The highest day temperature in June 2025 was 86°F. The lowest night temperature was 71°F. The average values for day and night temperatures during June were 81.3°F и 77.7°F respectivly.

The average sea surface temperature in June 2025 for Sliema was 79.3°F. The maximum and minimum values were 72.0°F and 84.6°F respectively.

Almost all days in June are sunny. There is very low probability of clouds or gloomy days.

Precipitation total in June for Sliema is 0.1 in. It makes june one of the least rainy months of the year.

The average wind speed in June is 9.6 mph. It makes June one of the most windless months of the year for Sliema.

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 Sliema in June is 13.5 hours.