Last updated: August 27, 2025
April in Ko Lanta, Thailand is characterized by warm temperatures and frequent rainfall. With maximum temperatures reaching 31°C (88°F) and an average of 28°C (83°F), the island offers a tropical climate that invites beachgoers and adventurers alike. However, be prepared for an abundance of rain, as 180 mm (7.1 in) of precipitation often falls over 22 days, contributing to a humidity level of 71%. Despite the downpours, the island's lush landscapes and vibrant atmosphere make it a captivating destination for those ready to embrace the natural beauty of the region.
In April, Ko Lanta, Thailand, exhibits delightful tropical weather, making it an inviting destination. The temperatures remain consistently warm, with minimums hovering around 25°C (78°F) and averages at a comfortable 28°C (83°F). Visitors can expect pleasant days, as maximum temperatures reach about 31°C (88°F). Compared to the preceding months, April maintains similar warmth, yet feels particularly appealing as the island prepares for the moist monsoon season that follows in May. With these inviting conditions, it's an excellent time for outdoor activities and soaking up the sun on the stunning beaches.
April marks a notable shift in Ko Lanta's climate as the island transitions into the heart of its rainy season. With precipitation soaring to 180 mm (7.1 in) over 22 rainy days, April is characterized by frequent downpours that invigorate the lush landscapes. This marks a dramatic increase from the previous months, where February and March saw only 9 mm (0.3 in) and 33 mm (1.3 in) respectively. The heavy rainfall not only sets the stage for May's even more significant totals but also signals the onset of vibrant greenery, making April a month of transformation. As the island braces itself for the upcoming peak monsoon months, the April showers pave the way for a flourishing environment and an ever-changing coastal charm.
In April, Ko Lanta experiences a delightful dip in humidity, recording a comfortable 71%—a refreshing contrast to the wetter months that follow. After the slightly higher levels in January, February, and March, April marks a transition towards the more humid summer season. Interestingly, this month often serves as a sweet spot for visitors, as the humidity begins to rise again in May, reaching 72%, and then significantly escalates in the subsequent months. Such trends highlight April as an ideal time for outdoor activities, offering pleasant conditions before the island becomes enveloped in the lush humidity of late spring and summer.
In April, Ko Lanta, Thailand, maintains its high UV Index of 15, classifying it under the extreme exposure category, with a rapid burn time of just 10 minutes. This trend continues from the previous month, March, which also recorded a UV Index of 15, emphasizing the need for sun protection during this period. As spring fully unfolds, travelers and locals alike should remain vigilant, as the UV Index in Ko Lanta hovers between 14 and 15 from February through May, showcasing a consistent pattern of intense sun exposure that is emblematic of the tropical climate. For detailed UV Index forecasts and safety tips, visit Ko Lanta UV Index.
UV Risk Categories
April in Ko Lanta, Thailand continues the trend of abundant sunshine, boasting an impressive 315 hours of glorious sunlight. This month follows a remarkable peak in March, which recorded 345 hours, marking the high point of the year. The sunshine starts to gently taper off in April, yet it remains significantly brighter than the preceding months, with February at 311 hours and January at 259 hours. As the island transitions into May, daylight remains generous at 309 hours, ensuring that visitors can fully enjoy the stunning beaches and vibrant local culture during this enchanting time of year. The consistent high sunlight hours from January through April highlight Ko Lanta's attractiveness for sun-seekers looking for the perfect escape.
April in Ko Lanta, Thailand, presents a unique weather scenario with a 23% chance of sunny days, mirroring January and June's conditions. This marks a shift from the higher probabilities seen in February (47%) and March (40%), suggesting that the transition to the monsoon season is starting to influence the climate. As we progress into the months of May and beyond, the likelihood of sunshine declines further, signaling a trend of more overcast and rainy days ahead. So, while April still offers a glimpse of sunlight amidst the encroaching rains, those seeking consistent sunshine might want to consider earlier months for a brighter experience.
In April, Ko Lanta basks in 12 hours of daylight, maintaining the same vibrant exposure enjoyed in the months that follow. This increase in daylight begins in March as the days gradually lengthen, peaking during the warmest months before returning to 11 hours in the latter parts of the year. Travelers can relish the extended golden hours of April, which create the perfect backdrop for beach adventures and stunning sunsets. The consistent daylight throughout the wet season serves as a reminder of the island's tropical charm, making Ko Lanta an inviting destination year-round.
In April, the winds in Ko Lanta, Thailand begin to soften, with an average speed of 3.8 m/s (9 mph)—a slight drop from the breezier months of January through March. This gentle shift indicates a transition into the heart of the warm season, inviting visitors to enjoy the tranquil beaches without the harsher gusts of earlier months. As we move towards May, wind speeds dip slightly further to 3.6 m/s (8 mph), creating an idyllic atmosphere perfect for sun-soaking and water activities. The pattern of calming winds continues through the beginning of the rainy season, allowing for a serene experience in this tropical paradise.
Weather in Ko Lanta varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Ko Lanta, focusing on differences in temperature, rainfall, humidity, and UV levels.
April experiences slightly warmer temperatures compared to January, with average highs reaching 31°C (88°F) versus January’s max of 30°C (86°F). Both months have similar minimum temperatures, around 24-25°C (75-78°F), but April is characterized by significantly higher precipitation, averaging 180 mm (7.1 in) over 22 rainy days, compared to January's 98 mm (3.9 in) over just 8 days. Additionally, while humidity in January is at 76%, it decreases slightly in April to 71%, making the latter month feel a bit less muggy despite the increased rainfall. For more details on January conditions, you can check out Ko Lanta weather in January.
When comparing the weather in April and February, we find that both months maintain a warm temperature range, with February slightly cooler on average. In April, temperatures typically 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). In contrast, February has a minimum of 25°C (77°F), an average of 27°C (82°F), and the same maximum of 31°C. However, April is marked by significantly higher precipitation, with 180 mm (7.1 in) over 22 days, compared to just 9 mm (0.3 in) over 2 days in February. Humidity is also comparable, at 71% in April and slightly higher at 73% in February. For more details on February weather specifically, check out Ko Lanta weather in February.
In comparing the weather of April to that of March, we observe that both months have similar average temperatures, with minimal differences in their ranges. April sees a minimum temperature of 25°C (78°F) and an average of 28°C (83°F), while March also maintains the same minimum and average but reaches a slightly higher maximum of 32°C (89°F). However, April experiences significantly more precipitation, totaling 180 mm (7.1 in) over 22 days, compared to March’s modest 33 mm (1.3 in) spread over just 8 days. Additionally, the humidity slightly decreases from March's 74% to April's 71%. For a detailed look at March weather patterns in this region, you can refer to Ko Lanta weather in March.
April and May showcase warm climates with only slight variations in temperature. 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). However, the month is characterized by significant rainfall, totaling 180 mm (7.1 in) over 22 days and a humidity level of 71%. In contrast, May sees a marginally higher minimum temperature of 26°C (79°F), with a slightly lower maximum of 30°C (87°F) and the same average temperature of 28°C (83°F). Yet, it experiences increased precipitation, amounting to 255 mm (10.1 in) over 27 days, resulting in a similar humidity level of 72%. For more detailed weather information, you can visit Ko Lanta weather in May.
April and June exhibit similar temperature profiles, with both months featuring a minimum of 25°C (78°F) and an average of 28°C (83°F). However, June experiences slightly cooler maximum temperatures, peaking at 30°C (87°F) compared to April's high of 31°C (88°F). Both months have considerable rainfall, but June is notably wetter, receiving 234 mm (9.2 in) over 23 days, compared to April's 180 mm (7.1 in) across 22 days. Additionally, the humidity rises in June to 79%, up from April's 71%, contributing to a more humid atmosphere. For more detailed insights, you can check Ko Lanta weather in June.
In comparing the weather in April and July, both months share similar average temperatures, with April featuring a minimum of 25°C and a maximum of 31°C, while July has slightly higher minimums at 26°C and a maximum of 30°C. However, July tends to be wetter, recording 203 mm of precipitation over 18 days compared to April's 180 mm over 22 days. Additionally, July has higher humidity, averaging 79% compared to April's 71%. For more details on the specific weather conditions in July, you can check Ko Lanta weather in July.
In April, the weather features temperatures ranging 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 substantial rainfall, totaling 180 mm (7.1 in) over 22 days, and humidity levels are around 71%. In contrast, August maintains a similar temperature range with a minimum of 25°C (78°F) and a maximum of 30°C (86°F), averaging 28°C (82°F). However, it sees increased precipitation, totaling 241 mm (9.5 in) over 21 days, along with slightly higher humidity at 82%. For a more detailed look at the weather conditions in August, feel free to check Ko Lanta weather in August.
April and September both exhibit warm temperatures, but September tends to be slightly cooler on average. In April, the minimum temperature is around 25°C (78°F) with an average of 28°C (83°F), while September’s average is 27°C (82°F) with a maximum of 29°C (85°F). However, September experiences significantly higher precipitation, with 306 mm (12.0 in) falling over 24 days compared to April's 180 mm (7.1 in) over 22 days. Additionally, humidity levels rise in September to 84%, compared to April's 71%, making the air feel more muggy during the later month. For more specific weather details, you can check Ko Lanta weather in September.
In April, the weather on Ko Lanta is warm and humid, with temperatures ranging from a minimum of 25°C (78°F) to an average of 28°C (83°F) and a maximum of 31°C (88°F). However, the month also sees considerable precipitation, with about 180 mm (7.1 in) falling over 22 days.
In contrast, October experiences slightly cooler average temperatures, with a range of 25°C (77°F) to 30°C (86°F), but it is significantly wetter, receiving 314 mm (12.4 in) of rain over 26 days. Additionally, October's humidity is higher at 83%. For a more detailed look at what to expect, check out Ko Lanta weather in October.
April and November both offer warm temperatures in Ko Lanta, with April typically boasting slightly higher averages, ranging from a low of 25°C (78°F) to a high of 31°C (88°F). In comparison, November sees slightly cooler temperatures, with a minimum of 25°C (77°F) and a maximum of 30°C (87°F). However, November is noticeably wetter, receiving 257 mm (10.1 in) of precipitation over 26 days, compared to April's 180 mm (7.1 in) over 22 days. Additionally, November has higher humidity at 84%, compared to April's 71%, making the latter month feel a bit more comfortable. For more detailed insights, you can check Ko Lanta weather in November.
April and December exhibit warm temperatures, with April being slightly hotter on average. In April, temperatures range from a minimum of 25°C (78°F) to a maximum of 31°C (88°F), whereas December sees a more moderate temperature range from 24°C (76°F) to 30°C (86°F). April also experiences higher precipitation, with around 180 mm (7.1 in) over 22 days, compared to December's 134 mm (5.3 in) over 14 days. Additionally, humidity levels are higher in December at 84%, compared to April's 71%. For more detailed weather patterns, you can visit Ko Lanta weather in December.
As you plan your visit to Ko Lanta in April, you'll experience warm temperatures that hover around a pleasant 28°C (83°F) on average, making it a great time for beach activities. However, you might want to keep an umbrella handy, as this month tends to be particularly wet, with 22 days of precipitation adding up to 180 mm of rain. Compared to other months, April stands out for its increased humidity at 71%, which can make the heat feel more intense. Embrace the tropical climate and discover why April is a unique time to explore Ko Lanta. For further insights into the weather patterns throughout the year, visit Ko Lanta Climate.