Ko Si Chang Temperature by Month

The average annual maximum temperature in Ko Si Chang, 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 Si Chang compares to cities worldwide.

The temperature in Ko Si Chang remains steady throughout the year, providing a consistently very warm climate. Maximum daytime temperatures range from a very warm 33°C (91°F) in April to a very warm 31°C (88°F) in January. Nights are mild year-round, with lows ranging from 28°C (82°F) in April to 24°C (75°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Ko Si Chang by month:

The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. April, the warmest month, gets 205 hours of sunshine.

The chart below shows the average temperature throughout the year:

Ko Si Chang'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:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Si Chang, January is the coolest month, with average highs of 31°C (88°F) and humidity around 73%, considered high. In April, the warmest month, temperatures average 33°C (91°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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Ko Si Chang's weather, including monthly rainfall, sunshine hours, and humidity, visit our Ko Si Chang climate page.