April Weather in Koloa, United States

Last updated: February 24, 2025

April in Koloa, United States brings a pleasant warmth with maximum temperatures reaching 27°C (80°F) and an average of 22°C (73°F), making it an inviting time for outdoor activities. However, be prepared for occasional rain, as the month sees an average precipitation of 61 mm (2.4 in) spread over about 17 days, contributing to the region's lush landscape. With humidity levels around 81%, visitors can enjoy the tropical climate while experiencing the refreshing scent of rain-soaked greenery, creating a picturesque setting for both relaxation and adventure.

April Temperature in Koloa

In April, Koloa experiences a delightful transition into warmer weather, with temperatures continuing to rise. The minimum temperature settles at a comfortable 18°C (64°F), while the average climbs to 22°C (73°F), reflecting a familiar tropical charm. The maximum temperature peaks at 27°C (80°F), hinting at the approach of summer. This consistent warmth marks a shift from the cooler months, representing an ideal time for outdoor activities amidst lush, vibrant surroundings. As spring unfolds, the overall trend indicates a gradual increase in temperatures that many locals and visitors alike eagerly anticipate.

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

The chart illustrates April temperature patterns in Koloa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec717070727476777878767472
Data source: Temperature data for Koloa 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 Koloa

In April, Koloa experiences a significant shift in its precipitation patterns, with 61 mm (2.4 in) of rain falling over 17 days. This marked decrease from the previous month, which saw a robust 136 mm (5.4 in) in March over 19 days, indicates a transition into a slightly drier phase as spring unfolds. The weather remains dynamic, with April's rainfall suggesting a moderation after the peak of winter. Interestingly, while April sees less volume than March, it still maintains a consistent frequency of rainy days, preparing the landscape for the lush growth that characterizes the region. As the month progresses into late spring, this balance between rainfall and sunny days likely lays the groundwork for the warm, vibrant conditions that follow in May and June.

April Precipitation Trends in Koloa

The chart displays monthly precipitation patterns in Koloa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3984136625280545449895597
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Koloa

In April, Koloa, United States experiences a noticeable uptick in humidity, reaching an average of 81%. This increase marks a transition from the more moderate levels seen in the earlier months, such as January through March, where humidity hovered around 78%. As spring unfolds, humidity trends continue to rise, peaking during the summer months, with May and June recording 82%. This gradual ascent reflects Koloa's tropical climate, where moisture levels tend to heighten as temperatures climb, creating a lush and vibrant atmosphere. Overall, April serves as a precursor to the more humid conditions that define the summer season, inviting residents and visitors alike to embrace the warmth and beauty of this Hawaiian locale.

April Average Humidity in Koloa

This chart illustrates the average monthly humidity levels in Koloa, 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%79%78%81%82%82%83%83%82%81%80%79%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Koloa

In April, Koloa, United States, experiences an extreme UV Index of 12, a slight rise from March's already high reading of 11. This trend signifies that residents and visitors alike should be especially cautious, with a burn time of just 10 minutes under direct sun exposure. As the month progresses, the UV Index is not expected to drop much, leading into an even more intense May, which peaks at 13. The consistent increase from January's 8 to this month indicates a clear and significant trend towards greater sun intensity as the spring transitions into summer. Those planning outdoor activities should take necessary precautions to protect their skin—after all, a few minutes unprotected can lead to painful consequences. For detailed information, check the full guide at Koloa UV Index.

Maximum UV Index Levels in Koloa for April

The chart shows the monthly maximum UV Index (UVI) for Koloa 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.
JanFebMarAprMayJunJulAugSepOctNovDec810111213131313121087
Data source: Koloa 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 Koloa

April in Koloa, United States, shines with a delightful 303 hours of sunlight, marking a noticeable peak in the city’s radiant springtime. As the days lengthen, you can feel the warmth of emerging summer, building on the steady increase of 280 hours in March. The trend continues upward through May, which boasts an impressive 332 hours, signaling that the season of sun and joy is well on its way. This steady climb from the year’s start not only highlights Koloa’s climate appeal but also sets the stage for outdoor adventures and vibrant local events, making it an ideal time to experience this beautiful Hawaiian community.

Monthly Sunshine Duration in Koloa: April Highlighted

The April sunshine duration represents the total number of hours Koloa 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.
JanFebMarAprMayJunJulAugSepOctNovDec216h256h280h303h332h331h348h335h313h296h266h254h
Data source: Koloa April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Koloa During April

In Koloa, April presents a 49% chance of sunny weather, which reflects a slight uptick compared to the 42% seen in March. This moderate likelihood suggests that as spring settles in, residents and visitors can expect more sunny days, though it still trails behind the more promising months of late spring and summer, such as May and June, boasting 52% and 56% chances of sunshine, respectively. Interestingly, this trend indicates a gradual buildup of sunny conditions leading into the summer months, affirming that Koloa experiences a delightful transition from the cooler winter months to warmer, sunnier days ahead.

Percentage of Sunny Days in April in Koloa

The chart illustrates the percentage of sunny days in Koloa 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 Koloa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%50%43%49%52%56%44%58%52%55%55%33%
Data source: Koloa April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Koloa in April

In April, Koloa enjoys 12 hours of daylight, mirroring the length of March but serving as a springboard into the longer days ahead. As the year progresses toward summer, daylight duration steadily increases, culminating in May with 13 hours of sunshine. This upward trend in daylight not only brightens the landscape but also invites residents and visitors alike to relish the natural beauty of Hawaii. Following April, daylight remains consistent through the summer months, offering ample opportunity for outdoor activities. As the year transitions into fall, daylight begins to taper off, settling back to 11 hours in October and November before returning to the shorter days of winter. This rhythmic pattern of light showcases the ever-changing yet predictable nature of Koloa's climate, making each month uniquely inviting.

Average Daylight Hours in Koloa for April

The chart illustrates the variation in daylight duration in Koloa throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 57m11h 25m12h 2m12h 39m13h 11m13h 26m13h 17m12h 50m12h 13m11h 36m11h 3m10h 48m
Data source: Koloa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Koloa

In April, Koloa experiences a gentle breeze with an average wind speed of 3.3 m/s (7 mph), slightly lower than the previous month. This decline marks a trend of fluctuating wind conditions, as the transition from the brisk winds of March at 4.2 m/s to April's milder air creates a refreshing atmosphere for outdoor activities. As the year progresses, wind speeds tend to oscillate, with notable peaks in July reaching 4.3 m/s (10 mph), while the later months, particularly November, present calmer days with averages dropping to 2.7 m/s (6 mph). April stands as a bridge between the robust winds of early spring and the calmer summer breezes, inviting residents and visitors to enjoy the serene beauty of Koloa.

Average April Wind Speed in Koloa

The chart displays monthly wind speed patterns in Koloa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.83.54.23.3 m/s3.43.24.33.83.93.92.74.1
Data source: Koloa April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Koloa Compares to Other Months

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

April and January share a similar temperature range, with both months having a minimum temperature around 18°C (64°F) and an average temperature near 22°C (73°F). However, April tends to be slightly warmer at its maximum, reaching up to 27°C (80°F), compared to January's peak of 26°C (79°F). In terms of precipitation, April receives more rainfall, totaling 61 mm (2.4 in) over 17 days, while January has less, with only 38 mm (1.5 in) over 10 days. Humidity levels are also a bit higher in April at 81%, compared to 78% in January. For more details on January weather specifically, you can check out Koloa weather in January.

April generally offers slightly warmer temperatures compared to February, with average highs of 27°C (80°F) in April versus 26°C (79°F) in February. The minimum temperatures also reflect this warming trend, with April's minimum at 18°C (64°F) compared to February's 15°C (59°F). However, February sees a bit more precipitation, with 84 mm (3.3 in) over 15 days, compared to April's 61 mm (2.4 in) over 17 days. Humidity levels are quite similar, with April at 81% and February at 79%, making both months feel quite tropical. For more detailed insights into February weather, you can check out Koloa weather in February.

April typically experiences slightly warmer temperatures compared to March, with an average of 22°C (73°F) in April versus 21°C (71°F) in March. While both months have similar minimum temperatures, April sees a marginal increase in maximum temperatures, reaching up to 27°C (80°F) compared to March's 26°C (80°F). However, April is notably drier than March, with only 61 mm (2.4 in) of precipitation over 17 days, whereas March is wetter, recording 136 mm (5.4 in) over 19 days. The humidity remains relatively high in both months, with April at 81% and March at 78%. For more detailed insights, visit Koloa weather in March.

April and May share similar temperature patterns, with both months starting at a minimum of 18°C (64°F). However, May sees a slight increase in the average temperature to 23°C (74°F) and a maximum of 28°C (83°F), compared to April's average of 22°C (73°F) and maximum of 27°C (80°F). Precipitation in May is slightly less than in April, totaling 52 mm (2.1 in) over the same number of rainy days—17 days—suggesting a trend toward drier weather. Humidity remains relatively stable, with April at 81% and May at 82%. For a detailed look at the weather in Koloa during May, you can visit Koloa weather in May.

April and June present a somewhat similar climate, though June tends to be slightly warmer. In April, the minimum temperature averages around 18°C (64°F) and peaks at 27°C (80°F), while June features higher temperatures with a minimum of 21°C (69°F) and a maximum of 28°C (83°F). Both months experience substantial precipitation, with April receiving 61 mm (2.4 in) over 17 days and June seeing a bit more at 80 mm (3.1 in) also over 17 days. Humidity levels remain comparable, with April at 81% and June slightly higher at 82%. For a closer look at June weather, you can check Koloa weather in June.

April and July showcase distinct weather patterns, with both months featuring warm temperatures and high humidity. In April, average temperatures range from a minimum of 18°C (64°F) to a maximum of 27°C (80°F), accompanied by 61 mm (2.4 in) of precipitation over 17 days and a humidity level of 81%. Conversely, July experiences slightly warmer conditions with a minimum of 21°C (70°F) and a maximum of 29°C (84°F). Though it is slightly drier, with 54 mm (2.1 in) of rain spread over 23 days, the humidity remains high at 83%. For those interested in more detailed information about July weather, you can check Koloa weather in July.

April and August exhibit warm conditions, but August tends to be slightly hotter and more humid. In April, temperatures range from a minimum of 18°C (64°F) to a maximum of 27°C (80°F), with an average of 22°C (73°F) and a notable humidity level of 81%. The month experiences about 61 mm (2.4 in) of precipitation over 17 days. In contrast, August sees a minimum temperature of 21°C (70°F) and a maximum of 30°C (86°F), with an average temperature of 25°C (78°F). Although the total precipitation is slightly lower at 54 mm (2.1 in), it occurs over 18 days, contributing to a marginally higher humidity of 83%. For more details on August weather, visit Koloa weather in August.

April and September both feature warm temperatures but show some differences in their weather patterns. In April, the average temperature ranges from a minimum of 18°C (64°F) to a maximum of 27°C (80°F), with higher humidity levels at 81% and more precipitation, measuring 61 mm (2.4 in) over 17 days. In contrast, September offers slightly warmer weather, with average temperatures fluctuating from a minimum of 21°C (71°F) to a maximum of 30°C (86°F). This month enjoys less rainfall, totaling 49 mm (1.9 in) over 16 days, along with a comparable humidity level of 82%. For more details about the weather in September, you can read Koloa weather in September.

In comparing the weather between April and October, we observe that both months feature similar humidity levels of 81%, contributing to a somewhat tropical feel. However, October tends to be slightly warmer, with average temperatures around 25°C (76°F) compared to April's 22°C (73°F). Additionally, October receives more rainfall, with 89 mm (3.5 in) over 20 days, compared to April's 61 mm (2.4 in) across 17 days. For a detailed look at Koloa's October conditions, check out this link: Koloa weather in October.

April and November exhibit relatively similar weather patterns, but there are some notable differences. In April, temperatures range from a minimum of 18°C (64°F) to a maximum of 27°C (80°F), with an average of 22°C (73°F). The month sees about 61 mm (2.4 inches) of precipitation across 17 days, with humidity levels around 81%. Conversely, November tends to be slightly warmer, with temperatures ranging from 19°C (67°F) to 28°C (83°F), and an average of 24°C (75°F). Although November has slightly less precipitation at 55 mm (2.2 inches) over 19 days, the humidity remains comparable at 80%. For more details about the weather in November, you can check Koloa weather in November.

April and December showcase similar temperature ranges, with both months experiencing minimum temperatures around 17-18°C (63-64°F) and maximums near 27°C (81°F). However, April tends to have slightly less precipitation, averaging 61 mm (2.4 in) over 17 days compared to December’s 97 mm (3.8 in) across 16 days. Humidity levels are also comparable, with April holding at 81% and December at 79%. For more detailed insights on December weather, you can visit Koloa weather in December.

Compare Koloa's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Koloa

As April unfolds in Koloa, it brings a delightful transition in weather, characterized by warmer temperatures and high humidity that create a lush, tropical atmosphere. With a noticeable rise in both maximum temperatures and precipitation, this month shifts from the cooler, drier months of winter, inviting soft showers that nurture the vibrant landscape. While you may experience about half the month with some rainfall, the average warmth of the days ensures that the beauty of Koloa thrives. For those seeking a deeper understanding of the splendid climate throughout the year, explore the full details in our dedicated page on Koloa Climate.