Rach Gia Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Rach Gia, Kien Giang , Vietnam. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's now guide you through the details for a complete overview.
Rach Gia has a notably wet climate with abundant precipitation, recording 2222 mm (87 in) of rainfall per year. It does, however, have a distinct dry and rainy season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, September receives substantial rainfall, averaging 345 mm (14 in) of precipitation, recorded across 20 rainy days.
In contrast, the driest month, February brings less rainfall, with 17 mm (0.7 in) over 4 rainy days.
September, the wettest month, has a maximum daytime temperature of 31°C (88°F). The city receives 163 hours of sunshine in this period. During the driest month February you can expect a temperature of 32°C (90°F). For more detailed insights into the city's temperatures, visit our Rach Gia Temperature page.
Daily Historical Precipitation
30-year average (1996-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Rach Gia's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Rach Gia spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Vietnam: City Comparison
The map below shows the annual precipitation across Vietnam. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Rach Gia vs World: Rainfall Compared
Rach Gia's average annual precipitation is 2222 mm (87 in). Let's compare this to some popular worldwide tourist destinations:
Athens, Greece, receives an average annual precipitation of 400 mm (16 in), making it one of the drier Mediterranean climates with rainfall mostly in winter.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- 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.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Rach Gia's weather, including sunshine hours, humidity levels, and temperature data, visit our Rach Gia Climate page.
