April Weather in Big Bear Lake, United States

Last updated: February 24, 2025

April in Big Bear Lake, United States heralds the onset of spring with pleasant temperatures that can peak at a maximum of 30°C (86°F), while average daily readings hover around a comfortable 14°C (57°F). The month experiences cooler nights, dipping to a minimum of 0°C (32°F). With only 21 mm (0.8 in) of precipitation spread across just 2 days, moisture levels remain low, allowing for outdoor activities to flourish under a moderately humid atmosphere of 57%. This combination of mild weather and limited rainfall makes April an ideal time to explore the natural beauty of Big Bear Lake.

April Temperature in Big Bear Lake

As April unfolds in Big Bear Lake, the temperatures begin to show a delightful upward trend, marking a transition into spring. The month opens with a minimum of 0°C (32°F), but quickly warms to an average of 14°C (57°F). The days can be quite pleasant as temperatures peak at a maximum of 30°C (86°F), offering visitors a welcome escape from the lingering chill of winter. Compared to the cooler months of January through March, April's increasing warmth signals the arrival of vibrant outdoor activities, inviting nature lovers and adventurers to explore this beautiful alpine locale as it awakens from its winter slumber. With blossoms emerging and skies generally clearer, it's a captivating time to experience all that Big Bear Lake has to offer.

April Weather in Big Bear Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Big Bear Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec454649576172777771615345
Data source: Temperature data for Big Bear Lake 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 Big Bear Lake

In April, Big Bear Lake experiences a notable dip in precipitation, receiving just 21 mm (0.8 in) over 2 days. This decline marks a significant reduction from the wetter months of winter and early spring, where January through March consistently delivered higher amounts, peaking at 46 mm (1.8 in) in February. As the region transitions into the drier months ahead, April's milder precipitation foreshadows a shift toward the summer season, during which less frequent rainfall becomes the norm. This changing pattern highlights a seasonal rhythm, as the snowmelt and lush landscapes give way to sunnier skies and a gradual decrease in moisture that characterizes the onset of warmer weather.

April Precipitation Trends in Big Bear Lake

The chart displays monthly precipitation patterns in Big Bear Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4446422114529191291645
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Big Bear Lake

In April, Big Bear Lake experiences a notable dip in humidity, with levels dropping to 57%—the lowest for the spring months. This shift reflects a larger trend: as winter gives way to spring, humidity begins to decrease steadily, making way for drier air in the coming months. Following April, the humidity continues to decline, reaching its annual low of 29% in July. Despite this seasonal drop, April remains a transitional month, bridging the cooler, more humid conditions of winter with the crisp, dry summer forecast. As the landscape begins to bloom, the refreshing change in humidity levels also signals the onset of outdoor adventures in this picturesque mountain town.

April Average Humidity in Big Bear Lake

This chart illustrates the average monthly humidity levels in Big Bear Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec76%80%69%57%45%34%29%28%42%54%68%75%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Big Bear Lake

As April arrives in Big Bear Lake, residents and visitors should brace for a significant jump in the UV Index, peaking at an extreme 11 this month. This represents a sharp increase from the previous months, with March's UV Index reaching 9. As the sun grows stronger, the burn time drops to a mere 10 minutes, urging everyone to take precautions when outdoors. The trend of intensifying UV levels continues into May, maintaining that same extreme index. For those enjoying the beautiful springtime in Big Bear Lake, it’s essential to stay informed and protected. For more details, check out Big Bear Lake UV Index.

Maximum UV Index Levels in Big Bear Lake for April

The chart shows the monthly maximum UV Index (UVI) for Big Bear Lake 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.
JanFebMarAprMayJunJulAugSepOctNovDec469111112121110854
Data source: Big Bear Lake 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 Big Bear Lake

As April unfolds in Big Bear Lake, the days grow longer and more vibrant, with an impressive 328 hours of sunshine basking the charming landscape. This surge in sunlight, following the upwards trend from 295 hours in March, sets the stage for the arrival of spring. The bright sky invites locals and visitors alike to immerse themselves in outdoor activities, from tranquil lake strolls to adventurous hikes. April's sunshine gleefully signals the transition to warmer months, as the region prepares for even sunnier days ahead, with May boasting 370 hours. The gradual increase in daylight hours not only enriches the natural scenery but also lifts spirits, making this mountain retreat a true haven for those seeking warmth and adventure.

Monthly Sunshine Duration in Big Bear Lake: April Highlighted

The April sunshine duration represents the total number of hours Big Bear Lake 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.
JanFebMarAprMayJunJulAugSepOctNovDec190h244h295h328h370h379h383h363h322h299h258h228h
Data source: Big Bear Lake April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Big Bear Lake During April

In Big Bear Lake, April enjoys a sunny disposition, boasting a 72% chance of sunny weather. This continues a trend established in the preceding months of January, February, and March, where sunny probabilities remained consistent, hovering around the low seventies. As spring unfolds, the likelihood of sunshine starts to align more closely with the robust figures seen in May and August, which feature much higher chances of clear skies at 85% and 82%, respectively. In stark contrast, the summer months show a dip in sunshine probability, particularly in July at 55%, highlighting April as a delightful transition into the warmer season. Overall, April stands out as a noteworthy month, balancing decent odds of sunshine with the promise of brighter days ahead.

Percentage of Sunny Days in April in Big Bear Lake

The chart illustrates the percentage of sunny days in Big Bear Lake 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 Big Bear Lake experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec62%72%70%72%85%71%56%82%88%73%77%51%
Data source: Big Bear Lake April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Big Bear Lake in April

As spring unfolds in Big Bear Lake, April marks a delightful transition with an increase in daylight duration, extending to 13 hours. This is a notable rise from the 11 hours experienced in March, reflecting the gradual lengthening of days as the year progresses. Following April, daylight remains consistent with 13 hours in May, before peaking at 14 hours in June and July. This upward trend not only invigorates the landscape but also enhances opportunities for outdoor activities, making it a perfect time for residents and visitors alike to embrace the longer, sun-filled days as winter's chill recedes.

Average Daylight Hours in Big Bear Lake for April

The chart illustrates the variation in daylight duration in Big Bear Lake throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 9m10h 57m11h 59m13h 3m13h 57m14h 23m14h 8m13h 21m12h 20m11h 16m10h 21m9h 53m
Data source: Big Bear Lake daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Big Bear Lake

In April, Big Bear Lake experiences a slight uptick in average wind speed, reaching 2.5 m/s (6 mph)—the highest for the month thus far in the year. This gentle increase from the previous months symbolizes a shift toward the warmer season, with spring bringing more dynamic weather patterns. Throughout the year, wind speeds exhibit a gradual decline during the summer months, particularly in July and September, when they dip to around 2.0 m/s (4 mph). However, April's breezy conditions create a refreshing atmosphere, inviting locals and visitors alike to embrace outdoor adventures as nature awakens. As the year progresses, the winds remain relatively mild, emphasizing the tranquil charm of Big Bear Lake, making it a perfect retreat for those seeking both leisure and exploration.

Average April Wind Speed in Big Bear Lake

The chart displays monthly wind speed patterns in Big Bear Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.22.42.5 m/s2.42.22.02.12.02.12.02.1
Data source: Big Bear Lake April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Big Bear Lake Compares to Other Months

The weather in Big Bear Lake 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 Big Bear Lake and find detailed weather information for every month.

April weather in Big Bear Lake is generally milder compared to January, with temperatures ranging from a chilly 0°C (32°F) at night to a warm 30°C (86°F) during the day, averaging around 14°C (57°F). In contrast, January experiences much colder conditions, with nighttime lows plunging to -7°C (19°F) and daytime highs averaging 7°C (46°F), allowing for a maximum of only 22°C (72°F). Additionally, April has lower humidity levels at 57% and significantly less precipitation, receiving only 21 mm (0.8 in) over 2 days, whereas January sees higher precipitation of 44 mm (1.7 in) over 4 days and a much more humid atmosphere at 76%. To learn more about January weather specifics, check out Big Bear Lake weather in January.

When comparing the weather in April to February, notable differences emerge. April features a broader temperature range, with minimums around 0°C (32°F) and maximums reaching as high as 30°C (86°F), leading to a more mild average temperature of 14°C (57°F). In contrast, February experiences cooler temperatures, with a minimum of -5°C (23°F) and a maximum of 22°C (72°F), yielding a lower average of 8°C (46°F). Precipitation levels also differ significantly; February sees 46 mm (1.8 in) of rainfall over 5 days, while April has only 21 mm (0.8 in) spread over just 2 days, resulting in a drier climate. Humidity is higher in February at 80%, compared to 57% in April. For a detailed look at February's conditions, visit Big Bear Lake weather in February.

In comparing the weather between March and April, there are notable differences in both temperature and precipitation. April sees a more comfortable temperature range, with a minimum of 0°C (32°F), an average of 14°C (57°F), and a maximum of 30°C (86°F), compared to March’s chilly minimum of -4°C (25°F) and average of 9°C (49°F). Furthermore, April experiences significantly less precipitation, totaling 21 mm (0.8 in) over only 2 days, while March records 42 mm (1.6 in) spread over 7 days, indicating a wetter month. Additionally, humidity levels are higher in March at 69%, compared to April's 57%. For more detailed information on March weather specifically, you can visit Big Bear Lake weather in March.

April and May present a transition in weather patterns, with May generally experiencing slightly warmer temperatures. In April, temperatures range from a minimum of 0°C (32°F) to a maximum of 30°C (86°F), with an average of 14°C (57°F). The month sees around 21 mm (0.8 in) of precipitation over 2 days and maintains a humidity level of 57%. In contrast, May has minimum temperatures of 1°C (33°F) and maximums reaching 33°C (92°F), with an average temperature of 16°C (61°F). Precipitation decreases to 14 mm (0.6 in) over 3 days, accompanied by lower humidity at 45%. For a more detailed overview, you can check Big Bear Lake weather in May.

April and June present distinct weather patterns, with April featuring cooler temperatures that range from a minimum of 0°C (32°F) to a maximum of 30°C (86°F). The average temperature in April is 14°C (57°F), accompanied by moderate humidity levels at 57% and around 21 mm (0.8 in) of precipitation over two days. In contrast, June showcases a significant increase in warmth, with temperatures varying from a minimum of 7°C (45°F) to a sweltering maximum of 37°C (99°F) and an average of 22°C (72°F). June also experiences lower humidity at 34% and minimal rainfall, totaling just 5 mm (0.2 in) over one day. For more insights into how June weather compares, check out Big Bear Lake weather in June.

April and July exhibit notable differences in weather patterns. April typically sees a minimum temperature of 0°C (32°F) and an average of 14°C (57°F), with maximums reaching 30°C (86°F). In contrast, July offers much warmer temperatures, with minimums at 11°C (52°F), an average of 25°C (77°F), and highs soaring up to 38°C (101°F). Precipitation is more frequent in July, occurring over 6 days with a total of 29 mm (1.1 in), compared to just 2 days and 21 mm (0.8 in) in April. Additionally, humidity levels are significantly lower in July at 29%, making it feel much drier than the 57% humidity experienced in April. For more detailed insights, check out Big Bear Lake weather in July.

April and August present contrasting weather experiences. April starts with chillier mornings, with minimum temperatures dropping down to 0°C (32°F) and an average of 14°C (57°F), while August offers a much warmer climate, with minimum temperatures at 12°C (55°F) and an average of 25°C (77°F). Additionally, April can peak at 30°C (86°F) but features a higher chance of cooler and rainy days, with about 21 mm (0.8 in) of precipitation spread across just 2 days. In contrast, August, despite having similar precipitation levels at 19 mm (0.8 in), experiences it over a longer period of 5 days, creating a drier atmosphere with significantly lower humidity at 28%. For more details on the warm and sunny weather during this month, check out Big Bear Lake weather in August.

April and September present contrasting weather patterns, showcasing the transition from spring to fall. April experiences cooler temperatures, with a minimum of 0°C (32°F) and an average of 14°C (57°F), while September boasts warmer conditions, with a minimum of 7°C (44°F) and an average of 22°C (71°F). Precipitation is slightly higher in April at 21 mm (0.8 in) compared to September's 12 mm (0.5 in), though both months see rain on only two occasions. Additionally, humidity levels are noticeably different, with April sitting at 57% and September dropping to 41%. For a closer look at what to expect, check out Big Bear Lake weather in September.

April and October exhibit distinct weather patterns, with April offering a wider temperature range that spans from a frosty 0°C (32°F) up to a warm 30°C (86°F). In contrast, October retains a milder profile, with temperatures varying from a minimum of 2°C (36°F) to a maximum of 33°C (92°F). Although April experiences slightly higher average temperatures, it also brings more precipitation, accumulating 21 mm (0.8 in) over about two days, compared to October's lighter 8 mm (0.3 in) of rain over just one day. Additionally, humidity levels are relatively similar, with April at 57% and October slightly lower at 54%. For a detailed look at October's weather, you can visit Big Bear Lake weather in October.

April and November exhibit distinct weather patterns that reflect the transition from spring to autumn. In April, temperatures range from a minimum of 0°C (32°F) to a maximum of 30°C (86°F), with an average of 14°C (57°F) and relatively moderate humidity around 57%. The month sees about 21 mm (0.8 in) of precipitation over just 2 days, signaling the end of winter. In contrast, November presents cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 26°C (79°F), averaging 12°C (54°F). The month experiences slightly less rainfall, totaling 16 mm (0.6 in) over the same 2-day period, but with higher humidity at 68%. For more details on weather specifics during this time, check out Big Bear Lake weather in November.

April and December present quite different weather experiences. In April, temperatures range from a chilly 0°C (32°F) to a warm 30°C (86°F), with an average of 14°C (57°F) and relatively low humidity at 57%. The month sees only about 21 mm (0.8 in) of precipitation over just two days, making it a drier period. In contrast, December brings colder temperatures, with a minimum of -7°C (19°F) and a maximum of 22°C (71°F), averaging around 7°C (46°F). This month also has higher humidity at 75%, along with increased precipitation totaling 45 mm (1.8 in) spread over four days. For those interested in more detailed weather patterns, check out Big Bear Lake weather in December.

Compare Big Bear Lake's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Big Bear Lake

As April unfolds in Big Bear Lake, it brings a refreshing shift in weather compared to the chill of winter months, emerging with a pleasant median temperature that invites outdoor exploration. The mild climate features warmer days that can reach up to 30°C (86°F), while still retaining a crisp morning chill that occasionally dips to 0°C (32°F). With relatively low precipitation days—just two scattered showers—this month showcases a harmonious blend of sunshine and the fresh mountain air, enhanced by a comfortable humidity of 57%. The blend of moderate temperatures and limited rain makes April a perfect time for hiking, fishing, and enjoying the stunning spring scenery. For a deeper understanding of what to expect throughout the year, check out the detailed insights in Big Bear Lake Climate.