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April Weather in Kapaau, United States

Last updated: June 24, 2025

In Kapaau, United States, the average temperature in April hovers around 23°C (73°F), creating a pleasantly warm atmosphere. Expect a minimum of 19°C (66°F) and a maximum of 26°C (79°F), making it ideal for outdoor activities. However, be prepared for some rain, with 44 mm (1.7 in) of precipitation spread across 11 days. The average humidity remains high at 82%, adding a touch of tropical feel to the month.

April Temperature in Kapaau

In April in Kapaau, the average temperature is 23°C (73°F), with maximums reaching 26°C (79°F) and minimums dropping to as low as 19°C (66°F). This pleasant climate makes it an ideal time for outdoor activities and sightseeing adventures.

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

The chart illustrates April temperature patterns in Kapaau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kapaau, April typically has an average temperature of 23°C (73°F), with highs reaching up to 26°C (79°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec727172737476777777767573
Data source: Temperature data for Kapaau 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 Kapaau

In Kapaau in April, the precipitation amount is 44 mm (1.7 in) during 11 days, indicating a relatively wet period for that time of year.

April Precipitation Trends in Kapaau

The chart displays monthly precipitation patterns in Kapaau, 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. In Kapaau, April typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec38765044377194317473279
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Kapaau

In Kapaau in April, humidity is 82%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities feel a bit more strenuous but offering a tropical ambiance perfect for leisurely strolls and relaxed sightseeing.

April Average Humidity in Kapaau

This chart illustrates the average monthly humidity levels in Kapaau, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Kapaau is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%79%82%83%84%85%85%84%83%82%81%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Kapaau

In Kapaau in April, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Kapaau.

Maximum UV Index Levels in Kapaau for April

The chart shows the monthly maximum UV Index (UVI) for Kapaau 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. In April, the maximum UV index in Kapaau typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810111212131313121198
Data source: Kapaau 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.

How April Weather in Kapaau Compares to Other Months

Weather in Kapaau varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Kapaau, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kapaau, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)38 mm (1.5 inches)78%very high
February Weather22°C (71°F)76 mm (3.0 inches)79%very high
March Weather22°C (72°F)50 mm (2.0 inches)79%extreme
April Weather23°C (73°F)44 mm (1.7 inches)82%extreme
May Weather23°C (74°F)37 mm (1.5 inches)83%extreme
June Weather24°C (76°F)7 mm (0.3 inches)84%extreme
July Weather25°C (77°F)19 mm (0.7 inches)85%extreme
August Weather25°C (77°F)43 mm (1.7 inches)85%extreme
September Weather25°C (77°F)17 mm (0.7 inches)84%extreme
October Weather25°C (77°F)47 mm (1.9 inches)83%extreme
November Weather24°C (75°F)32 mm (1.2 inches)82%very high
December Weather23°C (73°F)79 mm (3.1 inches)81%very high

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