Last updated: August 27, 2025
April in Koh Tao, Thailand presents a tropical paradise with warm temperatures, averaging around 28°C (83°F), peaking at a maximum of 31°C (88°F). Visitors can expect a considerable amount of moisture, as the island experiences 133 mm (5.3 in) of rainfall over 16 days, creating a humid atmosphere with an average humidity level of 69%. This combination of warmth and frequent showers nurtures the lush landscapes, making April an enchanting time for exploration and relaxation on this stunning island.
In April, Koh Tao experiences a delightful warming trend, with temperatures continuing their ascent toward the sizzling heights of summer. The month begins with a comfortable minimum of 25°C (78°F), perfectly balancing the daytime warmth, while the average temperature hovers around 28°C (83°F). As the days progress, the maximum temperature peaks at a toasty 31°C (88°F), inviting beachgoers and adventurers alike to bask in the sun. This steady rise from the previous months reflects the island's transition into a vibrant, sun-soaked atmosphere, making April an ideal time for exploration and relaxation under the tropical skies. As the heat intensifies, the allure of Koh Tao's pristine waters and lush landscapes becomes even more irresistible.
April in Koh Tao, Thailand, ushers in a significant uptick in precipitation, with 133 mm (or 5.3 inches) of rain falling over 16 days. As the dry months of January and February fade away, April marks a transition into the wetter season, laying the groundwork for even heavier rainfall in May and beyond. This month’s rainfall is nearly four times that of March, indicating the onset of more frequent showers that prepare the island for the lush vibrancy of summer. While the rainfall adds a refreshing touch to the tropical paradise, it also signals nature's rebirth, making it a perfect time for travelers to witness Koh Tao's flourishing landscapes amidst the warm, balmy air.
In April, Koh Tao experiences a humidity level of 69%, which is a slight increase from March's 68%. This moderate humidity heralds the transition into the warmer months, setting the stage for the upcoming rainy season. As the year progresses, humidity levels rise significantly, peaking in August at 88%. The island's tropical climate means that visitors can expect a gradual shift toward more humid conditions as May brings a notable jump to 77%, followed by the sultry summer months that characterize Koh Tao's environment. Despite this upward trend, April still offers a comfortable atmosphere, perfect for enjoying the island's stunning beaches before the humidity escalates.
In April, Koh Tao, Thailand, continues to experience the intense solar rays characteristic of early spring, with a UV Index peaking at 15—indicating an extreme exposure category and a burn time of just 10 minutes. This trend mirrors the preceding month of March, which also recorded a UV Index of 15, emphasizing the region's consistently high levels of ultraviolet radiation. As summer approaches, the UV Index in Koh Tao remains elevated, with similar values expected in May, making sun protection essential for both residents and visitors. For detailed information about daily variations, visit Koh Tao UV Index. Staying informed can help ensure a safer, sunnier experience!
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As April arrives in Koh Tao, Thailand, the island basks in an impressive 317 hours of sun, showcasing a slight dip from the previous month but still retaining a vibrant glow. Following the sunniest streak of the year in March, where sunlight surged to 345 hours, April marks a transition as the days begin to warm up further into the spring. This time of year effortlessly links the peak sunshine of the first quarter with the inviting radiance of May, which promises 328 hours of bright days ahead. Visitors can indulge in the perfect balance of sunshine, as April's rays continue to enhance Koh Tao's stunning beaches and vibrant underwater life, setting the stage for unforgettable adventures.
When planning a trip to Koh Tao, Thailand in April, it's essential to consider the likelihood of sunny weather. With a 29% chance of sun, April marks a noticeable dip from the preceding months, particularly February, which enjoys a robust 60% sunshine probability. While March still boasts a respectable 53% chance, the weather begins to shift as the island transitions into the rainy season, with the sun becoming less reliable. This trend of diminishing sunshine continues into May and beyond, suggesting that travelers aiming for clear skies may want to reconsider their timing, favoring the earlier months for a more promising tropical experience.
In April, Koh Tao enjoys a delightful 12 hours of daylight, a continuation of the trend that emerged in March. This harmonious balance of light is indicative of the island's transition into the warmer months, maintaining the same luminous hours that will extend through May and into the summer. With daylight peaking for several months in a row, April offers an ideal opportunity to soak up the sun, explore vibrant coral reefs, and indulge in the tranquil beauty of this tropical paradise. As the island shifts towards the rainy season, these long, sun-filled days provide a perfect backdrop for adventure and relaxation alike, making Koh Tao a captivating destination during this time.
In Koh Tao, Thailand, April graces the island with the gentle embrace of milder winds, averaging 3.7 m/s (8 mph). This marks a notable decrease from the preceding months, where January's 5.5 m/s (12 mph) and February's 4.7 m/s (10 mph) set a brisker pace. As the island transitions into the sweltering heat of summer, the winds gradually pick up again in May, reaching 4.2 m/s (9 mph). This trend showcases the island’s unique climate rhythm, where softer breezes in April invite a more tranquil atmosphere, perfect for those seeking serenity before the winds return to their playful dance in the months ahead.
Weather in Koh Tao varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Koh Tao, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in April and January, April tends to be slightly warmer, with average temperatures ranging from a minimum of 25°C (78°F) to a maximum of 31°C (88°F). In contrast, January's temperatures are a bit cooler, averaging between 24°C (76°F) and 28°C (84°F). Precipitation is more frequent in April, with rain expected on 16 days, while January sees rain on only 10 days, although it has slightly higher total precipitation at 148 mm (5.8 in) compared to April's 133 mm (5.3 in). Additionally, January has a slightly higher humidity level at 72%, compared to April's 69%. For more information, you can check out Koh Tao weather in January.
In comparing the weather between April and February, April tends to be slightly warmer, with average temperatures reaching around 28°C (83°F) compared to February’s 27°C (81°F). The maximum temperatures in April can rise to 31°C (88°F), while February peaks at 29°C (85°F). Additionally, April experiences significantly more rainfall, totaling 133 mm (5.3 in) over 16 days, whereas February sees just 37 mm (1.5 in) across 7 days. Humidity levels are fairly consistent between the two months, with April at 69% and February at 68%. For more details on February's weather, you can visit Koh Tao weather in February.
In comparing the weather of April and March, both months exhibit warm temperatures, with March having a slightly lower maximum temperature of 30°C (86°F) compared to April's 31°C (88°F). The minimum temperatures remain consistent at 25°C (78°F) in both months, and the average temperature is almost identical, with March averaging 28°C (82°F) and April slightly higher at 28°C (83°F). However, April experiences significantly more rainfall, with 133 mm (5.3 in) over 16 days, contrasting sharply with March's much drier conditions of 33 mm (1.3 in) over just 6 days. Humidity levels are comparable, with April at 69% and March at 68%. For more detailed information, you can visit Koh Tao weather in March.
In April, the weather features a minimum temperature of 25°C (78°F) and an average of 28°C (83°F), with highs reaching up to 31°C (88°F). The month experiences significant precipitation, totaling 133 mm (5.3 in) over 16 days, accompanied by a humidity level of 69%. In comparison, May sees slightly warmer temperatures, with a minimum of 26°C (79°F) and an average of 29°C (84°F), although the maximum remains consistent at 31°C (89°F). The rains are more pronounced in May, with total precipitation increasing to 153 mm (6.0 in) over 22 days and humidity rising to 77%. For a more detailed overview, you can check out Koh Tao weather in May.
In comparing the weather of April and June, we see some similarities and a few notable differences. Both months experience an average temperature of around 28°C (83°F), with maximum temperatures peaking at 31°C (88°F) in April and 31°C (89°F) in June. However, June tends to be slightly wetter, with precipitation amounting to 137 mm (5.4 in) over 19 days, compared to April's 133 mm (5.3 in) over 16 days. Additionally, humidity levels increase in June to 86%, making the air feel more humid than in April, where the humidity averages 69%. For more detailed insights on the weather during this period, you can explore Koh Tao weather in June.
April and July exhibit similar average temperatures of around 28°C (83°F), with both months experiencing maximum highs of 31°C (88°F). However, while April has a slightly lower minimum temperature of 25°C (78°F) compared to July's 26°C (79°F), the humidity levels rise noticeably in July to 86%, making it feel more humid than in April, which has a humidity of 69%. Additionally, April sees higher precipitation at 133 mm (5.3 in) over 16 days, while July has 113 mm (4.4 in) over 19 days. For more detailed information on July's weather patterns, check out Koh Tao weather in July.
In April, the weather features warm temperatures with a minimum of 25°C (78°F), an average of 28°C (83°F), and a maximum of 31°C (88°F). While the total precipitation is similar to that in August at 133 mm (5.3 in), it occurs over fewer days, with rain falling on 16 days. The humidity level is a comfortable 69%. In contrast, August sees slightly warmer nights with a minimum temperature of 26°C (79°F), maintaining the same average and maximum temperatures as April. However, it has increased rainfall, occurring on 21 days, and higher humidity at 88%. For more information, you can check Koh Tao weather in August.
April and September share similar average temperatures, with both months averaging around 28°C (82°F). However, April tends to be slightly warmer, with maximums reaching 31°C (88°F) compared to September’s 30°C (86°F). Notably, September experiences significantly more precipitation, with 192 mm (7.6 in) over 22 days, compared to April’s 133 mm (5.3 in) over 16 days. Additionally, the humidity is higher in September at 87%, compared to April’s 69%. For more details on the weather trends in September, check out Koh Tao weather in September.
April and October exhibit distinct weather patterns, both characterized by warm temperatures but differing in precipitation levels. In April, temperatures typically range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), with an average of 28°C (83°F). The month experiences significant rainfall, with 133 mm (5.3 in) over approximately 16 days, resulting in a humidity level of 69%.
In contrast, October sees slightly cooler temperatures, with a minimum of 25°C (77°F), an average of 27°C (82°F), and a maximum of 30°C (86°F). However, it is much wetter, receiving 242 mm (9.5 in) of rain across 27 days, and the humidity rises to a considerable 86%. For more details on the weather in October, you can visit Koh Tao weather in October.
April and November showcase distinct weather patterns, although both months maintain warm temperatures. In April, temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), with an average of 28°C (83°F) and a humidity level of 69%. However, this month experiences less rainfall, totaling 133 mm (5.3 in) over 16 days. In contrast, November sees slightly cooler temperatures, with a range of 25°C (77°F) to 29°C (85°F) and an average of 27°C (82°F). However, it is much wetter, with precipitation reaching 281 mm (11.0 in) spread over 22 days and a higher humidity level of 87%. For more detailed information about the weather in November, you can check Koh Tao weather in November.
April and December present distinct weather patterns in terms of temperature and humidity. In April, temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), with an average temperature of 28°C (83°F). The month experiences moderate precipitation, totaling 133 mm (5.3 in) across 16 days, and a humidity level of 69%. In contrast, December features slightly cooler temperatures, with a minimum of 24°C (75°F) and a maximum of 29°C (85°F), averaging 27°C (81°F). However, December sees increased rainfall, accumulating 191 mm (7.5 in) over 14 days, coupled with higher humidity at 83%. For more detailed insights, visit Koh Tao weather in December.
As April envelops Koh Tao, the island experiences a vibrant transformation in its weather, marked by rising temperatures and increased humidity level. With maximum highs reaching a balmy 31°C, the days can feel particularly warm, while the average temperature hovers around a comfortable 28°C. However, the month also brings a notable uptick in precipitation, with rain gracing the island on about half the days, making it one of the wetter months in the annual cycle. This combination of warmth and humidity fosters a lush environment, setting April apart from the drier months that precede it. For those looking to understand the broader climatic patterns, the details are further elaborated in our comprehensive guide on Koh Tao Climate.