025
April in Seattle ushers in a dynamic mix of weather, where temperatures range from a brisk 1°C (34°F) at night to a pleasant 24°C (75°F) during the day. With an average temperature of 10°C (50°F), residents experience the essence of spring. However, the month is also characterized by notable precipitation, accumulating 117 mm (4.6 in) across 14 rainy days, contributing to the city's enviable lush greenery. Coupled with a humidity level of 84%, April in Seattle presents a refreshing yet occasionally soggy experience, embodying the unique charm of the Pacific Northwest.
April in Seattle ushers in a refreshing transition, with temperatures finally on the rise after the chill of winter. This month sees a minimum of 1°C (34°F), an average of 10°C (50°F), and a maximum reaching a pleasant 24°C (75°F). Compared to the earlier months, April showcases a marked warming trend, with temperatures soaring from the cooler averages of March. The shift not only brings milder weather but also hints at the vibrant spring that lies ahead, encouraging residents and visitors alike to bask in the blossoming outdoor scenery. As the city shakes off the remnants of winter, April becomes a delightful time to explore Seattle's famed parks and waterfronts, signaling that the warmer days are just around the corner.
April brings a notable shift in precipitation patterns for Seattle, as the city experiences 117 mm (4.6 in) of rain over 14 days. This marks a decrease from the higher totals of the preceding months, particularly March's 126 mm (4.9 in), signaling the gradual transition towards drier spring weather. Comparatively, May continues this trend with even less rainfall at 68 mm (2.7 in), suggesting that residents can expect sunnier days ahead. As the year progresses, the pattern of diminishing precipitation continues through the summer, with July and August experiencing significantly lower totals of 18 mm (0.7 in) and 16 mm (0.6 in), respectively. April, while still retaining its characteristically wet conditions, offers a glimpse of the seasonal shift as the city prepares for the warmth of summer.
As April arrives in Seattle, the city experiences a subtle shift in humidity, dropping to 84% from the slightly higher levels of the previous months. This slight decline marks a transition towards the warmer and drier days of spring and summer, as the humidity gradually decreases throughout May (81%) and June (82%). Notably, April's humidity is still higher than the summer months, especially contrasting sharply with August's 63%. Overall, the trend showcases Seattle's lush, moist climate during the early part of the year, before giving way to the drier heat of summer—a reminder of the city's evergreen charm nestled in the Pacific Northwest.
In April, Seattle experiences a notable rise in the UV Index, reaching 6—an indication of high exposure risk. This marks a sharp increase from the previous months, where the UV Index typically hovered between 2 and 5. As warmer days settle in, the recommended burn time sharply decreases to just 25 minutes, urging residents and visitors to take protective measures. This trend of intensifying UV exposure continues into May and June, highlighting the importance of sun safety as Seattle transitions into its sunnier seasons. For more detailed insights, check out Seattle UV Index.
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April in Seattle marks a delightful turning point as the city basks in 229 hours of sunshine, a noticeable increase from the 199 hours experienced in March. This shift heralds the arrival of spring, inviting residents and visitors alike to revel in the blossoming landscapes and vibrant city life. As the days grow longer and brighter, the trend of increasing sunshine continues into May and June, peaking with an impressive 311 hours in June. This upward trajectory not only lifts spirits but also showcases Seattle's transition from the gray winter months to a season filled with warmth and outdoor adventures. With each passing month, the city's iconic skyline is illuminated, revealing a radiant beauty that draws people outdoors to enjoy the sun-soaked parks and waterfronts.
April marks a notable turning point in Seattle's weather, where the chance of sunny days rises to 50%, doubling the likelihood seen in the earlier months of the year. This increase sets the stage for a more optimistic outlook, offering residents a refreshing break from the typically overcast skies that characterize the winter months. As spring unfolds, April transitions smoothly into the sunnier spells of late spring and summer, where June and July bask in a whopping 58% and 63% chance of clear skies, respectively. This trend indicates that while Seattle is renowned for its rain, the arrival of April brings a promising glimmer of sunshine, inviting both locals and visitors to embrace the vibrant season ahead.
As spring unfolds in Seattle, the daylight duration steadily increases, with April ushering in a delightful 13 hours of daylight. This marks a notable leap from March's 11 hours, signaling a vibrant transition towards summer. Following April, the city enjoys an even more generous 15 hours of sunlight in May and June, creating the perfect backdrop for outdoor adventures and blooming landscapes. This trend highlights the region's gradual shift from the shorter, muted days of winter—where January and February offer just 8 and 10 hours, respectively—toward the long, sun-soaked days of summer. As the year progresses, daylight begins to wane again in the fall, but April remains a key month for those eager to soak up the lengthening hours of light.
In April, Seattle experiences a gentle breeze with an average wind speed of 2.4 m/s (5 mph), marking a slight dip from the previous month. This trend of lower wind speeds continues into June, where the average remains the same. Interestingly, April's winds are part of a larger pattern where the early months of the year generally showcase more brisk conditions. The transition into late spring sees variations, but April stands out as a calm month that hints at the warmer days ahead. As summer approaches, wind speeds consistently decrease, reaching their annual low in July at 1.9 m/s (4 mph), before gradually picking up again in the fall. This gentle April wind invites residents to savor the blossoming beauty of the season while enjoying the tranquility that often accompanies it.
The weather in Seattle changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Seattle and find detailed weather information for every month.
April weather in Seattle offers a notable shift from the chill of January. While January sees temperatures ranging from a brisk -7°C (19°F) to a maximum of 14°C (57°F), April's temperatures rise significantly, with lows of 1°C (34°F) and highs reaching as much as 24°C (75°F). Precipitation in April lessens, totaling 117 mm (4.6 in) over 14 days, compared to January's 175 mm (6.9 in) across 16 days. Both months exhibit high humidity, with April at 84% and January slightly higher at 86%. For a detailed glimpse into January's weather patterns, you can refer to Seattle weather in January.
April generally offers milder temperatures compared to February, with average lows of 1°C (34°F) and highs reaching up to 24°C (75°F), while February experiences chillier conditions, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 14°C (58°F). Although April receives less precipitation at 117 mm (4.6 in) over 14 days, February is wetter, accumulating 177 mm (7.0 in) across 19 days. Humidity levels are similar in both months, with April at 84% and February slightly higher at 86%. For more detailed insights, check out Seattle weather in February.
April typically offers milder temperatures compared to March, with an average rising from 7°C (46°F) in March to 10°C (50°F) in April. While both months experience a range of temperatures, April's daily highs reach up to 24°C (75°F), compared to a maximum of 22°C (72°F) in March. However, April does see slightly less total precipitation at 117 mm (4.6 in) over 14 rainy days, whereas March has 126 mm (4.9 in) across 17 days. Humidity levels remain high in both months, with March at 87% and April at 84%. For more detailed weather insights, check Seattle weather in March.
April and May present a noticeable transition in weather patterns. In April, temperatures experience a wider range, with a minimum of 1°C (34°F) and an average of 10°C (50°F), whereas May sees milder conditions, starting at a minimum of 5°C (42°F) and averaging 14°C (57°F). Precipitation is more abundant in April, with 117 mm (4.6 in) over 14 days compared to May's 68 mm (2.7 in) across 12 days. The humidity levels also slightly decrease, from 84% in April to 81% in May. Overall, May tends to be warmer and drier, nudging towards the pleasant summer months. For more detailed insights, check out Seattle weather in May.
April and June present notably different weather patterns. In April, temperatures generally range from a chilly 1°C (34°F) at night to a mild 24°C (75°F) during the day, with an average of 10°C (50°F). The month experiences significant rainfall, with 117 mm (4.6 in) of precipitation spread over 14 days and a humidity level of 84%. In contrast, June brings warmer temperatures, with nighttime lows around 8°C (46°F) and highs soaring to 38°C (101°F), averaging 17°C (62°F). Precipitation decreases to 63 mm (2.5 in) over just 9 days, accompanied by slightly lower humidity at 82%. For more detailed information, visit Seattle weather in June.
April and July present contrasting weather conditions. In April, temperatures range from a chilly minimum of 1°C (34°F) to a mild maximum of 24°C (75°F), with an average of 10°C (50°F). The month is quite wet, receiving 117 mm (4.6 in) of precipitation over 14 days and featuring high humidity at 84%. In contrast, July offers much warmer temperatures, boasting a minimum of 11°C (52°F), an average of 19°C (67°F), and a maximum that can reach up to 32°C (91°F). This summer month experiences significantly less rainfall, with only 18 mm (0.7 in) falling over just 5 days, and a slightly lower humidity level of 79%. For more details, you can check Seattle weather in July.
April and August exhibit a stark contrast in weather patterns. In April, temperatures range from a chilly minimum of 1°C (34°F) to a comfortable maximum of 24°C (75°F), with an average of 10°C (50°F). This month also sees significant rainfall, totaling 117 mm (4.6 in) over about 14 days, contributing to a high humidity level of 84%. In contrast, August presents a much warmer climate, with temperatures ranging from a minimum of 10°C (51°F) to a peak of 33°C (93°F) and an average of 19°C (67°F). Rainfall is scarce in August, with only 16 mm (0.6 in) falling across just 5 days, resulting in a much lower humidity of 63%. For a more detailed look at August weather, visit Seattle weather in August.
April and September present distinct weather patterns, with April experiencing cooler temperatures and higher humidity. In April, temperatures range from a chilly 1°C (34°F) at night to a pleasant 24°C (75°F) during the day, accompanied by significant precipitation of 117 mm (4.6 in) over about 14 days and humidity levels reaching 84%. In contrast, September offers a milder climate, with temperatures starting at a minimum of 8°C (46°F) and peaking at 30°C (86°F). This month typically sees less rain, totaling 100 mm (3.9 in) over 12 days, and significantly lower humidity at 62%. For more insights on September's weather, visit Seattle weather in September.
April and October present contrasting yet mild weather patterns. In April, temperatures range from a chilly 1°C (34°F) at night to a comfortable 24°C (75°F) during the day, averaging around 10°C (50°F). The month sees significant precipitation, with 117 mm (4.6 in) over approximately 14 days, contributing to a high humidity level of 84%. On the other hand, October experiences slightly cooler nights with a minimum of -1°C (30°F), while daytime highs average around 23°C (74°F); the average temperature remains similar at 11°C (52°F). This month is wetter, receiving 155 mm (6.1 in) of rain across 15 days, and maintaining a slightly lower humidity of 83%. For more details on the weather in this month, check out Seattle weather in October.
April and November present distinct contrasts in weather. In April, temperatures range from a minimum of 1°C (34°F) to a comfortable maximum of 24°C (75°F), with an average temperature of 10°C (50°F). The month experiences about 117 mm (4.6 in) of precipitation over 14 days, accompanied by a humidity level of 84%. In contrast, November is cooler, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 17°C (63°F) and an average of 8°C (47°F). This month sees more rainfall, totaling 181 mm (7.1 in) over 18 days, and higher humidity at 89%. For a more detailed look, you can view Seattle weather in November.
April and December present quite different weather conditions. In April, temperatures range from a chilly 1°C (34°F) at night to a comfortable 24°C (75°F) during the day, with an average of 10°C (50°F). The month sees about 117 mm (4.6 in) of precipitation over 14 days, accompanied by a humidity level of 84%. Conversely, December experiences much colder weather, with minimum temperatures dropping to -7°C (20°F) and a maximum of 14°C (58°F), averaging 6°C (42°F). Precipitation is notably higher at 196 mm (7.7 in) across 19 days, and humidity also increases slightly to 88%. For a closer look at December weather specifics, visit Seattle weather in December.
April in Seattle heralds a transition into spring, offering a refreshing change from the cooler winter months. With an average temperature that begins to rise but can still dip to a chilly low, the city experiences a delightful blend of mild days and brisk evenings. However, this month is also characterized by increased rainfall, as precipitation lingers over several days, contributing to the city's lush greenery. The higher humidity levels can make the air feel heavier, contrasting sharply with the more temperate summer months ahead. Discover more about how these April conditions fit within the broader spectrum of the city's annual weather by visiting Seattle Climate.