April Weather in San Clemente, United States

Last updated: February 24, 2025

In April, San Clemente experiences a delightful blend of warmth and mildness, with a maximum temperature reaching up to 34°C (94°F) and a comfortable average of 16°C (62°F). Nights can cool down to a refreshing 8°C (47°F). This month witnesses a modest precipitation amount of 30 mm (1.2 in) over just three rainy days, contributing to a humidity level of 70% that adds a touch of freshness to the coastal atmosphere. Overall, April offers a pleasant canvas of weather, making it an ideal time for outdoor activities and enjoying the area's natural beauty.

April Temperature in San Clemente

In April, San Clemente begins to embrace the warmth of spring, with temperatures rising notably compared to the earlier months. The minimum temperature nudges up to 8°C (47°F), while the average climbs to a pleasant 16°C (62°F). The days are marked by increasing comfort, peaking at a striking 34°C (94°F), making it one of the warmest months so far. This upward trend hints at the arrival of the summer heat, as the city transitions from the cooler grips of winter and early spring into a more inviting climate. Residents and visitors alike can relish the blossoming nature and invigorating sunshine throughout this vibrant month.

April Weather in San Clemente: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in San Clemente, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec565557616368737473696256
Data source: Temperature data for San Clemente 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 San Clemente

April in San Clemente marks a significant decline in precipitation, receiving only 30 mm (1.2 in) of rain over just 3 days. This is a stark contrast to the earlier months, where rainfall was more abundant, with January peaking at 71 mm (2.8 in). As spring progresses, April's mild showers hint at the upcoming dry summer, with May following closely behind with a mere 18 mm (0.7 in) and only a few additional wet days. The trend of decreasing rainfall is evident as the region transitions from the more active winter months, setting the stage for the drier conditions that characterize the summer.

April Precipitation Trends in San Clemente

The chart displays monthly precipitation patterns in San Clemente, 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.
JanFebMarAprMayJunJulAugSepOctNovDec71666931182333112674
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in San Clemente

In April, San Clemente enjoys a relatively comfortable humidity level of 70%, welcoming the onset of warmer weather. This month marks a notable decrease from the 79% humidity recorded in February and a slight drop from 75% in March. As spring unfolds, humidity remains consistent with May's levels, suggesting a pattern of stability as the region transitions into the summer months. The overall trend shows a gradual decline in humidity from the higher percentages in winter, peaking in February, to more moderate levels as the year progresses, providing residents and visitors alike with a refreshing coastal atmosphere.

April Average Humidity in San Clemente

This chart illustrates the average monthly humidity levels in San Clemente, 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.
JanFebMarAprMayJunJulAugSepOctNovDec74%79%75%71%70%72%73%69%68%67%68%71%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Clemente

In April, San Clemente experiences a significant leap in UV exposure, with the UV Index reaching 10, categorized as very high. This marks a continuation of the upward trend from the previous months, where March boasted an Index of 8. With a burn time of just 15 minutes, it's crucial for residents and visitors alike to take precautions against harmful sun exposure. As spring progresses into May, the UV Index peaks at 11, indicating an escalating intensity that further emphasizes the importance of sun safety. This April serves as a reminder of the heightened UV levels prevalent in the region, urging everyone to protect their skin as the sunny days ahead will only become more intense. For more information, check the detailed San Clemente UV Index.

Maximum UV Index Levels in San Clemente for April

The chart shows the monthly maximum UV Index (UVI) for San Clemente 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.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111010754
Data source: San Clemente 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 San Clemente

April in San Clemente shines brightly with an impressive 319 hours of sunlight, marking a delightful continuation of the upward trend in warm, sunny days that began in January. As the days grow longer and the weather warms, the month enjoys a significant jump from the 290 hours in March, setting the stage for even sunnier May, which welcomes 353 hours. This pattern reflects San Clemente's transition into the vibrant spring and summer months, where sun-drenched days become a cherished hallmark of the coastal lifestyle. As the year progresses, residents and visitors alike eagerly anticipate the peak of sunshine in July and August, with an impressive 379 and 361 hours respectively, transforming San Clemente into a perfect haven for beachgoers and sun-seekers alike.

Monthly Sunshine Duration in San Clemente: April Highlighted

The April sunshine duration represents the total number of hours San Clemente 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.
JanFebMarAprMayJunJulAugSepOctNovDec188h237h290h319h353h370h379h361h317h294h255h223h
Data source: San Clemente April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Clemente During April

As April arrives in San Clemente, the chance of sunny weather dips to 53%, marking a subtle decline from the 61% enjoyed in the preceding months of January, February, and March. This decrease is part of a trend where the likelihood of sunshine gradually wanes as spring transitions toward summer. Interestingly, May follows closely with a 51% chance, but as summer takes hold, the sun's presence becomes increasingly reliable, peaking at 70% in August. Overall, while April offers a decent chance of sun, it serves as a reminder that San Clemente's weather is in a transitional phase, before basking in the warm embrace of summer's brighter days.

Percentage of Sunny Days in April in San Clemente

The chart illustrates the percentage of sunny days in San Clemente 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 San Clemente experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec59%61%62%53%51%61%61%70%71%64%69%46%
Data source: San Clemente April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Clemente in April

As spring unfolds, April brings a noticeable increase in daylight duration for San Clemente, reaching an invigorating 13 hours. This surge not only highlights the blossoming beauty of the season but also marks a significant shift from the 10 hours seen in the colder months of January and February. Following the gradual lengthening of days in March, where daylight extended to 11 hours, April signals a vibrant transition towards summer. This trend continues into May and June, with daylight peaking at 14 hours. As the year progresses, the days gradually shorten again, but the arrival of April serves as a reminder of nature's rebirth and the longer, sun-kissed days ahead.

Average Daylight Hours in San Clemente for April

The chart illustrates the variation in daylight duration in San Clemente throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 11m10h 59m11h 59m13h 2m13h 54m14h 20m14h 5m13h 19m12h 19m11h 17m10h 23m9h 56m
Data source: San Clemente daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in San Clemente

In San Clemente, April marks a delightful transition in the coastal breeze, with an average wind speed of 2.2 m/s (5 mph) that continues from the slightly brisk March. This consistent wind pattern not only enhances the charm of spring but also sets the stage for the pleasant breezes of May that maintain the same speed. Following April, the winds gently taper off during the summer months of July and August, where they drop to 1.7 m/s (4 mph). The year ebbs back to a higher breeze in December, signaling a rhythmic dance of winds that resonates through the seasons. Overall, April's winds are a subtle reminder of the vibrant coastal energy that characterizes this beautiful destination.

Average April Wind Speed in San Clemente

The chart displays monthly wind speed patterns in San Clemente, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.11.82.22.2 m/s2.21.91.71.71.71.91.62.1
Data source: San Clemente April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in San Clemente Compares to Other Months

The weather in San Clemente 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 San Clemente and find detailed weather information for every month.

When comparing the weather in April and January, notable differences emerge. April typically features a milder temperature range, with minimums around 8°C (47°F) and maximums reaching up to 34°C (94°F), while January sees cooler conditions with minimums of 4°C (39°F) and maximums of 30°C (87°F). Precipitation is less frequent in April, averaging just 30 mm (1.2 in) over three days, compared to January's higher total of 71 mm (2.8 in) over five days. Additionally, April has slightly lower humidity levels at 70% compared to January's 74%. For a more detailed look at January weather, check out San Clemente weather in January.

When comparing the weather in April to February, April typically experiences warmer temperatures, with a minimum of 8°C (47°F) and an average of 16°C (62°F), peaking at a high of 34°C (94°F). In contrast, February's temperatures start at a lower minimum of 3°C (38°F), average around 13°C (56°F), and reach a maximum of 29°C (85°F). Additionally, February is notably wetter, with 66 mm (2.6 in) of precipitation over six days, compared to April's 30 mm (1.2 in) of rain over just three days. Humidity is slightly lower in April at 70%, compared to February's 79%. For a more detailed look at February's weather, you can check San Clemente weather in February.

In comparing the weather between March and April, April generally experiences warmer temperatures, with minimums at 8°C (47°F) compared to March's 4°C (40°F), and average highs reaching up to 34°C (94°F) versus March's maximum of 28°C (82°F). While both months see some precipitation, April has significantly less, with only 30 mm (1.2 in) of rain over 3 days, compared to the 68 mm (2.7 in) across 10 days in March. Additionally, April's humidity is slightly lower at 70% compared to March’s 75%, indicating a drier overall atmosphere. For more details about the weather during this transition period, you can check San Clemente weather in March.

April and May feature similar weather patterns, but with slight shifts in temperature and precipitation. April experiences a minimum temperature of 8°C (47°F) and averages 16°C (62°F), reaching a maximum of 34°C (94°F), while May sees a slightly higher minimum of 9°C (49°F) and an average of 17°C (63°F), peaking at a more moderate 31°C (87°F). In terms of precipitation, April has 30 mm (1.2 in) over three days, compared to May's lighter total of 18 mm (0.7 in) over the same number of days. Both months maintain a consistent humidity level of around 70%. For a detailed look at May's weather, visit San Clemente weather in May.

April and June present distinct weather patterns, with April showcasing a wider range of temperatures, from a chilly minimum of 8°C (47°F) to a scorching maximum of 34°C (94°F), resulting in an average temperature of 16°C (62°F). In contrast, June's temperatures are more consistent, with a minimum of 12°C (54°F) and a maximum of 33°C (92°F), leading to an average of 20°C (68°F). While April sees more precipitation, with 30 mm (1.2 in) over three days, June enjoys a significantly drier climate with only 2 mm (0.1 in) of rainfall and no rainy days, contributing to a subtle increase in humidity at 72%. For more insights on the weather specifics in June, visit San Clemente weather in June.

April and July exhibit distinct weather patterns, reflecting the transition from spring to summer. In April, temperatures range from a cool minimum of 8°C (47°F) to a warm maximum of 34°C (94°F), with an average of 16°C (62°F). The month sees a moderate amount of precipitation, totaling 30 mm (1.2 in) over approximately three days, while humidity hovers around 70%. In contrast, July brings significantly warmer temperatures, with a minimum of 15°C (60°F), an average of 23°C (74°F), and a scorching maximum of 41°C (106°F). Rainfall is scarce in July, totaling only 3 mm (0.1 in) and occurring over zero days, with humidity slightly higher at 73%. For more details on July's climate, check out San Clemente weather in July.

April and August present a noticeable contrast in weather patterns. In April, temperatures range from a minimum of 8°C (47°F) to a maximum of 34°C (94°F), with an average temperature of 16°C (62°F). This month sees moderate precipitation of 30 mm (1.2 in) over about three days and relatively high humidity at 70%. In contrast, August boasts warmer minimum and average temperatures, starting at 16°C (62°F) and averaging 24°C (75°F), with a peak reaching 35°C (95°F). Rain is scarce in August, as evidenced by only 3 mm (0.1 in) of precipitation over no rainy days, while humidity remains slightly lower at 69%. For a closer look at August weather specifics, you can visit San Clemente weather in August.

April and September present quite different weather patterns. In April, temperatures range from a cool 8°C (47°F) to a warm 34°C (94°F), with an average of 16°C (62°F). It experiences moderate precipitation at 30 mm (1.2 in) over about 3 days, coupled with a humidity level of 70%. In contrast, September enjoys warmer conditions, with minimum temperatures around 13°C (56°F) and maximums reaching 40°C (105°F), resulting in a higher average of 23°C (73°F). This month sees significantly less rainfall, with only 3 mm (0.1 in) over just 1 day, and a slightly lower humidity of 68%. For more details on San Clemente's weather, check San Clemente weather in September.

April and October weather in San Clemente presents some interesting contrasts. In April, temperatures range from a minimum of 8°C (47°F) to a maximum of 34°C (94°F), with an average of 16°C (62°F). The month sees about 30 mm (1.2 inches) of precipitation over three days and marks a more humid period with humidity levels around 70%. In contrast, October features slightly milder temperatures, with a minimum of 9°C (49°F) and a maximum of 38°C (101°F), averaging 20°C (69°F). This month has significantly less rainfall at 11 mm (0.4 inches) over just two days, while the humidity drops slightly to 67%. For a deeper look into October weather specifics, visit San Clemente weather in October.

April and November share some similarities in weather patterns but also exhibit distinct characteristics. In April, temperatures range from a minimum of 8°C (47°F) to a maximum of 34°C (94°F), averaging around 16°C (62°F) with a humidity level of 70%. The month sees about 30 mm (1.2 in) of precipitation spread over three days. In contrast, November presents a slightly cooler profile, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 33°C (91°F) and an average of 17°C (63°F). This month experiences less rainfall, accumulating 26 mm (1.0 in) over just two days, and maintains a slightly lower humidity level of 68%. For more details on November weather, visit San Clemente weather in November.

In comparing the weather of April and December, we find that April typically enjoys warmer temperatures, with an average of 16°C (62°F) and a maximum reaching up to 34°C (94°F), while December averages a cooler 13°C (56°F) and has a maximum of 27°C (81°F). April also experiences less precipitation, averaging just 30 mm (1.2 in) over three days, compared to December's 73 mm (2.9 in) over five days. Both months have a similar humidity level, around 70% to 71%, but the overall feel is distinctly different, with December being wetter and cooler. For a more detailed look at December's weather, you can check San Clemente weather in December.

Compare San Clemente's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in San Clemente

As April unfolds in San Clemente, the weather transitions into a refreshing and mild springtime warmth, setting itself apart from the chillier months of winter. With an average temperature that invites outdoor activities, visitors can enjoy sunny days alongside occasional light rain, which adds to the region's lush greenery. The moderate humidity levels create a comfortable atmosphere, making this month ideal for coastal explorations and beach outings. For a deeper dive into the unique weather patterns of this picturesque locale, explore more at San Clemente Climate.