This is a map (pdf-version) based on the numbers published by Erik Zachte, statistics manager of Wikimedia Foundation. It answers to the question which language versions of Wikipedia are mostly visited in a specific country.
Similar to the map of Europe, we see that only a small number of languages is relevant. In all of these countries, where Arabic Wikipedia is visited according to the statistics, English has an important role. In none of these countries Arabic Wikipedia is dominant, while in some European languages the national language version is. It should be noted that a part of the success of English is caused by the fact that in some Arabic countries internet is used especially by foreign residents of North American or European origin.
Very clearly we become aware of French colonial past, mostly in North Western Africa. In countries such as Morocco French Wikipedia even has more significance than English. One of the most important languages in the region is Hebrew (or Ivrit) due to the economic and democratic status of Israel. In general, people in the countries on this map visit Wikipedia much less than in Europe. While Germany has a share of the global total of 7.3%, Israel’s is 0.4% and Djibouti’s only 0.002%.
Update: See also the map about where the page views come from.