Measurements:
°C
°F
CURRENT WEATHER
18:28
Negombo
86°F
E 11 mph
Feels like: 96°F
Precip: 100%
World Resorts Sri Lanka Negombo Weather

7 Day Weather Forecast

05.11
mon
DAY
90°F
E 8 mph
precip
80%
NIGHT
86°F
NE 9 mph
precip
100%
05.12
tue
DAY
90°F
E 13 mph
precip
100%
NIGHT
86°F
NE 14 mph
precip
100%
05.13
wed
DAY
86°F
NE 15 mph
precip
100%
NIGHT
84°F
NE 14 mph
precip
100%
05.14
thu
DAY
84°F
NE 16 mph
precip
100%
NIGHT
84°F
NE 13 mph
precip
100%
05.15
fri
DAY
86°F
NE 20 mph
precip
100%
NIGHT
82°F
NE 11 mph
precip
100%
05.16
sat
DAY
78°F
NE 6 mph
precip
100%
NIGHT
82°F
NE 12 mph
precip
100%
05.17
sun
DAY
78°F
N 8 mph
precip
100%
NIGHT
82°F
N 12 mph
precip
100%

Negombo Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Negombo was 30.0°F. The maximum and minimum values were 29.2°F and 30.6°F respectively.

Negombo on the Weather Map

Best Time to Visit Negombo
The most sunny months:
January 18 days
February 18 days
March 16 days
The most warm months:
April 94.0 °F
March 93.9 °F
February 92.8 °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