Measurements:
°C
°F
CURRENT WEATHER
05:43
Negombo
80°F
SW 19 mph
Feels like: 84°F
Precip: 0%
World Resorts Sri Lanka Negombo Weather

7 Day Weather Forecast

12.18
thu
DAY
88°F
S 16 mph
precip
79%
NIGHT
80°F
SW 17 mph
precip
0%
12.19
fri
DAY
86°F
S 15 mph
precip
83%
NIGHT
78°F
SW 15 mph
precip
100%
12.20
sat
DAY
86°F
S 13 mph
precip
60%
NIGHT
78°F
SW 16 mph
precip
0%
12.21
sun
DAY
86°F
S 16 mph
precip
0%
NIGHT
76°F
SW 16 mph
precip
0%
12.22
mon
DAY
84°F
NW 15 mph
precip
0%
NIGHT
76°F
SW 16 mph
precip
0%
12.23
tue
DAY
84°F
NW 13 mph
precip
0%
NIGHT
74°F
SW 15 mph
precip
0%
12.24
wed
DAY
84°F
NW 12 mph
precip
0%
NIGHT
76°F
SW 16 mph
precip
0%

Negombo Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Negombo was 28.1°F. The maximum and minimum values were 27.8°F and 28.3°F respectively.

Negombo on the Weather Map

Best Time to Visit Negombo
The most sunny months:
February 19 days
January 18 days
March 16 days
The most warm months:
April 94.3 °F
March 94.3 °F
February 93.3 °F
Warmest sea temperature:
April 90.5 °F
May 89.4 °F
March 88.8 °F
The most cold months:
August 88.8 °F
September 88.9 °F
July 89.0 °F
The most rainy months:
June 15 days
October 14 days
July 14 days
The most windy months:
June 13 mph
July 12 mph
August 12 mph
more details