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How does annual rainfall vary across Guangdong province?
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Guangdong
Bridge between Hong Kong and Shenzhen, Guangdong province, on the Chinese mainland.
Annual rainfall in Guangdong typically ranges from approximately 60 to 80 inches (1,500 to 2,000 mm) per year.1
The distribution of this precipitation across the province is influenced by several geographic factors:
- Distance from the coast: Rainfall amounts generally decrease as one moves from the coast toward the northwest.1
- Topography and exposure: Precipitation levels increase with higher elevations and greater exposure to the prevailing summer monsoon winds.1
The rainfall regime is characterized by a distinct seasonal pattern, with a rainy season lasting from mid-April to mid-October. More than half of the total annual precipitation occurs between June and August, often associated with tropical cyclones (typhoons) that frequent the region from July through September. Conversely, the driest period in the province occurs from December to February.1