Climate and monthly weather forecast
Phú Quốc, Vietnam

Lying in the tropics, Phú Quốc, Vietnam is categorised under the Am classification of the Köppen climate system, indicating that it has a tropical monsoon climate. This tropical climate of Phú Quốc is dictated primarily by two season patterns, wet and dry, influenced by monsoonal winds. Throughout the year, the temperature ranges from a minimum of 22°C (71.6°F) to a maximum of 34°C (93.2°F) . In comparison with other regions, this island experiences relatively stable temperatures all year round, with only slight fluctuations.

Analysing the provided climate data, it's clear that rainfall levels escalate from February and reach the peak in August at 398mm (15.67"), maintaining high levels until October. Consequently, the number of rainfall days follows a similar pattern, escalating from 3 days in February to 21 days in September. As the rainfall decreases from November onward, a concurrent drop can be noted in the number of rainfall days.

As for the amount of daylight, Phú Quốc receives close to 12 hours of daylight throughout the year. The longest days occur in June with 12.7 hours of daylight, while the shortest are in December with 11.5 hours. Similar to the daylight pattern, the hours of sunshine attained peak in the months of February and March at 8 hours. Following March, there's a slight reduction in sunshine hours, stabilizing around 5 hours from June to September.

In terms of the UV index, the numbers remain high, reaching the maximum value of 12 from March to September. Even in the least intense period, the UV index does not drop below 10 which allows us to infer that Phú Quốc experiences strong UV radiation throughout the year. Regarding sea temperatures, they remain relatively constant throughout the year, fluctuating between 27°C (80.6°F) and 30°C (86°F).

The most opportune time to visit Phú Quốc would be from November to January. During this time, the temperatures are mildly warm, ranging from 22°C (71.6°F) to 31°C (87.8°F), and the rainfall is at its annual low, with 104mm (4.09") in December and up to 212mm (8.35") in November on average. Visitors can enjoy 11.7 hours of daylight in November to 11.5 in December, receiving a fair 6 to 7 hours of sunshine daily. Furthermore, sea temperatures remain pleasing at around 28°C (82.4°F), perfect for indulging in water activities.

The least ideal time to head to Phú Quốc would be between June and September. This interval marks the continuous heavy rainfall months with the highest amount reaching 398mm (15.67") in August. It is also the period that records the highest number of rainfall days, June experiencing 18, and September 21 days. While temperature variations are slight with the high around 32°C (89.6°F) to 31°C (87.8°F), the high humidity caused by the rain might make the place less comfortable.

The spring in Phú Quốc, approximately from March to May, is a transitional period marked by the increase in rainfall and temperature. Temperatures incline slightly, reaching highs of 32°C (89.6°F) in March and 34°C (93.2°F) in April, with lows fluctuating between 23°C (73.4°F) and 24°C (75.2°F). Rainfall accumulation increases from 80mm (3.15") in March to 193mm (7.6") in May, signaling the onset of the wet season. Despite the increment in rain, the island enjoys heightened daylight, reaching 12.4 hours in April while maintaining an average of 8 hours of sunshine.

Characterised by high rainfall, temperatures and humidity, summer in Phú Quốc spans from June to August. Towards the end of August, rainfall peaks at 398mm (15.67"), and the number of rainy days also reaches its maximum at 20. Despite this, temperatures remain constant, ranging from 24°C (75.2°F) to 32°C (89.6°F). The hours of daylight attain their peak with 12.7 hours in June before witnessing a small decrease to 12.5 hours by the end of August. Sunshine remains around 5 hours during this period.

In Phú Quốc, autumn is from September to November. The rainfall gradually decreases from 296mm (11.65") in September to 212mm (8.35") in November. Similarly, the number of rainy days decreases from 21 in September to 13 in November. Temperatures during this period range from 24°C (75.2°F) to 31°C (87.8°F). The island enjoys 11.7 hours of daylight in November and 5 to 6 hours of sunshine each day.

Winter months, December to February, are relatively dry with low rainfall. In December, rainfall is at its lowest at 104mm (4.09") and increases slightly to 40mm (1.57") in February. The number of rainy days also drops to 8 in December and remains low to 4 in February. Temperature ranges from 22°C (71.6°F) to 31°C (87.8°F) during these months. The Winter season also sees a reduction in daylight hours from 11.5 hours in December to 11.6 hours in February. Correspondingly, sunshine hours also diminish to 7 hours a day during these months.

January in Phú Quốc starts on a warm note with prevalent high temperatures typical of this tropical island. The temperature dips slightly at night, although it remains comfortably warm. The rainfall, relatively low, means that raincoats can be left at home more often than not. Weather in January »

February ushers in a shift of weather patterns with a decrease in rainfall and a slight increase in sunshine hours. The sea temperature remains constant, making it suitable for beach activities. As with January, similar high temperatures persist throughout the day. Weather in February »

Phú Quốc in March shows a considerable increment in rainfall making an umbrella a necessary accessory. High temperatures still reign during daytime while evenings remain balmy. Comparing with the previous month, the increase in rainfall and temperature becomes evident. Weather in March »

April's weather in Phú Quốc is a showcase of tropical characteristics with high temperatures and significant rainfall. Constant high sea temperatures encourage aquatic activities. In contrast to the preceding month, April has a more marked increase in both daytime temperatures and rainfall. Weather in April »

A month synonymous with ample rainfall and warm weather, May in Phú Quốc tends to counterbalance things with more sunshine hours. Taking account of the land and sea temperatures, the small discrepancy allows for activities without significant constraint. Weather in May »

Phú Quốc presents a weather pattern in June that incorporates extensive rainfall and high temperatures. While the monthly rainfall is quite significant, it does vary between light showers and thunderstorms. On comparing with the previous weather, the month of June follows the late-May’s weather trend. Weather in June »

Amidst July's highly rainy weather in Phú Quốc, a relative drop in temperature can be observed. Despite extended rainfall, the temperature remains high, making it ideal for various activities. Weather in July follows a similar pattern as seen in June, with an increase in precipitation and shortened sunshine hours. Weather in July »

In August, Phú Quốc weather is characterized by ample rain, moderate sunlight, and a streak of warm temperatures. It’s noticeable that the sea temperature resonates with the air temperature, allowing for equal marine and inland activities. Weather in August »

September in Phú Quốc observes a slight decrease in rainfall, despite remaining substantially high. Comparing September with August, a similar weather pattern can be detected with a noticeable reduction in rainfall. Moving into October, the rainfall continues to decrease albeit slowly. Weather in September »

While October's weather in Phú Quốc signifies quite a bit of rainfall, it's lower than what was recorded in September. By this time, the sunshine hours begin to increase, giving the temperatures a slight boost. Drawing comparisons to the following month, it’s noticeable that November records less rainfall. Weather in October »

November in Phú Quốc features tropical weather conditions with reduced rainfall and warm temperatures. The rainfall is at its lowest since May, and with that, the sunshine hours begin to increase, marking a pleasant change. Weather in November »

Phú Quốc, in December, welcomes noticeable changes in the weather with decreased rainfall and consistent high temperatures. Compared to November, December records a further reduction in rainfall and marginal drop in temperature. Weather in December »