Electricity in Israel
The Israeli power supply is single phase 220 volts at 50 Hertz. Most power sockets in Israel have three pinholes, but many of them will work with double-pin European plugs. Visitors who want to use shavers, traveling irons and other small appliances may need both transformers and adaptor plugs. In Israel the power sockets used are of type H.
In general, Israel is a very casual place. Business attire is rare, used only in formal occasions.
Combine this attitude with a very hot and humid summer climate and you get a relatively casual professional atmosphere.
Jerusalem is a bit colder at night, you may need a light jacket.
While visiting holy sites in the old city of Jerusalem visitors should be dressed modestly.
For men: Long pants or at least long shorts, and no sleeveless tops.
For women: Tops that cover the collar bone and no sleeveless tops, skirts long enough to cover at a minimum the knees.
Shabbat (Saturday) in Israel
Besides the Jewish holidays, in a sense, there’s a Jewish holiday every week – Shabbat. Shabbat begins at sundown on Friday and ends on Saturday at sundown. All government offices and related businesses are closed. Approximately an hour before sundown on Friday almost all businesses, retail stores, and restaurants also close. In Tel Aviv, however, there are a growing number of restaurants and cafes that are open on Shabbat. Also open on Shabbat in Tel Aviv are AM:PMs (like 7/11) and Tiv Ta’ams (grocery store).
The weather in Tel Aviv in September is generally pleasant, varying form 22-30 degrees Celsius . In Jerusalem temperature vary from 18-28,
The New Israeli Shekel (NIS, or ILS) is the official national currency. All the major credit cards are accepted in Israel in places displaying the emblems at the entrance. 1 Euro is about 4 NIS, and 1 Dollar is about 3.5 NIS.