Climate and monthly weather forecast
Kahaluu, HI

Kahaluu, located in Hawaii, USA, boasts a predominantly tropical savanna climate year-round, a classification system developed by Russian climatologist Koppen. Incorporated as As in Köppen's climate scheme, it is characterized by both a wet and dry season. Vibrant contrasts blend brilliantly within the region, charting its own weather symphony played throughout the year.

The unique climate manifests itself in a blend of varying characteristics distinctly impacted by its geographical location. Average sea temperatures, for instance, show minimal fluctuation, displaying a range from 75.7°F (24.3°C) to 80.4°F (26.9°C). The warmest sea temperatures are observed between August and October with averages reaching up to 80°F (26.7°C). The daylight duration throughout the year also doesn't stray too far from the spectrum, ranging from 10.8 hours in December to 13.4 hours in June.

While the general pattern seems fairly constant, a degree of variability becomes noticeable during certain periods. These subtle, yet consequential changes give the landscape a distinct look and feel every time the seasons turn. The weather's idiosyncrasies deepen the appeal of Kahaluu, turning every month into a unique weather event.

Balancing daylight and sea temperature, the most opportune time to visit Kahaluu would be from July to October. This period offers the best combination of suitable sea temperatures and ample daylight. During these months, sea temperatures hover between 79.1°F (26.2°C) and 80.4°F (26.9°C), making it ideal for swimming and other water activities. Moreover, daylight duration scales from 12.8 hours to 13.3 hours, allowing tourists ample time to absorb the scenery and partake in outdoor pursuits.

Despite its status as a tropical paradise, Kahaluu sees a less hospitable period between November and February. During these months, daylight is considerably less, with daylight duration falling from 11.6 hours in November to 10.8 hours in December, visibly lower compared to other months. These months also document the lowest sea temperatures, dropping to 76.6°F (24.8°C) and 75.9°F (24.4°C) respectively, making water activities less appealing.

During spring, Kahaluu experiences a slow climb in both daylight duration and sea temperatures. Starting from 12 hours of daylight and a sea temperature of 75.7°F (24.3°C) in March, the area witnesses a gradual increase to 13.2 hours of daylight and a sea temperature of 78°F (25.6°C) in May bringing a slow, graceful transition into summer.

Kahaluu's summer months stand out with a near-constant period of long daylight hours and warm sea temperatures. From June to August, daylight duration remains steady, ranging from 13.4 hours to 13.3 hours. Sea temperatures are also at their most enticing, climbing from 78.6°F (25.9°C) in June to 79.5°F (26.4°C) by August.

As autumn sets in, both daylight duration and sea temperatures start a slow, noticeable descent in Kahaluu. September begins with a daylight duration of 12.3 hours, with sea temperatures at their peak of 80.4°F (26.9°C). As November approaches, daylight drops to 11.1 hours, and sea temperatures lower to an average of 78.4°F (25.8°C).

Winter weather in Kahaluu is characterized by shorter daylight durations and cooler sea temperatures - albeit still relatively warm in comparison to most climates. December sees the lowest daylight duration at 10.8 hours, while sea temperatures range from 77°F (25°C) to 76.6°F (24.8°C). By February, daylight gradually increases to 11 hours, concurrent with a minor sea temperature dip to 75.9°F (24.4°C).

January offers pleasant weather conditions in Kahaluu. Considering the ocean temperatures, January posts a moderate 76.6°F (24.8°C). This month sees a mild transition from the cooler conditions of December, providing an ideal climate for water activities. Weather in January »

The climate conditions slightly shift in February, as compared to January. The sea temperature drops marginally to 75.9°F (24.4°C), making it the second coldest month in Kahaluu. This might impact swimming and surfing activities. Weather in February »

The weather in March presents a mix of warmth and coolness in Kahaluu. The sea temperature dips a little to reach its annual low of 75.7°F (24.3°C), but any chill in the air is offset by increasing daylight hours. March also lays the groundwork for spring, as nature begins to stir back to life. Weather in March »

In Kahaluu, the weather in April begins to warm. There's a notable upswing in the sea temperature, rising to 76.8°F (24.9°C). This mild month exhibits longer days, making outdoor exploration an enjoyable endeavor. Boasting clear skies and a soothing ambiance, April is one of the favorable times in the year to be in Kahaluu. Weather in April »

As the transition period from spring to summer, May is generously warm in Kahaluu. The climatic conditions gently shift from April, as the sea temperature climbs to 78°F (25.6°C). The days become longer, presenting abundant sunlight and palpable warmth. Weather in May »

June is the commencement of the summer phase in Kahaluu. A slight increase in sea temperature to 78.6°F (25.9°C) underscores the gradual shift to warmer climates. Days are filled with abundant sunshine, revealing a landscape glowing with tropical beauty. Weather in June »

July, the halfway mark of the year, is characteristically warm in Kahaluu. It is the month when the sea temperature peaks at 79.1°F (26.2°C), indicating the height of summer. The weather is known for its abundant sunshine, casting a golden hue over the town. Weather in July »

August carries forward the summer season in Kahaluu, with continually warm conditions. The sea temperature escalates slightly to 79.5°F (26.4°C), supporting an array of water activities. Despite the days starting to shorten slightly, there is still bountiful sunlight to savor. Weather in August »

September, though still warm, marks the beginning of a cooling trend in Kahaluu. As the sea temperature attains its highest annual average of 80.4°F (26.9°C) in this month, bathing in the ocean offers a unique delight. Traditionally, September weather offers sunlit days and bright, clear skies. Weather in September »

The weather in October combines the waning warmth of summer and the burgeoning coolness of fall in Kahaluu. The sea temperature makes a subtle decline from its September peak to 80°F (26.7°C). Although transitioning from summer to autumn, October sustains the warm ambiance, with the gradually shortening daylight still allowing ample time for outdoor activities amid the pleasant breezes. In Kahaluu, the average seawater temperature in October is 80.1°F (26.7°C). Note: Temperatures between 77°F (25°C) and 84.2°F (29°C) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort. Weather in October »

November brings a transformative experience in Kahaluu. It presents a definite shift from the warmth of October, with a noticeable drop in sea temperature to 78.4°F (25.8°C). The longer nights begin to set in, hinting at the approaching winter period. Weather in November »

December manifests the arrival of winter in Kahaluu. With a slightly dropping sea temperature settling at 77°F (25°C), this month is characterized by a cooler seaside climate. It closes the year on a tranquil note, while the daylight hours continue to lose ground. Weather in December »