Mae Nam Beach Temperature by Month
Mae Nam Beach, Koh Samui, Thailand has a consistently comfortable 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.
Mae Nam Beach Monthly Temperatures
Year-round, Mae Nam Beach experiences a consistently comfortable climate. Maximum daytime temperatures range from a very warm 31°C (88°F) in May to a comfortable 28°C (82°F) in the coolest month, January. Nighttime temperatures range from 28°C (82°F) in May to 26°C (79°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Mae Nam Beach by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. May, the city's warmest month, sees 193 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
49-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 Mae Nam Beach Temperatures: 1976-2026
Browse day-by-day temperature records for Mae Nam Beach spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Mae Nam Beach 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
Mae Nam Beach vs World: Temperature Compared
Mae Nam Beach'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:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Mae Nam Beach?
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 Mae Nam Beach, January is the coolest month, with average highs of 28°C (82°F) and humidity around 83% — considered very high. In May, the warmest month, temperatures average 31°C (88°F) with 80% humidity — conditions that feel very 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 Mae Nam Beach's weather — including monthly rainfall, sunshine hours, and humidity — visit our Mae Nam Beach climate page.
