Wikitravel about Israel
Israel  (Hebrew: מדינת ישראל Medinat Yisra-el; Arabic: دولَة إِسرائيل Dawlat Isrā'īl) is a small yet diverse Middle Eastern country with a long coastline on the eastern Mediterranean Sea and a small window on the Red Sea at the Gulf of Eilat (Aqaba). Israel is bordered by Egypt and the Gaza Strip to the southwest, by Jordan and the West Bank to the east, and by Syria and Lebanon to the north. It shares borders to the Jordan River and the Dead Sea with the West Bank and Jordan. The West Bank, East Jerusalem, and the Gaza Strip have been under Israeli de-facto rule since 1967. In addition to the majority Palestinian Arab populations living in these regions, the Israeli Government has built many Israeli settlements in the West Bank and East Jerusalem as well as in the annexed Golan Heights.
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The Land of Israel, known in Hebrew as Eretz Yisrael, has been sacred to the Jewish people since Biblical times. According to the Torah, the Land of Israel was promised to the three Patriarchs of the Jewish people, by God, as their homeland; scholars have placed this period in the early 2nd millennium BCE. According to the traditional view, around the 11th century BCE, the first of a series of Israelite kingdoms and states established rule over the region; these Israelite kingdoms and states ruled intermittently for the following one thousand years. The sites holiest to Judaism are located within Israel.
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fetch info from http://en.wikipedia.org/wiki/Geography_of_Israel#Climate
The weather in Israel:
It is important to pack for the right weather:
temperatures can vary widely depending on the time of the year and the location on Israel:
SUMMER (Jun/Jul/Aug/Sep): Temperatures in the high 80-'s, 90-'s (26-32c.). Tel Aviv, and Tiberias will be hot and humid (like New York or Miami). Jerusalem is dryer and cooler, particularly at night. Masada and Eilat are extremely hot (110+!)(43c.)...but dry. no rain.
SPRING/FALL The best for a tour to Israel. (late Mar/Apr/May & late Sep/Oct/Nov): Daytime temperatures will be very pleasant: 60-70-ish (15-20c.) in most of the country (still hot, though, at the Red and Dead Seas). Jerusalem will be in the 40-50-'s (5-10c.)in the evening. There can be some rain.
WINTER (Dec/Jan/Feb/early Mar): Winter weather can fluctuate. Some winters are mild and sunny, some severe and overcast. There's often heavy rain and, in January and February, even snow sometimes. It'll probably be in the 50-'s, 60-'s (10-15c.) most places, but in the 40-'s (5c.) in Jerusalem and the Galilee hills - and very cold at night. A tour to Israel in the winter is possible and with some luck - can be very enjoyable.