Ko Larn Temperature by Month
The average annual maximum temperature in Ko Larn, Chon Buri Province, Thailand is 31°C (88°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Ko Larn compares to cities worldwide.
Ko Larn Monthly Temperatures
In Ko Larn temperatures are generally consistent throughout the year. Maximum daytime temperatures range from a very warm 30°C (86°F) in December to a very warm 32°C (90°F) in April. Nighttime lows range from 28°C (82°F) in April to 25°C (77°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Ko Larn by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. April, the warmest month, averages 205 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Ko Larn 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 Larn vs World: Temperature Compared
Ko Larn's average annual maximum temperature is 31°C (88°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Ko Larn?
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 Larn, December is the coolest month, with average highs of 30°C (86°F) and humidity around 70% — considered high. In April, the warmest month, temperatures average 32°C (90°F) with 77% 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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Ko Larn this rarely lasts long on the ground.
For more on Ko Larn's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ko Larn climate page.
