The maximum temperature in Negombo is on average 31°C over the year, with values generally ranging between 29°C in August and 33°C in March. The climate is very wet, with about 3,759 mm of precipitation per year. The monthly minimum is 86 mm in February and the maximum reaches 514 mm in June.
The climate is suitable for a trip to Negombo in: January, February, March, April, May, July, August, September, October, November and December. Nevertheless, the months when the weather is really pleasant are January, February, March and December.
For swimming, the most favorable period for water temperature is March, April and May, with a water temperature above 28.7°C.
However, the best time to fully enjoy the beach and swimming is January, February, March, November and December.
Water sports are particularly favorable in: January, February, March, November and December. For scuba diving and snorkeling, the best months are January, February, March, November and December.
In terms of crowd levels, the quietest periods are in May and June, while crowding is high in January, February, July, August and December.
