Seeduwa Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Seeduwa.
Climate overview of Seeduwa
Seeduwa, Gampaha District, Sri Lanka, enjoys a steady climate throughout the year, with daytime temperatures typically around 31°C (88°F). March is the warmest month at 33°C (91°F), while January is the coolest at 30°C (86°F).
The city receives considerable rainfall, with around 2447 mm (96 in) annually. October is the wettest month. It has a distinct rainy season from April to November. The most sunshine falls in March, with an average of 9.2 hours of daily sunshine.
Seeduwa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Seeduwa — and find the best time to visit.
Monthly Temperature in Seeduwa
The temperature in Seeduwa remains steady throughout the year, providing a consistently very warm climate. Typically, average maximum daytime temperatures range from a very warm 33°C (91°F) in March to a very warm 30°C (86°F) in the coolest month, January.
Nights vary from 26°C (79°F) in March to around 24°C (75°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Seeduwa
Seeduwa has a relatively rainy climate with high precipitation levels, averaging 2447 mm (96 in) of rainfall annually. The climate in Seeduwa shows significant variation throughout the year. Expect heavy rainfall in October, the wettest month, with an average of 347 mm (14 in) of precipitation over 15 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 56 mm (2.2 in) of rainfall over 5 rainy days. For more details, please visit our Seeduwa Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Seeduwa
Seeduwa offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between March (9.2 hours daily) and September (6.3 hours daily) provides a bit of variety for visitors and residents.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Seeduwa by Month
The relative humidity is high throughout the year in Seeduwa.
The city experiences its highest humidity in June, reaching 79%. In February, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Seeduwa
For a more comfortable experience, start your day early when the weather is cooler, or take advantage of the gentle breezes in the late afternoon. Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.
Frequently asked questions about the climate in Seeduwa
What is the best time to visit Seeduwa?
January typically offers the most optimal weather in Seeduwa. In contrast, April, May, June, July, August, September, October and November tend to have less optimal conditions. Seeduwa has a distinct rainy season from April to November.
What temperatures can I expect in Seeduwa?
Daytime highs range from 30°C (86°F) in January to 33°C (91°F) in March. Nighttime lows range from 24°C (75°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Seeduwa get?
Annual rainfall is around 2447 mm (96 in). October is the wettest month with 347 mm (14 in), while January is the driest with 56 mm (2.2 in).
How sunny is Seeduwa?
Seeduwa receives around 2,623 hours of sunshine per year. March is the sunniest month with 276 hours, while September is the cloudiest with just 189 hours. Overall, Seeduwa enjoys abundant sunshine.
Seeduwa 3-Day Forecast
Seeduwa 3-Day Forecast
Seeduwa on the map
Seeduwa is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Colombo
30°C (86°F) Galle29°C (84°F) Mirissa29°C (84°F) Hikkaduwa29°C (84°F) Negombo30°C (86°F) Kandy
28°C (82°F) Unawatuna29°C (84°F) Nuwara Eliya27°C (81°F) 
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