Chanthaburi Temperature by Month

Chanthaburi in Chanthaburi Province, Thailand enjoys a stable climate, with daytime temperatures staying close to 32°C (90°F) throughout the year. Explore the full monthly breakdown below.

With little seasonal fluctuation, Chanthaburi offers a predictable and steady climate. Maximum daytime temperatures reach a very warm 33°C (91°F) in April and a very warm 31°C (88°F) in September. At night, lows range from 26°C (79°F) to 23°C (73°F) throughout the year.

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

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. April, the warmest month, sees 208 hours of sunshine.

The chart below shows the average temperature throughout the year:

Chanthaburi's average annual maximum temperature is 32°C (90°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.

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.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

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 Chanthaburi, September is the coolest month, with average highs of 31°C (88°F) and humidity around 86%, considered very high. In April, the warmest month, temperatures average 33°C (91°F) with 78% 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 Chanthaburi this rarely lasts long on the ground.

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