Naha Climate & Monthly Temperature Overview – Japan

Summer (June-September)

Naha experiences sweltering summers, with average temperatures hovering around 30°C (86°F). Humidity is also high, making the heat feel even more oppressive. Rainfall is common during this season, with occasional typhoons bringing heavy downpours and strong winds. Despite the heat and humidity, the ocean provides some respite, with average water temperatures around 27°C (80°F).

Winter (December-February)

Winters in Naha are mild compared to other parts of Japan, with average temperatures ranging from 16°C to 20°C (61°F to 68°F). While there is less rainfall than in summer, occasional cold fronts can bring brief periods of cooler weather. The skies are often clear and sunny during this season, making it an ideal time to enjoy outdoor activities without the summer crowds.

Average Temperature in Naha, Japan: A Year-Round Summer

Naha, the capital of the Okinawa Prefecture in Japan, enjoys a subtropical climate characterized by warm temperatures throughout the year. The average annual temperature in Naha is a pleasant 22.5°C (72.5°F). In the warmest months, July and August, the average high reaches 30°C (86°F), providing ample opportunities for beachgoers and water sports enthusiasts. Even during the coolest months, January and February, the average low remains above 15°C (59°F), making Naha a year-round summer paradise.

Seasonal Variations in Naha’s Temperature

While Naha experiences relatively stable temperatures throughout the year, there are subtle seasonal variations. The hottest season runs from May to September, with average high temperatures ranging from 27°C (80.6°F) in May to 30°C (86°F) in August. The humidity is also relatively high during these months, creating a warm and sticky environment. The winter months, from November to March, are generally cooler, with average high temperatures ranging from 21°C (69.8°F) in November to 18°C (64.4°F) in January. The humidity is also lower during these months, making it an ideal time for outdoor activities.

Clouds in Naha, Japan

Naha, the capital city of Okinawa Prefecture, Japan, experiences a subtropical climate with distinct seasons. The city’s cloud cover varies throughout the year, influenced by seasonal changes and the proximity to the ocean. During summer, from June to September, Naha experiences frequent cloudy conditions due to the warm and humid air masses associated with the East Asian monsoon. Cumulus and cumulonimbus clouds are common, often leading to afternoon showers and thunderstorms.

In winter, from December to February, Naha’s skies tend to be clearer as the influence of the monsoon weakens and cold, dry air moves in from the north. However, during this period, the city can also experience occasional frontal systems, which can bring periods of cloudiness and precipitation. In autumn, from October to November, and spring, from March to May, Naha’s cloud cover is more variable, with a mix of sunny and cloudy days. During these seasons, the city may experience occasional typhoon-related cloudiness, especially in the late summer and early autumn months.

Distribution and Patterns of Precipitation

Naha, Japan experiences significant precipitation throughout the year, with an average annual rainfall of approximately 1,930 millimeters (76 inches). The precipitation is distributed relatively evenly across the year, with slightly higher amounts during the summer months (June to September) due to the influence of the southwest monsoon. During these months, Naha receives an average of 120-150 millimeters (4.7-5.9 inches) of rainfall per month. The winter months (December to February) are generally drier, with monthly rainfall averages below 100 millimeters (3.9 inches).

Influence of Geography and Climate Patterns

Naha’s precipitation patterns are influenced by its geographical location and the prevailing climate in the region. The city is situated on the coast of Okinawa Island, which is part of the Ryukyu Archipelago. The archipelago is located in the subtropics, characterized by warm and humid conditions throughout the year. Additionally, the presence of the East China Sea and the Pacific Ocean contributes to the high humidity and frequent precipitation in Naha. The southwest monsoon, which dominates the region during the summer months, brings warm and moist air from the ocean, resulting in increased rainfall. During the winter, the prevailing winds shift to the northwest, bringing drier and cooler air from the Asian continent.

Annual Rainfall and Dry Season

Naha, the capital of Okinawa Prefecture, Japan, experiences a subtropical climate with abundant rainfall throughout the year. The annual precipitation averages around 2,300 millimeters (90 inches), making it one of Japan’s wettest cities. The wettest period occurs during the summer months (June to September), influenced by the warm and moist air from the Pacific Ocean. During this time, Naha receives around 250 to 300 millimeters (10 to 12 inches) of rainfall per month.

In contrast, Naha experiences a relatively dry season from December to February. These months typically receive less than 100 millimeters (4 inches) of precipitation, with January being the driest month. This period is characterized by cooler temperatures and a decrease in the frequency of precipitation-bearing weather systems. The dry season is often associated with clear skies and mild humidity, making it an ideal time to visit Naha for outdoor activities.

Historical Occurrence

Snowfall in Naha, the capital city of Okinawa Prefecture, Japan, is a rare phenomenon. Due to its subtropical climate and proximity to the equator, Naha typically experiences mild temperatures throughout the year. However, occasional cold fronts from Siberia can bring cold air to the region, resulting in snowfall. Historical records indicate that snowfall in Naha has occurred only a handful of times in recent decades. One notable snowfall occurred in January 1977 when approximately 5 centimeters of snow accumulated in the city. Another significant snowfall occurred in January 2016, when Naha received around 2 centimeters of snow.

Effects on Daily Life

When snowfall does occur in Naha, it can disrupt daily life and cause transportation delays. The city’s infrastructure is not equipped to handle heavy snowfall, and the roads can become slippery and hazardous. Schools may be closed, and public transportation services may be temporarily suspended. While snowfall in Naha is a rare occurrence, it remains a memorable and extraordinary event for residents and visitors alike. It provides a glimpse into the diverse weather patterns that can affect even the most tropical regions of the world and serves as a reminder of the beauty and unpredictability of nature.

Sunrise and Sunset Times in Naha, Japan

The timing of sunrise and sunset in Naha, Japan varies throughout the year due to the Earth’s tilt and orbit around the Sun. Generally, the days are longest around the summer solstice in late June, and shortest around the winter solstice in late December.

On the summer solstice, sunrise occurs around 5:30 AM and sunset around 7:30 PM, resulting in approximately 14 hours of daylight. Conversely, on the winter solstice, sunrise occurs around 7:00 AM and sunset around 5:30 PM, resulting in only about 10 hours of daylight.

Sun Exposure and UV Index in Naha, Japan

Naha, Japan experiences high levels of solar radiation throughout the year, particularly during the summer months. It is important to take precautions when exposed to the sun, such as wearing sunscreen, sunglasses, and protective clothing.

The UV index, which measures the intensity of the sun’s ultraviolet radiation, is typically high in Naha, especially from April to October. During these months, it is advisable to limit sun exposure during peak hours (10 AM to 4 PM) and protect oneself with appropriate measures.

Full Moon in Naha, Japan

The full moon in Naha, Japan, is a breathtaking sight to behold. The moon rises slowly over the city skyline, casting an ethereal glow upon the buildings and streets below. On a clear night, the moon appears as a perfect circle, hanging suspended in the night sky like a celestial lantern. The full moon is said to bring good luck and prosperity, and many people in Naha celebrate by gathering with friends and family to admire the moon and enjoy its beauty.

The Moon in Naha’s Culture and History

The moon has long held a special significance in Naha’s culture and history. The city is home to several temples and shrines dedicated to the moon, and the moon is often depicted in traditional Japanese art and literature. In Naha, the full moon is celebrated with a variety of festivals and events, including the Nago Moon Festival, which features traditional music, dance, and food. The moon is also said to influence the tides around Naha, and many fishermen rely on the moon’s phases to determine the best times to go fishing.

Seasonal Variation

Naha, the capital of Okinawa, experiences significant seasonal variations in humidity. During the summer months (June to September), the humidity is at its peak, with average relative humidity levels reaching over 80%. This is due to the warm, moist air from the Pacific Ocean, which brings abundant rainfall and creates a muggy atmosphere. The high humidity can make outdoor activities uncomfortable and can also lead to increased perspiration, resulting in dehydration.

Influence on Health and Comfort

High humidity levels can have various effects on human health and comfort. Excessive humidity can make it difficult to regulate body temperature, leading to heat stress and dehydration. It can also aggravate respiratory conditions such as asthma and allergies. Additionally, high humidity can create a breeding ground for mold and mildew, which can pose health risks and cause discomfort. To mitigate these effects, it is recommended to use air conditioning, fans, and dehumidifiers to maintain a comfortable indoor environment during periods of high humidity.

Wind Patterns in Naha, Japan

Naha, the capital city of Okinawa Prefecture, is located in the southernmost part of Japan. It is known for its subtropical climate, which is characterized by warm temperatures and abundant sunshine throughout the year. However, Naha is also susceptible to strong winds, particularly during the typhoon season, which typically lasts from May to October.

During the typhoon season, Naha frequently experiences strong winds that can reach speeds of up to 100 kilometers per hour or more. These winds can cause significant damage to buildings, infrastructure, and trees. In addition, they can also create dangerous conditions for outdoor activities, such as boating and swimming. In order to mitigate the impact of typhoons, Naha has implemented a number of measures, including building seawalls and installing emergency shelters. Residents are also advised to stay indoors during typhoons and to secure loose objects that could be blown away by the wind.

Spring (March to May):

Naha, the bustling capital of Okinawa Prefecture, Japan, is a captivating destination that offers an enchanting blend of history, culture, and natural beauty. Springtime (March to May) is an ideal time to visit Naha, when the weather is warm and inviting, with average temperatures ranging from 15°C to 25°C. The city comes alive with vibrant colors as cherry blossoms paint the streets in a delicate pink hue. Strolling through the historic Shuri Castle Park, visitors can witness the breathtaking beauty of these iconic trees, creating a picturesque tapestry against the backdrop of ancient castle ruins. Additionally, Naha’s many festivals and cultural events, such as the Naha Great Tug-of-War and the Okinawa International Movie Festival, take place during this season, providing visitors with an immersive experience of local traditions.

Summer (June to August):

Summer in Naha is characterized by warm, sunny weather and the occasional typhoon, resulting in average temperatures between 25°C and 30°C. Although this season brings occasional heavy rainfall, it also offers ample opportunities for outdoor activities. Naha’s pristine beaches, such as Naminoue and Toyosaki, beckon visitors to soak up the sun, indulge in water sports, and enjoy the vibrant beach culture. The bustling Kokusai Dori, Naha’s main shopping street, provides a lively atmosphere and a vast array of shops, restaurants, and entertainment options. Evening strolls along Naminoue Beach offer breathtaking views of the sunset, painting the sky in hues of orange and purple, creating a magical ambiance for romantic walks or leisurely picnics.

Solar Potential

Naha, the capital of Okinawa Prefecture, Japan, possesses significant solar energy potential. Its subtropical climate and abundant sunshine make it an ideal location for solar photovoltaic (PV) systems. The city receives an average of 2,074 sunshine hours annually, with an average daily solar radiation of 4.6 kWh/m². This favorable solar profile enables efficient energy generation from solar panels.

Solar Initiatives

Naha has implemented several initiatives to promote solar energy adoption. The city government has established a target of generating 100% of its electricity from renewable sources by 2030. To achieve this goal, it launched the “Solar City Naha” project, which provides subsidies and other incentives for residents and businesses to install solar PV systems. As a result, Naha has witnessed a rapid increase in the installation of solar panels. In 2021, the city had a total installed solar capacity of 73.2 MW, representing a significant contribution to its renewable energy portfolio.

General Topography

Naha, located on the southern tip of Okinawa Island, exhibits a relatively flat topography. The city center lies on a narrow coastal plain that gradually slopes toward the east, where the Pacific Ocean meets the Ryukyu Islands. The surrounding hills rise gently to elevations of around 200 meters, with Mount Yaetake being the highest point at 145 meters. These hills are primarily composed of limestone and sandstone, formed over millions of years by the accumulation and erosion of marine sediments. They provide a scenic backdrop to the city’s urban landscape, offering panoramic views from their summits.

Coastal Features

Naha’s coastline is characterized by a series of sandy beaches, interspersed with rocky headlands. The most notable beach is Naminoue Beach, renowned for its clear turquoise waters and white sandy shore. Other popular beaches include Kerama Beach and Manza Beach, offering excellent snorkeling and diving opportunities. The city’s coastline is also dotted with several small islands, such as Miyagi Island and Aka Island, which are popular destinations for day trips and recreational activities. The presence of numerous coral reefs along the coast contributes to the marine biodiversity and enhances the city’s natural beauty.

Naha Airport (OKA)

Naha Airport is the primary international airport serving Okinawa Prefecture, Japan. The airport is located on the island of Okinawa, approximately 5 kilometers west of the city of Naha. Naha Airport is a major hub for both domestic and international flights, with direct flights to major cities in Japan, as well as to destinations in Asia, Europe, and North America. In 2019, the airport handled over 23 million passengers, making it the fourth busiest airport in Japan. Naha Airport has two runways and a single passenger terminal. The terminal building is modern and well-equipped, with a variety of shops, restaurants, and other amenities.

Transportation to and from Naha Airport

There are a number of transportation options available for getting to and from Naha Airport. The airport is connected to the city of Naha by a monorail line, which takes about 15 minutes to reach the city center. There is also a bus service that runs between the airport and various destinations in Okinawa. In addition, there are taxi and rental car services available at the airport.

Historical Significance

Naha, the vibrant capital city of Okinawa Prefecture, is steeped in a rich historical tapestry. As a crucial port city, Naha served as a gateway for trade and cultural exchange between Okinawa and the rest of Asia for centuries. Its strategic location attracted both merchants and conquerors, leaving behind a legacy of architectural wonders and historical landmarks. Notable among them is Shuri Castle, a UNESCO World Heritage Site and the former palace of the Ryukyu Kingdom, which ruled Okinawa from the 15th to the 19th century. The castle offers breathtaking views of the city and is a testament to Okinawa’s unique cultural heritage.

Modern Metropolis

Today, Naha is a bustling metropolis brimming with modern attractions and amenities. The city boasts a thriving commercial center, featuring a myriad of shopping malls, boutiques, and restaurants. Kokusai Dori, a vibrant pedestrian street, is a popular destination for both locals and tourists, lined with vibrant shops, street food vendors, and lively entertainment venues. Naha also offers an array of cultural experiences, including museums, galleries, and traditional performing arts. The Okinawa Prefectural Museum exhibits the archipelago’s natural history and indigenous culture, while the Naha City Museum of History showcases the city’s own rich past.