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:
As for me, Valletta and Mdina are the only picturesque towns in Malta. All other towns, that I've been, are not interesting at all.
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: