The highest day temperature in January 2025 was 90°F. The lowest night temperature was 74°F. The average values for day and night temperatures during January were 85.6°F и 78.0°F respectivly.

The average sea surface temperature in January 2025 for Negombo was 85.7°F. The maximum and minimum values were 84.8°F and 87.2°F respectively.

Most of the days in January are sunny but you can also expect cloudy and gloomy days.

Precipitation total in January for Negombo is 2.6 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 11.1 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Negombo in January is 8.6 hours.