The Sinai area of Egypt is an arid desert climate with two main seasons, both of which are very dry.
The winter months fall between November and March.
During this time the day is still warm but the night time temperature can drop to about 12°C.
Summer weather is very hot and dry. The low humidity makes the high temperatures a lot more bearable, but does mean that dehydration can become a problem if water is not drunk sufficiently.