Kaanapali (HI) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Kaanapali, Hawaii, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Let's explore the details to provide you with a complete overview.

Kaanapali maintains relatively dry conditions year-round, with an average annual precipitation of 299 mm (12 in). However, it does have a distinct dry season during certain months, creating distinct seasonal patterns visible in our monthly breakdown below.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Significant seasonal changes in precipitation occur throughout the year. During the wettest month, December receives substantial rainfall, averaging 48 mm (1.9 in) of precipitation, recorded across 12 rainy days.

In contrast, the driest month, June brings less rainfall, with 7.1 mm (0.3 in) over 8 rainy days.

December, the wettest month, has a maximum daytime temperature of 26°C (79°F). The city receives 213 hours of sunshine in this period. During the driest month June you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Kaanapali Temperature page.

Kaanapali's average annual precipitation is 299 mm (12 in). Let's compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.

Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

For more detailed information about Kaanapali (HI)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Kaanapali (HI) Climate page.