Climate Insights for Tianshui

The climate in Tianshui is temperate. The average annual temperature is 10°C and approximately 798mm of precipitation falls per year. July is the wettest month, receiving around 137mm of rainfall. Tianshui is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, December, February, when temperatures can drop to -7°C. Snowfall occurs from January to December, with around 60cm accumulating over the season.

Temperatures in Tianshui vary considerably across the year, with a 34°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 27°C and the mean temperature sits around 22°C. The coldest month is January, when overnight lows fall to -7°C and the daily average is -2°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 7°C shift in average temperatures.

Tianshui is a relatively dry area, receiving approximately 798mm of precipitation annually, which averages out to around 66mm per month. The wettest month is July, averaging 137mm of rainfall. August and September also tend to see above-average precipitation. The driest month is December, with just 12mm. That's 125mm less than July, 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. Snowfall is a regular feature from January to December, with around 60cm accumulating over the season. February typically sees the most snow at around 16cm.

Tianshui is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

It is currently summer in Tianshui, which began on June 21, 2026. Tianshui 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 27°C, while the coldest stretch bottoms out in January near -7°C. Autumn is next, beginning on September 23, 2026 (9 days from now).

The best time to visit Tianshui is during May and June, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 80mm per month. By contrast, July can be uncomfortably hot with highs reaching 27°C, while January is the coldest period with lows dropping to -7°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Tianshui 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.