Piliyandala Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in Piliyandala (Colombo District). The numbers are calculated over a 30-year period to provide a reliable average.

• A lot of rain (rainy season) falls in the months: March, April, May, June, July, August, September, October, November and December.
• On average, October is the wettest month with 362 mm of precipitation.
• On average, January is the driest month with 85 mm of precipitation.
• The average amount of annual precipitation is 2746 mm.