Last updated: February 24, 2025
April in Portland, United States, showcases a delightful blend of spring warmth and refreshing rain. With maximum temperatures reaching 29°C (84°F) and an average temperature of 11°C (51°F), the month invites outdoor activities, though the minimum dips to a brisk -1°C (31°F). Rainfall is a notable feature, with 117 mm (4.6 in) of precipitation recorded over approximately 15 days, contributing to the lush greenery that defines the city. Coupled with a high humidity level of 83%, April captures the essence of Portland's vibrant spring, offering a dynamic climate that is both invigorating and nurturing to its natural surroundings.
April marks a vibrant transition in Portland, with temperatures rising noticeably as spring takes hold. The average temperature of 11°C (51°F) heralds a shift from the chill of winter, with minimums hovering around -1°C (31°F) and maximums reaching an exhilarating 29°C (84°F). This month not only showcases a significant increase from March's average of 8°C (46°F) but also sets the stage for the warmer months ahead. As flowers blossom and days lengthen, April encapsulates the essence of renewal, making it a delightful time in the city, where outdoor activities and vibrant landscapes come alive.
April in Portland marks a noticeable transition in precipitation patterns, as the city receives 117 mm (4.6 in) of rain over 15 days. This decrease from March's 135 mm (5.3 in) reflects the gradual shift towards drier conditions as spring takes hold. While the rain continues to nourish the blooming landscape, April's totals signal a brighter outlook ahead. Notably, this month sets the stage for a sharp reduction in precipitation when May arrives, with just 58 mm (2.3 in) predicted over only 10 days. This trend underscores Portland's characteristic springtime fluctuation, where the promise of sunnier days begins to overshadow the persistent showers of winter.
In April, Portland experiences a slight decrease in humidity, averaging around 83%. This marks a transition from the more humid months of winter, where levels hover between 84% and 87%, toward the drier summer months ahead. The city’s humidity begins to stabilize, with May and June maintaining the 83% mark, suggesting a trend of consistent moisture as spring unfolds. As the year progresses into the summer, humidity levels gradually decline, reaching 82% in July and dropping further to 74% by August, highlighting Portland's shift from the lush, damp atmosphere of winter and early spring to a more arid summer climate. Overall, April serves as a pivotal month, bridging the gap between the wetter winter season and the drier summer ahead.
As April rolls into Portland, the UV Index experiences a significant uptick, reaching 6, categorized as high. This marks a noticeable increase from the moderate levels seen in March, where the UV Index was just 5. With the burn time now reduced to 25 minutes, it's essential for residents and visitors alike to ramp up their sun protection strategies. The trend indicates that as spring progresses into May and the temperatures rise, the UV Index will climb to a staggering 9 and even peak at 10 in the early summer months. Staying informed and prepared is key; for more detailed information, check out Portland UV Index.
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April in Portland marks a refreshing transition into spring, as the city basks in 229 hours of glorious sunshine—a noticeable increase from the previous months. This boost in sunlight not only outshines January's mere 88 hours but also illustrates a steady climb from 195 hours in March. The trend continues, hinting at Portland's vibrant days ahead, with May promising even more brightness at 282 hours. This gradual ascent towards the summer months paints a picture of longer, sunnier days that invite outdoor adventures and city exploration, making April a delightful prelude to the sun-soaked summer days that follow.
In April, Portland experiences a noteworthy shift toward sunnier days, with the chance of sunshine reaching 54%. This marks a significant increase from 38% in March, signaling the arrival of spring. As the city bids farewell to the darker winter months, residents can look forward to more bright and cheerful days, setting the stage for outdoor activities and blooming landscapes. The upward trend continues into the warmer months, with June boasting the highest likelihood at 63%. However, compared to the fluctuations seen in the preceding months, April offers a refreshing promise of more consistent sunshine, hinting at the vibrant season ahead.
As spring unfolds in Portland, the days grow noticeably longer, with April bringing an inviting 13 hours of daylight. This increase marks a significant shift from the dimmer winter months, where January offered just 9 hours of light. Following the welcoming light of March's 11 hours, April serves as a clear bridge into the brighter months ahead. The trend continues upward as May approaches, promising even more sunshine, reaching 14 hours as the days stretch toward summer. This gradual extension of daylight not only enhances outdoor activities but also lifts spirits, embodying the vibrant essence of spring in the Pacific Northwest.
In April, Portland's winds remain gentle, averaging 2.2 m/s (5 mph), consistent with the breezy vibe of early spring. Interestingly, this month matches March's subdued wind speed, hinting at a transitional period as the city sheds its winter chill and embraces a softer, more temperate atmosphere. As the year progresses, the wind speeds display a gradual fluctuation, but generally hover around 5 mph throughout the spring and summer months. This tendency suggests that while Portland enjoys brief gusts, the overall air movement remains relaxed, inviting locals and visitors alike to revel in the blossoming beauty of the season without the interruption of fierce winds.
The weather in Portland 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 Portland and find detailed weather information for every month.
April and January exhibit stark contrasts in weather patterns. April typically has a minimum temperature of -1°C (31°F) and averages around 11°C (51°F), peaking at 29°C (84°F), while January sees much colder temperatures with a minimum of -14°C (7°F) and an average of just 5°C (42°F), reaching a maximum of 15°C (59°F). Precipitation differs as well, with April receiving 117 mm (4.6 in) over 15 days compared to January’s 163 mm (6.4 in) over 17 days. Humidity levels remain quite high in both months, with April at 83% and January slightly higher at 85%. For those interested in specifics, you can find more details about January conditions in this link: Portland weather in January.
April generally experiences milder temperatures compared to February, with averages rising from 5°C (41°F) in February to 11°C (51°F) in April. The maximum temperatures also see a notable increase, peaking at 29°C (84°F) in April versus 17°C (63°F) in February. However, February is wetter, receiving more precipitation at 172 mm (6.8 in) over 19 days, compared to April's 117 mm (4.6 in) over 15 days. Despite the additional rain in February, humidity levels remain quite similar, with February at 84% and April at 83%. For more detailed climate information, you can check Portland weather in February.
April weather in Portland showcases a notable increase in average temperatures compared to March, with the minimum rising from -4°C (26°F) to -1°C (31°F) and the maximum reaching up to 29°C (84°F) versus March's high of 24°C (75°F). Despite this warming trend, April experiences slightly less precipitation, totaling 117 mm (4.6 in) over 15 days compared to March's 135 mm (5.3 in) over 17 days. Humidity levels remain relatively similar, with April at 83% and March slightly higher at 85%. This transition from March to April signals a shift towards more pleasant spring weather. For more details on March conditions, check Portland weather in March.
April and May weather show a noticeable transition as spring progresses. In April, temperatures range from a minimum of -1°C (31°F) to a maximum of 29°C (84°F), with an average of 11°C (51°F). The month experiences considerable precipitation at 117 mm (4.6 in) over 15 days, leading to high humidity levels of 83%. In contrast, May brings warmer temperatures, with a minimum of 2°C (36°F) and a maximum reaching 32°C (90°F), averaging 14°C (58°F). Precipitation decreases to 58 mm (2.3 in) spread over 10 days, while humidity remains consistent at 83%. This shift highlights May's drier and warmer conditions compared to the wetter and cooler April. For more details, visit Portland weather in May.
In comparing the weather patterns of April and June, April experiences a broader temperature range with minimums dipping to -1°C (31°F) and maximums reaching up to 29°C (84°F), while June offers a milder minimum of 6°C (43°F) and a significantly higher maximum of 47°C (118°F). Precipitation is more frequent in April, totaling 117 mm (4.6 in) over 15 days, compared to just 46 mm (1.8 in) on 8 days in June. Notably, both months maintain a consistent humidity level of 83%. For more detailed insights into the weather during June, you can check Portland weather in June.
April and July exhibit striking differences in weather patterns. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 29°C (84°F), averaging around 11°C (51°F). The month is quite wet, with 117 mm (4.6 in) of precipitation over 15 days, and humidity levels are relatively high at 83%. In contrast, July showcases much warmer conditions, with temperatures ranging from a minimum of 9°C (49°F) to a sweltering maximum of 37°C (99°F), averaging 21°C (69°F). July is notably drier, receiving only 6 mm (0.2 in) of precipitation over just 1 day and maintaining a similar humidity level of 82%. For more detailed information, visit Portland weather in July.
April and August present contrasting weather patterns, with April experiencing cooler temperatures and significant precipitation, while August is characterized by warmth and dryness. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant average of 11°C (51°F) and can peak at 29°C (84°F), accompanied by 117 mm (4.6 in) of rainfall over 15 days and an average humidity of 83%. In contrast, August offers a much warmer climate, with minimum temperatures around 9°C (48°F), an average of 21°C (70°F), and maximums soaring up to 40°C (104°F). The month is notably drier, receiving only 8 mm (0.3 in) of rain across just 2 days, alongside a lower humidity level of 74%. For more details, you can check Portland weather in August.
April and September present contrasting weather conditions. In April, temperatures can vary significantly, ranging from a chilly minimum of -1°C (31°F) to a warm maximum of 29°C (84°F), with an average temperature of 11°C (51°F). The month also experiences considerable precipitation, totaling 117 mm (4.6 in) over approximately 15 days, alongside high humidity levels of 83%. In contrast, September boasts milder conditions, with a minimum temperature of 6°C (42°F) and a higher average of 18°C (64°F), peaking at a warm 35°C (95°F). The month is notably drier, with only 62 mm (2.4 in) of rainfall spread over just 8 days, and the humidity is lower at 71%. For more detailed insights into September's weather, check out Portland weather in September.
April and October exhibit distinct weather patterns that reflect the transitional seasons. April tends to be warmer, with average temperatures around 11°C (51°F) and a maximum of 29°C (84°F), although it also experiences higher precipitation levels of 117 mm (4.6 in) over approximately 15 days. In contrast, October's temperatures are slightly cooler, averaging 12°C (53°F) and peaking at 26°C (79°F), accompanied by lesser rainfall of 105 mm (4.1 in) across about 12 days. While both months have high humidity levels, April is slightly more humid at 83%, compared to October’s 81%. For a deeper insight into the specifics of October weather, you can visit Portland weather in October.
April and November exhibit distinct temperature profiles and precipitation patterns. In April, temperatures range from a chilly -1°C (31°F) at night to a warm 29°C (84°F) during the day, averaging around 11°C (51°F). This month experiences about 117 mm (4.6 in) of rainfall over 15 days and has a humidity level of 83%. In contrast, November sees colder temperatures, with a minimum of -5°C (24°F) and a maximum of 19°C (67°F), averaging at 8°C (47°F). It is also wetter, with 155 mm (6.1 in) of precipitation occurring over 18 days and slightly higher humidity at 87%. For more details on the specific climate conditions during this time, check out Portland weather in November.
April and December present significantly different weather patterns. In April, temperatures range from a chilly minimum of -1°C (31°F) to a warm maximum of 29°C (84°F), with an average temperature of 11°C (51°F). The month experiences around 117 mm (4.6 in) of precipitation across approximately 15 days and maintains a relatively high humidity level of 83%. In contrast, December is colder, with temperatures ranging from a low of -5°C (24°F) to a high of 16°C (60°F), averaging only 5°C (41°F). This month sees increased precipitation at 183 mm (7.2 in) over 19 days, along with slightly higher humidity at 87%. For more specific insights into the weather during this month, check out Portland weather in December.
April in Portland is a month of vibrant transitions, where the weather starts to shake off the chill of winter. With maximum temperatures reaching a pleasant 29°C (84°F), residents can finally relish the warmth, albeit punctuated by average lows that dip to around 11°C (51°F). The city experiences a noticeable uptick in precipitation, with rain gracing around half the days of the month—encompassing the quintessential Oregon spring. Humidity hangs at a significant 83%, adding a refreshing crispness to the air. These fluctuations bring both the promise of blooming flowers and the unpredictability of April showers, contributing to the city’s lush landscape. For a deeper dive into what to expect throughout the year, check out Portland Climate.