Si Racha Temperature by Month

Si Racha, Chon Buri Province, Thailand has a consistently very warm climate year-round, with daytime highs averaging 33°C (91°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

The climate in Si Racha remains fairly constant, offering very warm temperatures throughout the year. Maximum daytime temperatures reach a very warm 34°C (93°F) in April, dropping to a very warm 32°C (90°F) in December. Nighttime lows stay between 27°C (81°F) and 23°C (73°F).

The chart below illustrates the average maximum day and minimum night temperatures in Si Racha 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:

Si Racha's average annual maximum temperature is 33°C (91°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short 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.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

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 Si Racha, December is the coolest month, with average highs of 32°C (90°F) and humidity around 70%, considered high. In April, the warmest month, temperatures average 34°C (93°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.

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 Si Racha's weather, including monthly rainfall, sunshine hours, and humidity, visit our Si Racha climate page.