Ratchaburi Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Ratchaburi. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s explore all the details to give you a full picture.

Ratchaburi is known for its substantial rainfall, with annual precipitation reaching 1183 mm.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Ratchaburi can be quite wet during September, receiving approximately 221 mm of precipitation over 19 rainy days.

In contrast December, experiences much drier conditions, with 12 mm of rainfall, spread across a single rainy day.

September, the wettest month, has a maximum daytime temperature of 34°C. The city receives 107 hours of sunshine in this period. During the driest month December you can expect a temperature of 32°C. For more detailed insights into the city’s temperatures, visit our Ratchaburi Temperature page.

Annual Precipitation in Thailand

The map below shows the annual precipitation across Thailand. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Ratchaburi’s average annual precipitation is 1183 mm. Let’s compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm of rainfall mostly during the winter months.

Beijing, China, receives 560 mm of annual precipitation, concentrated in the summer months.

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Ratchaburi:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

For more detailed information about Ratchaburi’s weather, including sunshine hours, humidity levels, and temperature data, visit our Ratchaburi Climate page.