Weather in Tianjin

Tianjin is in China at 39.1°N. The 2001–2020 NASA POWER daily record describes a continental climate with a wide temperature swing. Rain is wet season runs from June to August, inside an annual total of 533 mm. The wettest month is July at 156 mm; the driest is January at 2 mm.

July is the warmest month (average 27.7°C, high 33.3°C) and January is the coolest (average -3.5°C, low -8.7°C). From the coolest night in January (-8.7°C) to the hottest afternoon in July (33.3°C), the raw range is 42.0°C. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are April, May, and September.

Best months to visit Tianjin

The three months with the highest comfort score are April, May, and September: April (14.2°C average, 25 mm, 46% humidity); May (21.4°C average, 36 mm, 45% humidity); September (21.5°C average, 53 mm, 64% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you want the wet season itself — fewer crowds, greener landscape, heavier rain — aim at June–August instead of the score.

Temperature through the year

The heat peaks in July, when the typical afternoon is 33.3°C. The opposite pole is January, when mornings average -8.7°C.

Mean high across all twelve months is 19.4°C and mean low is 6.7°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

Rain through the year

The wet season in Tianjin starts in June and ends in August (June, July, and August). July is the core of it at 156 mm. January is the other extreme, with 2 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. July averages 14 such days; January averages 1.

What stands out month by month

January is the coolest month, with lows around -8.7°C and highs near 1.7°C. Rainfall is 2 mm. February brings 6 mm and 1 rainy days; temperatures run from -5.6°C to 5.6°C. March stands apart from the months beside it: 13.8°C / -1.0°C and 9 mm. April: 22.3°C high, 6.1°C low, 25 mm rain, 46% humidity. In May, Tianjin averages 29.3°C by day and 13.4°C at night, with 36 mm of rain. The wet season opens in June. Expect 80 mm and 10 rainy days, with nights around 19.1°C.

July is both the hottest and wettest month: highs around 33.3°C, 156 mm of rain, and 67% humidity. By August the wet season is ending. Tianjin still sees about 122 mm, but the next month is usually leaner. In September, Tianjin averages 27.9°C by day and 15.1°C at night, with 53 mm of rain. In October, Tianjin averages 20.5°C by day and 7.2°C at night, with 29 mm of rain. November: 10.7°C high, -0.9°C low, 14 mm rain, 61% humidity. December stands apart from the months beside it: 3.0°C / -6.8°C and 3 mm.

How Tianjin compares inside China

Beijing is about 108 km away: Tianjin is 1.0°C warmer than Beijing in its hottest month and a similar annual rainfall (533 mm in Beijing). Beijing’s wettest month is July (151 mm) versus July here.

Jinan is about 276 km away: Tianjin is 0.5°C warmer than Jinan in its hottest month and 206 mm drier over the year than Jinan. Jinan’s wettest month is July (188 mm) versus July here.

Weifang is about 319 km away: Tianjin is about as warm as Weifang at the hot peak and 131 mm drier over the year than Weifang. Weifang’s wettest month is July (168 mm) versus July here.