Shah Alam Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Shah Alam, Selangor, Malaysia. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's explore the details to provide you with a complete overview.
Shah Alam has a relatively rainy climate with high precipitation levels, averaging 2374 mm (93 in) of rainfall annually. Despite the high annual total, it does experience a distinct rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The seasons in Shah Alam, bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 344 mm (14 in) of precipitation. This rainfall is distributed across 25 rainy days.
In contrast, the driest month, June, experiences much less rainfall, totaling 117 mm (4.6 in) over 12 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.November, the wettest month, has a maximum daytime temperature of 32°C (90°F). The city receives 152 hours of sunshine in this period. During the driest month June you can expect a temperature of 33°C (91°F). For more detailed insights into the city's temperatures, visit our Shah Alam Temperature page.
Daily Historical Precipitation
47-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Shah Alam's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Shah Alam spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Malaysia: City Comparison
The map below shows the annual precipitation across Malaysia. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Shah Alam vs World: Rainfall Compared
Shah Alam's average annual precipitation is 2374 mm (93 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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.
- 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 Shah Alam's weather, including sunshine hours, humidity levels, and temperature data, visit our Shah Alam Climate page.
