Dehiwala Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in Dehiwala (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: April, May, June, July, August, September, October, November and December.
On average, October is the wettest month with 355 mm of precipitation.
On average, January is the driest month with 74 mm of precipitation.
The average amount of annual precipitation is 2638 mm.

Current rainfall in Dehiwala

Sat Nov 02

31°C | 24°C

14 km/h

5.9 mm

broken clouds and rain

hourly forecast

Sun Nov 03

31°C | 24°C

11 km/h

5 mm

broken clouds and rain

hourly forecast

Mon Nov 04

30°C | 24°C

11 km/h

13 mm

broken clouds and thunder

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

This site provides you with all the information you need about the climate in Dehiwala.

Our site offers climate and forecast data for every country in the world. Are you going to Sri Lanka? On this website you can find historical weather averages for many cities in Sri Lanka. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Travel Inspiration

10 Hidden gems in Asia you need to visit

Explore 10 hidden gems in Asia offering authentic experiences, from pristine beaches and remote islands to cultural treks and peaceful mountain villages.

Safari at Yala West National Park

The best travel time is indicated by October to December. However from December to March you have the biggest chance to see leopards and elephants with March as the best month.

Visit Adams Peak

Adam's Peak is a holy mountain which pilgrims visit for over a thousand years. Here Adam (according to the Christians) would have set his first footstep after being sent down from heaven.

From Hikkaduwa to Hiriketiya: where to stay on the South Coast of Sri Lanka

We have selected a few of our favorite places to stay for you. With beautiful gardens, welcoming hosts, great food - these should definitely be on your bucket list!