Climate and monthly weather forecastAiea, HI

The climate of Aiea

Aiea, situated in Hawaii, USA, is blessed with an As (Tropical wet and dry or savanna) type of climate, according to the Köppen climate classification. The As climate, typically characterized by a 'summer' dry season, makes the weather in Aiea not only alluring but largely predictable throughout the year.

Throughout the year, Aiea experiences minimal fluctuations in certain weather parameters. The high temperatures range from 75°F (23.9°C) in February to a peak of 81.5°F (27.5°C) in September. The low temperatures also roll between 69.1°F (20.6°C) in February and 75.7°F (24.3°C) in August. The fairly uniform temperatures make Aiea a warm weather paradise all year round.

In terms of precipitation, Aiea receives its highest rainfall from 1.81" (46mm) in March and October, and the least in July, with 0.67" (17mm). The number of rainfall days also varies, with the highest numbers from 16.1 days in November to 18 days in March and October. Conversely, both relative humidity and sea temperatures remain fairly stable throughout the year, hovering around 75% and between 75.7°F (24.3°C) to 80.4°F (26.9°C) respectively.

Interestingly, daylight hours progressively increase from 11 hours in January to a maximum of 13.4 hours in June, before receding towards the end of the year. Correspondingly, Aiea enjoys sunshine hours from 6.5 hours in November and December to a high of 10.8 hours in June. Noticeably, the UV index and visibility remain invariant at 6 miles and 6 throughout the year respectively.

The best time to visit Aiea

Optimal visiting times to Aiea largely depend on visitor preferences, particularly towards temperature and rainfall. However, by combining several factors such as lower rainfall, higher sunlight durations, and warm temperatures, the months from May to July stand out. During these months, rainfall is at the year’s lowest, along with increased sunlight hours of up to 10.3 hours per day and warm sea temperatures, all conducive for outdoor activities and beach outings.

The worst time to visit Aiea

Although Aiea has a pleasant climate year-round, the months of March and October may not be the best time to visit. Heavy rainfall during these months, clocking at 1.81" (46mm) and with up to 18 days of rain, may cause disruptions to outdoor plans such as hiking, beach visits and sightseeing.

Spring weather in Aiea

Spring spans between March and May in Aiea. Start of spring witnesses the heaviest rainfall of 1.81" (46mm) in March. However, as April rolls in, rainfall decreases considerably. Temperatures during spring moderately fluctuate, with highs varying from 75°F (23.9°C) (March) to 78.4°F (25.8°C) (May), and lows moving from 69.4°F (20.8°C) to 72.7°F (22.6°C). Sunshine hours experience a hearty boost, going up from 8 hours (March) to 10.3 hours (May), heralding the onset of summer.

Summer weather in Aiea

Summer in Aiea, from June through August, is characterized by the year’s highest temperatures and longest days. High temperatures range from 79.5°F (26.4°C) (June) to 81.3°F (27.4°C) (August), while lows hover around 75°F (23.9°C). Despite being summer, Aiea receives moderate rainfall, with the lowest precipitation in July. Hours of sunlight breach the 10-hour mark, providing ample daylight for explorations.

Autumn weather in Aiea

September to November constitutes the autumn season in Aiea. Autumn shares a lot in common with summer, with high temperatures from 81°F (27.2°C) (September) to 78.8°F (26°C) (November). Precipitation levels pick up pace reaching 1.81" (46mm) again in October. Sunshine hours gradually decrease as winter approaches, moving from 8.9 hours in September to 6.5 hours in November.

Winter weather in Aiea

Winter months of December to February do not bring extreme cold to Aiea. Instead, temperatures remain pleasant with highs between 75.7°F (24.3°C) and 76.5°F (24.7°C), and lows between 70°F (21.1°C) and 71.4°F (21.9°C). Rainfall also slightly increases during these months, recording 1.54" (39mm) in December. Sunshine hours are at their year’s lowest, with about 6.5 hours in December and February. Despite the relatively short daylight hours, winter in Aiea is milder compared to many other regions.

Weather in January

Aiea, Hawaii embarks on the new year with a mild climate, typical of the Pacific region. A definite shift isn't seen from December to January: temperatures remain placid, daylight hours modest, and rainfall consistent. January does yield a gentle increase in wind speed, contributing to a fresh Hawaiian breeze that's a boon to this tropical haven. Weather in January »

Weather in February

February, the month of love, continues to charm the inhabitants of Aiea with its favorable weather patterns. The increase in cloud cover complements the tropical backdrop without hindering the scenic beauty or obstructing the sunshine. Weather in February »

Weather in March

As March takes hold, the weather remains largely unchanged. This consistency is a testament to Aiea's near-perfect climate, unvaried and affable, with the Pacific Ocean moderating any possible extremes. In March, the hours of sunshine experience a minor decline, balancing with the moderate increase in wind speed. Weather in March »

Weather in April

As Aiea strides into April, the transition becomes clearly visible: the days grow longer, and the air warmer. Consequently, the town flourishes, teeming with vibrant hues from nature's palette. Rainfall drops from March, bringing back the sunny equilibrium the city is known for. Weather in April »

Weather in May

May, the gateway to summer, ushers in perceptibly brighter and warmer days. Aiea blooms under the generous Hawaiian sun, the flora flourishing under the increased sunshine hours. Despite being a precursor to summer, May sees a reasonable moderation in conditions; temperatures do not soar high abruptly. Weather in May »

Weather in June

Beaming with summer radiance, June in Aiea hosts extended hours of sunshine. This brightness does not come at the expense of comfort; the climate remains splendidly equable. The moderation in relative humidity and wind speed accompanies the rise in temperature. Weather in June »

Weather in July

July is undisputedly a summer month in Aiea where the climate reaches its warmest period. However, the Hawaiian respect for natural moderation ensures that 'warm' does not translate into 'uncomfortably hot.' Along with the extended daylight hours, the wind speed slightly increases, bringing the fresh ocean air inland. Weather in July »

Weather in August

The swan-song of summer, August, bows out with grace, enthusiastic sunshine, and just a hint of autumn around the corner. August capitalizes on extended daylight hours by boasting the maximum UV index of the year. Despite the settled weather, wind speed markings display an appreciable drop, aiding to the serene late-summer feel. Weather in August »

Weather in September

September carries the vestiges of summer into Aiea; the sun continues to be generous while rainfall picks up a sporadic tempo. The sea remains inviting, its familiar warmth undiminished, and the beaches retain their vibrancy. Weather in September »

Weather in October

October illuminates Aiea with a reflective autumn glow. The weather gradually stepping away from the spirited summer vivacity, inches closer towards the placid Hawaiian winter. Daylight hours begin to shrink while the temperature scale gently slides downhill. Weather in October »

Weather in November

November in Aiea is a gentle reminder that even the warmest climates can embrace mild winter-like patterns. The weather begins to stabilize: sunshine hours, wind speed, and relative humidity exhibit consistency. The city's ambiance shifts from vibrant to serene as the flora starts to tone down, adopting hues of autumn. Weather in November »

Weather in December

The last month of the year, December, emanates a festive spirit. The Hawaiian climate shifts from a minor chill to blissful warmth, the city gets a fresh splash of greenery courtesy of the frequent drizzles. Daylight hours slump to 10.8 hours, yet the city finds its merriment in the shorter days. Weather in December »