April Weather in Berkeley, United States

Last updated: February 24, 2025

April in Berkeley, United States brings a delightful mix of spring warmth and occasional showers. With maximum temperatures reaching up to 31°C (88°F), residents experience a significant contrast to the cooler average of 14°C (58°F) and minimums dipping to 4°C (40°F). This month sees approximately 29 mm (1.2 in) of rain spread over five days, contributing to a humidity level of 78% that enhances the lushness of the season. Overall, April's weather offers a refreshing blend of sunny days and the crispness of springtime, perfect for outdoor explorations and enjoying the vibrant local scenery.

April Temperature in Berkeley

April in Berkeley ushers in a noticeable warming trend, with temperatures beginning to rise significantly as spring unfolds. Average daily temperatures reach around 14°C (58°F), a pleasant increase from the previous months, while nighttime lows hover at a mild 4°C (40°F). The most striking aspect of April is its potential for highs soaring up to 31°C (88°F), marking a clear leap towards summer's embrace. This month not only showcases a transition from the cooler confines of winter but also hints at the impending warmth of May, as the city transitions into a vibrant and inviting season.

April Weather in Berkeley: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Berkeley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec515254576064646566625550
Data source: Temperature data for Berkeley 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.

April Precipitation in Berkeley

April in Berkeley marks a significant transition in the precipitation pattern, with the city receiving only 29 mm (1.2 in) of rain over just 5 days. This represents a sharp decline from the wetter months preceding it, such as January and February, which recorded 94 mm (3.7 in) and 91 mm (3.6 in) respectively. As spring unfolds, the rainfall diminishes, foreshadowing the dry summer months ahead. Following April, precipitation dramatically decreases, with May presenting a mere 18 mm (0.7 in) and June dropping to just 2 mm (0.1 in), highlighting the region's distinct seasonal shift towards drier weather. This trend illustrates Berkeley's transition from the rainy season to the dryness that characterizes the summer months, making April a pivotal turning point in the annual weather cycle.

April Precipitation Trends in Berkeley

The chart displays monthly precipitation patterns in Berkeley, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec94917430182001244281
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Berkeley

As spring unfolds in Berkeley, United States, April experiences a noticeable dip in humidity, settling at 78%—a decline from the higher levels of 82% in both January and March. This reduction is part of a broader pattern as the year progresses, with humidity steadily decreasing toward the summer months; it drops significantly to 71% in May and continues to decline, reaching its lowest in July at 58%. This overall trend highlights a transition from the dampness of winter to the drier, more comfortable air of late spring and summer, making April a delightful time to enjoy the outdoors before the heat of summer sets in.

April Average Humidity in Berkeley

This chart illustrates the average monthly humidity levels in Berkeley, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Berkeley

As April rolls into Berkeley, the UV Index soars to 9, signaling an intensified risk of harm from unprotected sun exposure—considered very high. With a burn time of just 15 minutes, it’s crucial to arm yourself with proper sun protection strategies. Following a trend from the previous months, the UV Index has surged from 3 in January to 8 in March, illustrating a notable shift as spring unfolds. By May, conditions intensify further, peaking at 10—an alert for anyone enjoying outdoor activities. For a detailed guide on UV Index trends and safety tips, check out Berkeley UV Index.

Maximum UV Index Levels in Berkeley for April

The chart shows the monthly maximum UV Index (UVI) for Berkeley in April, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109743
Data source: Berkeley April 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.

April Sunshine in Berkeley

As April unfolds in Berkeley, the city basks in a remarkable 296 hours of sunshine, marking a delightful peak in daylight hours compared to the earlier months of the year. Following a gradual ascent from 151 hours in January to 263 hours in March, this burst of sunshine heralds the arrival of spring, inviting residents and visitors alike to enjoy the outdoors. The increasing trend continues in May, where sunshine climbs even higher to 341 hours, promising an inviting transition into summer. Overall, this gradual rise from the dreary winter months to the vibrant light of April not only enhances the charm of Berkeley but also ushers in a season of renewal and exploration.

Monthly Sunshine Duration in Berkeley: April Highlighted

The April sunshine duration represents the total number of hours Berkeley experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec151h216h263h296h341h355h349h320h299h276h225h194h
Data source: Berkeley April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Berkeley During April

In April, Berkeley experiences a 57% chance of sunny weather, maintaining a trend of relatively high sunlight that begins in the cooler months. Following March, which boasts the highest likelihood of sun at 61%, April continues to show a strong tendency towards clear skies as the region transitions into spring. While the chances slightly dip, this month still offers a favorable outlook compared to the winter months, evidenced by January’s mere 39%. Looking ahead, the likelihood of sunshine ramps up significantly in May, hitting a peak of 70%, reinforcing the notion that spring leads flawlessly into the sunnier days of summer. Overall, April encapsulates a delightful balance of sun and mild weather, making it a charming time for outdoor activities in Berkeley.

Percentage of Sunny Days in April in Berkeley

The chart illustrates the percentage of sunny days in Berkeley throughout the year, with April 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 Berkeley experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%56%62%57%70%62%51%61%60%54%46%33%
Data source: Berkeley April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Berkeley in April

As spring unfolds in Berkeley, the days grow noticeably longer, with April enjoying a delightful 13 hours of daylight. This marks a significant increase from the 11 hours observed in March and sets the stage for even longer days ahead in May, which boasts 14 hours of sunlight. This upward trend in daylight duration from winter to spring not only brightens the landscape but also lifts spirits, inviting more outdoor activities. As the year progresses, the rhythm of daylight continues, peaking in summer months before gradually tapering off as autumn approaches, illustrating the beautiful cyclical nature of seasonal change.

Average Daylight Hours in Berkeley for April

The chart illustrates the variation in daylight duration in Berkeley throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 52m10h 48m11h 59m13h 12m14h 13m14h 44m14h 27m13h 32m12h 22m11h 9m10h 6m9h 34m
Data source: Berkeley daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Berkeley

As April arrives in Berkeley, the wind begins to pick up, reaching an average speed of 3.4 m/s (8 mph). This marks a noticeable increase from the calmer months of winter, with January’s gentle breezes averaging just 2.4 m/s (5 mph). The trend continues upward into May, where the wind speed peaks at 3.9 m/s (9 mph), making for invigorating spring days. Following this peak, the summer months bring a slight decline, maintaining a steady breeze around 3.4 m/s in July. By August, there's a gradual drop to 3.1 m/s (7 mph), signaling the transitional phase toward autumn. Thus, April serves as a pivotal month, highlighting the shift to more dynamic breezes that characterize Berkeley's springtime atmosphere.

Average April Wind Speed in Berkeley

The chart displays monthly wind speed patterns in Berkeley, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.72.93.4 m/s3.93.73.43.12.62.81.92.6
Data source: Berkeley April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Berkeley Compares to Other Months

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

When comparing the weather in April and January, we see distinct differences in temperature and precipitation. April boasts a broader temperature range, with minimums around 4°C (40°F) and maximums reaching up to 31°C (88°F), leading to an average of 14°C (58°F). In contrast, January's temperatures are cooler, featuring minimums at 0°C (32°F) and maximums peaking at 25°C (78°F), with an average of 10°C (51°F). Precipitation also varies significantly; January experiences more rainfall at 94 mm (3.7 in) over 8 days compared to April's 29 mm (1.2 in) over 5 days. Humidity remains relatively high in both months, with January at 82% and April slightly lower at 78%. For a deeper dive into the specifics of January weather, you can check out Berkeley weather in January.

April generally offers warmer temperatures compared to February, with average highs reaching up to 31°C (88°F) versus February's maximum of 26°C (78°F). The minimum temperature in April starts at 4°C (40°F), slightly higher than February's 1°C (34°F). Additionally, April experiences less precipitation, with only 29 mm (1.2 in) across 5 days compared to February's 91 mm (3.6 in) over 8 days. Humidity is also slightly lower in April at 78% compared to February's 84%. For more details on February's weather, you can explore Berkeley weather in February.

April's weather is characterized by warmer temperatures compared to March, with minimums of 4°C (40°F) and maximums reaching up to 31°C (88°F), while March sees slightly cooler temperatures that range from 3°C (37°F) to a maximum of 27°C (81°F). The average temperature in April of 14°C (58°F) also surpasses March's average of 12°C (54°F). However, April experiences less precipitation, totaling 29 mm (1.2 in) over 5 days, compared to March's 73 mm (2.9 in) over 10 days. Additionally, humidity decreases slightly in April, averaging 78% compared to March's 82%. For more details on the weather in March, visit Berkeley weather in March.

April and May exhibit some notable differences in weather patterns. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 31°C (88°F), with an average of 14°C (58°F). The month receives approximately 29 mm (1.2 in) of precipitation over five days, contributing to a humidity level of 78%. In contrast, May sees slightly warmer conditions, with minimum temperatures of 6°C (44°F), maximum temperatures reaching 32°C (90°F), and an average of 15°C (60°F). Notably, May has less precipitation, totaling 18 mm (0.7 in) over just two days, and a lower humidity level of 71%. For more detailed insights into the weather during this period, you can check Berkeley weather in May.

April and June present distinct weather patterns. In April, temperatures range from a chilly minimum of 4°C (40°F) to a warm maximum of 31°C (88°F), with an average temperature of 14°C (58°F). This month also sees a total precipitation of 29 mm (1.2 in) over 5 days, accompanied by relatively high humidity at 78%. In contrast, June enjoys milder temperatures, with a minimum of 9°C (49°F), an average of 18°C (64°F), and a maximum reaching up to 37°C (99°F). Furthermore, June boasts significantly less precipitation at just 2 mm (0.1 in) over 0 rainy days and lower humidity levels at 64%. For more details about the weather in June, check out Berkeley weather in June.

In comparing the weather of April and July, notable differences can be observed. April experiences a broader range of temperatures, with a minimum of 4°C (40°F) and a maximum reaching up to 31°C (88°F), while the average temperature is around 14°C (58°F). This month also sees about 29 mm (1.2 in) of precipitation over five days, accompanied by relatively high humidity at 78%. In contrast, July offers warmer conditions with a minimum temperature of 11°C (53°F) and a maximum of 32°C (90°F), alongside a moderate average of 18°C (64°F). Remarkably, July is drier, reporting no precipitation and maintaining lower humidity levels at 58%. For more details, you can check Berkeley weather in July.

April and August present contrasting weather patterns. In April, temperatures range from a cool 4°C (40°F) to a warm 31°C (88°F), with an average of 14°C (58°F) and significant humidity at 78%. The month sees some precipitation, totaling 29 mm (1.2 in) over approximately five days, contributing to a fresh spring atmosphere.

In stark contrast, August boasts higher minimum temperatures of 11°C (52°F) and peaks at a scorching 37°C (99°F), with an average of 18°C (65°F). This month experiences no rainfall, reflecting a dry climate with humidity dropping to 54%. For more details, you can check out Berkeley weather in August.

April and September offer distinct weather experiences, showcasing the transition of seasons. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 31°C (88°F), with an average of 14°C (58°F). This month sees around 29 mm (1.2 in) of precipitation over five days, along with a higher humidity of 78%. In contrast, September enjoys milder conditions, with temperatures starting at a minimum of 8°C (48°F) and reaching up to 40°C (104°F), averaging 19°C (66°F). Notably, September is much drier, with only 1 mm (0.0 in) of precipitation and no wet days, resulting in a more comfortable humidity level of 55%. For more details on September weather, you can visit Berkeley weather in September.

April and October exhibit notable differences in weather patterns. In April, temperatures range from a cool minimum of 4°C to a warm maximum of 31°C, with an average of 14°C, and the month experiences around 29 mm of precipitation over five days, leading to a relatively humid atmosphere at 78%. In contrast, October showcases a slightly milder climate, with minimum temperatures starting at 5°C and maximums reaching 34°C, averaging 17°C. This month sees less rainfall at 24 mm, occurring over only one day, and a decrease in humidity to 62%. For more detailed insights, you can explore Berkeley weather in October.

April typically experiences slightly warmer temperatures compared to November, with an average of 14°C (58°F) and maximum highs reaching up to 31°C (88°F). In contrast, November has an average temperature of 13°C (56°F) and a maximum of 27°C (81°F). Both months see similar humidity levels at 78%, but November receives more precipitation, averaging 42 mm (1.7 inches) compared to April's 29 mm (1.2 inches), though both months have about five days of rain. For an in-depth look at November weather, check out Berkeley weather in November.

April and December present distinct weather patterns, each with its own unique characteristics. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 31°C (88°F), with an average of 14°C (58°F). The month sees moderate rainfall, totaling 29 mm (1.2 in) over approximately 5 days, while humidity levels hover around 78%.

In contrast, December experiences cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 23°C (74°F), averaging 10°C (51°F). This month is also wetter, receiving 80 mm (3.2 in) of precipitation across about 8 days, and maintains a humidity level of 80%. The increase in rainfall and cooler temperatures makes December feel much different from the warm, often sunny days of April. For a more detailed look at what to expect, check out Berkeley weather in December.

Compare Berkeley's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Berkeley

April in Berkeley ushers in a delightful transition from the cool, crisp remnants of winter to the warmer embrace of spring. With temperatures reaching a peak of 31°C, the month offers a stark contrast to the cooler months preceding it, while still providing a refreshing average that invites outdoor adventures. Despite the moderate rainfall of just a few days, the air remains humid, creating a vibrant atmosphere that's characteristic of this season. As the landscape comes alive with blooming flora, April stands out as a perfect time to explore Berkeley’s natural beauty. For a deeper dive into how April compares with the rest of the year, check out Berkeley Climate.