April Weather in Santa Barbara, United States

Last updated: February 24, 2025

April in Santa Barbara offers a delightful blend of warm temperatures and refreshing coastal breezes. With maximum highs reaching 30°C (86°F), the average temperature hovers around a pleasant 15°C (60°F), while evenings can cool down to a minimum of 6°C (42°F). The month sees 21 mm (0.8 in) of precipitation over just 2 days, making it a mostly dry period. Additionally, humidity levels are at a comfortable 68%, creating a balanced atmosphere ideal for outdoor activities and exploration. Embrace the warming sun and crisp ocean air that define this charming Californian springtime.

April Temperature in Santa Barbara

In April, Santa Barbara begins to shed its winter chill, welcoming the warmth of transitioning seasons. With minimum temperatures rising to 6°C (42°F) and daytime averages reaching a comfortable 15°C (60°F), the month hints at the vibrant summer ahead. As sun-filled days unfold, the maximum temperature can soar to 30°C (86°F), making it the perfect time for outdoor adventures and beach outings. Compared to the cooler March, April's temperatures reflect a delightful upward trend, inviting locals and visitors alike to revel in the beautiful Southern California climate. Whether enjoying leisurely strolls or soaking up rays, April in Santa Barbara is a refreshing preview of the warmth to come.

April Weather in Santa Barbara: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Santa Barbara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545354596267717269655954
Data source: Temperature data for Santa Barbara generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Santa Barbara

In April, Santa Barbara experiences a significant drop in precipitation, recording only 21 mm (0.8 in) over just 2 days of rain. This stark contrast to the wetter winter months, where January saw 93 mm and February 81 mm, highlights the transition into the drier season. Following April, average rainfall continues to diminish, with May and June receiving a mere 12 mm (0.5 in) and 4 mm (0.1 in) respectively, marking the onset of dry summer months. This trend indicates a clear shift in climate patterns as the year progresses, setting the stage for sunny days ahead. Overall, April serves as a pivotal month, bridging the wetter winter to the arid summer, establishing Santa Barbara's characteristic Mediterranean climate.

April Precipitation Trends in Santa Barbara

The chart displays monthly precipitation patterns in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec93818821124222102362
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Santa Barbara

As April arrives in Santa Barbara, the region experiences a notable shift in humidity, dropping to 68% from March's 75%. This decline marks the beginning of a trend towards drier conditions as the year progresses. Following April, humidity levels continue to decrease significantly, with May plunging to 57% and June further dipping to 52%. The transition to late spring leads into warmer months, where humidity levels reach their annual lows in summer, peaking at just 39% in August. This gradual reduction not only enhances the coastal charm of Santa Barbara but also heralds a shift from the cooler, moister conditions typical of winter and early spring to the more arid atmosphere of summer.

April Average Humidity in Santa Barbara

This chart illustrates the average monthly humidity levels in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec78%82%76%68%58%52%46%39%48%59%72%76%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Santa Barbara

In April, Santa Barbara experiences a significant increase in UV intensity, with the UV Index soaring to 10, placing it firmly in the very high exposure category. This marks a continuation of the upward trend observed since January, where the UV Index has steadily escalated from a moderate 4 to a striking 10. With a burn time of just 15 minutes, residents and visitors are advised to take precautions against harmful UV rays, aligning with the equally intense conditions of the coming months. As we transition into May and June, the UV Index reaches extreme levels, underscoring the importance of sun safety in this sun-kissed locale. For more detailed information, check out the Santa Barbara UV Index.

Maximum UV Index Levels in Santa Barbara for April

The chart shows the monthly maximum UV Index (UVI) for Santa Barbara 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.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Santa Barbara 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 Santa Barbara

April in Santa Barbara ushers in a delightful surge of sunshine, with an impressive 328 hours illuminating the coastline. This marked increase not only continues the steady ascent from the winter months, where January began with just 186 hours, but also sets the stage for the sun-drenched days of May and June. As spring unfolds, cheerful rays outshine March's 287 hours, hinting at the warmer, brighter days ahead. This trend of increasing sunlight creates a vibrant backdrop for outdoor activities, inviting locals and visitors alike to bask in the beauty of Santa Barbara's stunning landscapes. Embrace April’s abundant sunshine, as it heralds the approach of summer’s peak brilliance.

Monthly Sunshine Duration in Santa Barbara: April Highlighted

The April sunshine duration represents the total number of hours Santa Barbara 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.
JanFebMarAprMayJunJulAugSepOctNovDec186h233h287h328h367h370h383h360h317h295h256h227h
Data source: Santa Barbara April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santa Barbara During April

As April unfolds in Santa Barbara, the likelihood of sunny weather continues its upward trajectory, reaching 75%—a slight yet promising increase from March's 73%. This trend showcases the city's transition into spring, where brighter days begin to set the stage for the warmer months ahead. As the year progresses, the chance of sunshine peaks in May at 85%, further highlighting the region's reputation for vibrant and sunny conditions. Thus, April beautifully bridges the lingering coolness of early spring with the burgeoning warmth of summer, making it a delightful time for outdoor activities and enjoying the stunning coastal scenery.

Percentage of Sunny Days in April in Santa Barbara

The chart illustrates the percentage of sunny days in Santa Barbara 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 Santa Barbara experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec59%72%73%75%86%82%81%84%86%73%73%53%
Data source: Santa Barbara April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santa Barbara in April

As April unfolds in Santa Barbara, a noticeable increase in daylight duration heralds the arrival of spring. With 13 hours of daylight, April marks a significant leap from the 11 hours seen in March, reflecting a gradual progression towards longer days. This pattern continues into May, where the sunshine lingers just as joyfully, before peaking in the summer months of June and July at 14 hours. The steady increase in daylight not only brightens the landscape but also invites residents and visitors alike to indulge in outdoor activities and enjoy the blooming beauty of the season. As the year moves forward, daylight hours subtly begin to wane once more, reminding us of the cyclical nature of time in this coastal paradise.

Average Daylight Hours in Santa Barbara for April

The chart illustrates the variation in daylight duration in Santa Barbara throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 8m10h 57m11h 59m13h 4m13h 58m14h 24m14h 9m13h 21m12h 20m11h 16m10h 20m9h 52m
Data source: Santa Barbara daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Santa Barbara

In April, Santa Barbara welcomes a subtle shift in the breeze, with an average wind speed of 3.6 m/s (8 mph), marking a slight increase from the previous months. This uptick in wind activity is a gentle harbinger of the warmer days ahead, as spring breathes life into the coastal landscape. Compared to the quieter winds of June and July, which dip to 2.3 m/s (5 mph), April's breezy charm invites outdoor adventures alongside the blooming scenery. As the year progresses, the winds tend to mellow, but April's invigorating gusts stand out, offering a refreshing contrast that enhances the allure of this picturesque seaside city.

Average April Wind Speed in Santa Barbara

The chart displays monthly wind speed patterns in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.43.23.6 m/s3.22.72.32.32.22.82.42.5
Data source: Santa Barbara April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Santa Barbara Compares to Other Months

The weather in Santa Barbara 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 Santa Barbara and find detailed weather information for every month.

When comparing April and January weather, April generally offers milder temperatures ranging from a minimum of 6°C (42°F) to a maximum of 30°C (86°F), with an average temperature of 15°C (60°F). In contrast, January features slightly cooler conditions, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 27°C (81°F) and an average of 12°C (54°F). Additionally, April experiences considerably less precipitation, averaging only 21 mm (0.8 in) over just 2 days, compared to January’s 93 mm (3.7 in) across 6 days. The humidity levels are also higher in January at 78%, compared to April’s 68%. For more detailed information on January's weather, you can check Santa Barbara weather in January.

Comparing the weather in April and February reveals some notable differences. April experiences a more diverse temperature range, with minimums at 6°C (42°F) and maximums reaching up to 30°C (86°F), along with an average temperature of 15°C (60°F). In contrast, February has cooler temperatures, with minimums around 2°C (36°F) and maximums peaking at 25°C (78°F), giving an average of 12°C (53°F). Additionally, April sees significantly less precipitation, totaling 21 mm (0.8 in) over just 2 days, while February is much wetter with 81 mm (3.2 in) over 6 days. Humidity levels are also higher in February at 82%, compared to 68% in April. For a more detailed look at February weather, you can refer to Santa Barbara weather in February.

In comparing the weather of March and April, April generally offers warmer temperatures, with average highs reaching 30°C (86°F) compared to March's maximum of 25°C (77°F). The minimum temperature in April is also milder at 6°C (42°F), compared to March’s low of 3°C (37°F). Additionally, April experiences significantly less precipitation, with only 21 mm (0.8 in) over 2 days, while March sees much more rainfall at 88 mm (3.5 in) across 9 days. Humidity levels are slightly lower in April at 68%, compared to March's 75%. For more details on March weather, you can check Santa Barbara weather in March.

April and May both present mild temperatures, but May tends to be slightly warmer and drier. In April, temperatures fluctuate from a minimum of 6°C (42°F) to a maximum of 30°C (86°F), with an average of 15°C (60°F) and total precipitation of 21 mm (0.8 in) over 2 days, resulting in a humidity level of 68%. In contrast, May sees a minimum temperature of 7°C (45°F) and a maximum of 29°C (85°F), with an average of 16°C (62°F). The month experiences less rainfall, totaling 12 mm (0.5 in) over the same number of days, and lower humidity at 57%. For more details on the weather conditions, you can visit Santa Barbara weather in May.

In comparing the weather of April and June, we see a noticeable increase in temperatures. April offers a minimum of 6°C (42°F) and a maximum of 30°C (86°F), while June starts with a higher minimum at 10°C (51°F), peaking at 33°C (91°F). The average temperature in April is 15°C (60°F), which rises to 19°C (67°F) in June. Precipitation is significantly lower in June, with only 4 mm (0.1 in) over 1 day compared to April’s 21 mm (0.8 in) over 2 days. Additionally, humidity decreases from 68% in April to 52% in June, contributing to a more comfortable feel during the latter month. For more details, you can check out Santa Barbara weather in June.

April weather in Santa Barbara is characterized by a wider temperature range, with minimums dipping to 6°C (42°F) and maximums reaching up to 30°C (86°F). The average temperature settles around a comfortable 15°C (60°F) with some precipitation, totaling 21 mm (0.8 in) over about 2 days, and humidity levels hovering at 68%. In contrast, July offers warmer and drier conditions, with temperatures ranging from a minimum of 14°C (57°F) to a peak of 36°C (97°F), averaging 22°C (72°F). Notably, July experiences little rainfall, with only 2 mm (0.1 in) and no precipitation days, and a decrease in humidity to 46%, making it a much drier, sunnier month. For more details, check Santa Barbara weather in July.

April weather is characterized by a wider temperature range, with minimums around 6°C (42°F) and maximums reaching up to 30°C (86°F), while average temperatures hover around 15°C (60°F). The month also sees moderate humidity levels at 68% and experiences some precipitation, with about 21 mm (0.8 in) falling over two days. In contrast, August offers warmer and more stable conditions, with minimum temperatures starting at 14°C (58°F), average highs around 22°C (72°F), and peaks hitting 33°C (92°F). Notably, August is much drier, with only 2 mm (0.1 in) of precipitation over the entire month and a significantly lower humidity level of 39%. For a more detailed insight, you can check out Santa Barbara weather in August.

April and September present contrasting weather patterns. In April, temperatures range from a minimum of 6°C (42°F) to a maximum of 30°C (86°F), with an average of 15°C (60°F) and 21 mm (0.8 in) of precipitation occurring over two days. The month experiences relatively high humidity at 68%. In contrast, September enjoys warmer temperatures, with a minimum of 9°C (48°F), an average of 21°C (70°F), and a maximum reaching 36°C (97°F). Notably, September has much lower precipitation at just 2 mm (0.1 in) and no rainy days, coupled with a significantly drier humidity level at 48%. For more detailed insights into September weather, you can check Santa Barbara weather in September.

April and October showcase distinct weather characteristics that highlight the transition of seasons. In April, temperatures range from a chilly minimum of 6°C (42°F) to a warm maximum of 30°C (86°F), with an average of 15°C (60°F) and humidity levels at 68%. This month also experiences some precipitation, with around 21 mm (0.8 in) falling over two days. In contrast, October presents milder conditions with a minimum of 7°C (45°F) and a maximum of 33°C (92°F), averaging at 18°C (65°F). October is notably drier, with only 10 mm (0.4 in) of precipitation and no rainy days, accompanied by a lower humidity of 59%. For more details on the specific weather patterns, you can explore Santa Barbara weather in October.

April and November exhibit similar average temperatures, with both months averaging around 15°C (60°F). However, April generally experiences slightly warmer conditions, with maximum temperatures reaching 30°C (86°F), compared to November's maximum of 28°C (83°F). Precipitation levels are quite comparable, with April receiving 21 mm (0.8 in) over two days and November slightly higher at 23 mm (0.9 in) with rain on just one day. Humidity is a bit higher in November at 72%, versus 68% in April, indicating a slightly more humid feel during the later month. For more details, check out Santa Barbara weather in November.

April and December offer distinct weather experiences. In April, temperatures range from a minimum of 6°C (42°F) to a pleasant average of 15°C (60°F), peaking at a comfortable 30°C (86°F). The month typically sees only 21 mm (0.8 in) of precipitation over about 2 days, resulting in relatively lower humidity at 68%. In contrast, December features cooler conditions, with temperatures ranging from a minimum of 3°C (38°F) to an average of 12°C (54°F), and a maximum of 24°C (75°F). This month is wetter, accumulating 62 mm (2.5 in) of rain over approximately 6 days, accompanied by higher humidity levels at 76%. For a deeper insight into the December weather, check out Santa Barbara weather in December.

Compare Santa Barbara's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Santa Barbara

As April blossoms in Santa Barbara, it brings a delightful transition from the cooler winter months to milder spring days. With temperatures averaging around 15°C (60°F), you can expect pleasant afternoons and cooler evenings. Unlike the heavier rain that might fall in other months, April enjoys relatively low precipitation, averaging only about 21 mm across just a couple of days. The air is tinged with humidity at 68%, adding a refreshing feel to the atmosphere. This gentle blend makes April an ideal time to explore the charm of Santa Barbara, where you can enjoy the vibrant blooms and outdoor activities without the heavy crowds, making it a lovely month to visit. For a more comprehensive understanding of what to expect throughout the year, check out Santa Barbara Climate.