page_title: Yibin
section_title: Geography and climate
hierarchical_section_title: Yibin / Geography and climate
caption_attribution_description: English: China AMS Topographic Maps
context_page_description: Yibin is a prefecture-level city in the southeastern part of Sichuan province, China, located at the junction of the Min and Yangtze Rivers. Its population was 4,471,840 inhabitants according to the 2010 census of whom 836,340 lived in the built-up area made of Cuiping District.
context_section_description: Yibin is located in the southeast portion of Sichuan at the southern end of the Sichuan Basin, bordering Zhaotong (Yunnan) to the south, Luzhou to the east, Liangshan Yi Autonomous Prefecture and Leshan to the west, and Zigong to the north, and has a total area is 13,283 square kilometres (5,129 sq mi). The city ranges in latitude from 27° 50'−29° 16' N, and in longitude from 103° 36'−105° 20' E, stretching 153 km (95 mi) east-west and 150 km (93 mi) north-south.
  The city is located at the confluence of the Min and Yangtze Rivers.  Above Yibin, the Yangtze is also known as the Jinsha River.  Below Yibin, the Yangtze is known in Chinese as the Chang Jiang or "Long River."
  As with the rest of the Sichuan Basin, Yibin has a monsoon-influenced humid subtropical climate (Köppen Cwa) with high humidity year-round; winters are short and mild while summers long, hot, and humid. The monthly 24-hour average temperature ranges from 7.9 °C (46.2 °F) in January to 26.9 °C (80.4 °F) in July and August; the annual mean is 18.03 °C (64.5 °F). Despite its location in the Yangtze River valley, it is still 1.5 to 2.0 °C (2.7 to 3.6 °F) cooler than Chongqing, located further downstream, in its warmest months. Frost is uncommon and the frost-free period lasts 347 days. Rainfall is common year-round but is the greatest in July and August, with very little of it in the cooler months. With monthly percent possible sunshine ranging from 10% in December and January to 42% in August, the city receives only 1,018 hours of bright sunshine annually; Yibin has one of the lowest annual sunshine totals nationally, lower than even nearby Chengdu and Chongqing. Spring (March–April) tends to be sunnier and warmer in the day than autumn (October–November).
caption: Map including Yibin (labeled as I-PIN (SUIFU) 宜賓(敘州)) (AMS, 1954)
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