Climate and monthly weather forecastInarajan, GU

The climate of Inarajan

Formally recognized with the Köppen climate classification code Af, Inarajan, Guam, USA, sits amidst the biodiversity of the Tropical Rainforest climate. Given such a positioning, the average weather patterns in the region confirm the existence of consistent, high levels of rainfall, high humidity, and a significant warmth year-round. The range of temperature fluctuations across the year is quite narrow, and the warmth continues around the year, with the highest monthly average temperature hitting 84.7°F (29.3°C) and the lowest dipping around 79.7°F (26.5°C).

Humidity figures present the typical statistics of a tropical rainforest, with relative humidity values hovering between 76% to 78%. Parallel to these conditions is the consistent precipitation pattern, confirming the tropical rainforest climate as the inhabiting rainfall is ranging from 1.81" (46mm) to 10.28" (261mm) across different months. Wind speed remains below 16.3mph (26.2km/h) throughout the year, presenting no significant annual variations, fluctuating between 9.6mph (15.4km/h) to 16.3mph (26.2km/h).

One distinctive aspect of Inarajan's weather is the significantly high rainfall during the months of July to October. During this period, the average rainfall spikes up to 7.52" (191mm), and the number of rainy days exceeds 28 days per month, reaching the pinnacle of 10.28" (261mm) in September. In contrast, the period of driest weather is observed between February and April, where rainfall levels fall to an average of 2.28" (58mm).

The best time to visit Inarajan

Factoring in diverse variables like temperature, precipitation, and sunshine duration, the prime time for a trip to Inarajan would be during the late spring, mainly from February to April. These months bring moderate temperature levels, hovering between 79.7°F (26.5°C) to 82.9°F (28.3°C), and rainfall is at the lowest levels of the year. Further, the duration of sunlight increases to an estimated 12.4 hours per day, promoting plentiful daylight for outdoor ventures.

The worst time to visit Inarajan

While every weather condition has its charm and effect, the period from July to October can prove troublesome for visitors in Inarajan. During this time, the town sees the highest rainfall levels, reaching up to 10.28" (261mm), and increased number of rainy days - around 28.9 days per month. Such extensive showers could limit outdoor activities and keep you indoors for an extended period, making it not the ideal time for a visit.

Spring weather in Inarajan

Springtime in Inarajan is pleasantly warm with average high temperatures ranging between 82°F (27.8°C) to 84.2°F (29°C) while the average low temperatures linger around 80.1°F (26.7°C) to 82.2°F (27.9°C). It is the perfect season for outdoor activities with precipitation levels relatively lower, from 2.44" (62mm) to 3.31" (84mm). The daylight hours gradually rise throughout this period, from about 12.1 to 12.7 hours, while daily sunshine hours increase from 8.1 to 10.5 hours.

Summer weather in Inarajan

Inarajan's summer months portray the highest highs and lows, with maximum temperatures peaking at 84.7°F (29.3°C) and minimum temperatures resting at 82.4°F (28°C) to 83.3°F (28.5°C). Simultaneously, these months are the wettest, with the average rainfall fluctuating from 7.52" (191mm) to a high of 10.28" (261mm). Moreover, with the nature of a tropical rainforest, sunlight is somewhat scarce, with an average duration of 7.6 to 8.6 hours per day due to increased cloud coverage.

Autumn weather in Inarajan

Autumn in Inarajan witnesses a decrease in temperature from the summer months, with highs around 84.4°F (29.1°C) to 84.2°F (29°C) and lows from 82.6°F (28.1°C) to 82.8°F (28.2°C). Rainfall remains above average in the early part of the season with 8.46" (215mm) in October, but gradually decreases to 4.69" (119mm) by November. Daily sunshine hours remain low due to increased cloud coverage; however, daylight hours gradually decrease from 12.2 to 11.5 hours.

Winter weather in Inarajan

Winter in Inarajan is warmer than many places, with high temperatures ranging from 83.5°F (28.6°C) to 84.4°F (29.1°C) and lows only slightly cooler at around 80.6°F (27°C) to 82°F (27.8°C). The rainfall decreases to a manageable 2.83" (72mm) by December and 2.99" (76mm) in January, offering a more comfortable travel experience. The amount of daily sunlight is at a yearly low of 6.3 to 6.5 hours per day; however, daylight hours maintain an average of 11.4 hours throughout winter.

Weather in January

Weather conditions in Inarajan, Guam in January slowly transition from the relatively serene period seen in the earlier part of the winter season. The new year is greeted with a slight increase in rainfall to 2.83" (72mm) with 21.3 rainy days, making this month not so ideal for outdoor activities. Weather in January »

Weather in February

February in Inarajan, Guam, displays a slight decline in temperature compared to January, but the difference is almost imperceptible to undiscerning inhabitants and visitors. The drop is likewise echoed in the sea temperatures, however, it remains high enough for year-round swimming possibilities. Weather in February »

Weather in March

March indicates the final days of winter in Inarajan, Guam, as temperatures begin to roam around the annual highs. Weather conditions show a tiny escalation humidity-wise, maintaining the tropical essence of the region, yet it is not discomforting. Weather in March »

Weather in April

Inarajan, Guam in April witnesses a climb in the temperature, indicating the onset of the warmer months. The climate remains consistent with prior months, detailed by warm afternoons and mildly cold evenings. Sea temperatures exhibit a subtle rise, creating the perfect conditions for snorkeling and other aquatic recreational activities. Weather in April »

Weather in May

The weather in May sees Inarajan, Guam welcoming the summer months. Temperatures float in the higher bracket, and sea temperatures also follow suit. Whilst May might not appear as the wettest month, there is a sharp rise in rainfall from April to 3.31" (84mm). Weather in May »

Weather in June

June experiences the advent of the rainy season in full swing in Inarajan, Guam. There is a slight temperature escalation from May leading to warmer days. The higher volume of rainfall, recorded at 3.7" (94mm) spread over 25.4 days, enhances the lush greeneries of the island. Weather in June »

Weather in July

July continues the trend of the rainy season, with Inarajan, Guam experiencing the highest rainfall of the year at 7.52" (191mm). Despite being the wettest month, July does not compromise the warmth as temperatures remain consistently high. Weather in July »

Weather in August

August sustains the momentum of the rainy season started in July in Inarajan, Guam. The warmth remains intact across the island with ocean temperatures at their peak. Although rainfall continues with intensity, amounting to 9.76" (248mm) dispersed over 28.9 days, the ambiance remains blissful. Weather in August »

Weather in September

As September steps in at Inarajan, Guam, the rainfall still varies on the higher side with an average of 10.28" (261mm). This month mugs up to become the second wettest month of the year following August. Despite the showers, the sea temperatures are suitable for those willing to indulge in some beachside fun. Weather in September »

Weather in October

In October, Inarajan, Guam, witnesses a gradual reduction in temperature and rainfall from September. Conditions across the island begin to marginally cool off, signaling the onset of autumn. Sea temperatures start to recede, although they stay warm enough for beach visits and water sports. Weather in October »

Weather in November

November brings a significant change in the weather in Inarajan, Guam, with a reduction in rainfall to 4.69" (119mm). As temperatures begin to recede, the slow transition towards winter becomes increasingly evident. This month marks the onset of milder temperatures, and the sea starts to slightly cool off. Weather in November »

Weather in December

December in Inarajan, Guam, rounds off the year with the commencement of the cooler winter season. Although, 'cool' is a relative term as temperatures maintain a high degree, reflecting the tropical climate of the region. The rainfall drops to 2.99" (76mm) over 22.8 days, revealing a trend towards drier conditions. Weather in December »