Pepeekeo (HI) Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Pepeekeo, Hawaii, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages. Let's now guide you through the details for a complete overview.

Pepeekeo has a notably wet climate with abundant precipitation, recording 1984 mm (78 in) of rainfall per year. It does, however, have a distinct rainy season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.

Monthly Precipitation Levels

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

The seasons in Pepeekeo, bring significant changes in precipitation. The wettest month, March, receives heavy rainfall, with an average of 264 mm (10 in) of precipitation. This rainfall is distributed across 20 rainy days.

In contrast, the driest month, June, experiences much less rainfall, totaling 102 mm (4 in) over 18 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

March, the wettest month, has a maximum daytime temperature of 23°C (73°F). The city receives 154 hours of sunshine in this period. During the driest month June you can expect a temperature of 24°C (75°F). For more detailed insights into the city's temperatures, visit our Pepeekeo Temperature page.

Annual Rainfall in the United States of America: City Comparison

The map below shows the annual precipitation across the United States of America. You can also select the different months in case you are interested in a specific month.

Pepeekeo vs World: Rainfall Compared

Pepeekeo's average annual precipitation is 1984 mm (78 in). Let's compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.

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

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

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.

Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.

Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.

Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.

Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
• Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

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