The highest day temperature in March 2026 was 91°F. The lowest night temperature was 76°F. The average values for day and night temperatures during March were 88.0°F и 78.6°F respectivly.

The average sea surface temperature in March 2026 for Unawatuna was 87.7°F. The maximum and minimum values were 86.0°F and 89.6°F respectively.

Most of the days in March are cloudy but you can also expect sunny or gloomy days.

Precipitation total in March for Unawatuna is 3.4 in. It makes march one of the least rainy months of the year.

The average wind speed in March is 5.9 mph. It makes March one of the most windless months of the year for Unawatuna.

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 Unawatuna in March is 7.9 hours.