Malta Island is located in the Mediterranean Sea located to the south of Italy. Valletta is a beautiful town with unique architecture. The island has some of the best beaches in country. Unfortunately, Malta beaches are rather mediocre even by European standards. Shore and seabed: rocks, sand. 
Summer half of the year, if the main purpose of your trip is a beach vacation.
Water temperature, C
Wind speed, meter/sec
Feel free to ask any questions & get free help from our travel community. Any comments or ideas are also appreciated:
In most cases you will have to collect some papers (from your job & from your bank) + travel plan + air tickets booking (or just a reservation) + hotel booking (or just a reservation) + travel insurance.
You'd better read information from Malta Embassy in Sri Lanka: