Based on daily climatic data collected from 86 weather stations from 1961 to 2009 in Guangdong Province and field experiments for different sowing date in early matured rice in five locations e.g. Shaoguan, Guangzhou, Zhaoqing, Zhanjiang, Shantou in 2009, the characteristics of climate change during growing season in early matured rice cultivars were analyzed to explore the feasibility of the sowing date under climate change. The results showed that: (1) since 1997, average temperature increased 0 8℃ than that of the contrast (1961-1996), above 10℃ accumulative temperature increased 139℃. Climate warming effect was accelerated, heat resource significantly improved in growth period of early matured rice in Guangdong province. Sunshine hour during growing season slightly decreased 11 hours than that of the contrast. Total precipitation during growing season slightly increased 60 mm compared to that of the contrast, with increasing variability between years. In early growing season, the relation coefficients (R2) of average temperature, above 10℃ accumulative temperature and sunshine hour were 0.2279, 0.241, 0.198, respectively, showed a significant difference. The relation coefficient (R2) of total precipitation was 0.0375, showed no significant difference. (2) since 1997, the date of terminating continuous low temperature and rainy period in spring (CLTR) were 12 days earlier than the mean value of the contrast (1961-1996), total days of CLTR decreased 4 days. It significantly differed between locations. For the date of terminating CLTR, it was 15-20 days earlier in the southern, 5 days earlier in middle and the northern. For total days of CLTR, it decreased 4-8 days in the southern region, and 3-5 days in middle and the northern region. Thus, the harm of CLTR was gradually abated in rice seedling. The ending dates of low temperature occurred in the May, which harmed in young panicle differentiation stage of rice, was earlier than the mean value of the contrast (1961-1996). Its frequency and influence became smaller and smaller in Guangdong. The first day continuous heavy rain period during the last 10 days of May to the first 10 days of June, called “Dragon Boat Water”, occurred after 6 June, it delayed 5 days than the contrast. With respect to the climatic resources, characteristics of meteorological hazards and rice varieties in Guangdong province, we suggested that the sowing date of early matured rice cultivars should be earlier, e.g. 7-10 days earlier in the southern region, 5-7 days earlier in middle region and 3-4 days earlier in the northern region. This study is not only for the adaptation to climate change but also important for readjusting agricultural farming system.