Climate Insights for Shanwei

The climate in Shanwei is warm and mild. The average annual temperature is 23°C and approximately 1960mm of precipitation falls per year. August is the wettest month, receiving around 368mm of rainfall. Shanwei is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, September, August. The coldest months are January, February, December, when temperatures can drop to 14°C.

Shanwei sees moderate temperature variation throughout the year, ranging from 14°C to 30°C. The warmest month is July, when average highs reach 30°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 14°C and an average of 16°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between November and December, with a 4°C shift in average temperatures.

Shanwei is a fairly wet location, receiving approximately 1960mm of precipitation annually, which averages out to around 163mm per month. The wettest month is August, averaging 368mm of rainfall. June and July also tend to see above-average precipitation. The driest month is December, with just 20mm. That's 348mm less than August, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Shanwei is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 15km/h in winter, 13km/h in spring, 13km/h in summer, 14km/h in autumn.

It is currently summer in Shanwei, which began on June 21, 2026. Shanwei is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 30°C, while the coldest stretch bottoms out in January near 14°C. Autumn is next, beginning on September 23, 2026 (9 days from now).

The best time to visit Shanwei is during January, February, March, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 46mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 30°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Shanwei based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.