Negombo Climate by Month
Negombo has a tropical rainforest climate and the city experiences a lot of rain. The rain is fairly evenly distributed over the year. Only in January the average rainfall is slightly lower. The temperatures are the same throughout the year. The average daytime temperature is around 30°C. These two factors combined causes a high humidity. Also tropical storms and hurricanes can occur in Negombo.
Average day and night temperature
The climate in Negombo remains fairly constant, offering very warm temperatures throughout the year. Average daytime temperatures reach a very warm 33°C in March. In January, the coolest month of the year, temperatures drop to a comfortable 30°C. At night, expect cooler temperatures, averaging 24°C during this month.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Negombo is known for its substantial rainfall, with annual precipitation reaching 2342 mm. Negombo can be quite wet during October, receiving approximately 338 mm of precipitation over 15 rainy days. In contrast January, experiences much drier conditions, with 48 mm of rainfall, spread across 4 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
Sunshine over the year
Negombo experiences moderate variation in sunshine hours across the seasons. With 9.2 hours daily sunshine in March, it dips to 6.3 hours in September, offering a balanced mix of sunny and overcast days.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is moderate throughout the year in Negombo.
Relative humidity over the year
The best time of year to visit Negombo in Sri Lanka
Negombo has high temperatures year round ranging between 29°C and 32°C.Other facts from our historical weather data:
March has an average maximum temperature of 33°C and is the hottest month of the year.
The coolest month is January with an average maximum temperature of 30°C.
October tops the wettest month list with 338 mm of rainfall.
January is the driest month with 48 mm of precipitation.
March is the sunniest month with an average of 276 hours of sunshine.
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