Climate and monthly weather forecastPago Pago, AS

The climate of Pago Pago

Pago Pago, given its geographical position in the Southern Pacific Ocean, experiences a Tropical rainforest climate (Often described as an Af classification in the Köppen climate classification system). Facing this climate, Pago Pago delivers consistent year-long temperatures, high levels of humidity, and sizeable rainfall throughout all months.

Throughout the year, an examination of the temperature chart reflects minimum temperatures shifting from 79.3°F (26.3°C) to around 82.4°F (28°C), and maximum temperatures oscillating from 81.1°F (27.3°C) to 84°F (28.9°C). This verifies a relatively narrow temperature range, presenting the residents and visitants with a warm and tropical setting year-round.

Relative humidity remains consistently high during the entire year, ranging from 75% to 78%, which brings about a predominantly moist and humid atmosphere. The amount of rainfall is also considerable, accumulating from 1.77" (45mm) at the lowest point to a substantial 6.81" (173mm). Such consistent and substantial rainfall underscores the tropical rainforest climate.

A somewhat distinguishing element in Pago Pago's climate is the relatively constant levels of UV index at 7 throughout all months, suggesting a need for proper sun protection all year round. Concurrently, the wind speed fluctuates from a modest 8.6mph (13.8km/h) to a brisk 15.6mph (25.1km/h).

The best time to visit Pago Pago

Considering the climate parameters, the most appealing time to visit Pago Pago would be between the less rainy months of August, September followed by July, which sees an average rainfall of 2.05" (52mm), 1.77" (45mm), and 2.2" (56mm) respectively. Notably, wind speeds during these months are considerable, registering between 14.7mph (23.7km/h) and 15.6mph (25.1km/h), which could impart a refreshing balance to the tropical heat.

The worst time to visit Pago Pago

Conversely, the least inviting months to visit Pago Pago might be January and February, harmonizing with the peak rainy season. Here, rainfall scales up to 6.81" (173mm) and 6.22" (158mm) respectively, accompanying the high humidity levels which could lead to a considerably clammy and wet experience.

Spring weather in Pago Pago

Spring in Pago Pago, which spans from March to May, displays a gradual reduction in rainfall from 4.69" (119mm) to 4.84" (123mm). Simultaneously, the temperatures peak at 84°F (28.9°C) in April and then slightly cool down to 83.3°F (28.5°C) in May. Sea temperatures remain invitingly warm, hovering around 85.4°F (29.7°C) in March and descending marginally to 84.6°F (29.2°C) in May.

Summer weather in Pago Pago

Pago Pago's summer season, from June to August, witnesses a noticeable drop in rainfall to a minimum 2.05" (52mm) in August. Coinciding with this is a slight drop in temperature, down to 81.5°F (27.5°C) at its lowest. Nevertheless, the sea temperature decreases slightly from 83.9°F (28.8°C) to 82°F (27.8°C) between June and August.

Autumn weather in Pago Pago

Autumn in Pago Pago shows an increase in rainfall, ascending from 1.77" (45mm) in September to 3.98" (101mm) in November. Concurrent with this, temperatures remain reasonably stable, vacillating from 81.5°F (27.5°C) to 82.9°F (28.3°C). Sea temperatures begin to rise again reaching 84.5°F (29.2°C) by November.

Winter weather in Pago Pago

Winter in Pago Pago, from December to February, is identified by abundant rainfall amounting to 6.81" (173mm) in January at its peak. Temperatures fluctuate from 81.9°F (27.7°C) to 83.1°F (28.4°C), while sea temperatures stabilize around 85°F (29.4°C). The wind speed also surges to 15.3mph (24.6km/h) in December, lending some coolness to the tropical heat.

Weather in January

In January, Pago experiences mild weather with consistent conditions typical of American Samoa's tropical climate. The month sees a steady high temperature, while the low temperature remains comfortably warm. A notable factor in January's weather is the high amount of rainfall, measuring at 6.81" (173mm). Weather in January »

Weather in February

The weather in February in Pago exhibits similar characteristics to January, but with slight changes. The average high and low temperatures slightly drop, along with reduced humidity levels. February is the month with the second-highest amount of rainfall, at 6.22" (158mm), making it one of the wettest months of the year. Weather in February »

Weather in March

Moving onto March, the temperature in Pago begins to shift. While high temperatures remain relatively stable, the city sees a slight increase in low temperatures. March marks the beginning of a downward trend in rainfall, receiving only 3.94" (100mm), indicating a transition from rainy to dry period. Weather in March »

Weather in April

April in Pago showcases a blend of weather conditions. While the average high temperature remains consistent, the low temperature shows a slight dip compared with March. The most significant climatic feature in April is an increased amount of rainfall at 4.69" (119mm). Weather in April »

Weather in May

Come May, Pago sees a continuation of April's trends but with slight changes. The high temperature takes a downturn, while the low temperature holds steady. May's noticeable weather feature is the slight increase in rainfall, which stands at 4.84" (123mm). Weather in May »

Weather in June

June heralds the onset of some noticeable changes in Pago's weather. Though the high temperature slightly decreases from May, the lower temperature drops considerably. June sees a substantial decrease in rainfall, receiving only 2.2" (56mm) in comparison with May. Weather in June »

Weather in July

July in Pago presents a weather pattern similar to June but with certain exceptions. The high temperatures continue to dip, but the low temperatures see a substantial drop. Despite the ongoing dry period, July receives a slightly higher rainfall of 2.72" (69mm) than June. Weather in July »

Weather in August

August registers little change in the weather patterns from July in Pago. While high temperatures remain stable, low temperatures see a slight increment. The rainfall in August is 2.05" (52mm), solidifying the continuation of the dry period. Weather in August »

Weather in September

September brings minimal changes in the weather in Pago compared to August. The high temperature sees a minute rise, while the low temperature remains steady. Incredibly, September records the lowest rainfall of the year at 1.77" (45mm). Weather in September »

Weather in October

October in Pago brings increased rainfall, measuring at 3.98" (101mm), marking a transition from a relatively dry to a wet period. Both the high and low temperatures see a rise from September. Though daylight hours continue to extend, the cloud coverage slightly increases. Weather in October »

Weather in November

November's weather features in Pago include an increased level of rainfall, registering a considerable 4.84" (123mm). The high temperatures continue to climb, while the low temperature sees a noticeable boost. Even with less daylight hours compared to October, the sea temperature rises, providing ideal conditions for swimming and snorkeling. The advent of November presents an average high-temperature of a still warm 82.9°F (28.3°C), maintaining a close correlation with the preceding month. Weather in November »

Weather in December

In December, Pago witnesses a further increase in rainfall, amounting to 5.91" (150mm), making it the wettest month of the year. The month also sees higher high and low temperatures. Despite the increase in rain, the sea temperature continues to be inviting for water activities. Weather in December »