Climate of Waipahu, Hawaii

Waipahu is a vibrant community located on the island of Oahu in the state of Hawaii, USA. Positioned at approximately 21.3876° N latitude and 158.0092° W longitude, Waipahu is part of the greater Honolulu metropolitan area. The city enjoys a tropical climate with consistent temperatures, high humidity, and a distinct wet and dry season. Understanding the climate of Waipahu is crucial for residents and visitors to fully appreciate the island lifestyle and plan for various outdoor activities. See citiesplustowns for a full list of cities in Hawaii.

Geographical Features:

Waipahu is situated on the Ewa Plain, a coastal plain on the leeward side of Oahu. The city is characterized by low-lying terrain and is surrounded by other communities, including Pearl City and Mililani. The island of Oahu itself is marked by diverse landscapes, including lush mountains, volcanic craters, and scenic beaches.


Waipahu experiences a tropical climate, which is characteristic of Hawaii’s location in the central Pacific Ocean. This climate type is marked by consistent temperatures throughout the year, high humidity, and distinct wet and dry seasons.


Summers in Waipahu are warm and relatively dry. From June to September, the city experiences average high temperatures ranging from the mid-80s to low 90s Fahrenheit (29-35°C). The trade winds, which prevail from the northeast, provide a natural cooling effect, making the warm temperatures more comfortable.

While rainfall is generally lower during the summer months, Waipahu can still experience occasional showers and tropical downpours. These rain showers are often brief and followed by sunshine, contributing to the lush and green landscape.


Winters in Waipahu are characterized by mild temperatures and a slightly higher chance of rainfall. From December to February, average high temperatures range from the mid-70s to low 80s Fahrenheit (24-29°C). Nights are cooler but remain relatively mild, with temperatures in the 60s Fahrenheit (15-20°C).

The trade winds continue to influence the weather during the winter months, providing a refreshing breeze. While rainfall is more frequent compared to summer, Waipahu does not experience the distinct winter weather patterns seen in some mainland locations.

Year-round Temperatures:

One of the notable features of Waipahu’s climate is the consistency in temperatures throughout the year. Daytime highs typically range from the mid-70s to low 90s Fahrenheit (24-35°C), while nighttime lows vary from the mid-60s to low 70s Fahrenheit (15-24°C). This stability in temperatures contributes to the island’s reputation for offering a pleasant and comfortable environment.


Waipahu experiences a distinct wet and dry season. The wet season typically occurs from November to March, while the dry season spans from April to October. The city receives an average annual rainfall of about 40 inches (102 cm).

During the wet season, trade winds may bring periodic rainfall, and the island’s topography can lead to variations in rainfall amounts across different areas. Waipahu’s landscape benefits from these seasonal rains, maintaining the lush vegetation that characterizes the Hawaiian islands.

Trade Winds:

The trade winds play a significant role in Waipahu’s climate. These prevailing winds blow from the northeast and provide a natural cooling effect, helping to moderate temperatures and create a comfortable atmosphere. The trade winds contribute to the pleasant conditions that residents and visitors alike appreciate.

Impact on Lifestyle:

The tropical climate of Waipahu has a profound impact on the lifestyle of its residents. The consistent temperatures and abundance of sunshine encourage outdoor activities year-round. The city’s parks, beaches, and recreational areas are popular destinations for residents and visitors looking to enjoy the natural beauty of the island.

Water-based activities, such as swimming, snorkeling, and surfing, are favorite pastimes in Waipahu due to its coastal location. The city’s proximity to attractions like the Pearl Harbor Historic Sites and the Waikele Premium Outlets adds to the variety of activities available to residents and tourists.

The island’s cultural richness is celebrated through events, festivals, and traditional Hawaiian practices. Residents actively engage in local traditions, including hula, luaus, and other cultural festivities that showcase the unique heritage of Hawaii.

The trade winds not only contribute to the climate but also influence the local vegetation. The landscape is dotted with palm trees, tropical flowers, and lush greenery, creating a picturesque backdrop for daily life. The tropical ambiance enhances the overall appeal of Waipahu and contributes to the sense of paradise that characterizes the Hawaiian islands.

Residents of Waipahu are accustomed to the seasonal variations in rainfall and the occasional tropical storms. Hurricane preparedness is a part of life in Hawaii, and residents stay informed about weather conditions during the hurricane season, which runs from June to November.

Waipahu, Hawaii, enjoys a tropical climate with consistent temperatures, high humidity, and distinct wet and dry seasons. The city’s location on the Ewa Plain and its proximity to the Pacific Ocean contribute to its climate patterns. Residents of Waipahu embrace the island lifestyle, enjoying outdoor activities, cultural events, and the natural beauty that the tropical environment provides. The trade winds play a crucial role in creating a comfortable atmosphere, making Waipahu an inviting and picturesque community on the island of Oahu.

Waipahu, Hawaii