Lahaina (HI) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Lahaina, Hawaii, United States of America. This average is based on long-term data collected between 1990 and 2020. Now, let's break down all the details for a clearer picture.

With annual rainfall averaging 307 mm (12 in), Lahaina maintains relatively low precipitation levels throughout the seasons. However, it does have a distinct dry season during certain months, creating distinct patterns as demonstrated in our detailed graph below.

Monthly Precipitation Levels

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

The climate in Lahaina shows significant variation throughout the year. Expect 49 mm (1.9 in) of precipitation during the wettest month December, distributed over 12 rainy days.

In contrast, June offers drier and sunnier days, with around 8.1 mm (0.3 in) of rainfall 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 Lahaina Temperature page.

Lahaina's average annual precipitation is 307 mm (12 in). Let's compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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 Lahaina (HI)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Lahaina (HI) Climate page.