The temperature is about 10-14C and maybe higher if the weather is sunny and perfectly fine, but generally, cold air oftern attack Guangzhou usually in this month, the weather is overcast and rainy then. I am not sure how is it in 2010's Feb. Suggest you see the weather forecast a couple of days in advance.
Guangyuan Xilu gathers many muslim eateries. List of some muslim restaurants:
Wuyang Muslim Resntaurant: 325, Zhongshan Liulu, Yuexiu District
Maharaja Indian Kabab Corner Daily 11am-2:30pm, 5-10:30pm. No cards. Shop S217, Shopping Arcade, 2/F, China Hotel, Liu Hua Lu