Climate and monthly weather forecast
Ko Kut, Thailand

Ko Kut, an enchanting island in eastern Thailand, sits within the geographical zone that is categorised by a tropical monsoon climate, according to the Köppen climate classification defined as Am. The overarching characteristic of this climate is rainfall, particularly during the monsoon season, with varying degrees of warmth and humidity throughout the year.

Temperatures across the twelve months show little variation with sea temperatures ranging from the year's low of 27.9°C (82.2°F) in January to the peak of 30.3°C (86.5°F) in May. Periods of daylight, relatively consistent due to the location's equatorial proximity, experience subtle shifts varying from from 11.4 hours in December to a high of 12.8 hours in June.

The notable unvarying weather parameters promote a year-round warm and humid climate. The predominantly balmy seawater temperatures contribute to the island's lush vegetation and allow for pleasant sea-based activities throughout the twelve months.

Interestingly, the daylight hours see a slight increase as the year progresses reaching its peak during the middle of the year, before following a gradual decrease towards December. This translates to longer days during the middle of the year, providing visitors with more daylight hours to engage in outdoor activities.

Planning travel to Ko Kut depends heavily on personal preference for sun, or a tolerance for rainfall. For those seeking sun-soaked shores, the best period falls between January and May, when seawater temperatures are warming up steadily from 27.9°C (82.2°F) to reach the peak of 30.3°C (86.5°F). The increasing daylight hours during this period also contribute to the appeal, reaching up to 12.7 hours in May.

The daylight hours coupled with warm sea temperatures create comfortable swimming conditions and offer ample time for outdoor and sea-based activities. Tourists during this period can luxuriate in the sublime seaside environment, making it a standout time to experience the island's charming offerings.

While Ko Kut's temperate climate is enticing throughout the year, the least favourable period for visitors would be during the last quarter. During October to December, sea temperatures gradually descend from 29.4°C (84.9°F) to 28.8°C (83.8°F). While still comfortable for swimming, these months also see a corresponding decrease in the length of daylight hours. Elements such as these offer limited time for daylight activities and less-than-ideal sea conditions.

More notably, it marks a transition towards shorter days and the onset of the Northeast Monsoon - a period often accompanied by heavy rainfall, making it the least ideal time for outdoor and water-based activities.

In Ko Kut, the captivating spring months of March, April, and May bring progressively warmer sea temperatures. The fluctuation rises from 28.7°C (83.7°F) to 30.3°C (86.5°F), combined with increasing daylight hours from 12.1 to 12.7 hours. The warmer sea temperatures and extended daylight hours make this season ideal for exploring coral reefs and underwater ecosystems.

The longer days enhance opportunities for outdoor exploration, adventurist activities, and sublime sunrises and sunsets - unveiling the unique appeal of the season on the island.

Summer in Ko Kut, extending from June to August, is characterised by the highest average sea temperatures, varying from 30.3°C (86.5°F) down to 29.2°C (84.6°F). Daylight hours maintain their peak in June at 12.8 hours, then slightly reduce to 12.5 hours by August.

This season provides tourists with optimal conditions for water-based activities including snorkeling and diving. With the warmth of the sea and the extended hours of daylight, visitors can maximise their time exploring the island's marine wonders and golden sandy beaches.

Autumn months of September, October, and November in Ko Kut see the sea temperatures progressively lessen from 29°C (84.2°F) to 29.5°C (85.1°F). Concurrently, daylight hours diminish, descending from 12.2 hours to 11.6 hours. As the daylight hours reduce, so do the opportunities for daytime activities.

The gradual decrease in sea temperatures and daylight hours mark the transition towards shorter days and the onset of the Northeast monsoon. Despite this, the months still offer comfortable warmth for aquatic excursions and beach activities before the heaviest rains arrive.

Winter in Ko Kut, marked by December, January, and February, portrays the coolest sea temperatures of the year varying from 28.8°C (83.8°F) up to 28.1°C (82.6°F). Daylight hours also tend to decrease to their lowest at 11.4 hours in December, then mildly elevate to 11.8 hours by February.

Though these are the coolest seawater temperatures of the year, they still remain warm enough for water-based activities. The reduced daylight hours result in shorter days that are ideal for those preferring a more leisurely pace of holiday, painted with stunning sunrises and early sunsets.

The arrival of the year in Ko Kut, Thailand, begins with noticeably warm and comfortable weather. Quietly transitioning from December, the January climate delivers a gentle rise in temperatures hovering around 27.9°C (82.2°F) to 28.1°C (82.6°F) in the sea. Weather in January »

February’s weather marks the continuation of warmth while bidding farewell to January’s cool evenings. The climate transitions subtly from the preceding month, with the sea temperature climbing to around 28.1°C (82.6°F) to 28.7°C (83.7°F). Weather in February »

In Ko Kut, March signifies the advent of increased heat and longer daylight hours as compared to the previous month. Consequent to February, the sea temperature crawls upwards to peak around 28.7°C (83.7°F) to 29.9°C (85.8°F). Weather in March »

April in Ko Kut experiences a progressive rise in heat echoing the climate of the preceding month. Following March, the sea’s temperature sees a brisk escalation to about 29.9°C (85.8°F) to 30.3°C (86.5°F). The daylight extends noticeably, measuring approximately 12.4 hours, offering more outdoor leisure time. Weather in April »

Amid May, Ko Kut’s temperatures slightly recede from the previous month, signalling a slight shift in the island’s climatic rhythm. A minute drop in the sea temperature from April is noticed, settling between 30.3°C (86.5°F) and 29.9°C (85.8°F). Weather in May »

The arrival of June sees the mellowing of the previous month’s heat. A smooth transition from May’s climate is observed as the sea temperature drops from 29.9°C (85.8°F) to 29.4°C (84.9°F). Bathed in daylight of around 12.8 hours, the calendar's midway point attracts both leisure and adventure seekers. Weather in June »

July ushers in a subtle downward trend in Ko Kut’s temperatures following June. The befitting sea temperature ranges from 29.4°C (84.9°F) to 29.2°C (84.6°F), reflecting a tempered warmth. Also, the daylight hours slightly decrease to approximately 12.7, mirroring the gentle shift of the season. Weather in July »

Encouraging a mild transition from the previous month, August asserts its presence with a slight decline in sea temperatures to around 29.2°C (84.6°F) from 29°C (84.2°F). With about 12.5 daylight hours, the month guarantees plenty of sun-soaked outings. Weather in August »

September in Ko Kut signals a gentle shift in the climatic rhythm with a marginal decrease in sea temperatures from 29°C (84.2°F) to 29.4°C (84.9°F). Meanwhile, daylight gradually decreases to approximately 12.2 hours, subtly marking the advent of the year's latter part. Weather in September »

More daylight (about 11.9 hours) characterizes October in Ko Kut, announcing the onset of a slightly cooler phase. The sea temperatures subtly rise from 29.4°C (84.9°F) to 29.5°C (85.1°F), heralding a shift in the atmospheric rhythm. Weather in October »

November in Ko Kut sees a continuation of October's pleasantness with a further increase in sea temperatures from 29.5°C (85.1°F) to 28.8°C (83.8°F). The daylight hours decline marginally to approximately 11.6, signifying the year's twilight. Weather in November »

December in Ko Kut concludes the year's journey with consistent warmth from the sea at about 28.8°C (83.8°F). The shorter daylight hours of roughly 11.4 signify the onset of winter, culminating the year's cycle. This period transitions gradually from November, ensuring continuity of the city's tropical appeal. Weather in December »