On average across the year, yes, El Salvador is hotter than Malta . El Salvador has an average temperature of 26°C/79°F and Malta has an average temperature of 19°C/66°F.
El Salvador's hottest month is April, with an average maximum temperature of 33°C/91°F, which is hotter than Malta's hottest month (August, with an average maximum temperature of 32°C/90°F).
On average across the year, no, El Salvador is not colder than Malta . El Salvador has an average minimum temperature of 21°C/70°F and Malta has an average minimum temperature of 16°C/61°F.
El Salvador's coldest month is December, with an average minimum temperature of 19°C/66°F, which is not colder than Malta's coldest month (January, with an average minimum temperature of 9°C/48°F).
On average across the year, no, El Salvador has less rain than Malta. El Salvador has an average annual rainfall of 400mm and Malta has an average annual rainfall of 406mm.
El Salvador's wettest month is August, with an average monthly rainfall of 87mm, which is wetter than Malta's wettest month (November, with an average monthly rainfall of 86mm).