Ko Lanta Temperature by Month
Ko Lanta, Koh Lanta, Thailand has a consistently very warm climate year-round, with daytime highs averaging 30°C (86°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Ko Lanta Monthly Temperatures
Year-round, Ko Lanta experiences a consistently very warm climate. Maximum daytime temperatures range from a very warm 31°C (88°F) in March to a comfortable 29°C (84°F) in the coolest month, January. Nighttime temperatures range from 26°C (79°F) in March to 25°C (77°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Ko Lanta by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. March, the warmest month of the year, receives 185 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Ko Lanta Temperatures: 1976-2026
Browse day-by-day temperature records for Ko Lanta spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Ko Lanta vs Thailand
The map below shows the annual temperature across Thailand. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Ko Lanta vs World: Temperature Compared
Ko Lanta's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Ko Lanta?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Ko Lanta, January is the coolest month, with average highs of 31°C (88°F) and humidity around 75% — considered high. In March, the warmest month, temperatures average 31°C (88°F) with 76% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Ko Lanta's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ko Lanta climate page.
