Last updated: August 27, 2025
August in Ko Si Chang, Thailand offers a tropical climate characterized by warm temperatures and high humidity. With a maximum reaching 31°C (89°F) and a gentle average of 29°C (84°F), visitors can expect balmy weather, although the minimum dips to 26°C (79°F) during the night. This month also sees considerable precipitation, with 138 mm (5.4 in) spread across 22 days, making it one of the wetter months of the year. Despite the rain, the island’s lush landscape thrives under the 88% humidity, creating a vibrant and refreshing atmosphere that invites exploration and relaxation.
In August, Ko Si Chang enjoys a warm tropical climate, with temperatures maintaining a generally pleasant profile. With a minimum temperature of around 26°C (79°F) and an average around 29°C (84°F), visitors can expect comfortable conditions ideal for exploration. The maximum temperature peaks at 31°C (89°F), slightly lower than the scorching highs of the preceding months, making it a perfect time for beach activities without the relentless heat. As the month transitions into September, a slight dip in temperatures becomes apparent, foreshadowing the cooler days ahead. Overall, August presents a delightful balance of warmth and humidity, inviting travelers to soak in the beauty of this enchanting island.
In August, Ko Si Chang experiences a significant surge in precipitation, with an average of 138 mm (5.4 in) of rainfall over 22 days. This marks a continuation of the rainy season trend, following July's rainfall of 134 mm (5.3 in) across 23 days, both contributing to the island's lush, vibrant landscapes. The month is characterized by frequent showers, setting the stage for the even heavier rains that September brings, with an impressive 250 mm (9.8 in) expected. The progressive increase in precipitation from the earlier months, particularly noticeable from April to September, reflects the monsoon's stronghold on the region, providing vital water resources for the local ecosystem and enhancing the tropical ambiance of this picturesque destination.
In Ko Si Chang, Thailand, August marks a peak in humidity, soaring to 88%, making it the most humid month of the year. This significant rise is evident as the island transitions from the warmer months of June and July, which already experience oppressive humidity levels of 85% and 86%, respectively. Following the trend of increasing moisture, the humidity steadily climbs from a milder 61% in March, through the sweltering months of April and May, before reaching its zenith in August. Interestingly, this peak is followed by a slight decrease in September, hinting at a gradual shift towards the drier months ahead. As the humidity transitions from the peak of summer, visitors can expect a tropical climate that defines the charm of this coastal paradise.
Throughout the year in Ko Si Chang, Thailand, the UV Index reveals a striking pattern, particularly from January to August. Starting with a very high index of 10 in January, the UV levels soar significantly, peaking at 14 from March through July, signaling an extreme risk of sun exposure. This intensity continues into August with the same UV index of 14, maintaining a burn time of just 10 minutes. As the year progresses into fall, the index slightly decreases, returning to 13 in September and October before dropping to the safer levels of 10 in November and 9 in December. This trend highlights the critical importance of sun protection during the summer months when the UV Index remains at its highest. For more detailed information, visit Ko Si Chang UV Index.
UV Risk Categories
In August, Ko Si Chang basks in a delightful average of 287 hours of sunshine, continuing a trend of abundant daylight that begins in the earlier months. This island paradise experiences its sunniest period from March to April, with peak hours reaching 336 and 321, respectively. Although August matches July's sunny disposition, both months contrast with the brighter spring, hinting at a gentle transition toward the lush, cooler days of fall. The gradual decline in sunlight in September, which dips to 267 hours, suggests a shift toward the rainy season, making August a perfect time for sun-seekers to savor the warmth before the changes in weather. Overall, Ko Si Chang offers a vibrant tableau of sunshine, with August standing firm in the middle of a radiant seasonal spectacle.
In Ko Si Chang, Thailand, the likelihood of sunny weather takes a notable dip in August, with only a 10% chance of sunshine. This pattern emerges after a gradual decline from the relatively brighter months of January and February, which boast chances as high as 59% and 75%, respectively. As summer progresses, a trend of diminishing sunshine becomes evident, culminating in the peak of the rainy season where July also sees a mere 12% of clear skies. Following August, the weather remains similarly overcast, making late July to August a less favorable time for sun seekers on this charming island.
In Ko Si Chang, Thailand, the daylight duration experiences a rhythmic pattern throughout the year. As the calendar turns from January to March, daylight gradually increases, peaking at 12 hours from March through to August. This consistent stretch of 12 hours showcases the region's equatorial charm, allowing ample time to soak in the sun's rays during the summer months. Following this zenith, a subtle decline in daylight begins, tapering back to 11 hours by the time November rolls in. Overall, August maintains this wonderful daylight balance, making it a perfect month for enjoying the island's breathtaking landscapes and vibrant sunsets.
In August, Ko Si Chang experiences a pleasant average wind speed of 4.3 m/s (10 mph), contributing to the island's refreshing tropical atmosphere. The winds are generally stronger in the summer months, peaking in June at 4.8 m/s (11 mph), while gradually decreasing as the seasons change into the fall. Notably, the consistency of wind speed in August reflects the island’s breezy charm during this time of year, positioned between the earlier summer highs and the milder autumn breezes that follow. This trend underscores Ko Si Chang as a perfect retreat for those seeking a balance of warmth and refreshing winds throughout the late summer months.
Weather in Ko Si Chang varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Ko Si Chang, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather is typically hot and humid, with average temperatures around 29°C (84°F) and frequent rain, totaling 138 mm (5.4 in) over about 22 days. The high humidity at 88% contributes to a steamy atmosphere. In contrast, January offers a more pleasant climate with lower humidity at 59% and milder temperatures, averaging 27°C (81°F). Precipitation is also significantly reduced to just 24 mm (0.9 in) spread over only 3 days, making it an ideal time for outdoor activities. For more details on January weather, you can check Ko Si Chang weather in January.
August and February present contrasting weather conditions. In August, temperatures range from a minimum of 26°C (79°F) to a maximum of 31°C (89°F), with an average of 29°C (84°F). This month is characterized by high humidity at 88% and significant precipitation, totaling 138 mm (5.4 in) over 22 rainy days. In contrast, February experiences milder weather with a minimum temperature of 21°C (70°F) and a maximum of 32°C (89°F), averaging 27°C (82°F). The humidity drops to 58%, and the month sees only 19 mm (0.7 in) of rain over just 4 days. For those looking to delve deeper into February's climate, you can find more information here: Ko Si Chang weather in February.
August and March present distinct weather patterns. In August, the temperatures range from a minimum of 26°C (79°F) to a maximum of 31°C (89°F), with an average temperature of 29°C (84°F). This month also sees significant rainfall, with 138 mm (5.4 in) of precipitation over approximately 22 days and a high humidity level of 88%. In contrast, March features slightly cooler conditions, with temperatures ranging from 24°C (76°F) to 32°C (90°F), maintaining the same average temperature of 29°C (84°F) as August. However, March experiences much less rainfall, totaling only 38 mm (1.5 in) over 7 days, alongside lower humidity at 61%. For more detailed information about the weather in March, check out Ko Si Chang weather in March.
When comparing the weather in August and April, it’s clear that both months experience warm temperatures, but there are notable differences. In August, the average temperature ranges from a minimum of 26°C (79°F) to a maximum of 31°C (89°F), accompanied by high humidity levels of 88% and significant rainfall of 138 mm (5.4 in) spread over 22 days. In contrast, April tends to be hotter, with temperatures hitting a maximum of 34°C (93°F) and averaging 29°C (85°F), but it has less precipitation at 100 mm (3.9 in) over 14 days and lower humidity at 70%. For more specific insights into the weather during this month, you can visit Ko Si Chang weather in April.
In comparing the weather of August and May, both months experience warm averages, but with notable differences. August sees a slightly higher minimum temperature of 26°C (79°F) and a maximum of 31°C (89°F), while May experiences a warmer maximum of 34°C (93°F). Humidity levels are higher in August at 88%, compared to May's 80%. Precipitation in August is less frequent, occurring on 22 days with a total of 138 mm (5.4 in), whereas May has more precipitation at 160 mm (6.3 in) over 19 days. For more detailed information about May weather in Ko Si Chang, visit Ko Si Chang weather in May.
In comparing the weather patterns of June and August, both months exhibit similar temperature ranges with minimums around 26°C (79°F/80°F) and average temperatures peaking at 29°C (84°F/85°F). However, August tends to be slightly warmer on average with temperatures reaching a maximum of 31°C (89°F), whereas June hits a peak of 32°C (90°F). In terms of precipitation, August is notably wetter, receiving 138 mm (5.4 inches) over 22 days compared to June's 99 mm (3.9 inches) over 21 days. Additionally, August exhibits a higher humidity level at 88%, compared to June's 85%. For more detailed information about weather conditions during June, you can visit Ko Si Chang weather in June.
In comparison to July, August experiences slightly milder maximum temperatures, peaking at 31°C (89°F) compared to July's 32°C (90°F). Both months share similar minimum and average temperatures, maintaining a comfortable range of around 26°C (79°F) to 29°C (84°F). However, August sees a slightly higher precipitation level at 138 mm (5.4 in) over 22 days, while July has 134 mm (5.3 in) across 23 days. Humidity is also marginally higher in August at 88%, compared to July's 86%. For more detailed information about July weather, visit Ko Si Chang weather in July.
In comparing the weather of August and September, both months exhibit warm temperatures, with August averaging 29°C (84°F) and September slightly cooler at 28°C (83°F). August sees a minimum temperature of 26°C (79°F) and a maximum of 31°C (89°F), while September offers a minimum of 25°C (78°F) and a maximum matching August's high at 32°C (89°F). Precipitation significantly increases in September, with 250 mm (9.8 in) over 25 days, compared to August's 138 mm (5.4 in) over 22 days, indicating a wetter month ahead. Humidity remains relatively constant, with August at 88% and September slightly lower at 87%. For more details on September weather, visit Ko Si Chang weather in September.
In August, temperatures typically range from a minimum of 26°C (79°F) to a maximum of 31°C (89°F), with an average temperature of 29°C (84°F). The month experiences significant rainfall, with 138 mm (5.4 in) of precipitation over 22 days and high humidity at 88%. In contrast, October sees slightly lower minimum temperatures at 24°C (76°F) and a similar average of 28°C (82°F), but it can reach up to 32°C (91°F) during peak days. Notably, October experiences a higher amount of precipitation, totaling 232 mm (9.1 in) over the same number of rainy days, coupled with a moderate humidity level of 83%. For a more detailed look at what to expect, you can check Ko Si Chang weather in October.
August and November exhibit distinct weather patterns. In August, temperatures range from a minimum of 26°C (79°F) to a maximum of 31°C (89°F), accompanied by high humidity at 88%. This month experiences significant rainfall, with 138 mm (5.4 in) over 22 days, creating a humid and soggy atmosphere.
Conversely, November presents a slight drop in minimum temperatures to 23°C (74°F) and an average of 28°C (82°F), with a peak of 33°C (91°F). Rainfall is also considerably lower, totaling 56 mm (2.2 in) over just 11 days, and the humidity decreases to 78%. As a result, November offers a more pleasant and drier climate compared to the wet and humid conditions of August. For more detailed information, you can visit Ko Si Chang weather in November.
In comparing the weather between August and December, August is characterized by higher temperatures and humidity. The average temperature during August hovers around 29°C (84°F), with daily minimums of 26°C (79°F) and maximums reaching up to 31°C (89°F). This month is also quite rainy, experiencing precipitation on 22 days with a total of 138 mm (5.4 in) of rainfall, contributing to a high humidity level of 88%.
In contrast, December offers a more moderate climate, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 32°C (91°F) and an average of 27°C (81°F). Precipitation is significantly lower in December, averaging only 28 mm (1.1 in) over just 3 days of rainfall, and the humidity reduces to a comfortable 70%. For a more detailed look at December weather, you can visit Ko Si Chang weather in December.
August in Ko Si Chang brings a distinct transition in weather compared to other months of the year. With average temperatures hovering around a warm 29°C, the island experiences higher humidity levels at 88%, creating a perpetually muggy atmosphere. Precipitation spikes significantly, with rain on nearly three-quarters of the days, resulting in a lush and vibrant landscape but also necessitating some planning for outdoor activities. This lushness, paired with cloudier skies and warmer nights, sets August apart as a month of dynamic weather that offers both challenges and beauty. For a more detailed understanding of what to expect throughout the year, visit Ko Si Chang Climate.