May Weather in Kapa'a, United States

Last updated: February 24, 2025

In May, Kapa'a, United States, experiences pleasant tropical weather characterized by maximum temperatures reaching 27°C (81°F) and an average of 23°C (74°F). Nighttime lows dip to a minimum of 19°C (67°F), creating a comfortable climate for both residents and visitors. Throughout the month, precipitation totals 63 mm (2.5 in), with rain occurring on 21 days, contributing to the region's lush greenery. Notably, the humidity remains high at 82%, enhancing the subtly vibrant atmosphere of this charming coastal community.

May Temperature in Kapa'a

In Kapa'a, United States, May marks a delightful transition into warmer days, with temperatures beginning to rise. The month typically sees a minimum temperature of 19°C (67°F) and an average of 23°C (74°F), culminating in a pleasant maximum of 27°C (81°F). This embodies a subtle upward trend in temperature compared to the cooler months of January through April, an increase that sets the stage for the summer heat. As the temperatures gradually climb, May offers a sweet spot for outdoor activities, with comfortable evenings that invite lingering sunsets and the vibrant allure of Hawaiian landscapes. Overall, this month perfectly bridges the cooler spring and the imminent warmth of summer, making Kapa'a an inviting destination for those seeking both relaxation and adventure.

May Weather in Kapa'a: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Kapa'a, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec727171737476777878777573
Data source: Temperature data for Kapa'a 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.

May Precipitation in Kapa'a

In Kapa'a, United States, May marks a continuation of the wet season, with precipitation totaling 63 mm (2.5 in) over 21 days. This slight decrease from April's 80 mm suggests a minor easing of rainfall as the month transitions towards the drier summer months. Notably, while May experiences a reduction in overall precipitation compared to the previous month, the frequency of rainy days remains consistent—an indication of persistent but lighter showers typical for this time of year. As the island shifts into June, a rebound to 92 mm (3.6 in) is anticipated, indicating the weather pattern cycles might usher in a mixture of sunny and damp spells in the approaching month. The trends illustrate a rhythmic dance of wet and dry, common for this lush region, teasing the promise of vibrant landscapes nourished by its frequent rains.

May Precipitation Trends in Kapa'a

The chart displays monthly precipitation patterns in Kapa'a, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec60941568063928080659576127
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Kapa'a

As spring transitions into summer, May in Kapa'a, United States, marks an increase in humidity, reaching 82%. This slight rise continues the trend established in April, reflecting the overall pattern of gradual humidity escalation during this time of year. With humid conditions persisting through the subsequent months, Kapa'a experiences a warm and moisture-laden atmosphere, making the air feel thick and vibrant. As the months go on, the humidity levels remain relatively consistent, peaking during the height of summer in July and August. This consistent humidity helps nurture the lush, tropical landscapes that Kapa'a is renowned for, inviting both residents and visitors to embrace the beauty of the island's natural environment.

May Average Humidity in Kapa'a

This chart illustrates the average monthly humidity levels in Kapa'a, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%78%81%82%82%83%83%82%81%80%79%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Kapa'a

As May rolls into Kapa'a, residents and visitors should brace for one of the highest UV Index readings of the year, hitting an extreme level of 13. This surge in UV radiation, alongside a consistent 10-minute burn time, underscores the importance of sun protection during this month. The trend from earlier months reveals a steady climb from January's high index of 7 to February's very high plateau of 10, peaking dramatically in March and April with an extreme rating of 11. Following May, the UV levels maintain their intensity into the summer months, with June, July, and August also showcasing an index of 12 or 13. As the sun shines brightly in Kapa'a, it’s vital to take precautions and stay informed. For more details on UV exposure, check out Kapa'a UV Index.

Maximum UV Index Levels in Kapa'a for May

The chart shows the monthly maximum UV Index (UVI) for Kapa'a in May, 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.
JanFebMarAprMayJunJulAugSepOctNovDec710111113121313121087
Data source: Kapa'a May 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.

May Sunshine in Kapa'a

May shines brilliantly in Kapa'a, United States, with 335 hours of sunshine, marking a delightful peak as spring transitions into summer. This month boasts a notable increase from 305 hours in April, continuing the upward trend seen throughout the year. From the 216 hours in January to 349 hours in July, Kapa'a enjoys a gradual ascent in daylight, with May acting as a vibrant threshold to the sunniest months. As summer approaches, the trend reflects not just longer days, but an invitation to revel in the beauty of Kapa'a's natural splendor, making it an ideal time for outdoor adventures and sun-soaked memories.

Monthly Sunshine Duration in Kapa'a: May Highlighted

The May sunshine duration represents the total number of hours Kapa'a experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec216h256h283h305h335h334h349h337h315h298h268h256h
Data source: Kapa'a May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kapa'a During May

As May approaches in Kapa'a, the likelihood of sunny weather increases, reaching 56%, which is a noticeable uptick from the previous months. This trend marks a time when residents and visitors alike can expect more vibrant days, especially following the dip seen in March with only 42% sunshine. The increasing percentages suggest a gradual shift towards sunnier conditions, paving the way for the summer months ahead. Notably, June and August will peak with 60% and 61%, respectively, indicating that May serves as a delightful precursor to the more consistently sunny days of summer. Overall, May is shaping up to offer a pleasant mix of sun and warmth, ideal for outdoor activities.

Percentage of Sunny Days in May in Kapa'a

The chart illustrates the percentage of sunny days in Kapa'a throughout the year, with May 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 Kapa'a experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec52%52%43%50%56%60%46%61%54%56%56%33%
Data source: Kapa'a May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kapa'a in May

As spring unfolds into May in Kapa'a, residents and visitors alike revel in the increasing daylight that marks this vibrant month. Starting with just 10 hours of daylight in January, the days gradually lengthen, culminating in 13 hours of sunlight by May—a trend that continues into June and July. This annual surge in daylight not only enhances outdoor activities but also invites a sense of renewal and energy as the community embraces longer evenings. As summer approaches, the gradual tapering to 12 hours in August signifies a shift, with daylight beginning to recede once more, reminding us of nature’s cyclical rhythm. Thus, May stands out as a hallmark of brightness and warmth in Kapa'a, setting the stage for unforgettable moments under the Hawaiian sun.

Average Daylight Hours in Kapa'a for May

The chart illustrates the variation in daylight duration in Kapa'a throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 56m11h 25m12h 2m12h 40m13h 11m13h 26m13h 18m12h 50m12h 13m11h 36m11h 3m10h 48m
Data source: Kapa'a daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Kapa'a

As May arrives in Kapa'a, the wind whispers a gentle 4.8 m/s (11 mph), mirroring the calmness of April. This steady breeze reflects a slight dip from the earlier highs of March and July, where winds surged to 6.1 m/s (14 mph) and 6.0 m/s (14 mph) respectively. Throughout the year, Kapa'a experiences a fascinating dance of wind, with January kicking off at 5.5 m/s (12 mph) and the year culminating in December's brisk 6.1 m/s (14 mph). Interestingly, the transition from the lively winds of spring to the more placid summer months is showcased in May's winds, hinting at the gradual calm that will settle in as the island embraces its warmer season. With the winds of May, Kapa'a finds a sweet spot of tranquility amidst the shifting elements.

Average May Wind Speed in Kapa'a

The chart displays monthly wind speed patterns in Kapa'a, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.55.16.14.84.8 m/s4.66.05.35.55.53.96.1
Data source: Kapa'a May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Kapa'a Compares to Other Months

The weather in Kapa'a changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Kapa'a and find detailed weather information for every month.

May and January in Kapa'a present warm temperatures, but there are notable differences in precipitation and humidity levels. In May, temperatures range from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), with an average of 23°C (74°F). The month sees a higher amount of rainfall, with 63 mm (2.5 in) spread across 21 days and an average humidity of 82%. In contrast, January offers slightly cooler temperatures, with a minimum of 19°C (67°F) and a maximum of 25°C (78°F), averaging 22°C (73°F). This month experiences less rainfall, totaling 60 mm (2.3 in) over just 11 days, coupled with slightly lower humidity at 78%. For a more detailed look at January's weather, you can visit Kapa'a weather in January.

When comparing the weather in May and February, we see some notable differences. May tends to be slightly warmer with an average temperature of 23°C (74°F) compared to February's 22°C (71°F). The maximum temperatures are also higher in May, reaching up to 27°C (81°F) versus 26°C (78°F) in February. However, February experiences more precipitation, with 94 mm (3.7 in) over 17 days, while May sees less rain at 63 mm (2.5 in) across 21 days. Humidity levels are similar, with February at 79% and May slightly higher at 82%. For more specific details about February weather, you can check Kapa'a weather in February.

When comparing the weather in May and March, it's clear that May tends to be slightly warmer, with average temperatures reaching 23°C (74°F) compared to March's average of 22°C (72°F). Although both months experience similar minimum temperatures, May boasts higher maximum temperatures, averaging 27°C (81°F) versus March's 25°C (78°F). Precipitation levels also differ significantly; March receives a substantial 156 mm (6.1 in) of rain, while May sees much less at 63 mm (2.5 in), despite both months having rain on about 21 days. Additionally, the humidity in May is slightly higher at 82% compared to March's 78%. For more detailed information about March weather, you can visit Kapa'a weather in March.

In comparing the weather of April and May, both months exhibit similar temperature ranges, with May showing slightly higher maximum temperatures at 27°C (81°F) compared to April's 26°C (78°F). Notably, both months maintain a minimum temperature of 19°C (67°F) and an average temperature around 23°C (74°F). However, May experiences a decrease in precipitation, with 63 mm (2.5 in) falling over 21 days, while April sees 80 mm (3.2 in) across 20 days. Humidity levels remain comparable, with May at 82% and April at 81%. For a more detailed look at April's climate, you can visit Kapa'a weather in April.

In comparing the weather between May and June, we observe a slight increase in temperature and precipitation levels. May features a minimum temperature of 19°C (67°F), an average of 23°C (74°F), and a maximum of 27°C (81°F), along with 63 mm (2.5 in) of precipitation over 21 days, and humidity levels consistently at 82%. Conversely, June sees a rise in the minimum temperature to 21°C (71°F) and an average of 24°C (76°F), while still maintaining the same maximum of 27°C (81°F). However, precipitation increases to 92 mm (3.6 in) over 20 days, keeping humidity unchanged at 82%. For more details, you can check Kapa'a weather in June.

In May, the weather features a mild range of temperatures with a minimum of 19°C (67°F), an average of 23°C (74°F), and a maximum reaching 27°C (81°F). With a total precipitation of 63 mm (2.5 in) over 21 days, the month experiences significant humidity at 82%. In contrast, July sees slightly warmer temperatures, with a minimum of 22°C (73°F), an average of 25°C (77°F), and a maximum of 28°C (82°F). Precipitation increases to 80 mm (3.2 in) spread over 26 days, and humidity remains comparable at 83%. For more detailed insights into July's weather, you can check out Kapa'a weather in July.

In May, temperatures start to rise with a minimum of 19°C (67°F) and averaging around 23°C (74°F), reaching a maximum of 27°C (81°F). The month typically experiences about 63 mm (2.5 in) of precipitation over 21 days, along with a humidity level of 82%. By August, the weather warms further, with a minimum temperature of 22°C (73°F) and an average of 25°C (78°F), peaking at 28°C (83°F). August sees slightly higher precipitation at 80 mm (3.2 in) across 23 days, while humidity remains consistent at 83%. This transition from May to August indicates a gradual warming trend with increased rainfall. For more details, check out Kapa'a weather in August.

May and September exhibit similar weather patterns, yet there are noticeable differences. In May, temperatures range from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), with an average temperature of 23°C (74°F). The month experiences about 63 mm (2.5 in) of rainfall across 21 days and maintains a high humidity level of 82%. In contrast, September sees slightly warmer temperatures, with a minimum of 23°C (73°F) and a maximum of 28°C (83°F), while the average is around 25°C (78°F). The precipitation levels are comparable, with 65 mm (2.5 in) over the same number of rainy days and consistent humidity at 82%. For more details on September conditions, check out Kapa'a weather in September.

May and October present warm and inviting weather, but with some notable differences. In May, temperatures typically range from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), with an average of 23°C (74°F). The month experiences about 63 mm (2.5 in) of precipitation spread over 21 days, and humidity hovers around 82%. In contrast, October sees slightly higher temperatures, with a minimum of 22°C (71°F), an average of 25°C (77°F), and a maximum of 28°C (82°F). However, it also brings increased rainfall, totaling 95 mm (3.7 in) over 22 days, while humidity dips slightly to 81%. For more specific details about October weather, you can check Kapa'a weather in October.

In May, temperatures range from a minimum of 19°C (67°F) to a maximum of 27°C (81°F), with an average of 23°C (74°F). The month sees about 63 mm (2.5 in) of rain over 21 days, accompanied by relatively high humidity at 82%. In contrast, November experiences slightly warmer weather, with minimum temperatures of 21°C (69°F) and an average of 24°C (76°F), while still reaching a maximum of 27°C (81°F). Precipitation increases to 76 mm (3.0 in), also spread across 21 days, and humidity remains similar at 80%. For more detailed information on November conditions, visit Kapa'a weather in November.

In comparing the weather in May and December, we notice that both months share similar average temperatures, with a minimum of 19°C (67°F), an average of 23°C (74°F), and a maximum of around 27°C (81°F) in May and 26°C (79°F) in December. However, December experiences significantly more rainfall, accumulating 127 mm (5.0 in) over 21 days, as opposed to May's 63 mm (2.5 in) under the same number of rainy days. Despite the increased precipitation, December has slightly lower humidity at 79%, compared to May's 82%. For more details on the weather specifics in December, you can visit Kapa'a weather in December.

Compare Kapa'a's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Kapa'a

May weather in Kapa'a presents a delightful transition into the warmth of summer, as temperatures rise and humidity levels linger at a comfortable high. With an average of 23°C (74°F) and plenty of rainfall across 21 days, this month is notably wetter compared to its drier counterparts. Though the forecast may call for showers, these refreshing bursts of rain often keep the environment lush and vibrant, creating the perfect backdrop for outdoor adventures. If you're looking to explore Kapa'a in May, be prepared for an immersive experience in one of Hawaii's most beautiful seasons. For a deeper dive into Kapa'a’s weather patterns, check out Kapa'a Climate.