| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 5.3° | -6.6° | 4mm | 2.6 | 35 |
| February | 8.7° | -2.9° | 6.6mm | 4.2 | 48 |
| March | 15.9° | 2.3° | 17.3mm | 4.9 | 77 |
| April | 22.2° | 6.9° | 32.7mm | 6.1 | 88 |
| May | 25.3° | 11.5° | 56.6mm | 8.6 | 83 |
| June | 28.7° | 15.4° | 54.6mm | 8.5 | 76 |
| July | 30.2° | 18.3° | 128.5mm | 12.2 | 63 |
| August | 29.3° | 18.1° | 86.6mm | 9.1 | 73 |
| September | 23.3° | 13.4° | 79.3mm | 11.4 | 77 |
| October | 18.1° | 7.2° | 47.7mm | 9.1 | 76 |
| November | 12.3° | -0.1° | 11.9mm | 3.8 | 65 |
| December | 6.6° | -6° | 2.5mm | 2.3 | 41 |
January in Tianshui averages a daily high of 5.3°C with nights around -6.6°C. Rain is rare — about 2.6 wet days and 4mm across the month. Demanding conditions — pack for it and plan indoor options.
February in Tianshui averages a daily high of 8.7°C with nights around -2.9°C. Expect roughly 4.2 wet days totalling 6.6mm. Demanding conditions — pack for it and plan indoor options.
March in Tianshui averages a daily high of 15.9°C with nights around 2.3°C. Expect roughly 4.9 wet days totalling 17.3mm. Comfortable conditions for being outdoors all day.
April in Tianshui averages a daily high of 22.2°C with nights around 6.9°C. Expect roughly 6.1 wet days totalling 32.7mm. Comfortable conditions for being outdoors all day.
May in Tianshui averages a daily high of 25.3°C with nights around 11.5°C. Expect roughly 8.6 wet days totalling 56.6mm. Comfortable conditions for being outdoors all day.
June in Tianshui averages a daily high of 28.7°C with nights around 15.4°C. Expect roughly 8.5 wet days totalling 54.6mm. Comfortable conditions for being outdoors all day.
July in Tianshui averages a daily high of 30.2°C with nights around 18.3°C. Expect roughly 12.2 wet days totalling 128.5mm. Generally workable, with some weather to plan around.
August in Tianshui averages a daily high of 29.3°C with nights around 18.1°C. Expect roughly 9.1 wet days totalling 86.6mm. Generally workable, with some weather to plan around.
September in Tianshui averages a daily high of 23.3°C with nights around 13.4°C. Expect roughly 11.4 wet days totalling 79.3mm. Comfortable conditions for being outdoors all day.
October in Tianshui averages a daily high of 18.1°C with nights around 7.2°C. Expect roughly 9.1 wet days totalling 47.7mm. Comfortable conditions for being outdoors all day.
November in Tianshui averages a daily high of 12.3°C with nights around -0.1°C. Expect roughly 3.8 wet days totalling 11.9mm. Generally workable, with some weather to plan around.
December in Tianshui averages a daily high of 6.6°C with nights around -6°C. Rain is rare — about 2.3 wet days and 2.5mm across the month. Demanding conditions — pack for it and plan indoor options.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Tianshui peaks at 88.
Based on 30 years of records, April–May scores highest for comfort in Tianshui, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 30.2°C.
July is the wettest, averaging 128.5mm of rain across roughly 12.2 wet days.
January is the coolest month, with average daily highs around 5.3°C.