Adams Peak Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Adams Peak, Sri Lanka. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's break down all the details for a clearer picture.
Adams Peak experiences significant rainfall throughout the year, averaging 4423 mm (174 in) of precipitation annually.
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, November receives substantial rainfall, averaging 647 mm (25 in) of precipitation, recorded across 16 rainy days.
In contrast, the driest month, August brings less rainfall, with 241 mm (9.5 in) over 12 rainy days.
November, the wettest month, has a maximum daytime temperature of 28°C (82°F). The city receives 211 hours of sunshine in this period. During the driest month August you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Adams Peak Temperature page.
Daily Historical Precipitation
42-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Adams Peak's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Adams Peak spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Sri Lanka: City Comparison
The map below shows the annual precipitation across Sri Lanka. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Adams Peak vs World: Rainfall Compared
Adams Peak's average annual precipitation is 4423 mm (174 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.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
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 Adams Peak's weather, including sunshine hours, humidity levels, and temperature data, visit our Adams Peak Climate page.
