Cha Am Temperature by Month

The average annual maximum temperature in Cha Am, Petchaburi Province, Thailand is 32°C (90°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Cha Am compares to cities worldwide.

Cha Am enjoys a stable climate with temperatures staying pretty much the same throughout the year. Maximum daytime temperatures range from a very warm 30°C (86°F) in December to a very warm 34°C (93°F) in April. Nights are consistently cool, with lows between 27°C (81°F) and 24°C (75°F).

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

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. April, the city's warmest month, averages 240 hours of sunshine.

The chart below shows the average temperature throughout the year:

Cha Am'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:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters, and seasons reversed compared to Europe.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

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 Cha Am, December is the coolest month, with average highs of 30°C (86°F) and humidity around 67%, considered high. In April, the warmest month, temperatures average 34°C (93°F) with 73% 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 Cha Am's weather, including monthly rainfall, sunshine hours, and humidity, visit our Cha Am climate page.